KR0124314B1 - 동기신호검출회로 - Google Patents
동기신호검출회로Info
- Publication number
- KR0124314B1 KR0124314B1 KR1019880017176A KR880017176A KR0124314B1 KR 0124314 B1 KR0124314 B1 KR 0124314B1 KR 1019880017176 A KR1019880017176 A KR 1019880017176A KR 880017176 A KR880017176 A KR 880017176A KR 0124314 B1 KR0124314 B1 KR 0124314B1
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- circuit
- synchronization signal
- gate
- counter
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 62
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 23
- 238000003780 insertion Methods 0.000 claims abstract description 28
- 230000037431 insertion Effects 0.000 claims abstract description 28
- 230000003287 optical effect Effects 0.000 description 8
- 238000000605 extraction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005236 sound signal Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Images
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
- G11B20/14—Digital recording or reproducing using self-clocking codes
-
- 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
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
- G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
- G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
- G11B27/3063—Subcodes
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Synchronizing For Television (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Details Of Television Scanning (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
Description
Claims (2)
- 재생된 동기(同期) 신호(SYNC)와 윈도신호(LMASK)가 공급되는 게이트회로(35)와, 상기 게이트회로로부터의 출력신호(MSYNC)와 동기하도록 구성되는 동시에, 고정의 제1클록신호(FIC)를 계수하여, 삽입동기신호(ISYNC)와 윈도신호(LMASK)를 발생하는 카운터수단(36,37,40,41)과, 상기 게이트회로로부터의 출력신호 또는 삽입동기신호에 따라서 동기검출신호(RESET)를 발생하는 수단(46)으로 이루어지는 동기신호검출회로에 있어서, 상기 카운터수단(36,37,40,41)은 재생신호로부터 형성된 제2클록신호(PLC)를 계수하여, 삽입동기신호(ISYNC)를 발생하는 제1카운터회로(36,40)와, 제1클록신호(FIC)를 계수하여, 윈도신호(LMASK)를 발생하는 제2카운터회로(37,41)를 구비하는 것을 특징으로 하는 동기신호검출회로.
- 재생된 동기신호(SYNC)와 윈도신호(LMASK)가 공급되는 게이트회로(35)와, 상기 게이트회로로부터의 출력신호(MSYNC)와 동기하도록 구성되는 동시에, 클록신호(FIC)를 계수하여 삽입동기신호(ISYNC)와 윈도신호(LMASK)를 발생하는 제1카운터수단(36,37,40,41)과, 상기 게이트회로로부터의 출력신호 또는 삽입동기신호에 따라서 동기검출신호(RESET)를 발생하는 수단(46)으로 이루어지는 동기신호검출회로에 있어서, 상기 게이트회로의 출력신호와 삽입동기신호간의 일치 또는 불일치를 각각 나타내는 일치신호(GDSY)와 불일치신호(NGSY)를 출력하는 수단(42,43,44)과, 일치신호를 계수하는 제2카운터수단(48)과, 불일치신호를 계수하는 제3카운터수단(49)과, 상기 제2 및 제3카운터수단의 계수치에 따라서 윈도신호의 주기를 제어하는 수단(50,51,52,53,54,56)을 구비하는 것을 특징으로 하는 동기신호검출회로.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-325669 | 1987-12-23 | ||
JP62325669A JP2712212B2 (ja) | 1987-12-23 | 1987-12-23 | 同期信号の検出及び保護回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR890010810A KR890010810A (ko) | 1989-08-10 |
KR0124314B1 true KR0124314B1 (ko) | 1997-11-28 |
Family
ID=18179393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019880017176A Expired - Lifetime KR0124314B1 (ko) | 1987-12-23 | 1988-12-22 | 동기신호검출회로 |
Country Status (8)
Country | Link |
---|---|
US (1) | US4979192A (ko) |
EP (1) | EP0322782B1 (ko) |
JP (1) | JP2712212B2 (ko) |
KR (1) | KR0124314B1 (ko) |
AT (1) | ATE103093T1 (ko) |
AU (1) | AU629522B2 (ko) |
DE (1) | DE3888498T2 (ko) |
HK (1) | HK181995A (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100555464B1 (ko) * | 1999-02-08 | 2006-03-03 | 삼성전자주식회사 | 광학시스템의 프레임 동기 신호 삽입 장치 및 방법 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03173975A (ja) * | 1989-09-20 | 1991-07-29 | Canon Inc | 信号抽出方法および信号抽出装置 |
JPH03185684A (ja) * | 1989-12-14 | 1991-08-13 | Asaka Co Ltd | マルチビーム光ディスク装置の同期信号検出回路 |
JP2606090B2 (ja) * | 1993-07-14 | 1997-04-30 | 日本電気株式会社 | 光学的情報制御装置 |
AU668448B2 (en) * | 1994-01-25 | 1996-05-02 | Nec Corporation | Time-division multiplex communication transmission apparatus |
CN1040824C (zh) * | 1994-07-08 | 1998-11-18 | 日本胜利株式会社 | 数字调制/解调方法和设备 |
JP2972657B2 (ja) * | 1997-06-20 | 1999-11-08 | 山形日本電気株式会社 | Efm信号のフレーム周期検出回路及びefm信号再生用ビット同期クロック信号の周波数制御方法 |
KR100287141B1 (ko) * | 1997-11-21 | 2001-04-16 | 윤종용 | 비정상동기신호제거방법 |
KR100258332B1 (ko) * | 1997-12-26 | 2000-06-01 | 윤종용 | 싱크검출장치와 그에 따른 광 디스크 재생장치 |
US6087867A (en) * | 1998-05-29 | 2000-07-11 | Lsi Logic Corporation | Transaction control circuit for synchronizing transactions across asynchronous clock domains |
