KR100547887B1 - Image data display device and method of mobile phone with camera - Google Patents

Abstract

The data display device of the cellular phone is configured to display a frame image data section by a camera for outputting captured screen image data and a synchronization signal, the mobile phone generating user data of the cellular phone, and a synchronization signal generated by the camera. And a selector for time-dividing the image data in the first section and selecting and outputting the user data in the second section, and a display unit for displaying the image data and the user data output from the selector in a corresponding display area.

Camera, data display, data selection

Description

Image data display device and method of mobile phone equipped with a camera {DEVICE AND METHOD FOR DISPLAYING DATA IN MOBILE TELEPHONE HAVING CAMERA}             

1 is a diagram showing a conventional configuration for transmitting display data in a cellular phone equipped with a camera.

Fig. 2 is a diagram showing the configuration of an apparatus for transmitting display data in a cellular phone equipped with a camera according to the first embodiment of the present invention.

FIG. 3 is a diagram for describing a characteristic of a selector selecting display data in FIG. 2; FIG.

4 is a diagram illustrating a procedure of selecting display data by a selector in FIG.

FIG. 5 is a diagram illustrating a procedure in which the mobile phone outputs display data in FIG. 2. FIG.

FIG. 6 is a diagram showing the configuration of an apparatus for transmitting display data in a cellular phone equipped with a camera according to a second embodiment of the present invention.

FIG. 7 is a diagram illustrating a procedure in which the mobile phone outputs display data in FIG. 6. FIG.

Fig. 8 is a diagram showing the configuration of an apparatus for transmitting display data in a cellular phone equipped with a camera according to a third embodiment of the present invention.

9 is a diagram showing the overall configuration of a mobile phone with a camera according to an embodiment of the invention.

FIG. 10 is a diagram showing in detail the configuration of selecting display data of a camera and a cellular phone according to the first embodiment of the present invention in FIG.

FIG. 11 is a diagram showing details of a configuration for selecting display data of a camera and a mobile phone according to the second embodiment of the present invention in FIG.

FIG. 12 is a diagram showing in detail the configuration of selecting display data of a camera and a cellular phone according to the third embodiment of the present invention in FIG.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data display apparatus and method for a mobile phone having a camera, and more particularly, to an apparatus and method for transmitting and displaying image data and user data on a display unit.

Currently, mobile phones are converting to a structure capable of transmitting high speed data in addition to voice communication functions. That is, by implementing a mobile communication network of the IMT 2000 standard, it is possible to implement high-speed data communication in addition to voice communication using the mobile phone. Data that can be processed by the mobile terminal performing the data communication may be packet data and image data.

In general, an image processing apparatus includes a camera for photographing an image and a display unit for displaying an image signal photographed from the camera. The camera may use a CCD or a CMOS sensor, and the display unit may use an LCD. In addition, with the miniaturization of the camera device, the device for capturing the image is becoming more and more miniaturized. In addition, the camera device is also mounted on a portable terminal. The portable terminal may capture a video screen and display the moving picture and the still picture, and transmit the captured screen to the base station.

At this time, the portable terminal with the camera is provided with user interface data (UI data) such as changes in RF reception sensitivity received from a base station, battery level indication, other user interface icons or characters, and photographing from the camera. Image data or picture data received from the base station should be displayed together.

1 is a diagram illustrating a method of displaying image data and user data in a mobile phone having a camera. As shown in FIG. 1, the display unit 30 displays a first display area 31 displaying image data captured by the camera 20, a second display area 33 displaying a state of the mobile phone 10, and the first display area 31. And a third display area 35 for displaying a menu for controlling image data. In this case, when the image data photographed by the camera 10 is displayed, the image data displayed on the first display area 31 becomes the image data photographed by the camera 10 and is displayed on the second and third display areas 33 and 35. The user data to be are user data generated in the mobile phone 10. Among the user data, the user data displayed on the second display area 33 may indicate the reception sensitivity of the mobile phone, or may be the remaining amount of battery and current time data, and the user data displayed on the third display area 35 may be Menu information for selecting a command for controlling (scroll, zoom) of the currently displayed image screen may be used.

As shown in FIG. 1, when the image data captured by the camera 20 and the user data generated by the mobile phone 10 are displayed on the display unit 20, the mobile phone 10 displays the image data and user data captured by the camera. It should be possible to control it properly when sending it. That is, the display paths of the image data photographed by the camera and the user data for the user interface should be independently controlled.

Accordingly, an object of the present invention is to provide an apparatus and method for transmitting data to be displayed on a display unit in a mobile phone having a camera.

Another object of the present invention is to provide an apparatus and method for time-divisionally transmitting image data of a camera and user data of a mobile phone in a frame section in a mobile phone having a camera and transmitting them to a display unit.

