KR100245527B1 - Memory correction controlling method for television - Google Patents

Abstract

The present invention assigns a memory correction permission register and a memory correction address to a last memory (EEPROM) used for data storage of last data in a television, and the memory correction permission register for data errors generated in the memory (ROM) in the control microcomputer. A memory correction control method for a television that allows correction data to be loaded into a temporary memory (RAM) in a microcomputer through the flag setting and the memory correction address of the present invention.

Accordingly, the present invention provides a first step of clearing and temporarily setting data of a temporary memory unit (RAM) of the internal memory 8 built into the microcomputer 6 when the power source of the television " on " A second to load and set the memory correction permission register set address data for the data memory (ROM) of the internal memory 8 from the memory correction permission registers 24 and 26 of the data storage section 4 (EEPROM) under control; And determining whether a memory correction permission register (24, 26) has been set for a memory correction for the data memory (ROM) of the internal memory (8) through the set address data for the memory correction permission register. If it is determined that the third step and a flag for allowing memory correction are set in the memory correction permission registers 24 and 26, the memory correction address storage areas 28, 30, 32, and 34 of the data storage unit 4 are set. A fourth step of loading the stored upper / lower address data and setting it in the SFR RAM 38 provided in the temporary memory (RAM) portion of the internal memory 8; and the data memory (ROM) of the internal memory 8; A fifth step of loading the correction data to be corrected in the SFR RAM 38 and setting it in the SFR RAM 38, and last data for controlling the function of the television stored in the last data storage area 36 of the data storage unit 4; A sixth step of loading the data into the memory collation storage area 40 of the internal memory 8 and according to the key operation state of the function setting unit 2 with the last data loaded. A predetermined operation is performed, and a seventh step of updating / storing the processing data which is varied according to the operation as the last data in the data storage unit 4 is characterized in that it is performed.

Description

Memory correction control method of TV {MEMORY CORRECTION CONTROLLING METHOD FOR TELEVISION}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a memory correction control method of a television, and more particularly, to a data error of a memory (ROM) in a microcomputer by using a last memory (EEPROM) for storing last data for various setting states of a television. A memory correction control method for a television that can be modified.

In general, a television is tuned to a predetermined channel among a plurality of television broadcast signals transmitted from a plurality of television stations through a tuner to be reproduced through a CRT and a speaker through video / audio signal processing through a video / audio processing means. The basic functions of such a television include channel tuning for multiple channels, adjustment of the analog signal level (e.g., contrast, brightness, color) of the video signal, volume and sound quality of the audio signal (bass). Bass, Treble) adjustment function is provided.

In addition, such additional functions included in the television include an on / off timer reservation function for reserving wake-up time and sleep time for the user, and simultaneous viewing of a multi-channel television program through reproduction of the main / sub picture. PIP (Picture In Picture) playback function is provided.

On the other hand, in a television, a microcomputer (Micom) of one chip is provided for controlling various functional operations of such a television, and such microcomputer includes data such as ROM in which control program data used for controlling various functions is stored. Execution control data or processing data indicative of an execution state for a plurality of function operations in which a memory is built-in and which are variablely set are temporarily stored only in the power on state of the television, and data is recorded in the power off state. Temporary memory consisting of RAM to be erased is built in.

In addition, such a television can display current setting data related to various function operations such as a broadcasting channel set by a user, an analog level adjustment state for a video / audio signal, or setting data according to an on / off timer reservation function. It is finally stored even when the power source is turned off, and the stored set data at the power source is turned on to execute various set function operations such as tuning of a broadcast channel and adjusting volume. Since a last memory is adopted, such a last memory is composed of an EEPROM (Electrically Eraserble Programmable ROM) capable of erasing the data by applying an erase current.

Therefore, the last memory can be used to store the final data of the setting data for various various function operations, and the adjustment value preset by the user regardless of the " on / off " power of the television. The television broadcasting can be stably reproduced according to the present invention.

However, in such a television, when a sudden data error occurs in a data memory (ROM) in which control data, such as a control program embedded in the microchip of one chip, is stored, a countermeasure against a data error generated in the corresponding data memory (ROM) is prevented. In a state in which it is not provided, there is a problem that the control process for the function execution as the setting state for the various functions set by the user becomes impossible, so that the function control for normal reproduction processing for the television broadcast becomes impossible.

