KR980007655A - Data bit transceiver using front porch of composite video signal and automatic adjustment of aspect ratio of television receiver using the same - Google Patents
Data bit transceiver using front porch of composite video signal and automatic adjustment of aspect ratio of television receiver using the same Download PDFInfo
- Publication number
- KR980007655A KR980007655A KR1019960023521A KR19960023521A KR980007655A KR 980007655 A KR980007655 A KR 980007655A KR 1019960023521 A KR1019960023521 A KR 1019960023521A KR 19960023521 A KR19960023521 A KR 19960023521A KR 980007655 A KR980007655 A KR 980007655A
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- data
- counter
- video signal
- front porch
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/20—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits characterised by logic function, e.g. AND, OR, NOR, NOT circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K21/00—Details of pulse counters or frequency dividers
- H03K21/38—Starting, stopping or resetting the counter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
- H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
- H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
- H04N3/223—Controlling dimensions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/08—Separation of synchronising signals from picture signals
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Television Systems (AREA)
Abstract
본 발명은 복합영상신호의 프런트 포치(Front Porch)구간에 소정의 데이터비트를 코딩하여 송수신할 수 있도록 된 프런트 포치를 이용한 데이터비트 송수신장치와, 이를 이용하여 텔레비전 수상기의 화면비를 방송신호에 적합한 모드로 자동조절할 수 있도록 해주는 텔레비전 수상기의 화면비 자동조정시스템에 관한 것이다.The present invention provides a data bit transmission / reception apparatus using a front porch that is capable of transmitting and receiving a predetermined data bit in a front porch section of a composite video signal, and a mode suitable for a broadcast signal using an aspect ratio of a television receiver. The aspect of the present invention relates to an aspect ratio automatic adjustment system of a television receiver.
본 발명에 있어서는 복합영상신호의 수평동기신호를 근거로 그 수평동기신호의 정수배에 해당하는 주파수를 갖는 기준클록을 생성하고, 이를 카운터를 이용하여 계수함으로써 영상신호의 프런트포치구간에 해당하는 펄스신호를 생성하게 된다. 그리고, 상기 펄스신호에 해당하는 구간에 대해 소정의 비트데이터를 코딩 및 디코딩함으로써 방송신호와는 관계없는 다른 정보를 영상신호와 함께 송수신하게 된다.In the present invention, a reference clock having a frequency corresponding to an integer multiple of the horizontal synchronous signal is generated based on the horizontal synchronous signal of the composite video signal, and counted using a counter so as to count a pulse signal corresponding to the front porch section of the video signal. Will generate In addition, by coding and decoding predetermined bit data in a section corresponding to the pulse signal, other information irrelevant to the broadcast signal is transmitted and received together with the video signal.
상기 비트데이터로 송수신되는 데이터로서는 방송신호의 화면비와 관련된 화면비데이터나 그 밖의 다른 방송정보로 설정할 수 있는 바, 이러한 장치를 방송시스템에 적용하게 되면, 화면비에 따른 출력영상의 조정과 방송종류에 따른 영상상태의 조정 등을 자동으로 실행할 수 있게 됨으로써 사용자의 편의성을 대폭 향상시킬 수 있게 된다.The data transmitted / received as the bit data may be set to aspect ratio data related to the aspect ratio of a broadcast signal or other broadcast information. When such a device is applied to a broadcasting system, adjustment of the output image according to the aspect ratio and the type of broadcasting The user's convenience can be greatly improved by being able to automatically adjust the image state.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제2도는 본 발명의 기본적인 개념을 설명하기 위한 복합영상신호의 1수평주사기간에 대응하는 신호파형도.2 is a signal waveform diagram corresponding to one horizontal scanning period of a composite video signal for explaining the basic concept of the present invention.
제3도는 본 발명의 일실시예에 따른 복합영상신호의 프런트포치를 이용한 데이터 비트 송신장치를 나타낸 블록구성도.3 is a block diagram showing an apparatus for transmitting data bits using a front porch of a composite video signal according to an embodiment of the present invention.
제4도는 제3도에서의 수직블랭킹신호 생성부의 구성을 나타낸 회로구성도.FIG. 4 is a circuit diagram showing the configuration of the vertical blanking signal generator in FIG.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960023521A KR0182433B1 (en) | 1996-06-25 | 1996-06-25 | Data bit transmitter-receiver and aspect ratio auto control system of tv receiver using front porch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960023521A KR0182433B1 (en) | 1996-06-25 | 1996-06-25 | Data bit transmitter-receiver and aspect ratio auto control system of tv receiver using front porch |
Publications (2)
Publication Number | Publication Date |
---|---|
KR980007655A true KR980007655A (en) | 1998-03-30 |
KR0182433B1 KR0182433B1 (en) | 1999-05-01 |
Family
ID=19463266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960023521A KR0182433B1 (en) | 1996-06-25 | 1996-06-25 | Data bit transmitter-receiver and aspect ratio auto control system of tv receiver using front porch |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0182433B1 (en) |
-
1996
- 1996-06-25 KR KR1019960023521A patent/KR0182433B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR0182433B1 (en) | 1999-05-01 |
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Payment date: 20081201 Year of fee payment: 11 |
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