Still another object of the present invention is a device for transmitting image data of a camera to a display unit in a first section set when a vertical synchronization signal is generated in a mobile phone having a camera, and transmitting user data of the mobile phone to a display unit in a set second section. And providing a method.

According to an embodiment of the present invention, a data display device for a mobile phone includes: a camera for outputting captured screen image data and a synchronization signal; and a mobile phone control unit for generating user data of the mobile phone; And a selector for time-dividing the frame image data section by the synchronization signal generated by the camera to select the image data in the first section and to select and output the user data in the second section, the image data and the user output from the selector. And a display unit for displaying data.

DETAILED DESCRIPTION A detailed description of preferred embodiments of the present invention will now be described with reference to the accompanying drawings. It should be noted that the same components in the figures represent the same numerals wherever possible.

In the following description, specific details such as the transmission speed of the video signal of the camera, the video signal size, and the video signal size of the display unit are shown to provide a more general understanding of the present invention. It will be apparent to one of ordinary skill in the art that the present invention may be readily practiced without these specific details and also by their modifications.

In the embodiment of the present invention, the term “capture mode” refers to a mode in which an image signal is acquired through a camera and displayed on a display unit. The term path control mode refers to a mode for controlling a path of data transmitted to the display unit. In addition, the first path control signal is a term meaning a signal for activating a path for transmitting an image signal captured by a camera to the display unit, and the second path control signal is a signal for activating a path for the controller to access the display unit. The term means.

An apparatus for photographing and displaying an image according to an embodiment of the present invention will be described assuming a mobile phone. However, the apparatus and method according to the embodiment of the present invention can be equally applied to a portable communication device displaying an image using a camera in addition to the mobile phone.

2 is a diagram illustrating a configuration of an apparatus for transmitting image data and user data from the display unit 30 in the mobile phone 10 according to the first embodiment of the present invention.

Referring to FIG. 2, image data photographed by the camera 20 and user data generated by the mobile phone 10 are applied to the selector 40, respectively. The selector 40 is composed of a switch control unit 401 and a switch 403 as shown in FIG. 2, and time-switched switching the image data and the user data at a time size set in a synchronization section, respectively, and transmits them to the display unit 30.

Referring to the operation of the selector 40, first, image data photographed by the camera 20 is applied to the switch 403, and user data generated by the mobile phone 10 is also applied to the switch 403. The switch controller 401 controls the switch 403 according to the synchronization signal output from the camera 20 to transmit image data captured by the camera 20 or user data generated by the mobile phone 10 to the display unit 30.

After photographing the screen, the camera 20 transmits the captured image data to the display unit 30. At this time, the camera 20 generates a synchronization signal together with the captured image data, and the synchronization signal includes a horizontal sync signal and a vertical sync signal. The horizontal synchronization signal is generated in units of lines of the displayed screen, and the vertical synchronization signal is generated at the end of image data of one frame. In the embodiment of the present invention, it is assumed that the switch control unit 401 receives the vertical synchronization signal Vsync. Accordingly, the switch control unit 401 switches the image data of the camera 20 and the user data of the mobile phone 10 to the display unit 30 on a frame basis. Control the output.

3 is a diagram illustrating a switching control signal of the switch control unit 401. FIG.

Referring to FIG. 3, the section D denotes a period in which the vertical synchronization signal is generated, and the period t1 is a period for transmitting image data captured by the camera 20 to the display unit 30, and the period t2 is a mobile phone. It means a section for transmitting user data generated at 10. That is, the switch control unit 401 generates the signal as shown in FIG. 3 when the vertical synchronization signal Vsync is generated, and controls the switch 403 to connect the output of the camera 20 to the display unit 30 in the t1 section, and in the t2 section. The output of the cellular phone 10 is connected to the display unit 30. In addition, the falling edge signal of the signal shown in FIG. 3 output from the switch control unit 401 is applied to the mobile phone 10 as an interrupt signal. The mobile phone controller 10 outputs user data when the interrupt signal is received.

The switch control unit 401 for generating the switch control signal as shown in FIG. 3 may be implemented with a timer. In this case, when the vertical synchronization signal Vsync is generated in the camera 20, the timer is driven at this time to generate a timer signal that maintains the second logic state as shown in FIG. It may be designed to generate a signal that maintains the first logic state until the signal Vsync is generated. Here, the vertical synchronization signal Vsync is a signal generated after capturing one frame of image data in the camera 20, and the image data photographed at the t1 set time is transmitted to the display unit 30 through a switch. The t2 setting time may be set to a time for transmitting the user data. The switch control signal generated by the switch control unit 401 time-divisions one frame section and transmits image data generated by the camera 20 and user data generated by the mobile phone controller 10 to the display unit 30. Setting time can be set as needed.

