KR100323671B1 - Method and apparatus for correcting communication data of TV - Google Patents

Abstract

The present invention relates to a communication data calibrating device and a method for detecting an error data and an error IC when a data error occurs and automatically correcting the data error by using calibration data previously stored in a memory. And a memory for storing normal data, a signal processor for controlling output by extracting normal data pre-stored in the memory when an error occurs in a data communication process, and an IC unit for determining whether to drive according to an output signal of the signal processor. In case of error IC or error data in data communication, error data is corrected in a method defined in a separate memory, thereby improving performance and reliability of a product.

Description

TV communication data correction apparatus and method {Method and apparatus for correcting communication data of TV}

The present invention relates to data communication, and more particularly, to an apparatus and method for correcting a communication data of a TV using an I ² C bus.

In general, a TV is a device that enables viewers to watch a broadcast signal containing a broadcast program through a series of signal processing. Currently, TV is widely used in almost all homes and broadcasts various programs such as life information, entertainment, news, and sports. It is the most popular multimedia medium among the rapidly developing multimedia devices that can access various information through viewing, regardless of age or class, from senior citizens to senior citizens, students, office workers, housewives, etc. The effect that can be focused on is outstanding.

As shown in FIG. 1, an apparatus for compensating communication data of a TV using an I ² C bus according to the related art includes a controller 10 for outputting various control signals, and an IC driven according to a control signal of the controller 10. It consists of a part 20.

The control unit 10 stores data or a ROM 12 composed of an MCU 11, a slave-address that distinguishes ICs by a coded program, a sub-address indicating a corresponding register, and data that is an instruction. RAM 13 for writing data, and I ² C communication processing unit 14 for performing a series of defined operations to control the IC unit 20.

The IC unit 20 includes a plurality of ICs 21-24, and is driven by a signal output from the I ² C communication processor 14 according to a control signal of the MCU 11.

At this time, since each IC 21-24 has its own slave-address and sub-address, each control operation is performed according to the data of the sub-address.

Here, the slave-address and the sub-address are configured as shown in the following table.

Slave address Sub address data IC 81hex 01hex 02hex IC 1 81hex 02hex 03hex 81hex 05hex 06hex 85hex 02hex 14hex IC 2 85hex 08hex 10hex 85hex 12hex 09hex 87hex 28hex 11hex IC 3 87hex 31hex 20hex 87hex 15hex 02hex 87hex 24hex 05hex 51hex 04hex 01hex IC 4 51hex 06hex 05hex 51hex 12hex 07hex

The data communication apparatus according to the prior art as described above has the following problems.

First, if the data stored in the ROM needs to be modified, the entire control part should be remasked.

Second, when an error occurs in a program or when data modification is required by a user's request and need, there is no way to correct it, which can cause a fatal error in the whole system.

Third, the normal control operation cannot be performed due to an error.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object thereof is to provide an error control apparatus and method in data communication, so that an error in data can be automatically corrected by a correction routine when data error occurs.

1 is a view showing a communication data correction apparatus of a TV according to the prior art

2 is a view showing a communication data correction apparatus of the TV according to the present invention.

3 to 5 is a flow chart showing an embodiment of a communication data correction method of the TV according to the present invention

Explanation of symbols for main parts of drawings

100: memory 200: signal processing unit

201: MCU 202: ROM

203: RAM 204: I ² C communication processing unit

300 IC section

The error correction apparatus of the data communication apparatus according to the present invention for achieving the above object, in the data communication apparatus, a memory for storing the normal data, and the normal data stored in the memory when the error occurs in the data communication process and outputs It comprises a signal processing unit for controlling the control unit and the IC unit to determine whether or not driving according to the output signal of the signal processing unit is characterized by.

Error correction method for a data communication apparatus according to the present invention for achieving the above object includes a memory and a plurality of the error correction method of the I ² C data communication apparatus having an IC, the I of the plurality of through ² C bus lines Determining whether there is an error of data applied to a predetermined IC among data applied to the IC; and if reference error of the data applied to the predetermined IC exists, the reference data of the predetermined IC is extracted from the memory to determine It includes the step of retransmission to the IC, which is characterized.

Hereinafter, an error correction apparatus and method of a TV according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a view showing an error correction apparatus of the TV according to the present invention, Figures 3 to 4 is a flow chart showing an embodiment of the error correction method of the TV according to the present invention.

As shown in FIG. 2, the error correction apparatus of a TV according to the present invention extracts and outputs a memory 100 for storing normal data and normal data stored in the memory 100 when an error occurs in a data communication process. The signal processing unit 200 for controlling the control unit, and the IC unit 300 to determine whether to drive according to the output signal of the signal processing unit 200.

The memory 100 stores normal data which is a reference for data communication, and may modify data defined in a program, thereby performing a control operation to correct an error.

The signal processing unit 200 calls a ROM 202 including a slave address for identifying ICs, a sub-address indicating a corresponding register and data corresponding to a command, and data stored in the ROM 202 in a predetermined order, or MCU 201 for controlling writing to RAM 203, and I ² C communication processing unit 204 for controlling IC according to the control signal of MCU 201.

That is, the I ² C communication processor 204 detects data errors of various ICs 301 to 304, extracts normal data from the memory 100, and corrects error data of the ROM 202.

The operation of the communication data correction apparatus of the TV configured as described above will be described with reference to the following embodiment.

