KR19980075331A - Control Program Loading Device and Execution Method in Modular Television - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control program loading apparatus and a method for executing a control program in a modular television, wherein a control program stored in a ROM of a module inserted into the modular television can be loaded by the control means of the modular television. Even if the control program for the module that can be inserted into the storage means is not stored, the microcomputer loads the control program stored in the storage means of the module to be inserted into the storage means of the microcomputer, and operates the module so that the microcomputer of the television is inserted. Not only can the control be controlled smoothly, but also the control program for the module that can be inserted into the storage means of the microcomputer can be reduced, thereby reducing the size of the control program and thereby improving the processing speed. With The.

Description

Control Program Loading Device and Execution Method in Modular Television

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control program loading apparatus and a method for executing the same in a modular television, and more particularly, to a modular television in which a control means of a modular television can load a control program stored in a ROM of a module inserted into the modular television. The present invention relates to a control program loading apparatus and an execution method.

Currently, a multifunctional television developed in response to various demands of consumers is included in a broadcast signal transmitted from a broadcast station in addition to the basic function of receiving a broadcast signal for a video / audio signal transmitted from a broadcast station and performing a playback operation for the broadcast signal. Detects ID code data, TEXT data, pilot signal, and the like, and performs additional recording function on the video / audio signal based on the detected signal data, for example, by performing a reserved recording operation using the detected ID code data. The TEXT screen is output using the detected TEXT data. The battery performs surround processing on the voice signal using the detected pilot signal.

However, as the production process becomes more complicated in the production of televisions capable of performing these additional functions, the production cost and the time required to manufacture the product increase, which is the main reason for the increase in the product price of the television. do.

In view of these circumstances, the proposed modular television produces a television that performs basic functions and provides a separate function by inserting a specific module into the television to allow the television to perform additional functions. According to the modular television, in order to perform an additional function, a microcomputer, which is a control unit of a television serving as a main body, needs to control a module to be inserted to perform the additional function.

In accordance with the necessity, the storage means provided in the microcomputer of the television stores a control program for controlling the insertable module in a kind corresponding to the number of modules. If the types of modules are diversified, all the control programs for the diversified modules should be stored in the storage means of the microcomputer. Therefore, the control program stored in the storage means becomes larger and the processing speed of the microcomputer is not only lowered. There was a problem that can not effectively cope with.

Accordingly, the present invention has been made in view of the above-described circumstances, and the control program loading apparatus and the execution of the control program in the modular television such that the control means of the modular television can load the control program stored in the ROM of the module inserted into the modular television. The purpose is to provide a method.

According to an embodiment of the present invention for realizing the above object, a connection for connecting a microcomputer that performs the overall function of a television, and a series of devices for performing the basic function with a device in a module inserted from outside A modular television comprising a terminal and a module connected to the television via a connection terminal to perform an additional function, the module comprising: an I / O terminal for data exchange with the microcomputer; A ROM in which a control program for controlling a module is stored and an arbitrary special function block for performing an additional function are configured. When the microcomputing state is detected, the microcomputer reads the control program stored in the ROM of the module. The read control program is stored in the microcomputer and the module is based on the control program. The control program loaded in the modular TV system, characterized in that for controlling the operation are provided.

In addition, according to an embodiment of the present invention for realizing the above object, in a modular television that is capable of performing a special additional function provided by the detachable module is connected to the connection terminal, the power supply of the television In operation 1, when the module is inserted, the control program stored in the ROM of the module is read when the module is inserted. There is provided a method of executing a control program in a modular television, comprising two steps of updating and storing in a storage means of a computer, and three steps of performing operation control by the module based on the control program updated and stored by the microcomputer.

According to the control program loading apparatus and the execution method of the modular television having the above-described configuration and steps, since the control program for controlling the module is stored in a ROM which is a storage means provided in the module to be inserted into the modular television, the modular television The microcomputer loads the control program and performs control on the inserted module, so that the control program for controlling each module does not need to be stored in a ROM provided in the microcomputer of the corresponding modularization television.