Accordingly, the switch 403 transmits the output of the camera 20 to the display unit 30 in the period t1 and the output of the mobile phone 10 to the display unit 30 in the t2 period. In this case, the user data output from the mobile phone 10 is menu information of the state data of the mobile phone 10 displayed in the second display area 33 of the display unit 30 and the image data displayed in the third display area 35. Then, the display unit 30 displays image data output from the camera 20 on the first display area 31 and displays user data corresponding to the second and third display areas 33 and 35, respectively.

As described above, in the exemplary embodiment of the present invention, the synchronous interval of the image data is time-divided into the first interval t1 and the second interval t2, and the image data photographed by the camera 20 is transmitted to the display unit 30 in the first preset time interval t1. In the second section t2, the user data output from the mobile phone controller 10 is transmitted to the display unit 30.

4 is a flowchart illustrating a procedure of selecting display data by the switch control unit 401. FIG.

Referring to FIG. 4, the switch control unit 401 checks whether a vertical synchronization signal is generated in step 211. In this case, when the vertical synchronization signal is generated, the switch control unit 401 initializes the horizontal synchronization signal counter in step 213, and controls the switch 403 to connect the output of the mobile phone 10 to the display unit 30 in step 215. At this time, the counter has count data for setting the second predetermined time interval t2. Therefore, when the vertical synchronization signal is generated, the switch controller 401 enables the second set time period t2. In operation 217, the switch controller 401 generates an interrupt signal to the mobile phone 10. Accordingly, the mobile phone 10 outputs user data to be transmitted in the corresponding frame section, and the switch 403 transmits the user data output from the mobile phone 10 to the display unit 30. Accordingly, as shown in FIG. 3, the second set time interval t2 is enabled so that the display unit 30 displays the user data in the second and third display areas 33 and 35.

When the second set time interval t2 is enabled as described above, the switch controller 401 decreases the count value of the counter. In this case, when the count value of the counter reaches the set value (expired count), the switch control unit 401 detects this in step 219, and controls the switch 403 in step 221 to select the output of the camera 20. Therefore, the switch control unit 401 blocks the user data output of the mobile phone 10 and connects the output of the camera 20 to the display unit 30 when the first set time period t1 is set. Then, the display unit 30 displays the image data output from the camera 20 on the first display area 31. At this time, the switch control unit 401 performs the steps 211 and 223 to control the switch 403 until the next vertical synchronization signal is generated so that the output of the camera 20 can be transmitted to the display unit 30.

As described above, the selector 40 selects and outputs the image data of the camera 20 to the display unit 30 during the first set time section t1 set in units of frame sections by the vertical synchronization signal, and the mobile phone 10 during the set second set time section t2. User data is output to the display unit 30. In FIG. 4, the user data is transmitted during the second set time interval t2 set after the vertical synchronization signal is generated. However, the camera 20 is first generated during the first set time interval t1 after the vertical synchronization signal is generated. The video data may be output and then user data may be selected and output during the second preset time period t2.

5 is a flowchart illustrating a procedure of outputting user data in the mobile phone 10. Referring to FIG. 5, the controller of the mobile phone 10 enables the interrupt in step 251, and checks whether the CPU attempts to transmit user data in step 253. If there is no attempt to transmit user data, the system continuously checks whether there is an attempt to transmit user data. If there is an attempt to transmit user data, the user data is actually output (UI_ACCESSABLE = true) or the screen buffer is transmitted in step 255. (UI_ACCESSABLE = false) is determined. At this time, the UI_ACCESSABLE flag is used to determine whether to actually output the user data. This flag recognizes that the CPU can output the screen when an interrupt signal is generated in the switch controller 401, and sets the UI_ACCESSABLE flag to true. If the user data is not accessed at step 255 (UI_ACCESSABLE = false), at step 257, the user data is stored in the screen buffer. In addition, if the user data is accessed in step 255 (UI_ACCESSABLE = true), the user data of the screen buffer is output in step 259. In step 261, the user data of the access data is registered and returned. That is, when an interrupt is generated, the controller of the cellular phone 10 makes the user data accessible (UI_accessable = true). When the user data access is possible, the mobile phone 10 accesses and outputs the user data stored in the screen buffer, and then makes the user data inaccessible (UI_accessable = false). When the user data becomes inaccessible, the controller of the mobile phone 10 stores all user data to be newly displayed on the screen in the screen buffer so that it can be output again in the next frame section.

Therefore, the control unit of the mobile phone 10 includes a screen buffer for storing user data, and when the interrupt is generated, the control unit 10 changes the screen buffer to an accessible state and accesses and outputs user data stored in the screen buffer. . Thereafter, the controller changes the screen buffer to an inaccessible state and stores user data of a next frame in the screen buffer.

