KR970022966A - Video cassette record player with picture decryption - Google Patents

Video cassette record player with picture decryption Download PDF

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Publication number
KR970022966A
KR970022966A KR1019950038013A KR19950038013A KR970022966A KR 970022966 A KR970022966 A KR 970022966A KR 1019950038013 A KR1019950038013 A KR 1019950038013A KR 19950038013 A KR19950038013 A KR 19950038013A KR 970022966 A KR970022966 A KR 970022966A
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KR
South Korea
Prior art keywords
signal
output
image
data
microcomputer
Prior art date
Application number
KR1019950038013A
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Korean (ko)
Other versions
KR0171362B1 (en
Inventor
손용선
Original Assignee
이형도
삼성전기 주식회사
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Publication date
Application filed by 이형도, 삼성전기 주식회사 filed Critical 이형도
Priority to KR1019950038013A priority Critical patent/KR0171362B1/en
Publication of KR970022966A publication Critical patent/KR970022966A/en
Application granted granted Critical
Publication of KR0171362B1 publication Critical patent/KR0171362B1/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/026—Control of operating function, e.g. switching from recording to reproducing by using processor, e.g. microcomputer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Hardware Design (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

본 발명은 화상 암호해독 기능을 갖는 비디오 카세트 레코드 플레이어에 관한 것으로 특히, 제1 및 제2신호분배기(1, 12), 저잡음 증폭기(2), 튜너(3), VIF 피크부(4), 자동이득 조절부(5), 동기 팁 클램퍼(6), 화상암호 해독기(7), 외부화상 입력회로부(8), 녹화/재생 회로부(9), 비디오 스위치(10), 문자발생 회로부(11), 제1 및 제2프리증폭기(13, 17), 제1 및 제2밴드 패스 필터(14, 16), 데이터 복조기 (15), 데이터 전송기(18), 데이터 처리기(19) 및 마이컴(2))을 상호 연결 구성하여 줌으로써, 한국형 유선방송에서 실시하는 화상암호와 신호를 전용 유선방송 수신기가 없이도 신호내의 암호해독 및 시청이 가능하여, 케이블 컨버터(유성방송 수신기)가 불필요하고, 또 유선신호의 시청과 녹화와 같은 신호조작이 단순해짐은 물론 유선신호 시청을 위한 컨버터 구매비용을 절감시킬 수 있는 것이다.The present invention relates to a video cassette record player having a picture decoding function, and in particular, first and second signal dividers (1, 12), low noise amplifiers (2), tuners (3), VIF peaks (4), automatic Gain adjusting section 5, sync tip clamper 6, image decoder 7, external image input circuit section 8, recording / playback circuit section 9, video switch 10, character generating circuit section 11, First and second preamplifiers 13 and 17, first and second band pass filters 14 and 16, data demodulator 15, data transmitter 18, data processor 19 and microcomputer 2) By configuring the interconnection, the video encryption and signal performed by Korean cable broadcasting can be decoded and viewed in the signal without the need for a dedicated cable broadcasting receiver, which eliminates the need for a cable converter (voice broadcasting receiver) and the viewing of a wired signal. Simplify signal operations such as video and recording, as well as reduce the cost of purchasing converters for wired signal viewing It can be done.

Description

화상 암호해독 기능을 갖는 비디오 카세트 레코드 플레이어Video cassette record player with picture decryption

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 이 발명의 블럭 구성도.1 is a block diagram of the present invention.

Claims (1)

