CN101369820A - Video and audio communication acquisition module - Google Patents

Abstract

The communication device of the audio-visual co-construction system of the present invention includes: a control unit; an audio-visual communication co-construction module for receiving or transmitting wireless audio-visual signals of a complex communication protocol; at least one processor electrically connected to the complex audio-visual communication module for processing the wireless signals of the complex audio-visual communication protocol; and an input/output unit electrically connected to a digital-to-analog converter.

Description

Audio-visual communication capture module

technical field

The present invention relates to an external or built-in capture module, in particular to a microwave audio-visual communication capture module.

Background technique

With the continuous expansion of the information and computer market, electronic products have grown rapidly driven by the trend of thin, light, small, multi-functional and fast. Based on the advent of the high-tech era, telecommunication networks and the Internet are emerging industries in recent years, and the communication system is also accompanied by the development of mobile phone integration technology to provide users with more convenient ways to obtain information. Therefore, communication technology has also become a new darling by leaps and bounds, and businesses attached to communication devices are also flourishing due to the convenience of contact requirements and information acquisition. Whether it is the Internet, mobile communication devices, or personal digital assistants, the entire living space has been filled, and network and communication companies are also innovating to provide business services to help customers transmit or obtain their data to expand the scope of markets and services. In terms of electronic components, it is developing toward multi-functionality, such as the trend of light, thin, small, multi-functional and fast, and communication service providers or information providers must also provide diverse, comprehensive and up-to-date information to customers.

The signal received by the two-way communication module passes through the microprocessor and loads the data or program stored in the memory unit for processing, such as comparing the communication protocol, interpreting and judging. The received information can be displayed by the display device. Based on the fact that traditional voice communication does not meet the requirements, and different communication network service providers provide different communication protocols, the present invention is proposed based on the above considerations.

Contents of the invention

The main purpose of the present invention is to provide a microwave video and audio capture module or a wireless communication device with it, so as to facilitate remote video and video capture. The present invention is also beneficial for multi-party cross-platform, hand-held, fixed-point, mobile audio-visual communication or capture, such as video conference or remote capture.

The communication device of the audio-visual co-configuration system of the present invention includes: a control unit; an input unit electrically connected to the control unit to facilitate the user to input instructions or data; an audio-visual communication co-construction module for receiving or transmitting wireless audio-visual communication protocol signal; at least one processor, electrically connected to the complex audio-visual communication module, for processing complex audio-visual communication protocol wireless signals; a digital-to-analog converter, electrically coupled to the processor, for processing conversion between digital signals and analog signals; The I/O unit is electrically connected to the above-mentioned digital-to-analog converter. The audio-visual communication protocol includes that the first audio-visual communication module is selected from W-CDMA, CDMA2000, CDMA2001, TD-CDMA, TD-SCDMA, UWC-136, DECT, and 4G; the second audio-visual communication module is selected from WiFi, WiMax, and 802.11.

Description of drawings

The preferred embodiment of the present invention will be described in more detail with the help of the following figures in the explanatory text below:

FIG. 1 is a functional block diagram of a wireless communication device in an audio-visual communication co-construction system.

FIG. 2 is a diagram of an audio-visual telephone communication network and a local area network (LAN).

Fig. 3 is a functional block diagram of the present invention.

Figure 4 is a diagram of an external microwave access module.

Fig. 5 is a functional block diagram of the present invention.

In the picture:

100 control units

102 switching unit

104 signal analysis unit

106 image segmentation unit

100A The first audio-visual communication module

100B wireless communication module

100C Second audio-visual communication module

105 memory cells

110 user interface

115 display device

120 antenna system

145 baseband processing system

150 speech codecs

155 voice changer

160 microphone

165 speakers

170 input unit

185 Standby setting unit

300 multitaskers

310 image processing unit

400 handhelds

410 interface

420 processing unit

430 microwave access module

440 Subscriber Identification Module

450 interface

460 antenna

500 microwave access module

Detailed ways

The present invention is applicable to wireless communication devices, including but not limited to mobile phones, personal digital assistants, smart phones, satellite positioning systems, notebook computers and the like. In general wireless communication systems, communication network service providers in different systems or regions adopt different communication protocols or two-way pager communication protocols. Therefore, the signals transmitted by each system service provider include different signaling protocols. Based on the above considerations, a communication device and a signal transmission and reception method for an audio-visual communication co-construction system are proposed. For users who adopt the audio-visual communication protocol, they may not always hope to be seen by the other party when communicating, and those who do not use the audio-visual protocol cannot perform image transmission. Therefore, the present invention proposes a co-constructed system that enables users to select appropriate protocols for communication on appropriate occasions. Moreover, the mobile audio-visual communication rate is higher, and the non-mobile type is more economical, but it cannot be used for mobile audio-visual communication. Based on the needs of the above-mentioned different situations, the present invention was born.

Referring to FIG. 1 , it is a functional block diagram of a wireless communication device including an audio-visual communication co-construction system. For the convenience of description, the co-construction system of the first communication module and the second communication module is used for an explanation, but it is not used to limit the present invention. In other words, the present invention can be modified to facilitate the use of modules of other different communication systems or protocols for implementation. , but all are included under the spirit of the present invention. For example, a system-on-a-chip may be used to integrate the chips or processors described below. The wireless audio-visual communication co-construction device includes a control unit 100, such as a central processing unit, which is used to process and control instructions and data, data processing and calculation of the device. The memory unit 105 is coupled to the control unit 100 . The memory unit 105 of the wireless communication device can be divided into three parts, which are read only memory (ROM), non-volatile memory such as flash memory (FLASH) and random access memory (RAM). Generally, unchanging data can be stored in read-only memory (ROM), and system operating software or fixed applications can generally be stored in non-volatile memory and can retain its internal data without power supply. Reading or writing can be repeated while power is on. Random access memory (RAM) is used to store the data downloaded by the system and the information obtained after processing, and then output the relevant information selected by the user to the display device to output the displayed status. The system programs and application programs stored in the non-volatile memory control the execution of all necessary functions, processed by the central processing unit or the control unit, and presented to the display device 115 through the user interface 110 . An input unit 170 is electrically connected to the control unit 100 to facilitate the user to input commands or data.

The antenna system 120 can be a multi-band antenna or composed of multiple antennas, depending on the requirement. It may be a dipole antenna, a planar antenna, an inverted-F antenna, a fractal antenna, and the like. The antenna system 120 is used to receive signals, and it is coupled to the first audio-visual communication module 100A suitable for mobile transmission of information. It generally includes: mixing the local oscillation signals through the receiver, and converting the signals into intermediate frequency signals IF (intermediate frequency). The transmitter converts the modulated signal to the frequency range preset by the protocol, and transmits it through the antenna system. The modulation and demodulation device (MODEM) is electrically coupled to the above-mentioned receiver and transmitter for modulating or demodulating signals (modulate orde-modulate). The above-mentioned protocol can adopt audio-visual wireless communication protocol, examples include but not limited to International Telecommunications Unit (ITU): 3G, 3.5G, 4G, W-CDMA, CDMA2000, CDMA2001, TD-CDMA/TD-SCDMA, UWC-136 , DECT. The baseband processor is coupled to the above-mentioned modulation and demodulation device, and it can process the signal of the preset bandwidth and the above-mentioned communication protocol.

