KR930014467A - Automatic Gain Control System of Laser Disc - Google Patents

Automatic Gain Control System of Laser Disc Download PDF

Info

Publication number
KR930014467A
KR930014467A KR1019910024393A KR910024393A KR930014467A KR 930014467 A KR930014467 A KR 930014467A KR 1019910024393 A KR1019910024393 A KR 1019910024393A KR 910024393 A KR910024393 A KR 910024393A KR 930014467 A KR930014467 A KR 930014467A
Authority
KR
South Korea
Prior art keywords
signal
down counter
gain control
automatic gain
error signal
Prior art date
Application number
KR1019910024393A
Other languages
Korean (ko)
Other versions
KR940003387B1 (en
Inventor
이재신
Original Assignee
김광호
삼성전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019910024393A priority Critical patent/KR940003387B1/en
Publication of KR930014467A publication Critical patent/KR930014467A/en
Application granted granted Critical
Publication of KR940003387B1 publication Critical patent/KR940003387B1/en

Links

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

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

내용 없음No content

Description

레이저디스크의 자동이득 조절시스템Automatic Gain Control System of Laser Disc

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

제1도는 CDP(Compact Disc Player)의 포커스루우프(Focus Loop) 구성도.1 is a configuration diagram of a focus loop of a compact disc player (CDP).

제2도는 종래의 이득조정을 설명하기 위한 로우프 구성도.2 is a rope configuration diagram for explaining a conventional gain adjustment.

제3도는 본 발명의 자동이득조절시스템의 블록구성도.3 is a block diagram of the automatic gain control system of the present invention.

제4도는 본 발명 자동이득조절시스템의 일실시예를 나타낸 블록구성도.Figure 4 is a block diagram showing an embodiment of the automatic gain control system of the present invention.

Claims (3)

고주파증폭부(2)로부터 오차신호를 입력하여 업/다운카운터(15)의 출력에 따라 증폭율을 가변시키는 가변이득증폭기(11)와, 가변이득증폭기(11)에서 출력되는 아날로그 신호인 오차신호를 디지탈신호로 변환하는 A/D변환기(12), 오차신호의 피이크치와 기준전압의 레벨을 비교하는 윈도우비교기(13), 디지탈신호로 변환된 오차신호의 피이크치를 검출하는 피이크검출기(14), 상기 윈도우비교기(13)의 출력에 따라 업 또는 다운 카운팅을 하는 업/다운카운터(15), 오차신호를 발생시키는 조정신호발생기(16) 및 스위치(SW)로 구성되어 로우프 이득을 자동으로 조절하여 주는 것을 특징으로 하는 레이저디스크의 자동이득조절시스템.A variable gain amplifier 11 for inputting an error signal from the high frequency amplifier 2 to vary the amplification rate according to the output of the up / down counter 15, and an error signal that is an analog signal output from the variable gain amplifier 11. A / D converter 12 for converting a digital signal into a digital signal, a window comparator 13 for comparing the peak value of an error signal with a level of a reference voltage, and a peak detector 14 for detecting the peak value of an error signal converted into a digital signal. And an up / down counter 15 for up or down counting according to the output of the window comparator 13, an adjustment signal generator 16 for generating an error signal, and a switch SW to automatically adjust the rope gain. Automatic gain control system of the laser disk, characterized in that for giving. 제1항에 있어서, 피이크검출기(14)가 오아게이트(OR1, OR2)와 D형 플립플롭(DF1, DF2), 분주기(FD) 및 파형정형기(WS)로 구성되어 분주기(FD)와 파형정형기(WS)로 조정신호발생기(16)에서 발생된 신호를 분주하고 파형정형하여 상기 D형 플립플롭(DF1, DF2)의 리셋트신호(R)와 업/다운카운터(15)의 클럭신호(CK)를 발생시키게 됨을 특징으로 하는 레이저디스크의 자동이득조절시스템.2. The peak detector of claim 1, wherein the peak detector 14 comprises an oragate (OR 1 , OR 2 ), a D flip-flop (DF 1 , DF 2 ), a divider (FD), and a waveform modifier (WS). A signal generated by the adjustment signal generator 16 is divided by the FD and the waveform shaper WS, and the waveform is shaped to reset the signal R and the up / down counter of the D flip-flops DF 1 and DF 2 . And a clock signal (CK) of (15). 제1항에 있어서, 루우프의 이득조정이 완료되면, 마이콤의 자동이득조절정지신호(GS)로 업/다운카운터(15)의 카운팅동작을 정지시켜 그 상태로 업/다운카운터(15)를 유지시켜 주는 것을 특징으로 하는 레이저 디스크의 자동이득조절시스템.2. The method according to claim 1, wherein when the gain adjustment of the loop is completed, the counting operation of the up / down counter 15 is stopped by the automatic gain control stop signal GS of the microcomputer and the up / down counter 15 is maintained in that state. Automatic gain control system of the laser disk, characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910024393A 1991-12-26 1991-12-26 Automatic gain control system for laser disk player KR940003387B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910024393A KR940003387B1 (en) 1991-12-26 1991-12-26 Automatic gain control system for laser disk player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910024393A KR940003387B1 (en) 1991-12-26 1991-12-26 Automatic gain control system for laser disk player