Accordingly, the present invention has been made in view of the above-described circumstances, and a memory correction permission register and a memory correction address are allocated to a last memory (EEPROM) used for storing last data in a television, and then to a memory (ROM) in a control microcomputer. It is an object of the present invention to provide a memory correction control method for a television that allows correction data to be loaded into a temporary memory (RAM) in a microcomputer by setting a flag of a memory correction permission register and a memory correction address for a data error that occurs.

According to the memory correction control method of a television according to the present invention for achieving the above object, the first to clear the temporary memory unit (RAM) of the internal memory built into the microcomputer at the time of power supply " on " And a second step of loading and setting the memory correction permission register set address data for the data memory (ROM) of the internal memory from the memory correction permission register of the data storage unit (EEPROM) under the control of the microcomputer; A third step of judging whether or not a flag for allowing memory correction for the data memory (ROM) of the internal memory is set in the memory correction permission register through the set address data for the memory correction permission register; and the memory in the memory correction permission register. If it is determined that a flag allowing correction is set, the menu of the data storage unit A fourth step of loading the upper / lower address data stored in the reset address storage area and setting it in the SFR RAM provided in the temporary memory (RAM) part of the internal memory; and the correction target in the data memory (ROM) of the internal memory. A fifth step of loading the corrected data into the SFR RAM and loading last data for function control of the television stored in the last data storage area of the data storage unit; The sixth step of loading into the storage area, and a predetermined operation according to the key operation state of the function setting unit is performed in the state that the last data is loaded, and the processing data changed according to the operation is stored as last data in the data storage unit. A memory correction control method for a television comprising a seventh step of updating / storing is provided.

According to the present invention configured as described above, the memory of the last memory (EEPROM) for correcting the data error with respect to the data memory (ROM) of the internal memory allocated inside the microcomputer of the one chip at the time of power supply " on " of the television. Set the flag of the correction permission register to the correction permission state, load the memory correction address stored in the memory correction address storage area of the last memory (EEPROM), and set it in the temporary memory (RAM) of the internal memory. Loads correction data for correcting a data error for a ROM and stores it in a temporary memory (RAM), and loads last data for control of a function operation stored in the last memory (EEPROM), and receives each functional operation. Corrected data stored in the temporary memory (RAM) so that the data can be executed normally and replace the data error portion of the data memory (ROM). Through and to be able to be controlled for each function.

1 is a block diagram showing a memory correction control apparatus for a television to which the method of the present invention is applied;

FIG. 2 is a diagram illustrating a state in which a memory correction permission register and data for a memory correction address are stored in a data memory shown in FIG. 1 according to a preferred embodiment of the present invention;

3 is a view showing a flag setting state for a memory correction permission register in the data memory shown in FIG. 2 according to a preferred embodiment of the present invention;

4 is a view showing a state in which a memory correction address and correction data are stored in an internal memory shown in FIG. 1 according to a preferred embodiment of the present invention;

5A and 5B are flowcharts illustrating the operation according to the preferred embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

2: function setting part, 4: data storage part (EEPROM),

6: microcomputer, 8: internal memory (RAM + ROM),

10: receiving antenna, 12: tuner,

14: video IF unit, 16: video signal processing unit,

18: horizontal / vertical deflection driving unit, 20: voice IF unit,

22: Voice signal processing unit.

Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing a memory correction control apparatus for a television to which the method of the present invention is applied. In the figure, reference numeral 2 denotes a remote control for remote control or a matrix button portion provided in a predetermined portion of a control panel of a main body. A function setting section for performing function setting for the overall function operation assigned to the television or key operation for function execution is shown.

Also, reference numeral 4 denotes a chip select terminal CS, a clock terminal CLK, and a data input / output terminal DATA to enable data communication with the microcomputer 6 to be described later. The data on the setting state or the function execution state is finally stored as last data even in the " off " state of the main power supply, and the data memory (ROM) constituting the internal memory 8 in the microcomputer 6 described later is stored. Represents a data storage section consisting of, for example, EEPROM for loading error correction data in case of data error.

Here, the data storage unit 4 is a first bit is assigned a flag bit for allowing error correction for the data error occurred in the data memory (ROM) of the internal memory 8 to be described later as shown in FIG. And a memory correction address used as a correction address for correction data when setting a flag according to the memory correction permission of the second memory correction permission registers 24 and 26 and the memory correction permission of the first and second memory correction permission registers 24 and 26. First and second memory correction upper and lower address storage areas 28 and 30 and 32 and 34 in which data is stored, and last data storage area 36 in which last data for overall functions of the television are stored. .