FIG. 6 is a diagram illustrating a configuration of an apparatus for transmitting image data and user data from the display unit 30 in the mobile phone 10 according to the second embodiment of the present invention.

Referring to FIG. 6, the image data photographed by the camera 20 and the user data generated by the mobile phone 10 are applied to the selector 40, respectively. The selector 40 includes a switch control unit 401, a switch 403, and an interrupt processing unit 405 as shown in FIG. 6, and time-switched switching the image data and the user data at a time length set in a synchronization section, respectively, and transmits them to the display unit 30. .

Referring to the operation of the selector 40 according to the second embodiment, first, image data photographed by the camera 20 is applied to the switch 403, and user data generated by the mobile phone 10 is also applied to the switch 403. The switch controller 401 controls the switch 403 based on a synchronization signal output from the camera 20 to transmit image data captured by the camera 20 or user data generated by the mobile phone 10 to the display unit 30.

After photographing the screen, the camera 20 transmits the captured image data to the display unit 30. In addition, the switch control unit 401 generates a switching control signal as shown in FIG. 3 by the vertical synchronization signal Vsync output from the camera 20, and the switch 403 is switched by the switching control signal so that the first terminal I1 and the second terminal. The data applied to I2 is switched to the display unit 30.

Referring to the switching control signal of FIG. 3, as described above, section D represents a time at which the vertical synchronization signal is generated, section t1 represents a time for transmitting image data captured by the camera 20 to the display unit 30, and section t2. Denotes a time for transmitting user data generated in the cellular phone 10. Accordingly, when the vertical synchronization signal Vsync is generated, the switch controller 401 generates a switching control signal as shown in FIG. 3, and the switch 403 is switched by the switching control signal and is input to the first terminal for t1 time. The output of 20 is connected to the display unit 30, and the output of the mobile phone 10 input to the second terminal for t2 hours is connected to the display unit 30.

In addition, as shown in FIG. 3, the switch controller 401 generates an interrupt signal to the interrupt processor 405 at the time when the vertical synchronization signal is generated. The controller of the portable telephone 10 outputs user data to the second terminal of the switch 403 as described above. In the second embodiment of the present invention, the mobile phone controller 10 outputs user data only when updating the user data, and otherwise does not output user data. That is, the mobile phone controller 10 outputting the user data performs a sleep mode when the user data is not updated. To this end, the mobile phone controller 10 notifies the interrupt processor 405 only when updating the user data. In this case, when the user data is updated, a change of the first user data (for example, battery level display information, a current time, a reception sensitivity, etc.) occurs or a second user data (control of an image screen displayed by the user) is changed. May be a case where a change request of a menu is generated. When the change notification of the user data is generated as described above, the interrupt processor 405 performs a process mode to output the interrupt signal to the cellular phone controller 10. In addition, when the change notification of the user data is not generated in the mobile phone controller 10, the interrupt processor 405 performs a bypass mode. In this case, the interrupt signal generated from the switch controller 401 is applied to the mobile phone controller 10. I never do that.

As described above, in the second embodiment of the present application, when transmitting user data to the display unit 30, the interrupt processing unit 405 activates the user data output operation of the mobile phone control unit 10 in a frame section where the user data is changed in the mobile phone control unit 10. The display of the user data is updated, and in the frame period where the user data is not changed, the user data output operation of the mobile phone controller 10 is deactivated to reduce the load of the mobile phone controller 10.

The interrupt processing unit 405 may be configured as a switch. In this case, the first output terminal of the interrupt processor 405 may be connected to the mobile phone controller 10 and the second output terminal may be connected to the switch controller 401. The user data change notification signal output from the mobile phone controller 10 may be used as a switch control signal. . The interrupt processor 405 is switched to the first output terminal when the user data change notification signal is generated, and applies the interrupt signal output from the switch controller 401 to the mobile phone controller 10. If the user data change notification signal is not generated, the second output terminal is switched to output the interrupt signal to the switch controller 401. Then, the switch control unit 401 controls the switch 403 not to be connected to the second terminal I2. In this case, the switch 403 may be connected to the first terminal as it is. In addition, the switch controller 401 may generate a normal switching control signal as shown in FIG. 3. At this time, if the data is not received at the first terminal I1 and the second terminal I2, the display unit 30 displays the data of the previous frame as it is. That is, the display unit 30 maintains the display of the image data and the user data displayed in the previous frame when no image data is received from the first terminal or no user data is received from the second terminal I2.

7 is a flowchart showing an operation procedure of the interrupt processing unit 405.