US6320881B1 (en) * | 1998-06-25 | 2001-11-20 | Cypress Semiconductor Corp. | Method, architecture and circuit for locking a data transmission frame |
JP2004007267A (ja) * | 2002-05-31 | 2004-01-08 | Panasonic Communications Co Ltd | Dslモデム装置及びdsl通信における通信制御方法 |
JP2004056432A (ja) * | 2002-07-19 | 2004-02-19 | Sony Corp | 同期信号検出装置、同期信号検出方法 |
US7372928B1 (en) * | 2002-11-15 | 2008-05-13 | Cypress Semiconductor Corporation | Method and system of cycle slip framing in a deserializer |
KR100524954B1 (ko) * | 2003-03-17 | 2005-11-01 | 삼성전자주식회사 | 광 디스크 시스템에서 데이터 복조 에러를 감소시키는프레임 싱크 신호 검출 장치 및 검출 방법 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3159812A (en) * | 1962-03-26 | 1964-12-01 | Bell Telephone Labor Inc | Frame synchronization of pulse transmission systems |
US4611335A (en) * | 1981-09-30 | 1986-09-09 | Hitachi, Ltd. | Digital data synchronizing circuit |
CA1212729A (en) * | 1981-12-08 | 1986-10-14 | Hiroshi Ogawa | Digital signal detecting and compensating circuit with adjustable window signal |
US4453260A (en) * | 1982-06-15 | 1984-06-05 | Tokyo Shibaura Denki Kabushiki Kaisha | Synchronizing circuit for detecting and interpolating sync signals contained in digital signal |
JPS6083264A (ja) * | 1983-10-14 | 1985-05-11 | Nippon Gakki Seizo Kk | フレ−ム同期したカウンタ回路 |
JPS60106073A (ja) * | 1983-11-14 | 1985-06-11 | Toshiba Corp | 記録再生装置 |
JPH0640419B2 (ja) * | 1985-05-28 | 1994-05-25 | ソニー株式会社 | 同期信号の検出回路 |
US4872155A (en) * | 1987-03-13 | 1989-10-03 | Pioneer Electronic Corporation | Clock generator circuit and a synchronizing signal detection method in a sampled format system and a phase comparator circuit suited for generation of the clock |
JPH0538441Y2 (ko) * | 1987-07-29 | 1993-09-29 |
-
1987
- 1987-12-23 JP JP62325669A patent/JP2712212B2/ja not_active Expired - Lifetime
-
1988
- 1988-12-19 AU AU27037/88A patent/AU629522B2/en not_active Expired
- 1988-12-20 US US07/286,714 patent/US4979192A/en not_active Expired - Lifetime
- 1988-12-22 KR KR1019880017176A patent/KR0124314B1/ko not_active Expired - Lifetime
- 1988-12-23 AT AT88121576T patent/ATE103093T1/de not_active IP Right Cessation
- 1988-12-23 DE DE3888498T patent/DE3888498T2/de not_active Expired - Lifetime
- 1988-12-23 EP EP88121576A patent/EP0322782B1/en not_active Expired - Lifetime
-
1995
- 1995-11-30 HK HK181995A patent/HK181995A/xx not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100555464B1 (ko) * | 1999-02-08 | 2006-03-03 | 삼성전자주식회사 | 광학시스템의 프레임 동기 신호 삽입 장치 및 방법 |
Also Published As
Publication number | Publication date |
---|---|
US4979192A (en) | 1990-12-18 |
EP0322782A3 (en) | 1991-02-27 |
AU2703788A (en) | 1989-06-29 |
EP0322782B1 (en) | 1994-03-16 |
JP2712212B2 (ja) | 1998-02-10 |
HK181995A (en) | 1995-12-08 |
DE3888498T2 (de) | 1994-06-23 |
EP0322782A2 (en) | 1989-07-05 |
DE3888498D1 (de) | 1994-04-21 |
JPH01166375A (ja) | 1989-06-30 |
ATE103093T1 (de) | 1994-04-15 |
KR890010810A (ko) | 1989-08-10 |
AU629522B2 (en) | 1992-10-08 |
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Legal Events
Date | Code | Title | Description |
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PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19881222 |
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PG1501 | Laying open of application | ||
A201 | Request for examination | ||
PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 19931006 Comment text: Request for Examination of Application Patent event code: PA02011R01I Patent event date: 19881222 Comment text: Patent Application |
|
E902 | Notification of reason for refusal | ||
PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 19970421 Patent event code: PE09021S01D |
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E701 | Decision to grant or registration of patent right | ||
PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 19970912 |
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GRNT | Written decision to grant | ||
PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 19970924 Patent event code: PR07011E01D |
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