Further, as shown in FIG. 3, the first and second memory correction permission registers 24 and 26 are allocated 8-bit data bit blocks, respectively, and the first and second blocks grant permission to correct data errors. For example, the first and second set address data including the permission flag bits of " 1 " and " 1 " and the prohibition flag bits " 0 " and " 0 " Will have

Reference numeral 6 denotes a microcomputer that performs execution control on various functions set by the key operation of the function setting unit 2, and the microcomputer 6 based on last data of the data storage unit 4 based on the last data. Recognizing the setting and execution status of various functions, it controls various functions such as tuning of broadcasting channels, analog level adjustment for video / audio signals, or execution of on / off timer reservation function. In preparation for the data error state of the data memory ROM of the internal memory 8, the control for loading the correction data for correcting the error into the temporary memory RAM of the internal memory 8 is performed.

Further, reference numeral 8 denotes a data memory which is embedded in the microcomputer 6 and comprises a ROM for storing control programs or setting data for controlling various functions of the television, and the data storage unit 4. Internal memory consisting of the last data loaded from the above), the memory correction address data loaded by the data error correction function, and a temporary memory for temporarily storing the correction data.

Here, the internal memory 8 includes an SFR RAM 38 in which memory correction address data and correction data from the data storage unit 4 are stored by executing a data error correction function as shown in FIG. It is composed of a memory combined storage area 40 in which last data from the data storage unit 4 is temporarily stored.

Also, reference numeral 12 is applied to the reception antenna 10 by receiving last data from the microcomputer 6 or channel tuning data VT for tuning of a predetermined channel designated by the key operation of the function setting unit 2. A tuner which tunes an RF signal of a corresponding channel in a plurality of induced channels, mixes it with a local oscillation frequency signal generated by the channel tuning data VT, and outputs it as an intermediate frequency signal.

Reference numeral 14 denotes an image IF unit which separates the image intermediate frequency signal from the television broadcast signal of the broadcast channel tuned from the tuner 12 and amplifies the intermediate frequency, and 16 denotes the intermediate frequency amplified image intermediate frequency signal. Amplification is performed, and the luminance signal and the chrominance signal are separated and output as a composite video signal through luminance adjustment and color demodulation processing, and set by the last data from the microcomputer 6 or the key operation of the function setting unit 2. A video signal processor for receiving a video control signal VC for an adjustment value of a video analog level to adjust the video analog level for the video signal.

Also, reference numeral 18 generates a horizontal / vertical driving signal synchronously with a horizontal / vertical synchronous signal separated from the video signal of the selected television broadcast, so that the horizontal / vertical deflection coil of the CRT (not shown) is horizontal / vertical. The horizontal / vertical deflection driving unit for performing vertical driving is shown.

Reference numeral 20 denotes an audio IF unit which separates the audio intermediate frequency signal from the television broadcast signal of a predetermined channel tuned from the tuner 12 and amplifies the audio intermediate frequency, and 22 denotes the last data from the microcomputer 6; The volume control and the sound quality of the intermediate frequency-amplified voice signal are applied by receiving the voice analog level adjustment value or the voice control signal AC according to the voice control mode set according to the key setting of the function setting unit 2, An audio signal processing unit that performs stereo signal processing, audio multiplexing processing, etc. in accordance with the mode switching state.

Next, the operation of the present invention made as described above will be described in detail with reference to the flowcharts of FIGS. 5A and 5B.

First, proceeding to step 50 in the flowchart shown in FIG. 5A, the microcomputer 6 clears the temporary memory RAM of the built-in internal memory 8 when the main power source is " on " In step 51, the data is set such that data can be stored in the temporary memory (RAM).

In this state, the microcomputer 6 loads the last data of the data storage unit 4 into the temporary memory RAM of the internal memory 8 and proceeds to the execution of the data error correction function. In response to the occurrence of a data error of the data memory ROM provided in the internal memory 8, an operation of loading correction data for the data error portion into the temporary memory RAM is performed. The operation is as shown in Figure 5b.

That is, the flow proceeds to step 60 in the flowchart shown in FIG. 5B to load the first set address data for the memory correction permission register from the first memory correction permission register 24 of the data storage unit 4, and step 61 The microcomputer 6 buffers the first set of address data in a buffer therein.

Next, the flow advances to step 62 to load the second set of address data for the memory correction permission register from the second memory correction permission register 26 of the data storage section 4, and the flow proceeds to step 63 therein. The second set address data is buffered in the buffer of.