1 is a block diagram showing a modular television to which the present invention is applied;

2 is a view showing a data storage structure of the memory of the microcomputer 12 and the ROM 30 of the module 28 according to an embodiment of the present invention;

3 is a flowchart for explaining a method of executing a control program in a modular television according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: control signal input unit, 12: microcomputer,

14: tuner, 16: IF module,

18: video signal processor, 20: video amplifier,

22: voice signal processor, 24: voice amplifier,

26: connection terminal, 28: module,

29: I / O processing unit, 30: ROM,

31: Voice surround processing unit.

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

1 is a block diagram of a modular television according to an embodiment of the present invention, in which reference numeral 10 denotes a control signal input unit for setting various functions provided in the modular television with a plurality of function buttons. The control signal input section is provided with a power button for turning on / off the power of the television and a pack insertion opening (not shown) for connecting the pack-shaped module 28 to be described later with the television. The ejection button for separating the module 28 inserted into the pack insertion opening from the television is configured.

In the drawing, reference numeral 12 denotes a microcomputer that controls the entire apparatus to perform a control operation corresponding to a control signal input from the control signal input unit 10. In the present invention, the microcomputer 12 is a module 28 of the module 28. When the insertion state is detected, the control program stored in the ROM 30 of the module 28 is loaded to perform a control operation on the inserted module 28 based on the loaded control program, and the ROM 12A as a storage means. And RAM 12B.

Reference numeral 14 selects a specific channel selected by the user from among a plurality of channels received through the antenna based on the tuning voltage VT applied from the microcomputer 12, and accesses the broadcast signal of the tuned channel. Tuner output to the A stage of

Reference numeral 16 denotes an IF module that amplifies the IF signal (intermediate frequency signal) of the broadcast signal input through the B stage of the module 28, which will be described later, and then outputs the amplified IF signal to the C stage. Detects only the PIF signal from the intermediate frequency signal input through the D stage of (28), and performs image processing operation on color / brightness / tint / sharpness based on the control of the control unit 12 for the video signal. 20 is an image amplifying unit that amplifies the video signal from the image signal processing unit 18 so that it can be output through a CRT (Cathode Ray Tube) which is an image reproduction output device.

Also, reference numeral 22 detects only the SIF signal from the intermediate frequency signal input through the E stage of the module 26, and then adjusts the volume / voice multiple processing / voice based on the control of the controller 12 for the voice signal. A voice signal processing unit for performing a voice processing operation for surround processing, etc., 24 is a voice amplifier for amplifying so that the voice signal from the voice signal processing unit 22 can be output through a speaker which is a voice output device of the television.

Reference numeral 26 denotes a module described below by connecting the input / output terminals of the tuner 14, the IF module 16, the video signal processor 18, the audio signal processor 22, and the microcomputer 12 to the A-G terminals, respectively. 28 is a connection terminal for enabling signal connection between the tuner 14, the IF module 16, the video signal processor 18, and the audio signal processor 22, and 28 is a module for performing a voice surround function. As the module 28, the A stage and the B stage are connected signally, and the C stage is connected to the D stage and the E stage, and the intermediate frequency signal inputted through the C stage is connected to the audio surround processing unit 31. It is output through the E stage. In addition, the F terminal and the G terminal are connected to + 5V to recognize the microcomputer 12 that the corresponding module 28 performs a voice surround function, and to receive control data from the microcomputer 12 or to be described later. I / O means for transmitting the data read out from the ROM 30 to the microcomputer 12, and a ROM 30 in which a control program for controlling the module 28 is stored.

Meanwhile, as shown in FIG. 2A, an operating system (OS) program for initial startup is stored in a ROM area of a memory provided as a storage means in the microcomputer 12. In FIG. As shown, the ROM 30 of the module 28 stores a start address A and an end address B, and an application program for controlling the module 28 as a whole.

Next, a method of executing a control program in a modular television according to an embodiment of the present invention will be described in detail with reference to the flowchart shown in FIG.

When the power of the television is turned on by the control signal input unit 10, while executing the main program corresponding to the OS program stored in the ROM 12A embedded in the microcomputer 12 (step 60), the connection terminal 26 It is determined whether the insertion state of the module 26 is sensed through the F stage and the G stage of the step (step 61).

If the 'high' level signal is applied through the F terminal and the G terminal of the connection terminal 26 in the determination process, the microcomputer 12 proceeds to step 62 according to the determination result (YES in step 51) in step 51. In step 62, data corresponding to an application program stored in the ROM 30 is read by applying a predetermined read signal to the ROM 30 through the I / O terminal 29 to read the I / O. It is transmitted to the microcomputer 12 through the terminal 28.