First, in step 711, the interrupt processor 405 confirms whether the change notification signal of the user data is generated in the cellular phone controller 10. FIG. At this time, when the notification signal for updating the user data is generated in the mobile phone controller 10, the interrupt processing unit 405 performs steps 713 to 717. In the above steps, the state of the interrupt processor 415 is set to the processing mode, and the mobile phone controller 10 performs an operation for updating user data, so that a passage through which the interrupt signal can be transmitted to the mobile phone controller 10 is formed. . Thereafter, when the interrupt signal is generated, the interrupt processor 415 transmits the interrupt signal to the cellular phone controller 10, and the cellular phone controller 10 outputs the updated user data to the second terminal I2 by the interrupt signal. do. Therefore, when the user data of the mobile phone controller 10 is updated, the updated user data is output to the display unit 30 in the t2 section.

However, if a notification signal for updating, ie, changing, user data is not generated in step 711, the interrupt processor 405 performs steps 721 and 723. In the above steps, the interrupt processor 415 is set to the bypass mode and the interrupt signal is not transmitted to the cellular phone controller 10. Accordingly, even when the interrupt signal is generated, the interrupt processor 415 does not apply the interrupt signal to the cellular phone controller 10, and thus the cellular phone controller 10 enters a sleep mode.

8 is a diagram illustrating a configuration of an apparatus for transmitting image data and user data from the display unit 30 in the mobile phone 10 according to the third embodiment of the present invention.

Referring to FIG. 8, image data photographed by the camera 20 and user data generated by the mobile phone 10 are applied to the selector 40, respectively. As shown in FIG. 8, the selector 40 includes a switch control unit 401, a switch 403, a buffer processing unit 407, and a user data buffer 409. Transfer to display unit 30.

Referring to the operation of the selector 40 according to the third embodiment, first, image data photographed by the camera 20 is applied to the switch 403, and user data generated by the mobile phone 10 is also applied to the switch 403. The switch controller 401 controls the switch 403 based on a synchronization signal output from the camera 20 to transmit image data captured by the camera 20 or user data generated by the mobile phone 10 to the display unit 30.

After photographing the screen, the camera 20 transmits the captured image data to the display unit 30. In addition, the switch control unit 401 generates a switching control signal as shown in FIG. 3 by the vertical synchronization signal Vsync output from the camera 20, and the switch 403 is switched by the switching control signal so that the first terminal I1 and the second terminal. The data applied to I2 is switched to the display unit 30.

Referring to the switching control signal of FIG. 3, as described above, section D represents a time at which the vertical synchronization signal is generated, section t1 represents a time for transmitting image data captured by the camera 20 to the display unit 30, and section t2. Denotes a time for transmitting user data generated in the cellular phone 10. Accordingly, when the vertical synchronization signal Vsync is generated, the switch controller 401 generates a switching control signal as shown in FIG. 3, and the switch 403 is switched by the switching control signal and is input to the first terminal for t1 time. The output of 20 is connected to the display unit 30, and the output of the mobile phone 10 input to the second terminal for t2 hours is connected to the display unit 30.

In addition, as shown in FIG. 3, the switch controller 401 generates an interrupt signal to the buffer processor 407 at the time when the vertical synchronization signal Vsync is generated. The controller of the portable telephone 10 stores user data in the user data buffer 409. Data stored in the user data buffer 409 is read by the buffer processor 407 and output to the second terminal I2 of the switch 402. In the third embodiment of the present invention, the cellular phone controller 10 stores the user data in the user data buffer 409 when updating the user data, and otherwise does not operate. Therefore, it can be seen that the user data to be updated is stored in the user data buffer 409. The user data buffer 409 may use dual port memory. The user data buffer 409 stores an area for storing first user data (for example, battery level indication information, current time, reception sensitivity, etc.) and second user data (menu change for controlling a displayed video screen). Are allocated.

The buffer processor 407 is driven when an interrupt signal is generated by the switch controller 401, and accesses the user data stored in the user data buffer 409 to output to the second terminal I2. The buffer processor 407 may be configured as a counter. That is, the counter executes a count enable mode when the switching control unit 401 generates an interrupt signal, starts a count in the operation mode, and applies the count signal to the address signal of the user data buffer 409. In this case, the count value should be able to address the area storing the first and second user data of the user data buffer 409, and may be designed to terminate the count operation when the count is completed. At this time, the count operation can be terminated in the t2.

Therefore, when the switch control unit 401 generates the switch control signal as shown in FIG. 3, the switch 403 transmits the image data output from the camera 20 to the display unit 30 during the t1. The display unit 30 then displays the received image data on the display area 31. When the change of the first user data or the second user data occurs, the mobile phone controller 10 sets the user data buffer 409 to a write mode and sets the changed user data to the corresponding area of the user data buffer 409. Store in Thereafter, when the camera 20 outputs one frame of image data and generates a vertical synchronization signal Vsync, the switch controller 401 generates a switch control signal as shown in FIG. 3. Then, the buffer processor 407 is operated to operate the user data buffer 409 in read mode and generate an address signal. Then, the user data buffer 409 accesses and outputs user data in an area corresponding to the addressing of the buffer processing unit 407, and the switch 403 outputs user data output from the user data buffer 409 to the display unit 30. The display unit 30 then displays the received first and second user data in corresponding display areas 33 and 35, respectively.