The second audio-visual communication system is formed by the area wireless transmission module 100B and the network audio-visual communication unit 180 to facilitate audio-visual communication. It is suitable for low-speed or fixed-point transmission. In terms of better implementation, the module through which the second audio-visual communication is transmitted includes a broadband wireless local area network module (wideband local area network), which is coupled with the control unit to facilitate the use of wireless transmission through antenna transmission ( Receive/send) wireless signals to communicate with network hotspots or capture points. The transmission module 100B is exemplified to include WiFi, Worldwide Interoperability for Microwave Access (WiMax), 802.11x (a, b, g, n). A network audio-visual communication unit 180 is coupled to the above-mentioned control unit 100 for processing voice and data or data transmitted through the Internet. The above-mentioned second wireless audio-visual communication module (including the transceiver) can be connected to the Internet, so it is compatible with protocols such as WiFi, WiMax, 802.11x (a, b, g, n), UWB, etc. Through the processing of the network audio-visual communication unit 180, the user can use the Internet to transmit image data and voice at the same time, so as to perform network audio-visual communication. The above-mentioned network audio-visual communication unit 180 can be hardware, firmware or software structure. Generally, users need to turn on the computer and then download the files to the hard disk, and then transfer them to the handheld device. This procedure is very inconvenient, and it is very inconvenient to download the desired files, such as MP3, MP4, blog, etc., in areas without computers. With the wireless transmission module 100B, it is not necessary to download files through a computer, which can eliminate the inconvenience caused. Generally, the traditional mobile phone needs to download MP3 by turning on the computer, and then MP4 can be played. In the present invention, the wireless transmission module 100B is used to directly detect hotspots, connect to the network, and then use the command to hold the wireless module without computer downloading. When moving or when the signal is weak or no signal, after the analysis and judgment of the signal analysis unit 104, the switching unit 102 coupled to the control unit 100 can be used to switch to the first audio-visual communication module 100A to perform the required functions. The switching can be done manually or automatically by software. The above-mentioned signal analysis unit 104 can obtain signal parameters directly or indirectly. The signal analysis unit 104 is an independent circuit or an integrated circuit.

The above-mentioned first audio-visual communication module 100A can be coupled with the baseband processing system 145, the baseband processing system is an integrated chip or a plurality of independent baseband processors (as shown in A, C), and the length of the corresponding protocol The distance communication module is coupled to facilitate the processing of communication signals.

The third communication module 100C and the baseband processing system 145 are coupled to the modulation and demodulation device, which can process signals with a bandwidth of 1.9G and a communication protocol with lower power than the first communication module (such as personal handset protocol). In the same way, the wire is used to receive the signal, and the receiver mixes the local oscillating signal to degrade only the intermediate frequency. The transmitter (transmitter) converts the modulated signal into frequency and transmits it through the antenna. The modulation and demodulation device is connected to the above-mentioned receiver and transmitter to modulate the signal. Each of the audio-visual communication modules mentioned above can be electrically coupled to the control unit 100 mentioned above, which can be made by using integrated circuit technology, or can be integrated by using integrated circuit technology to integrate the above devices or adopt a system-on-a-chip architecture.

For the signals processed by the above-mentioned baseband processor, the control signal is sent to the control unit 100 for processing, and the voice signal is sent to the speech codec CODEC 150 for processing. Then, a voice converter 155 is electrically connected to the CODEC 150 to convert the digital signal into an analog signal, or vice versa. The microphone 160 and the speaker 165 are respectively electrically connected to the above-mentioned speech conversion (speech conversion) 155 . The SIM card connector is used to insert the SIM card into the system, through the SIM card connector, the SIM card can communicate with the control unit 100 and facilitate the control unit to obtain the data and passwords stored in the SIM card. In addition, in order to facilitate image transmission, the present invention may also include a digital image capture module 200 connected to the control unit 100 . The captured images are sent to the control unit 100 for processing. It may be a CMOS or CCD array. The wireless communication device includes a standby setting unit 185 electrically coupled to the control unit 100 for convenient operation. When the difference between the signals transmitted by two different communication network service providers exceeds a critical value, the wireless communication device will manually or automatically activate the communication system with a stronger signal to transmit signals through the standby setting unit 185 . For example, the signal analysis unit 104 compares the strength of the signal that the communication system service provider can receive at the user's location, and selects the communication system of the telecommunications network service provider with the stronger signal from the multiple communication systems as the communication system for transmitting the signal .

Antennas and corresponding radio-frequency related units can be configured in one or more groups. This design can configure at least two groups of different door numbers in one device. Since the two groups of door numbers may use different telecommunications network service providers, the wireless communication device includes a standby setting unit 185 electrically coupled to the control unit 100 to facilitate the operation of use. When the signal difference of a certain communication network exceeds a critical value, the wireless communication device activates the communication system with a stronger signal to transmit a signal by enabling the standby setting unit 185 . For example, the unit can compare the signal strengths that can be received by various communication system service providers at the user's location. Select the communication system of the telecommunications network service provider from the multiple communication systems as the communication system for transmitting signals. The present invention includes that the standby setting unit can use the program planted in the memory unit of the wireless communication device to facilitate setting the standby mode, which can be multi-mode standby or single-mode standby.

