KR0170152B1 - Improved download method of the remote controller - Google Patents

Abstract

The present invention relates to an improved download method of a remote controller, wherein when a user presses a download key provided in a keypad, an ID discrimination unit is driven and a ROM table stored in a ROM of the corresponding device is retrieved and a remote controller is controlled through a light emitting unit of the corresponding device. When the ROM table is received by the receiver and stored in the NV-RAM, and all ROM tables from the corresponding device are sent, the end signal is sent from the corresponding device, and the ROM table stored in the NV-RAM corresponds to the P / S converter, converter, and light emitting unit. It is sent back to the device. Next, the ROM table transmitted from the remote controller and the ROM table stored in the ROM are compared with each other, and if the two ROM tables match, a matching signal is transmitted. If the two ROM tables do not match, a mismatch signal is sent to the remote controller. After the NV-RAM is reset based on the inconsistency signal from the ROM device, the ROM table is downloaded again from the corresponding device, the matching table in the selection unit is set based on the matching signal from the corresponding device, and then the ID discrimination unit is stopped. Therefore, since the ROM table of another device that does not have a drive command stored in a plurality of ROMs can be accurately downloaded and stored in NV-RAM to perform a desired function of another device, an error that may occur when the ROM table is downloaded. It is to prevent the.

Description

Improved download method of the remote controller

1 is a schematic block diagram of a remote controller for performing an improved download method of the remote controller according to the present invention.

2 is a schematic block diagram of a device for transmitting a ROM table stored in a ROM based on an infrared signal for transmission from a remote controller as an example according to the present invention.

3 is a flowchart illustrating an operation of downloading a ROM table of a corresponding device according to a preferred embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

100: keypad 120230: ROM

123: NV-RAM 130,235: P / S converter

140,240 converter 150,245 light emitting unit

160,210: Receiver 170: ID discrimination unit

172, 215: decoder 174: selection unit

220: S / P conversion unit 225: control unit

The present invention relates to a remote controller widely used in A / V (AUDIO / VIDEO) devices and office equipment, hereinafter referred to as a remote controller, and more specifically, to a ROM of a corresponding device downloaded (DOWN-LOAD). The present invention relates to an improved download method of a remote controller that can be downloaded again when the table (ROM-TABLE) and the ROM table of the corresponding device are different.

Recently, with the development of the electronics industry, the spread of A / V equipment and office equipment has been rapidly spreading, and the number of remote controllers for remote control of each equipment is also rapidly increasing according to the spread of these various equipment. Is increasing. For example, a remote control for a television, a remote control for a microwave, a remote control for a personal computer, or the like is provided for each device in a home.

As described above, the provision of a remote controller for each device may not be desirable in terms of economics or manufacturing cost of the device, and confusion and inconvenience for the user due to the use of the remote control for each device. Therefore, these unnecessary waste elements and user's hassles must be solved in some form.

On the other hand, research on a remote controller capable of controlling each function of a plurality of devices is continuously conducted in the field of a user related to a remote controller, and as a part of this research, driving commands are stored in the remote controller. There is a way to download the ROM table from the ROM of another device and then perform the desired function.

However, in the conventional conventional method, the ROM table transmitted from the light emitting part of the device is transmitted from the device by an obstacle (for example, when an object or a person passes through the air transmission line) while being received by the light receiving part of the remote controller. If the data for the ROM table is lost, there is no guarantee that the function of the device will work properly afterwards.

Accordingly, the present invention is conceived based on the above-described point, and when the two ROM tables are different by comparing the ROM table downloaded from the device with the ROM table stored in the ROM of the device, the ROM of the device is different. The purpose is to provide an improved download method of the remote controller that can download the table again.