In this state, the microcomputer 6 proceeds to step 64 and determines whether the flag bits of the first and second set address data buffered in the buffer therein are the same.

As a result of the determination in step 64, if it is determined that the flag bits of the first and second set address data are the same, then control proceeds to step 65 in which the corresponding flag bits are stored in the data memory (ROM) of the internal memory (8). It is determined whether or not the flag bit is set to allow error correction.

As a result of the determination in step 65, when it is determined that the flag bits of the first and second set address data having the same flag bits are set as flag bits for correcting a data error for the data memory ROM, the control is performed in step 66 Proceeds to and loads the first and second memory correction upper address data from the first and second memory correction upper address storage areas 28 and 32 of the data storage section 4, and proceeds to step 67 to load the data. The first and second memory corrected upper address data are set in the SFR RAM 38 of the temporary memory (RAM) provided in the internal memory 8.

The microcomputer 6 then proceeds to step 68 where the first and second memory correction subaddresses stored in the first and second memory correction lower address storage areas 30 and 34 of the data storage section 4 are stored. The data is loaded, and the process proceeds to step 69 where the loaded first and second memory correction lower address data is set in the SFR RAM 38 of the temporary memory (RAM) provided in the internal memory (8).

In this state, the flow advances to step 70 to determine and set correction data for data errors occurring in the data memory (ROM) of the internal memory 8, and proceeds to step 71 to set the set correction data to a temporary memory. Is set in the SFR RAM 38 of (RAM).

In operation 72, the microcomputer 6 stores the last data stored in the last data storage area 36 of the data storage unit 4 of the temporary memory RAM provided in the internal memory 8. The memory is integrated into the memory storage area 40 to be stored.

After the operation of step 52 as shown in FIG. 5B, the process proceeds to step 53 shown in FIG. 5A, and the microcomputer 6 checks the key operation state by the plurality of function keys provided in the function setting unit 2. Done.

In this state, if the predetermined function is set by the key operation of the function setting unit 2 by proceeding to step 54, the corresponding setting is made using the correction data of the temporary memory RAM provided in the internal memory 8; As the execution control for the function is performed, the channel tuning operation for the tuner 12, the video analog level adjustment operation for the video signal processing unit 16, or the audio analog level adjustment operation for the audio signal processing unit 22, and Control over the switching operation of the audio mode is performed.

In addition, in step 55, the microcomputer 6 updates and stores the processing data according to the function changed according to the function operation of the function setting unit 2 as last data in the data storage unit 4. do.

In step 56, the microcomputer 6 determines whether the function setting section 2 performs a key operation for " off " the main power supply.

As a result of the determination in step 56, when it is determined that the function setting section 2 is performing a key operation for " off " the main power supply, control proceeds to step 57 and the date and time provided in the internal memory 8 is provided. Instead of the last data stored in the memory RAM, the memory correction address data and the correction data being erased, the last data in the data storage section 4 is recorded and stored.

According to the present invention made as described above, by storing the correction data for data errors generated in the data memory (ROM) in the temporary memory by using the last memory in the television, it is possible to prevent malfunction due to the data errors As a result, a more stable control process becomes possible.

Claims (1)

A first step of clearing the temporary memory section (RAM) of the internal memory 8 built into the microcomputer 6 when the power supply of the television is " on " Under the control of the microcomputer 6, the set address data for the memory correction permission register for the data memory (ROM) of the internal memory 8 is transferred from the memory correction permission registers 24 and 26 of the data storage section 4 (EEPROM). A second step of loading and setting, A third step of determining whether a memory correction permission register (24, 26) has set a flag for allowing memory correction for the data memory (ROM) of the internal memory (8) through the set address data for the memory correction permission register; Wow, If it is determined that a flag allowing memory correction is set in the memory correction permission registers 24 and 26, the upper / lower values stored in the memory correction address storage areas 28, 30, 32, and 34 of the data storage unit 4 are determined. A fourth step of loading address data and setting it in the SFR RAM 38 provided in the temporary memory (RAM) portion of the internal memory 8; A fifth step of loading the correction data to be corrected from the data memory (ROM) of the internal memory 8 and setting it in the SFR RAM 38; Load the last data for the function control of the television stored in the last data storage area 36 of the data storage section 4 and load it in the memory collation storage area 40 of the internal memory 8. The sixth step, A predetermined operation is performed according to a key operation state of the function setting unit 2 while the last data is loaded, and the processing data which is varied according to the operation is updated / stored in the data storage unit 4 as last data. A memory correction control method for a television, comprising the seventh step.