9 is a diagram showing the configuration of an image processing apparatus according to an embodiment of the present invention, which may be a configuration of a mobile phone.

Referring to FIG. 9, the RF unit 121 performs communication of a mobile phone. The RF unit 121 includes an RF transmitter for upconverting and amplifying a frequency of a transmitted signal, and an RF receiver for low noise amplifying and downconverting a received signal. The data processor 123 includes a transmitter for encoding and modulating the transmitted signal and a receiver for demodulating and decoding the received signal. That is, the data processor 123 may be configured of a modem and a codec CODDEC. The audio processor 125 reproduces the received audio signal output from the data processor 123 or transmits a transmission audio signal generated from the microphone to the data processor 123.

The keypad 127 includes keys for inputting numeric and text information and function keys for setting various functions. In addition, the keypad 127 may include a mode setting key and a shooting key for performing a shooting and displaying function to display the image data captured by the camera 20. The memory 129 may be composed of a program memory and a data memory. The program memory may store programs for controlling a general operation of a mobile phone and programs for controlling a path of an image signal applied to a display unit according to an exemplary embodiment of the present invention. In addition, the data memory temporarily stores data generated during the execution of the programs. The memory 129 may include a screen buffer for storing the user data.

The controller 110 controls the overall operation of the mobile phone 10. In addition, the controller 110 may include the data processor 123. In addition, the controller 110 controls the procedure of FIG. 5 to display user data for display in the second display area 33 and the third display area 35 of the display unit 30 according to an exemplary embodiment of the present invention. In addition, the controller 110 sets the photographing mode by controlling the signal processor 25 when the mode setting is changed from the keypad 127 so as to display the image data of the camera 20, and controls to display the photographed image data according to the set photographing mode.

The camera 20 photographs image data and includes a camera sensor that converts the photographed optical signal into an electrical signal. It is assumed here that the camera sensor is a CCD sensor. The signal processor 25 converts the video signal output from the camera 20 into an image signal. The signal processor 25 may be implemented by a digital signal processor (DSP). The image processor 60 performs a function of generating screen data for displaying an image signal output from the signal processor 25. The image processor 60 scales and outputs an image signal photographed by the camera 20 according to the standard of the display unit 30, and compresses and decompresses image data photographed by the camera 20.

The selector 40 inputs the image data output from the image processor 60 and the user data output from the controller 110, and selects the image data and the user data by the synchronization signal output from the camera 20 and outputs them to the display unit 30. Here, the synchronization signal may be a vertical synchronization signal, which is a frame synchronization signal. In this case, the selector 40 may have the configuration as shown in FIG. 2, and outputs the image data of the camera 20 in a first section t1 set in units of frame sections as shown in FIG. 3, and the user of the controller 110 in a second section t2. Selective output of the data.

The display unit 30 includes a first display area 31 for displaying image data output from the camera 20 and second and third display areas 33 and 35 for displaying first and second user data output from the controller 110. Accordingly, the display unit 30 displays the image signal output from the image processor 60 in the first display area 31 and displays the first and second user data output from the controller 110 in the second and third display areas 33 and 35, respectively. Display. In this case, the display unit 30 may use an LCD. In this case, the display unit 30 may include an LCD controller, a memory capable of storing image data, and an LCD display device. Herein, when the LCD is implemented in a touch screen manner, the keypad 127 and the LCD may be input units.

Referring to FIG. 9, when the user sets a dialing mode after dialing through the keypad 127, the controller 110 detects this and dials the received information through the data processor 123. After processing the RF signal through the RF unit 121 and outputs. Thereafter, when the counter subscriber generates a response signal, the counter subscriber detects it through the RF unit 121 and the data processor 123. Thereafter, a user establishes a voice call path through the audio processor 125 to perform a communication function. In the incoming mode, the controller 110 detects the incoming mode through the data processor 123 and generates a ring signal through the audio processor 125. Thereafter, when the user responds, the controller 110 detects this, and a voice call path is formed through the audio processor 125 to perform a communication function. In the outgoing and incoming modes, voice communication is described as an example, but a data communication function for communicating packet data and video data may be performed in addition to the voice communication. In addition, when performing a standby mode or text communication, the controller 110 displays text data processed by the data processor 123 on the display unit 30.

