KR970078619A - End search device of scrambled data - Google Patents
End search device of scrambled data Download PDFInfo
- Publication number
- KR970078619A KR970078619A KR1019960019367A KR19960019367A KR970078619A KR 970078619 A KR970078619 A KR 970078619A KR 1019960019367 A KR1019960019367 A KR 1019960019367A KR 19960019367 A KR19960019367 A KR 19960019367A KR 970078619 A KR970078619 A KR 970078619A
- Authority
- KR
- South Korea
- Prior art keywords
- frame
- signal
- data
- detector
- scrambled
- Prior art date
Links
- 238000010586 diagram Methods 0.000 description 2
Classifications
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- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
-
- 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
- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
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)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Television Systems (AREA)
Abstract
본 발명은 디지탈신호처리시스템에 관한 것으로, 특히 한정 수신을 하도록 소정 데이터 단위로 스크램블되어 있는 입력신호의 데이터 끝부분(End)을 정확히 검출하여 디스크램블이 이루어질 수 있도록 하는 스크램블 데이타의 끝부분(End) 검색장치에 관한 것이다. 따라서, 본 발명은 스크램블을 이용하는 유료방송 환경의 디지탈TV 시스템에서 스크램블의 단위인 프레임이 가변적이 경우 이에 따른 프레임앤드에 대응하기 위해 다양한 프레임 입력방식을 지원하므로 프레임앤드를 정확이 검출하여 디스크램블이 이루어질 수 있는 잇점을 제공한다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital signal processing system, and in particular, an end portion of scrambled data that accurately detects an end portion of an input signal scrambled in a predetermined data unit so that descramble can be performed. ) Relates to a search apparatus. Accordingly, the present invention supports various frame input methods in order to cope with the frame end when the frame, which is a unit of scramble, is variable in the digital TV system of a pay broadcasting environment using scramble. It provides the benefits that can be achieved.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제3도는 본 발명의 프레임앤드검출부(62)를 내장한 디스크램블러(60)를 나타낸 구성도, 제4도는 제3도의 프레임앤드검출부(62)를 상세히 도시한 구성도.3 is a configuration diagram showing a descrambler 60 incorporating the frame-and-detecting section 62 of the present invention, and FIG. 4 is a configuration diagram showing the frame-and-detecting section 62 of FIG.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960019367A KR100191321B1 (en) | 1996-05-31 | 1996-05-31 | Scramble data end detection apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960019367A KR100191321B1 (en) | 1996-05-31 | 1996-05-31 | Scramble data end detection apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970078619A true KR970078619A (en) | 1997-12-12 |
KR100191321B1 KR100191321B1 (en) | 1999-06-15 |
Family
ID=19460519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960019367A KR100191321B1 (en) | 1996-05-31 | 1996-05-31 | Scramble data end detection apparatus |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100191321B1 (en) |
-
1996
- 1996-05-31 KR KR1019960019367A patent/KR100191321B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR100191321B1 (en) | 1999-06-15 |
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FPAY | Annual fee payment |
Payment date: 20121228 Year of fee payment: 15 |
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Payment date: 20131230 Year of fee payment: 16 |
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