This embodiment can be applied to signal transmission of a wireless communication device including multiple communication systems. The wireless communication device includes a plurality of communication protocol modules and a handheld device provides two or more audio-visual systems coexisting. A communication service provider is a communication network service provider with different communication protocols. The information received by the two-way communication module and transmitted by the communication network service provider is converted into an identifiable signal through decoding by the decoding device. Utilize the microprocessor or central processing unit of the above-mentioned wireless communication device for processing. The communication device includes at least two different communication systems which can be in standby simultaneously or independently. When the user turns on the power of the communication device, it will search and scan the signal and strength of the network like a general communication device. The default communication network system can also be switched or multiple systems can be on standby at the same time. When the user makes a call, the built-in program of the wireless communication device will perform a judgment to confirm which communication system or network is used as the communication medium. The parameter for this judgment can be set to be based on the strength of the signal. When the signal of a certain communication network is stronger, the wireless communication device will activate the communication system with stronger signal to transmit the signal. The signal transmission method of a wireless communication device includes checking the relevant parameters of each communication system of the communication device; for example, the relevant parameters include signal strength, and comparing the signal strength that can be received by each communication system service provider at the user's location. Comparing the intensity of electromagnetic waves can also be used as a basis for judgment. According to the comparison of the preset conditions of the relevant parameters, a communication system is selected as the communication system for transmitting signals. For example, the default condition may be to select the one with the relatively stronger signal strength as the communication system for transmitting the signal, for example, it is suggested to compare among various communication network service providers, which one has the stronger signal strength in the user's locality. Select the communication system from the multiple communication systems as the communication system for transmitting signals. Then transmit the signal according to the selected communication system. The default condition is set to select the communication system with the lower calling fee. Therefore, the system parameter comparison unit 185 is electrically coupled to the control unit 100, which is an optional configuration function to facilitate the above-mentioned operations.

As mentioned above, the present invention can provide video and audio transmission communication across different platforms, and currently there is no device capable of cross-platform (protocol) video and audio transmission. In this way, audio-visual conferences can be carried out, or better audio-visual quality, signal, electromagnetic strength or rate can be selected according to parameter indicators to determine which platform to use for multi-party video transmission, which is beneficial to multi-platform video conferences. Please refer to FIG. 1 and FIG. 2, using the input complex image, use an image segmentation unit 106 to input the image to the divided multiple area, and the preset positive or negative value is used to adjust the image pixel of each pixel value. For image segmentation methods, please refer to US Patent No. 7,171,019, 7,142,689, patentee CanonKabushiki Kaisha (Tokyo, JP); US Patent No. 7,059,729, patentee Hitachi, Ltd. (Tokyo, JP). Using the image segmentation unit 106, the images transmitted by multiple parties can be simultaneously displayed on the same handheld device for the images of the multi-party call, which is beneficial to the multi-party handheld video conferencing. It should be noted that the division method mentioned above is only used to illustrate an implementation, not to limit the present invention. Referring to FIG. 3 , the input images can be selectively configured and processed by the multiplexer 300 , and then fed to the display device 115 after being processed by the image segmentation unit 106 . In one embodiment, the images are selectively passed through the image processing device 310 , and the image pixels or images are adjusted before being fed into the display device 115 . Images can be displayed without overlapping, overlapping display, or partially overlapping display. The control unit may be a microprocessor, a system chip, a digital signal processor or a combination thereof. It depends on the needs and cost.