First embodiment

A method of correcting error data when an error occurs in one IC will be described with reference to FIG. 3 as follows.

Referring to FIG. 3, first, data necessary for data communication is extracted from a specific address of a memory (S1).

It is determined whether there is data to be corrected in the extracted data (S2).

Subsequently, if there is data to be corrected (S2), the slave address of the IC to be corrected is extracted (S3).

Then, a slave address is specified in the extracted slave address buffer (S4).

Subsequently, the subaddress of the IC to be corrected is extracted (S5).

Sub-addresses are stored in the extracted sub-address buffer of the IC to be corrected (S6).

The normal data is extracted from the memory and stored in the correction data buffer of the RAM (S7-S8).

Subsequently, the I ² C communication processing unit extracts and writes correction data stored in the RAM buffer to the IC to be corrected, and sets correction completion data in a specific memory (S9-S10).

Second embodiment

The second embodiment is described with reference to FIG. 4 as a method of correcting a plurality of data as follows.

Referring to FIG. 4, data necessary for I ² C data communication is extracted at a specific address of the memory (S11).

It is determined whether there is data to be corrected in the extracted data (S12).

As a result of the determination (S12), if there is data to be corrected, the number of data A to be corrected is extracted (S13).

In addition, the slave address of the IC to be corrected is extracted (S14).

Subsequently, the extracted slave address is stored in a slave address buffer (S15).

The subaddress is extracted and stored in the subaddress buffer (S16-S17).

In addition, the data to be corrected is extracted and stored in the buffer (S18-S19).

The number of data to be corrected (A) is subtracted one by one to determine whether it is 0 (S20-S21).

If the number of data to be corrected (A) is 0, the correction is completed, and thus data stored in the RAM buffer is sequentially written to the corresponding IC, and correction data is set in a specific memory (S22-S23).

Third embodiment

A method of correcting a plurality of ICs and a plurality of data will be described with reference to FIG. 5 as follows.

Referring to FIG. 5, first, data necessary for data communication is extracted from a specific address of a memory (S31).

It is determined whether there is data to be corrected in the extracted data (S32).

Subsequently, the determination result (S32), if there is data to be corrected, the number of ICs to be corrected (B) and the number of data (A) to be corrected are checked (S33-S34).

The slave address of the IC to be corrected is extracted from the memory, and the slave address is stored in the extracted slave address buffer (S36).

Subsequently, the sub address is extracted from the memory, and the extracted sub address is stored in the sub address buffer (S37-S38).

The data to be corrected is extracted and the data to be corrected are stored in the buffer (S39-S40).

The number of data to be corrected (A) is decremented by 1 to determine whether or not the value is 0 (S41-S42).

As a result of the determination (S42), if the number of data to be corrected (A) is zero, it is determined whether the number of ICs to be corrected is zero by one (S43-S44).

Subsequently, when the determination result S44 indicates that the number B of ICs to be corrected is 0, correction data is set by sequentially writing the data stored in the buffer to the corresponding ICs (S45-S56).

As described above, the TV communication data error correction apparatus and method according to the present invention reads a specific address value of a previously stored memory, determines whether there is data to be corrected, corrects an error, and then sets new correction completed data.

The communication data error correction apparatus and method of the TV according to the present invention improves product performance and improves reliability of a product by correcting the error data in a method defined in a separate memory when an error IC or error data is generated in data communication. It can be effective.

Claims (6)

In TV communication data correction device, A memory for storing normal data; A signal processor configured to control normal data stored in the memory to correct error data when an error occurs in a data communication process; And, And an IC unit configured to determine whether to drive according to the control signal of the signal processor. In the communication data correction method of a TV having a memory and a plurality of ICs, Determining whether there is an error of data applied to a predetermined IC among data applied to the plurality of ICs through an I ² C busline; And, And correcting the error data by retrieving normal data from the memory if there is an error of data applied to the predetermined IC, and retransmitting the predetermined data to the predetermined IC. In the communication data correction method of a TV having a memory and a plurality of ICs, Determining whether error data exists in a plurality of data applied to a predetermined IC through an I ² C bus line when there are a plurality of data applied to a predetermined IC among the plurality of ICs; If error data exists in the plurality of data, extracting the corresponding reference data from the memory as many as the number of existing error data, and sequentially outputting the corresponding IC to correct the error data. Communication data correction method. The method of claim 3, wherein correcting the error data Storing the number of data to be corrected and the data to be corrected; Extracting the stored data to be corrected and sequentially writing the data stored in the RAM buffer to the IC to be corrected when the number of data to be corrected reaches zero; And, And setting the correction completion data in a specific memory to indicate the completion of the correction. In the communication data correction method of a TV having a memory and a plurality of ICs, Determining whether there is error data among a plurality of data applied to the plurality of ICs through an I ² C bus line when there are a plurality of data applied to the plurality of ICs; And correcting the error data by extracting correction data from the memory and sequentially outputting the correction data from the memory when a plurality of error data are present in the data applied to the plurality of ICs. Way. The method of claim 5, wherein correcting the error data comprises: Storing the number of data to be corrected and the data to be corrected; Storing the number of ICs to be corrected and the address of the IC to be corrected; Subtracting the number of data to be corrected and the number of ICs to be corrected by 1 and writing the corrected data stored in the RAM buffer sequentially to the corresponding IC when 0 is reached; And, And setting the correction completion data in a specific memory to indicate the correction completion.