In addition, the mobile phone may perform an operation of capturing a person or an environment and displaying or transmitting the image on a video screen. First, the camera 20 may be mounted on the mobile phone 10 or connected to a predetermined location outside. That is, the camera 20 may be an external camera or an internal camera. The camera 20 may use a charge coupled device (CCD) sensor. The image captured by the camera 20 is converted into an electrical signal by an internal CCD sensor and then applied to the signal processor 25. Then, the signal processor 25 converts the image signal into digital image data and outputs the image signal to the image processor 60.

Then, the image processing unit 60 scales and outputs the received image data to fit the size of the first display area 31 of the display unit 30, and compresses the image data of the photographed screen and outputs it to the controller 110 when a photographing command is generated. do.

The selector 40 selects the outputs of the image processor 60 and the controller 110 and outputs them to the display unit 30 according to the vertical synchronization signal (frame synchronization signal) output from the camera 20.

FIG. 10 is a diagram showing the configuration of the first embodiment for transmitting display data output from the image processing unit 60 and the control unit 110 to the display unit 30. As shown in FIG.

The image processing unit 60 functions to compress and decompress an image signal input from the camera 20 into a JPEG format while simultaneously interfacing the image signal between the signal processing unit 25 and the display unit 30. In addition to the above functions, the image processor 60 may further include functions for editing a video screen to generate or display a thumbnail picture.

Referring to FIG. 10, a camera interface (hereinafter referred to as a CCD interface) 611 performs an interface between image data (YUV format) and synchronization signals HREF and VREF output from the signal processor 25. The HREF is a horizontal validity period flag, which is used as a line synchronization signal. The HREF may be the signal processor 25 horizontal synchronization signal. The VREF is generated as a vertical validity period flag in units of one frame and may be a vertical synchronization signal. The scaler 613 scales and outputs the size of the image data photographed by the camera 20 to be the size of the first display area of the display unit 30. The converter 615 converts the image data of the YUV format into image data of the RGB format. The display interface 617 performs an interface function with the display unit 30 and may include a buffer for storing image data having a frame size. The image codec 619 performs a function of JPEG-compressing the image data output from the signal processor 25 to output the encoded data to the controller 110 or to JPEG-extend the encoded data input from the controller 110.

Here, it is assumed that the size of the image data photographed by the camera 20 is the size of the CIF (352 × 288), and the size of the first display area 31 of the display unit 30 is 128 × 112 or 128 × 96.

Referring to the operation of the image processor 60, the CCD interface 611 performs a function of interfacing the image data output from the signal processor 25. In this case, the image data is fixed to a CIF (352 × 288) size as the YUV format. The scaler 613 scales the image signal photographed by the camera 20 on the display unit 30 according to the control signal output from the controller 110 according to the exemplary embodiment of the present invention. That is, as described above, the number of pixels of the video signal generated by the camera 20 is CIF size (352 × 288), and the number of pixels of the video signal which can be displayed on the display unit 30 is 128 × 112 or 128 × 96. Accordingly, the scaler 613 reduces and crops the image signal pixels output from the camera 20 to the number of pixels of the image signal that can be displayed on the display unit 30. In addition, the scaler 613 may enlarge and display an image signal output from the camera 20 under the control of the controller 110. The enlarged display method may be selected by displaying the number of pixels that can be displayed on the display unit 30 from the image signal output from the camera 20. The converter 615 converts the YUV data output from the scaler 613 into RGB and outputs the converted RGB. The LCD interface 617 interfaces the image data on the display unit 30, and the frame buffer performs the function of buffering the image data interfaced with the display unit 30 on the LCD interface 617.

The operation of transmitting the image data output from the image processor 60 and the user data output from the controller 110 will be described.

When the vertical synchronization signal is generated, the switch control unit 401 generates a switch control signal as shown in FIG. 3 by performing the procedure of FIG. 4. Then, in the first period t1 of the frame period, the switch controller 401 controls the switch 403 to select the output of the display interface 617. The display interface 617 accesses the image data stored in the frame buffer in the first section t1 of the switch control unit 401 and outputs the image data to the switch 403. Then, the display unit 30 displays the image data output from the display interface 617 on the first display area 31. After that, when the second section t2 is reached, the switch controller 401 generates an interrupt signal to the controller 110. Then, the control unit 110 accesses and outputs user data stored in the screen buffer while performing the procedure of FIG. 5. In this case, since the switch controller 401 selects the output of the controller 110 by controlling the switch 403, the switch 403 outputs the first and second user data output from the controller 110 to the display unit 30. The display unit 30 then displays the first user data on the second display area 33 and outputs the second user data on the third display area 35.

FIG. 11 is a diagram showing in detail a configuration for selecting display data of a camera and a mobile phone according to the second embodiment of the present invention in FIG.

Referring to FIG. 11, the selector 40 has the configuration as shown in FIG. 6, and operations of the rest of the configuration except for the operation of the selector 40 are the same as those of FIG. 10.