In order to achieve the above object, according to the present invention, when a download key signal is generated from a keypad based on an operation signal from the outside, a parallel driving command corresponding to the same is extracted from a ROM, converted into serial driving, and then converted into an infrared signal. A download method of a remote controller for transmitting to a device and downloading a ROM table drawn out from a ROM in the device and transmitted through a light emitting unit, wherein the download key signal is driven when a download key signal is generated from the keypad. A parallel driving command corresponding to the same is extracted from the ROM and converted into an infrared signal, and is then transmitted to the corresponding device, and from the ROM in the corresponding device based on the infrared signal transmitted from the remote controller. After withdrawing the ROM table of the device, A second step of transmitting the table of the corresponding device withdrawn from the ROM in the plane to the light receiving unit of the remote control; and downloading the ROM table transmitted from the corresponding device in the second step and storing the table in the NV-RAM in the remote control; A third step of checking whether an end signal is received from the corresponding device; and downloading the ROM table of the corresponding device until the end signal is sent from the corresponding device in the third step, and storing the ROM table of the corresponding device in the NV-RAM in the remote controller; And when the end signal is transmitted from the corresponding device, extracting a ROM table from the corresponding device stored in the NV-RAM and transmitting the ROM table to the light receiving unit of the corresponding device; and transmitting from the remote control within the other device. Comparing the two ROM tables with a ROM table stored in a ROM in the corresponding device. A fifth step of transmitting a matching signal to the remote controller if it is identical, and a mismatch signal to the remote controller if the two ROM tables are not the same; and resetting the NV-RAM when a mismatch signal is sent from the corresponding device. And a sixth step of downloading the ROM table stored in the ROM in the corresponding device again, setting the ROM table in the remote controller when the matching signal is transmitted from the corresponding device, and then stopping driving of the ID discriminating unit. Provides an improved download method for the controller.

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings by those skilled in the art.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic block diagram of a remote controller for performing an improved download method of a remote controller according to a preferred embodiment of the present invention. The keypad 100, the plurality of ROMs 120, and the NV-RAM 123 are shown in FIG. , A P / S conversion unit 130, a converter 140, a light emitting unit 150, a light receiving unit 160, and an ID determining unit 170.

In the drawing, the keypad 100 generates a function key signal corresponding to an external function, that is, a desired function key increases by a user's manual operation, and provides the corresponding function key signals to the plurality of ROMs 120 and the NV-RAM 123, respectively. In particular, when the download key for downloading the ROM table of the corresponding device is increased by manual operation of the user, the corresponding download key signal is transmitted to any one ROM among the plurality of ROMs (in the embodiment of the present invention, the first ROM ( 121).

The plurality of ROMs 121 and 122 respectively store driving commands for IDs of the plurality of devices, and the first ROM 121 of the plurality of ROMs 121 and 122 stores a driving command for performing an original function of the remote controller and a ROM table of the corresponding device. The driving command for downloading is stored, and the driving commands stored in the plurality of ROMs 120 and the NV-RAM 123 are typically stored in parallel.

On the other hand, the plurality of ROMs 121 and 122 extract driving commands corresponding to the function key signals from the keypad 110 and provide them to the P / S converter 130, respectively. Each driving command provided is provided to the P / S converter 130 after one driving command is selected based on the selection signal from the selecting unit 174 to be described later.

In addition, the NV-RAM 123 is a nonvolatile memory device that continuously stores memory contents unless a user presses an ERASE key provided in the keypad. The ROM table of the corresponding device received through the light receiving unit 160 is stored, and when a function key by a user's manual operation is pressed, a driving command of the corresponding device is retrieved and provided to the P / S conversion unit 130.

In addition, the P / S converter 130 may be extracted from the plurality of ROMs 121 and 122 and the NV-RAM 123 and may be selected from one ROM or NV-RMA 123 selected based on the selection signal of the selector 174. The parallel drive command is converted into a serial drive command, the converter 140 converts the serial drive command converted by the P / S conversion unit 120 into an infrared signal, and the light emitting unit 150 The infrared signal converted by the converter 140 is sent to a light receiving unit of a corresponding device to be driven, not shown.

Meanwhile, in FIG. 1, the light receiving unit 160 is, for example, as shown in FIG. 2, and an infrared signal, a ROM table, and an end signal for an ID of the corresponding device transmitted from the light emitting unit 245 of the corresponding device. It is received by the NV-RAM 123 and the ID conversion unit 170, respectively, the ROM table refers to the table that stores the drive command of the device, and the end signal is the end when all the ROM table of the device is sent. Infrared signal transmitted through the light emitting part of the device.

The ID determiner 170 includes a decoder 172 and a selector 174, and the decoder 172 corresponds to an infrared signal and a ROM table corresponding to the ID of the corresponding device received by the light receiver 160, respectively. Decoded by the ID for the device provided to the selection unit 174, the selection unit 174 stores a matching table in which the drive command stored in the plurality of ROM (121, 122) and ID of the plurality of devices respectively matched, At the same time, the ROM table of the corresponding device and the matching table matched with the ID of the corresponding device are stored.