수신된 위성방송신호를 2분배시켜 주는 제1신호 분배기(1)와; 상기 제1신호 분배기(1)의 일측 출력신호를 소정레벨로 증폭시켜 주는 저잡음 증폭기(2)와; 상기 저잡음 증폭기(2)를 통해 출력되는 신호중 원하는 방송국의 주파수를 설정할 수 있는 튜너(3)와; 상기 튜너(3)와; 상기 튜너(3)에서 선국된 유선신호내의 영상신호와음향신호흫 각각 복조시켜 주는 VIF 피크부(4)와; 상기 VIF 피크부(4)에서 출력되는 신호중 영상신호를 일정크기의 신호로 조정시켜 주는 자동이득 조절부(5)와; 상기 자동이득 조절부(5)에서 출력되는 화상신호의 위치를 고정시켜 주는 동기 팁 클램퍼(6)와; 상기 동기 팁 클램퍼(6)에서 출력되는 화상신호를 포함되어 있는 화상 암호를 마이컴(20)의 제어를 받아 해독하는 화상암호 해독기(7)와; 외부에서 입력되는 화상신호를 상기 화상암호 해독기와 비디오 스위치(10)로 출력시켜 주는 외부화상 입력회로부(8)와; 마이컴(20)의 제어를 받아 화상의 재생 및 녹화기능을 수행하는 녹화/재생 회로부(9)와; 마이컴(20)의 제어를 받아 화상암호 해독기(7), 외부화상 입력회로부(8) 및 녹화/재생 회로부(9)의 출력신호를 선택적으로 문자발생 회로부(11)의 입력단자에 연결시켜주는 비디오 스위치(10)와; 마이컴(20)의 제어를 받아 상기 녹화/재생 회로부(9)를 통해 출력되는 화상신호내에 소정의 문자신호를 발생하여 VCR(21)로 출력시켜 주는 문자발생 회로부(11)와; 상기 제1신호 분배기(1)를 통해 출력되는 위성방송신호를 2분배새켜 주는 제2신호 분배기(12)와; 상기 제2신호 분배기(12)의 출력신호를 소정레벨로 증폭시켜 주는 제1프리증폭기(13)와; 상기 제1프리 증폭기(13)를 통해 출력되는 신호를 소정밴드의 통신채널로 여과시켜 주는 제1밴드패스 필터(14)와; 상기 제1밴드패스 필터(14)의 출력데이타를 복조시켜 주는 데이터 복조기(15)와; 상기 데이터 복조기(15)의 출력신호를 마이컴으로 전송시켜 줌과 동시에 마이컴에서 출력되는 데이터를 데이터 전송기(18)로 전송시켜주는 데이터 처리기(19)와; 상기 데이터 처리기(19)의 출력데이타로 소정데이타로 변조시켜 주는 데이터 변조기(18)와; 상기 데이터 변조기(18)의 출력신호를 일정레벨로 증폭시켜 제2프리증폭기(17)와; 상기 제2 프리증폭기(17)의 출력신호를 송신채널로 여과하여 제2신호 분배기(12)로 출력시켜 주는 제2밴드패스 필터(16)와; 소정 프로그램에 통해 시스템의 전반적인 제어 기능을 수행하는 마이컴(20)을 상호 연걸 구성하여서 된 것을 특징으로 하는 화상 암호해독 기능을 갖는 비디오 카세트 레코드 플레이어.A first signal distributor (1) which divides the received satellite broadcast signal into two; A low noise amplifier (2) for amplifying an output signal of one side of the first signal splitter (1) to a predetermined level; A tuner (3) capable of setting a frequency of a desired broadcasting station among the signals output through the low noise amplifier (2); The tuner (3); A VIF peak section 4 for demodulating the video signal and the audio signal in the wired signal tuned by the tuner 3, respectively; An automatic gain adjusting unit (5) for adjusting an image signal among signals output from the VIF peak unit (4) to a signal having a predetermined size; A sync tip clamper (6) for fixing the position of the image signal output from the automatic gain adjusting unit (5); An image encryptor (7) for decoding the image cipher including the image signal output from the sync tip clamper (6) under the control of the microcomputer (20); An external image input circuit section 8 for outputting an image signal input from the outside to the image decoder and the video switch 10; A recording / reproducing circuit unit 9 which performs control of the microcomputer 20 to perform image reproduction and recording functions; A video for selectively connecting the output signals of the image decoder 7, the external image input circuit unit 8, and the recording / reproducing circuit unit 9 to the input terminals of the character generating circuit unit 11 under the control of the microcomputer 20. A switch 10; A character generating circuit section 11 for generating a predetermined character signal in the image signal output through the recording / reproducing circuit section 9 and outputting it to the VCR 21 under the control of the microcomputer 20; A second signal distributor (12) for dividing the satellite broadcast signal output through the first signal distributor (1) into two parts; A first preamplifier (13) for amplifying the output signal of the second signal divider (12) to a predetermined level; A first band pass filter (14) for filtering the signal output through the first preamplifier (13) to a communication channel of a predetermined band; A data demodulator (15) for demodulating the output data of the first band pass filter (14); A data processor 19 for transmitting the output signal of the data demodulator 15 to the microcomputer and transmitting the data output from the microcomputer to the data transmitter 18; A data modulator 18 for modulating the output data of the data processor 19 into predetermined data; A second preamplifier 17 for amplifying the output signal of the data modulator 18 to a predetermined level; A second band pass filter 16 for filtering the output signal of the second preamplifier 17 through a transmission channel and outputting the filtered signal to the second signal divider 12; A video cassette record player having an image decryption function, characterized in that the microcomputer (20) which performs overall control functions of the system through a predetermined program is constituted by mutual connection. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950038013A 1995-10-30 1995-10-30 Video cassette record player having an image decryption function KR0171362B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950038013A KR0171362B1 (en) 1995-10-30 1995-10-30 Video cassette record player having an image decryption function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950038013A KR0171362B1 (en) 1995-10-30 1995-10-30 Video cassette record player having an image decryption function

Publications (2)

Publication Number Publication Date
KR970022966A true KR970022966A (en) 1997-05-30
KR0171362B1 KR0171362B1 (en) 1999-04-15

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ID=19431879

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KR1019950038013A KR0171362B1 (en) 1995-10-30 1995-10-30 Video cassette record player having an image decryption function

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100716590B1 (en) * 2005-08-31 2007-05-09 (주)하이디어 솔루션즈 Display device having a data decryption module

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100716590B1 (en) * 2005-08-31 2007-05-09 (주)하이디어 솔루션즈 Display device having a data decryption module

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Publication number Publication date
KR0171362B1 (en) 1999-04-15

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