FIG. 12 is a diagram showing in detail the configuration of selecting display data of a camera and a cellular phone according to the third embodiment of the present invention in FIG.

Referring to FIG. 12, the selector 40 has the configuration as shown in FIG. 8, and operations of the rest of the configuration except for the operation of the selector 40 are the same as those of FIG. 10.

As described above, in the mobile phone having a camera, the image data photographed by the camera and the user data generated in the mobile phone can be transmitted to the display unit in a set section unit, thereby efficiently displaying the user data and the image data in the mobile phone. There is an advantage to this.

Claims (16)

In the data display device of a mobile phone, A camera which outputs the image data for displaying the screen and the synchronization signal; The mobile phone control unit for generating user data of the mobile phone, A selector for time-dividing the frame image data section by the synchronization signal generated by the camera to select the image data in the first section and to select and output the user data in the second section; And a display unit for displaying the image data and the user data output from the selector. The method of claim 1, And said synchronizing signal is a vertical synchronizing signal. The method of claim 2, wherein the selector, When the vertical synchronization signal is generated, the frame image data section is time-divided to generate a first section for outputting the image data and a second section signal for outputting the user data, and at the time of generating the second section signal, the mobile phone A switch controller for generating an interrupt signal for enabling user data output to And a switch for switching the output of the camera in the first section of the switch controller and switching the output of the mobile phone in the second section to output the display to the display unit. 4. The data display apparatus of claim 3, wherein the user data is second user data representing a display menu of first user data and video data indicating a state of the mobile telephone. The method of claim 4, wherein the display unit, A first display area displaying the image data, a second display area positioned above the first display area displaying the first user data, and a lower display area positioned below the first display area. And a third display area for displaying user data. In the data display method of a mobile telephone having a video for display screen image and a camera for outputting a synchronization signal, generating a user data of the mobile telephone, Generating a first interval signal and a second interval signal by time-dividing the frame data section when the camera outputs the synchronization signal; Selecting and displaying image data output from the camera when the first interval signal is generated; And selecting user data output from the mobile phone and displaying the user data on the display unit when the second section signal is generated. The method of claim 6, And the synchronization signal is a vertical synchronization signal. 8. The method of claim 7, wherein the user data is a second user data indicating a display menu of first user data and video data indicating a state of the mobile telephone. In the data display device of a mobile phone, A camera which outputs the image data for displaying the screen and the synchronization signal; A control unit of the mobile phone which outputs a notification signal when updating user data, outputs the user data when an interrupt signal is generated, and maintains previous user data when the interrupt signal is not generated; A switch controller for time-dividing the frame image data section by the synchronization signal generated by the camera to generate a control signal for selecting the image data in the first section and selecting user data in the second section; When the user data is updated in the mobile phone, a processing mode is generated, and when the second section control signal is generated, an interrupt signal is generated in the mobile phone. When the user data is not updated, the mobile phone enters a bypass mode and does not apply the interrupt signal to the mobile phone. Interrupt processing unit, A switch for selecting and outputting the output of the camera when the first section signal is generated by the switch controller and selecting and outputting the output of the mobile phone when the second section signal is generated; And a display unit for displaying image data and user data output from the switch in a corresponding display area. The method of claim 9, And said synchronizing signal is a vertical synchronizing signal. 11. The data display apparatus of claim 10, wherein the user data is second user data indicating a display menu of first user data and video data indicating a state of the mobile telephone. The method of claim 11, wherein the display unit, A first display area displaying the image data, a second display area positioned above the first display area displaying the first user data, and a lower display area positioned below the first display area. And a third display area for displaying user data. In the data display device of a mobile phone, A camera which outputs the image data for displaying the screen and the synchronization signal; A control unit of the mobile telephone which outputs the user data to a buffer when updating the user data, and maintains the previous user data if the user data is not updated; The buffer for storing user data output from the controller of the cellular phone; A switch controller for time-dividing the frame image data section by the synchronization signal generated by the camera to generate a control signal for selecting the image data in the first section and selecting user data in the second section; A buffer processor for outputting user data stored in the buffer when the second section signal is generated; A switch for selecting and outputting the output of the camera when the first section signal is generated by the switch controller and selecting and outputting the output of the buffer when the second section signal is generated; And a display unit for displaying image data and user data output from the switch in a corresponding display area. The method of claim 13, And said synchronizing signal is a vertical synchronizing signal. 15. The data display apparatus of claim 14, wherein the user data is second user data indicating a display menu of first user data and video data indicating a state of the mobile telephone. The method of claim 15, wherein the display unit, A first display area displaying the image data, a second display area positioned above the first display area displaying the first user data, and a lower display area positioned below the first display area. And a third display area for displaying user data.

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