Figure 2 includes two communication networks with different characteristics, including an audio-visual telephone communication network, and a local area network (LAN). The local area network is coupled to the Internet. A plurality of user terminal devices are connected to the above-mentioned audio-visual telephone communication network. Similarly, a plurality of user terminal devices are respectively connected to the above-mentioned Internet. In one embodiment, the computers (or notebook computers) 1, 2, 3 are wired to the Internet, and the computers can be connected to the Internet wirelessly through an access point. It must be noted that the number of user terminal devices is arbitrary. As shown in the figure, some devices are connected to the Internet. The above-mentioned computers can be replaced by the following but not limited to the following devices, such as personal digital assistants, notebook computers, mobile phones, etc., which must have the ability to connect to the Internet. In the embodiment, the user terminal equipment may be in different types of networks, and the two networks cannot directly exchange data, and a switching service mechanism is needed to bridge the two. In other words, this switching service mechanism enables two different types of networks to exchange data or links. Bridging systems are known technologies, such as long-distance switches, mobile switching centers, base station controllers, gateway devices, routing devices, etc., to exchange and transmit data. An access point is coupled to the Internet to provide the entrance of the wireless connection network, and other devices with similar functions can also use the above-mentioned access point, which is only an illustrative embodiment. Portable devices can transmit and receive information through the mobile phone service network or the Internet for multi-directional simultaneous audio and video communication, not just downloading information in one direction. The transmitted information or data includes a combination of digital data, image data (video), and voice signal (audio signal).

Referring to FIG. 4 , it shows an external microwave access module of the present invention, which includes a processing unit 420 , generally a chip (chip), electrically connected to a microwave access module 430 for wireless data transmission through microwaves. It can be connected with the handheld device 400 through an interface. The handheld device can perform remote wireless microwave access, Internet phone, and network connection through the external microwave access module. In one embodiment, a subscriber identification module 440 coupled to the processing unit 420 may be included to confirm the identity of the subscriber. It can be a built-in type or a plug-in type.

Based on this, the microwave access module can enable the user to perform wireless remote microwave access or carry out hand-held, wireless, and mobile network connections through an external connection. FIG. 5 shows that the embodiment of FIG. 4 is built into the handheld device. Some main components are similar to those in FIG. 1 , so some components are not shown. Wherein, the microwave access module 500 is arranged between the antenna and the control unit 100 to facilitate handheld microwave access. Please refer to the description of FIG. 1 for the same components, and will not repeat them here. The handheld device in FIG. 5 can be an independent microwave access device, mobile phone, notebook, satellite navigation device, media player, e-book, PDA, digital video camera, digital camera, etc. The mobile phone protocol (specification) can be GSM, CDMA, PHS, W-CDMA, 3G, 4G.

For example, commercially available processors can process and decode MPEG compressed files. If it has H.264 codec engine media player chip. For example, the processing chip is composed of four parts: CPU core, Media Engine, Graphics Processor and Virtual Mobile Engine (VME). The CPU core is based on the MIPS R4000 design, and has a floating-point processor (FPU) and a vector floating-point processor (VFPU), which can achieve a floating-point computing performance of more than 2.6GFlops per second; the media engine adopts the same CPU The R4000 has the same core, and has an independent 2MB embedded memory, which is used to assist the system in processing video and audio streams. Therefore, it has an embedded memory, which can programmatically control and change the data processing flow, so as to adapt to the vector processing unit including H.264 decompression, and sound effect processing, etc. The design of the data processing flow can be dynamically changed to improve the processing Unit utilization, streamlining chip design and reducing power consumption. The above must also be decoded or processed by software.

The units and modules mentioned above can be combined arbitrarily according to requirements. The present invention has been described above with preferred embodiments, and those who are familiar with the art in this field can make some changes and modifications without departing from the spirit of the present invention, and the scope of patent protection should be regarded as the appended patent scope and its scope of application. Depends on the equivalent field.

Claims (12)

1. an audio-visual communication is total to the structure device, it is characterized in that: described audio-visual communication structure device altogether comprises:

Control unit;

Input unit is electrically connected to this control unit and is beneficial to user's input instruction or data;

The audio-visual communication co-constituted module is in order to receive or to launch the wireless image-sound signal of at least two communications protocol;

At least one processor electrically connects this audio-visual communication co-constituted module, in order to handle multiple audio-visual communication agreement wireless signal;

Digital analog converter, this processor of electrical couplings is in order to handle the conversion between digital signal and analog signal;

Output/input unit is electrically connected to above-mentioned digital analog converter.

2. audio-visual communication according to claim 1 is the structure device altogether, it is characterized in that: wherein this audio-visual communication co-constituted module comprises relative high-speed mobile audio-visual communication module and is selected from W-CDMA, CDMA2000, CDMA2001, TD-CDMA, TD-SCDMA, UWC-136, DECT or 4G; Relatively low speed audio-visual communication module is selected from WiFi, WiMax, 802.11 or UWB.