Publications (2)

Publication Number Publication Date
KR930014467A true KR930014467A (en) 1993-07-23
KR940003387B1 KR940003387B1 (en) 1994-04-21

Family

ID=19326030

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910024393A KR940003387B1 (en) 1991-12-26 1991-12-26 Automatic gain control system for laser disk player

Country Status (1)

Country Link
KR (1) KR940003387B1 (en)

Also Published As

Publication number Publication date
KR940003387B1 (en) 1994-04-21

Similar Documents

Publication Publication Date Title
US4580278A (en) Read clock producing system
ATE191307T1 (en) DISTINCTION BETWEEN INFORMATION AND NOISE IN A COMMUNICATION SIGNAL
US4769613A (en) Digitalized amplitude detection circuit for analog input signal
JPH01135082A (en) Semiconductor laser controller
KR930014467A (en) Automatic Gain Control System of Laser Disc
NO883325D0 (en) DIGITAL FASELOAD WIRE CLOCK OUTPUT FOR BIPOLAR SIGNALS
EP1049090A4 (en) Multi-rate clock generator and multi-rate digital data reproducing device
JP2000221254A (en) Method and apparatus for addition of jitter
DK531586D0 (en) CIRCUIT DEVICE FOR A AUDIO AND / OR VIDEO PLAYER PLAYER
ATE180363T1 (en) TRANSITION SIGNALS DISCRIMINATING SIGNAL GENERATOR FOR HARMONIC SIGNALS
JPH0557774B2 (en)
KR930014327A (en) Recording / Playback Device of Optical Disc
KR820001853B1 (en) Digital servo system for rotating nember
KR970050758A (en) CDP automatic focus balance circuit
JPS57164443A (en) Optical recording medium and information reproducing device
KR910008669A (en) Track Jump Control Circuit
JPS57133783A (en) Slice level setting system
KR940006400Y1 (en) Break control circuit for optical disk player
KR970050375A (en) Automatic focusing error control device for compact disc players
RU1827648C (en) Device for playback and monitoring of amplitude modulation factor of magnetic recording medium playback signal
JPS61255119A (en) Optical receiver
JPS60163528A (en) Data waveform shaping circuit
KR940007622B1 (en) Clockwise or count clockwise transfer control circuit of drum at search
KR970012565A (en) Servo Loop Gain Control Circuit of Optical Disc Player
SU661597A1 (en) Device for magnetic recording and reproducing of time signals

Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20100413

Year of fee payment: 17

LAPS Lapse due to unpaid annual fee