KR20150018157A - Error correction method for hdmi link system - Google Patents
Error correction method for hdmi link system Download PDFInfo
- Publication number
- KR20150018157A KR20150018157A KR1020130094732A KR20130094732A KR20150018157A KR 20150018157 A KR20150018157 A KR 20150018157A KR 1020130094732 A KR1020130094732 A KR 1020130094732A KR 20130094732 A KR20130094732 A KR 20130094732A KR 20150018157 A KR20150018157 A KR 20150018157A
- Authority
- KR
- South Korea
- Prior art keywords
- error
- link system
- data
- correcting
- data transmission
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000012937 correction Methods 0.000 title description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 238000004891 communication Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
- H04N21/43635—HDMI
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/4425—Monitoring of client processing errors or hardware failure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/025—Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame
- H04N7/035—Circuits for the digital non-picture data signal, e.g. for slicing of the data signal, for regeneration of the data-clock signal, for error detection or correction of the data signal
- H04N7/0357—Circuits for the digital non-picture data signal, e.g. for slicing of the data signal, for regeneration of the data-clock signal, for error detection or correction of the data signal for error detection or correction
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Databases & Information Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
The present invention relates to an error correcting method of an HDIM link system capable of recovering error data that may occur in a data transmission process of an HDMI link system.
A method for correcting an error occurring in the transmission and reception of data in an HDMI link system, the method comprising: detecting a time interval in a data transmission / reception period of the HDMI link system that has no substantial data transmission; ; A second step of inserting a preamble code for informing whether or not the error is corrected; A third step of inserting positional information of an error code and related data for correcting the generated error; And a fourth step of correcting the generated error based on the information obtained through the second step and the third step.
Description
The present invention relates to an error correction method of an H.264 / AVC link system, and more particularly, to an H.264 / AVC system capable of recovering error data using a section without actual data transmission in a data transmission process of an HDMI Link system And an error correction method.
The HDMI (High Definition Multimedia Interface) is a high-definition multimedia interface which is one of the non-compression type digital video / audio interface standards. It is a multimedia interface for receiving from a multimedia source such as a transmitting device supporting HDMI, such as a smart phone, a smart pad, For example, AV devices, monitors, digital televisions, and the like, to transmit and receive video and control signals.
Even though HDMI has the same terminal shape, the version may be different depending on the time of release. The HDMI 1.3 specification in June 2006 improved bandwidth (165 megahertz → 340 megahertz) over the existing HDMI 1.2, resulting in a 2.560 x 1,600 resolution screen and can represent a vast 48-bit color than the existing 24-bit color.
In the conventional HDMI link system, there is no function that can correct errors that occur when an error occurs in at least one of these signals when transmitting and receiving video and control signals.
Accordingly, in a particularly poor channel transmission environment, there is a problem that a malfunction of the HDMI link system occurs or an error occurs in the received signal, and the desired data can not be normally transmitted / received from the transmitting apparatus to the receiving apparatus.
It is an object of the present invention to provide an error correction method of an H.264 / AVC system capable of recovering error data that may occur in a data transmission process of an HDMI link system will be.
According to an aspect of the present invention, there is provided a method of detecting a time slot in a data transmission / reception period of an HDMI link system, A second step of inserting a preamble code for informing whether or not the error is corrected; A third step of inserting positional information of an error code and related data for correcting the generated error; And a fourth step of correcting the generated error based on the information obtained through the second step and the third step.
According to the error correcting method of the H.264 / AVC link system according to the present invention, the error signal and data can be corrected in the receiving apparatus in the HDMI link system, and even in a poor channel transmission environment, More restoration is possible, and the desired data can be normally transmitted and received and can be smoothly appreciated.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of an H.264 / AVC link system according to the present invention; FIG.
2 is a flowchart of an error correcting method of the H.264 link system according to the present invention.
In the following, preferred embodiments, advantages and features of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a block diagram of an H.264 / AVC link system according to the present invention.
Referring to FIG. 1, the H.3DM link system according to the present invention includes a transmitting
More specifically, the transmitting
The
The
According to a preferred embodiment, the transmitting
When inserting the error correction code, specifically, it is configured to insert the normal data and the location information of the error code related thereto in order to correct the error.
The
Meanwhile, the transmitting
The transmitting
The
Hereinafter, a method of correcting an error in the HDIM link system through each of the above-described configurations of the present invention will be described.
2 is a flowchart of an error correction method of the H.264 / AVC system according to the present invention.
Referring to FIG. 2, the error correction method of the H.264 / AVCHD link system according to the present invention includes a data transmission interval detection step S10, a preamble code insertion step S20, error correction information insertion step S30, And an error correction execution step (S40).
The data transmission interval detection step S10 is a step of searching for a time interval in which data transmission is not actually occurring in a transmission interval of each channel data between the
The preamble code inserting step S20 is a step of inserting a preamble code into the receiving
The error correction information inserting step S30 inserts the error code position information and the generated error correction related data to the receiving
Here, the generated error correction-related data includes data for correcting an error and recovering a normal signal.
Meanwhile, the error correcting code inserting step S30 may be configured to be performed in the data non-transmission time interval detected in step '10' as in step S20.
The error correction execution step S40 is a step in which the receiving
According to the above-described method, error signals and data can be corrected in the receiving apparatus in the HDMI link system, and error in the receiving signal can be more restored than in the conventional HDMI link system even in a poor channel transmission environment.
While the preferred embodiments of the present invention have been described and illustrated above using specific terms, such terms are used only for the purpose of clarifying the invention, and it is to be understood that the embodiment It will be obvious that various changes and modifications can be made without departing from the spirit and scope of the invention. Such modified embodiments should not be understood individually from the spirit and scope of the present invention, but should be regarded as being within the scope of the claims of the present invention.
10: transmitting apparatus 11: transmitting apparatus processor
13: transmitting port 20: receiving device
21: receiving device processor 30: communication cable
Claims (3)
A first step of detecting a time interval in a data transmission / reception interval of the HDMI link system in which there is no substantial data transmission;
A second step of inserting a preamble code for informing whether or not the error is corrected;
A third step of inserting positional information of an error code and related data for correcting the generated error; And
And a fourth step of correcting the generated error based on the information obtained through the second step and the third step.
Wherein the second step and the third step are performed in a data transmission time interval detected in the first step.
Wherein the first step is configured to detect a time interval during which the actual data transmission is not performed in a transmission interval of each channel data of the HDMI link system.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130094732A KR20150018157A (en) | 2013-08-09 | 2013-08-09 | Error correction method for hdmi link system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130094732A KR20150018157A (en) | 2013-08-09 | 2013-08-09 | Error correction method for hdmi link system |
Publications (1)
Publication Number | Publication Date |
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KR20150018157A true KR20150018157A (en) | 2015-02-23 |
Family
ID=53046695
Family Applications (1)
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KR1020130094732A KR20150018157A (en) | 2013-08-09 | 2013-08-09 | Error correction method for hdmi link system |
Country Status (1)
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KR (1) | KR20150018157A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11895359B2 (en) | 2021-04-13 | 2024-02-06 | Samsung Electronics Co., Ltd. | Electronic device and operating method thereof |
-
2013
- 2013-08-09 KR KR1020130094732A patent/KR20150018157A/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11895359B2 (en) | 2021-04-13 | 2024-02-06 | Samsung Electronics Co., Ltd. | Electronic device and operating method thereof |
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