3. audio-visual communication according to claim 1 is the structure device altogether, it is characterized in that: wherein this audio-visual communication co-constituted module comprises following any two combination W-CDMA, CDMA2000, CDMA2001, TD-CDMA, TD-SCDMA, UWC-136, DECT or 4G.

4. audio-visual communication according to claim 1 is the structure device altogether, it is characterized in that: wherein this audio-visual communication co-constituted module comprises following any two combination WiFi, WiMax, 802.11 or UWB.

5. a communication is total to the structure device, it is characterized in that: described communication structure device altogether comprises:

Control unit;

Input unit is electrically connected to this control unit and is beneficial to user's input instruction or data;

The audio-visual communication co-constituted module is in order to receive or to launch the wireless image-sound signal of at least two communications protocol;

At least one processor electrically connects audio-visual communication module again, in order to handle multiple audio-visual communication agreement wireless signal;

Digital analog converter, this processor of electrical couplings is in order to handle the conversion between digital signal and analog signal;

Output/input unit is electrically connected to above-mentioned digital analog converter;

Wherein the communication module that the structure communication module comprises relative high power be should be total to, following agreement W-CDMA, CDMA2000, CDMA2001, TD-CDMA, TD-SCDMA, UWC-136, DECT or 4G were selected from; And the communication module of relative low-power, be selected from the low-power communications protocol.

6. a communication is total to the structure device, it is characterized in that: described communication structure device altogether comprises:

Control unit;

Input unit is electrically connected to this control unit and is beneficial to user's input instruction or data;

Be total to the structure communication module, in order to receive or to launch the wireless image-sound signal of multiple communications protocol;

At least one processor electrically connects audio-visual communication module again, in order to handle multiple audio-visual communication agreement wireless signal;

Digital analog converter, this processor of electrical couplings is in order to handle the conversion between digital signal and analog signal;

Output/input unit is electrically connected to above-mentioned digital analog converter;

Wherein altogether structure communication module comprises: communication module is selected from following agreement WiFi, WiMax, 802.11 or UWB; And low-power communication module.

7. audio-visual communication device, it is characterized in that: described audio-visual communication device comprises:

Control unit;

Input unit is electrically connected to this control unit and is beneficial to user's input instruction or data;

The audio-visual communication module is in order to receive or emission wireless image-sound signal;

Processor electrically connects this audio-visual communication module, in order to handle audio-visual communication agreement wireless signal;

Digital analog converter, this processor of electrical couplings is in order to handle the conversion between digital signal and analog signal;

Display is in order to show image;

The image cutting unit, in order to the number image processing of feed-in to be shown in the number cut zone on this display.

8. audio-visual communication device according to claim 7 is characterized in that: wherein this audio-visual communication module comprises W-CDMA, CDMA2000, CDMA2001, TD-CDMA, TD-SCDMA, UWC-136, DECT, 4G, WiMax, 802.11 or UWB.

9. circumscribed microwave access module, it is characterized in that: described circumscribed microwave access module comprises:

Control unit;

The microwave access module is electrically connected to this control unit and is beneficial to the user and carries out the remote microwave access;

Interface, this control unit of electrical couplings is in order to carry out transfer of data with hand-hold device.

10. the hand-held device of a tool microwave access module, it is characterized in that: the hand-held device of described tool microwave access module comprises:

Control unit;

The microwave access module is electrically connected to this control unit and is beneficial to the user and carries out the remote microwave access;

User's interface, this control unit of electrical couplings is in order to input instruction; And display interface, this control unit of electrical couplings is in order to display message.

11. a media playing apparatus is characterized in that: described media playing apparatus comprises:

Control unit is used for handling and decoding digitized video or message archives;

The microwave access module is beneficial to the user and carries out the remote microwave access;

User's interface, this control unit of electrical couplings is in order to input instruction; And display unit, this control unit of electrical couplings is in order to display message.

12. media playing apparatus according to claim 11 is characterized in that: wherein this microwave access module comprises WiMax.

Images