Subsequently, the microcomputer 12 applies a predetermined write signal to the RAM 12B so that data read from the ROM 30 of FIG. 2B is stored between address A and B of the RAM 12B. After that (step 63), the microcomputer 12 performs a control operation on the module 28 based on a program executed by data recorded between addresses A and B of the RAM 12B ( Step 64).

That is, when the voice surround mode is set by the control signal input unit 10, the microcomputer 12 enables the voice surround processing unit 31 through the I / O terminal 29 to enable the C terminal. After the voice signal input through the voice surround processing unit 31 is subjected to the voice surround processing is applied to the voice signal processing unit 22 through the E terminal, the voice signal applied to the voice signal processing unit 22 The volume is output to the speaker through the voice amplifier 24 after volume control is performed under the control of the microcomputer 12.

Then, the microcomputer 12 determines whether the current execution address reaches the modification address (that is, address A) during the execution of the main program (step 65), and as a result, the current execution address is the modification address ( If it is not determined that the state A has been reached (NO in step 65), the main program is continuously executed (step 66), whereas the current execution address is determined to be the correct address (address A). If it is determined (YES in step 65), a predetermined read signal is applied to the RAM to execute a program stored in the RAM to perform a control operation by the program (step 67). It is determined whether the execution of the control operation is completed (step 68).

On the other hand, when it is determined in step 68 that the execution completion state by the corresponding program is determined (YES in step 68), the microcomputer 12 returns to the built-in ROM 12A and stores the data stored in the ROM 12A. By reading, the control operation by the main program stored in the RO 12A is performed (step 69).

As described above, according to the control program loading apparatus and the execution method of the modular television according to the embodiment of the present invention, the control program for the module that can be inserted into the storage means provided in the microcomputer of the television is inserted without being stored. The microcomputer loads the control program stored in the storage means of the module, stores the memory program in the storage means of the microcomputer, and operates the microcomputed module.

In addition, by not having to store the control program for the module insertable into the storage means of the microcomputer, the size of the control program can be reduced and the processing speed can be improved thereby.

Claims (6)

A microcomputer 12 that performs the overall functions of a television, a connection terminal 26 for signally connecting a series of devices for performing basic functions with a device in a module 28 inserted from the outside, and the connection terminal In a modular television configured with a module 28 which is connected to the television via signal 26 to perform an additional function, The module 28 has an I / O stage 29 for exchanging data with the microcomputer 12, a ROM 30 in which a control program for controlling the module 28 is stored, and performs an additional function. Arbitrary special function block 31 is configured, The microcomputer 12 reads the control program stored in the ROM 30 of the module 28 when the module 28 is inserted, stores the read control program in the microcomputer 12, and then A control program loading apparatus for a modular television, characterized in that for controlling the operation of the module (28) based on a control program. 2. The modular television set according to claim 1, wherein the storage means comprises a ROM 12A storing a main program for controlling the overall operation of the television and a RAM 12B for storing a program for module control. Control program loading device. 3. The ROM 30 has a control program for controlling the module 28, an update registration start address (address A) and an update registration end address (address B) of the RAM 12B of the controller 12. Control program loading device in a modular television, characterized in that it is included. The microcomputer 12 registers the control program read out from the ROM 30 between the update registration start address (address A) and the update registration end address (address B) of the RAM 12B. A control program loading device in a modular television, characterized in that for making. In a modular television in which the detachable module 28 is connected to the connection terminal 26, the detachable module 28 is able to perform the special additional functions provided by the module 28. A first step of determining whether the module 28 is inserted while executing the main program stored in the storage means of the microcomputer 12 when the television is powered on; If it is determined that the module 28 has been inserted, reading the control program stored in the ROM 30 of the module 28 and updating and storing the control program in the storage means of the microcomputer 12; The control program execution method of the modular television, characterized in that the micom (12) performs the operation control by the module (28) based on the updated and stored control program. The microcomputer 12 reads from the ROM 30 based on the update start address A and the update end address B stored in the ROM 30 of the module 28 in the third step. A control program execution method for a modular television, characterized in that the control program is updated and stored in the update start address (A) and update end address (B) areas of the storage means of the microcomputer (12).