KR0135820B1 - Function key control device of multifunctional composite product - Google Patents

Abstract

The present invention relates to a function key control apparatus for a multifunctional composite product including a plurality of microcomputers, comprising a plurality of function keys for operating the composite product for each function, and having a unique identification code corresponding to a key for a specific function. A function key input means for generating a key signal having a value, a signal receiving means for receiving a key signal input through the function key input means, and demodulating the received key signal to generate a code signal and the generated code It is characterized in that it comprises a control means having a signal input and at least two or more microcomputers that operate in response to only the code signal prescribed for each function.

According to the present invention, by operating only the input key signal for its own function for each of the different micom function, it is possible to minimize the data transmission between the micom, and to prevent data transmission error from the main microcomputer to the sub-microcom There is an advantage.

Description

Function key control device of multifunctional composite product

1 is a front view of one embodiment of a CD-TV composite product.

2 is a view for explaining the key arrangement of the control box of the CD-TV composite product shown in FIG.

3 is a block diagram of a function key control device in a CD-TV composite product according to the present invention.

* Explanation of symbols for main parts of the drawings

31: key transmitter 33: key receiver

35 TV control unit 37 CD control unit

The present invention is a multi-function composite product comprising a plurality of microcomputers, to receive a signal input through one function key input device to the function key control device of the composite product that can be processed by the microcomputer by separating each function It is about.

Conventional electronic products are produced and sold in the form of separate finished products for each function such as TV and VTR. However, according to the needs of various consumers, one finished product combining these functions is introduced. In particular, a TV-VTR composite product composed of a TV and a VTR integrated or a CD-TV composite product composed of a CD player and a television integrated are disclosed.

In a conventional multifunctional composite product, when a key is input by a user through a remote controller or a control box, the received signal is first interpreted by the main microcomputer, and a signal for controlling each function of the product is determined by the corresponding microcomputer. It was sent to a computer and the function worked accordingly.

However, since several different functions are combined in one product, it is necessary to effectively control the operation between these functions.

Accordingly, it is an object of the present invention to provide a function key control apparatus for a composite product for separately receiving and processing a signal input through one function key input device for each function.

Functional key control apparatus for a composite product according to the present invention for achieving the above object in the composite product that can operate with a plurality of functions, comprising a plurality of function keys for operating the composite product for each function, A function key input means for generating a key signal having a unique identification code value corresponding to a key for a function, a key signal input through the function key input means, and demodulating the received key signal to generate a code signal Signal receiving means for generating a and the generated code signal is input, characterized in that it comprises a control means having at least two or more micom to operate in response to only the code signal prescribed for each function.

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

FIG. 1 is a front view of a CD-TV composite product in which a CD player and a television are integrated as one example of the multifunctional composite product. In Figure 1, 10 is CRT, 12 is Speaker, 14 is Microphone Jack, 16 is Disk Door, 18 is CD Open / Close Button, 20 is Remote Control Window, 22 is Power Indicator Lamp, 24 is Main Power Button, and 26 is the control box.

2 shows the arrangement of keys installed in the control box 26, which is similar in the remote control which can be remotely controlled. The keys are largely divided into a TV control key section 28 and a CD control key section 30.

The TV control key 28 includes channel up / down keys, sound up / down keys, menu keys, TV / VIDEO keys, mute keys, and the like. The CD control key unit 30 includes pitch up / down keys, tempo up / down keys, confirmation keys, reservation keys, cancellation keys, 0-9 numeric keys, skip keys, scorecards, male / female separator keys, and background selection. Keys, play keys, stop keys, music selection up / down keys, CD on / off keys, menu keys, and the like.

3 is a block diagram showing the configuration of a function key control device in a CD / TV composite product according to the present invention. The CD / TV composite product includes a television receiver and a compact disc player, and can be operated in a TV mode operating as a TV receiver and a CD mode operating as a CD player according to a user's selection.

The key transmitter 31 has a TV function key for operating in the TV mode and a CD function key for operating in the CD mode to set the operation mode of the CD-TV composite product, and is usually attached to a remote control or a product. This is realized by the control box. Examples of TV function keys include channel up / down keys and sound up / down keys. Examples of CD function keys include CD open / close keys, pitch up / down keys, tempo up / down keys, playback keys, and stop keys. Etc. These various keys have unique identification code values, and when these keys are input, a key signal of an infrared code having a unique code value of the key input by the light emitting diode is generated.

The key receiver 33 demodulates the signal transmitted from the key transmitter and converts it into a code signal that can be recognized by the microcomputer, and outputs it to the TV controller 35 and the CD controller 37.

The TV controller 35 has a microcomputer that recognizes only code signals for performing TV functions among the code signals transmitted from the key receiver 33, and the CD controller 37 has a CD among the code signals transmitted from the key receiver 33. It is provided with a microcomputer that recognizes only a code signal for performing a function, and if the code signal is not related to its own function, it ignores the input code signal and operates in response to only the code signal of its own function.

As an example, a case in which the user inputs a channel up key in the remote controller, which is the key transmitter 31, is as follows.

At this time, the key transmitter 31 transmits a code corresponding to the channel up command set by the infrared light emitting element to the infrared. Then, the key receiver 33 converts the code corresponding to the received channel up command into a code signal that can be recognized by the microcomputer and outputs the code signal to the TV controller 35 and the CD controller 37.

However, since the channel up command is a function command not present in the CD player, the CD controller 37 ignores the input channel up command. On the contrary, since the input channel up command is a function command in the TV, the TV controller 35 controls the tuner block (not shown) to raise the channel in order to recognize the input channel up command and execute the same.

As another example, a case in which the user inputs a play key on the remote controller, which is the key transmitter 31, is as follows.

According to the same operation as that of the above channel up key input, the code signal corresponding to the playback command is input to the TV control unit 35 and the CD control unit 37. However, in this case, the playback function is not present in the TV, and can only be executed by the CD control unit 37. The TV control unit 35 ignores the CD control unit 37 without recognition because there is no key code corresponding to the playback command. ) Only recognizes the key code corresponding to the play command and controls the servo block (not shown) to execute the play mode.

Therefore, the TV control unit 35 and the CD control unit 37 operate by directly receiving the necessary code signal, and the data transmission between the TV control unit 35 and the CD control unit 37 is minimized only in the case where the two functions overlap.

As described above, according to the present invention, the microcomputers having different functions operate by recognizing only input key signals for their own functions, thereby minimizing data transfer between the microcomputers, and data transmission errors from the main microcomputer to the submicrocom. There is an advantage to prevent this.

Claims (1)

A composite product capable of operating with a plurality of functions, comprising: a plurality of function keys for operating the composite product for each function, and generating a key signal having a unique identification code value corresponding to a key for a specific function Function key input means for receiving a key signal input through the function key input means, and a signal receiving means for generating a code signal by demodulating the received key signal: and the generated code signal is input, by function And a control means having at least two microcomputers which operate in response to only a prescribed code signal.