In addition, when the end signal is input through the light receiving unit 160 of the remote controller, the selector 174 draws out the ROM table of the corresponding device stored in the NV-RAM 123 and generates a transmission signal for transmitting to the corresponding device. When a selection signal is input from the 100, a driving command corresponding to the selection signal from the keypad 100 among the plurality of ROMs 120 and the NV-RAM 123 using the matching table stored in the selection unit 174. Selection signals for selecting the stored memory devices 121, 122, and 123 are generated to the plurality of ROMs 121, 122 and the NV-RAM 123.

2 is a schematic block diagram of a device for transmitting a ROM table stored in a ROM based on an infrared signal for transmission from a remote controller, as an example according to the present invention. 215, an S / P converter 220, a controller 225, a ROM 230, a P / S converter 235, a converter 240, and a light emitter 245.

In FIG. 2, the light receiving unit 210, the decoder 215, the P / S converter 235, the converter 240, and the light emitter 245 are the P / S converter 130 in the remote controller as described above. Since the converter 140, the light emitting unit 150, the light receiving unit 160, and the decoder 172 perform substantially the same operation process, the description herein will be omitted to avoid overlapping descriptions.

Meanwhile, in FIG. 2, the S / P converter 220 converts the serial drive command decoded by the decoder 215, and the controller 225 from the remote controller via the S / P converter 220 is used. Generates a control signal for performing an operation corresponding to the driving command. In particular, when a driving command corresponding to the download is sent from the remote controller, the ROM table stored in the ROM 230 is extracted to the P / S conversion unit 235. If all of them are provided, the terminal generates a termination signal. In addition, the ROM 230 stores a ROM table of the corresponding device.

The operation of the improved download method of the remote controller of the present invention comprising the above-described members will be described in more detail with reference to FIGS. 1, 2, and 3.

First, when a user presses a download key provided in the keypad 100 to download a ROM table stored in a ROM of a device that is not stored in a plurality of ROMs in the remote controller (step 310), the corresponding download key signal. Is generated from the keypad 100, and a parallel driving command for download is drawn from the first ROM 121 and provided to the P / S converter 130.

At this time, the ID discrimination unit 170 is driven based on the download key signal generated from the keypad 100 (step 315), and a parallel driving command corresponding to the download key signal extracted from the first ROM 121 is generated. / S converter 130 is converted into a series of driving commands and converted to an infrared signal through the converter 140, and then sent to the light receiving unit 210 of the desired device through the light emitting unit 150 (step 320 ).

When an infrared signal corresponding to the download key signal is transmitted from the light emitting unit 150 of the remote controller, the infrared signal corresponding to the download key signal is received by the light receiving unit 210 of the corresponding device, decoded by the decoder 215, and then S / P conversion unit 220. Through the P / S conversion unit 235, the ROM table is converted into a parallel driving command, and the ROM table stored in the ROM 230 is extracted based on a control signal for withdrawal from the controller 225. ) Is converted into an infrared signal corresponding to the coverter 240, and then transmitted to the light receiving unit 160 of the remote controller through the light emitting unit 245.

Next, the ROM table of the corresponding device received through the light receiving unit 160 is stored in the NV-RAM 123 (steps 325 and 330), and at this time, until the end signal is sent from the light emitting unit 245 of the corresponding device. The ROM table is input to the decoder 172, and the ID of the corresponding device stored in the ROM table and the driving command of the corresponding device stored in the NV-RAM 123 are matched to match the matching table in the selector 174, respectively. do.

On the other hand, when all the ROM tables are withdrawn from the ROM 230 in the corresponding device, the terminal is outputted through the P / S converter 235, the converter 240, and the light emitter 245 based on the control signal of the controller 225. The signal is received by the light receiver 160 of the remote controller, and the selector 174 transmits the ROM table stored in the NV-RAM 123 back to the corresponding device based on the end signal received by the light receiver 160. The ROM table stored in the NV-RAM 123 generates a transmission signal, and is stored in the NV-RAM 123 based on the transmission signal from the selection unit 174. The P / S conversion unit 130, the converter 140, and the light emitting unit 150 are generated. It is sent to the light receiving unit 210 of the corresponding device (steps 335 and 340).

At this time, the controller 225 in the corresponding device compares the ROM table transmitted from the light emitting unit 150 of the remote controller with the ROM table stored in the ROM 230, and if the signal for the comparison result, that is, the two ROM tables match, When the two ROM tables do not match, the mismatch signal is transmitted to the remote controller through the P / S converter 235, the converter 240, and the light emitter 245.

On the other hand, when a mismatch signal is transmitted from the light emitting unit 245 of the corresponding device and received by the light receiving unit 150 of the remote controller, the selector 174 resets the NV-RAM 123 (steps 345 and 350). Returning to step 315, the above-described steps are repeated to download the ROM table sent from the device again.

On the other hand, when a matching signal is transmitted from the light emitting unit 245 of the corresponding device and received by the light receiving unit 150 of the remote controller, the selecting unit 174 sets the matching table in the selecting unit 174, that is, the NV-RAM 123. After matching the ROM table stored in the ID and the corresponding device ID (step 355), the ID discrimination unit 170 stops driving (step 360).

As described above, when the user presses the download key provided in the keypad 100, the ID discrimination unit 170 is driven and the ROM table stored in the ROM 230 of the corresponding device is extracted and the light emitting unit ( 245 is received by the light-receiving unit 160 of the remote controller and stored in the NV-RAM 123. When all ROM tables from the corresponding device are transmitted, an end signal from the corresponding device is transmitted and stored in the NV-RAM 123. The ROM table is sent back to the corresponding device through the P / S converter 130, the converter 140, and the light emitter 150. Next, the ROM table transmitted from the remote controller and the ROM table stored in the ROM 230 are compared with each other. When the two ROM tables match, the matching signal is matched. If the two ROM tables do not match, a mismatch signal is generated. It is transmitted to the remote controller, the NV-RAM 123 is reset based on the mismatch signal from the corresponding device, the ROM table is downloaded again from the corresponding device, and the matching in the selection unit 174 is based on the matching signal from the corresponding device. After the table is set, the driving of the ID discrimination unit 170 is stopped.

Therefore, according to the present invention, ROM tables of other devices that do not have driving commands stored in the plurality of ROMs 121 and 122 can be accurately downloaded and stored in the NV-RAM 123 to perform desired functions of other devices. Therefore, there is an effect that can prevent errors that may occur when downloading the ROM table.

Claims (1)

When a download key signal is generated from the keypad 100 on the basis of an operation signal from the outside, a parallel driving command corresponding to the same is extracted from the ROM 120, converted into serial driving, and then converted into an infrared signal and sent to the corresponding device. The download method of the remote controller for downloading the ROM table drawn out from the ROM 230 in the corresponding device and transmitted through the light emitting unit 245. When a download key signal is generated from the keypad 100, an ID discriminating unit ( A first step of driving 170, extracting a parallel driving command corresponding to the download key signal from the ROM 120, converting it into an infrared signal, and sending the same to the corresponding device; The ROM table of the corresponding device is extracted from the ROM 230 in the corresponding device based on the infrared signal transmitted from the remote controller, and then the table of the corresponding device extracted from the ROM 230 in the corresponding device is read. A second step of transmitting the light receiving unit 160; A third step of downloading the ROM table transmitted from the corresponding device in the second step and storing the ROM table in the NV-RAM 123 of the remote controller and checking whether an end signal is received from the corresponding device; In the third step, the ROM table of the corresponding device is downloaded and stored in the NV-RAM 123 of the remote controller until the end signal is transmitted from the corresponding device. A fourth step of extracting the ROM table from the corresponding device stored in the NV-RAM 123 and transmitting the extracted ROM table to the light receiving unit 210 of the corresponding device; The ROM table transmitted from the remote controller in the other device is compared with the ROM table stored in the ROM 230 in the corresponding device. If the two ROM tables are the same, a match signal is transmitted to the remote controller. A fifth step of transmitting a mismatch signal to the remote controller if the two ROM tables are not the same; When the mismatch signal is sent from the corresponding device, the NV-RAM 123 is reset, and the ROM table stored in the ROM 230 in the corresponding device is downloaded again. When the matching signal is sent from the corresponding device, the ROM table is reset. And a sixth step of stopping the driving of the ID discrimination unit (170) after setting in the remote controller.