DE3786658D1 - Farbtraegeroszillator mit schutz gegen synchronisierung durch ein seitenband. - Google Patents
Farbtraegeroszillator mit schutz gegen synchronisierung durch ein seitenband.Info
- Publication number
- DE3786658D1 DE3786658D1 DE8787309648T DE3786658T DE3786658D1 DE 3786658 D1 DE3786658 D1 DE 3786658D1 DE 8787309648 T DE8787309648 T DE 8787309648T DE 3786658 T DE3786658 T DE 3786658T DE 3786658 D1 DE3786658 D1 DE 3786658D1
- Authority
- DE
- Germany
- Prior art keywords
- color
- protection against
- side band
- carrier oscillator
- against synchronization
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/44—Colour synchronisation
- H04N9/45—Generation or recovery of colour sub-carriers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
- H03L7/12—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a scanning signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L2207/00—Indexing scheme relating to automatic control of frequency or phase and to synchronisation
- H03L2207/14—Preventing false-lock or pseudo-lock of the PLL
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Processing Of Color Television Signals (AREA)
- Synchronizing For Television (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/020,984 US4769691A (en) | 1987-03-02 | 1987-03-02 | Burst locked oscillator with side-lock protection |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3786658D1 true DE3786658D1 (de) | 1993-08-26 |
DE3786658T2 DE3786658T2 (de) | 1994-02-17 |
Family
ID=21801692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE87309648T Expired - Fee Related DE3786658T2 (de) | 1987-03-02 | 1987-10-30 | Farbträgeroszillator mit Schutz gegen Synchronisierung durch ein Seitenband. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4769691A (de) |
EP (1) | EP0280809B1 (de) |
JP (1) | JP2649229B2 (de) |
KR (1) | KR970009066B1 (de) |
DE (1) | DE3786658T2 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2896901B2 (ja) * | 1989-05-26 | 1999-05-31 | アールシーエー トムソン ライセンシング コーポレーション | 位相固定された副搬送波再生回路 |
JPH0787525A (ja) * | 1993-09-13 | 1995-03-31 | Matsushita Electric Ind Co Ltd | 自動位相制御装置 |
US5767915A (en) * | 1995-12-12 | 1998-06-16 | Trw Inc. | Digital color burst phase switch for pal video systems |
US6646964B1 (en) * | 2000-03-27 | 2003-11-11 | Hewlett-Packard Development Company, L.P. | Harmonic correction in phase-locked loops |
JP4648719B2 (ja) * | 2005-02-04 | 2011-03-09 | リーダー電子株式会社 | ログ機能及び警告機能を持つゲンロック装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3578902A (en) * | 1968-08-28 | 1971-05-18 | Rca Corp | Apparatus for synchronized generation of a signal from a composite color video signal subjected to signal perturbations |
US3532819A (en) * | 1968-10-03 | 1970-10-06 | T O Paine | Burst synchronization detection system |
JPS5469018A (en) * | 1977-11-11 | 1979-06-02 | Sony Corp | Color demodulator circuit |
JPS5835428B2 (ja) * | 1978-12-27 | 1983-08-02 | 日本電気株式会社 | 搬送波再生回路 |
US4366451A (en) * | 1979-10-19 | 1982-12-28 | Leonard Kowal | Chrominance subcarrier regeneration network |
JPS5717292A (en) * | 1980-07-04 | 1982-01-28 | Hitachi Ltd | Chroma signal processing reproducing device |
DE3136522A1 (de) * | 1981-09-15 | 1983-03-24 | Siemens AG, 1000 Berlin und 8000 München | Verfahren und anordnung zur digitalen regelung der phase des systemtaktes eines digitalen signalverarbeitungssystems |
US4456884A (en) * | 1981-11-16 | 1984-06-26 | Sri International | Phase-lock loop and Miller decoder employing the same |
US4500909A (en) * | 1982-01-21 | 1985-02-19 | Victor Company Of Japan, Ltd. | Synchronizing signal generating apparatus |
FR2538656B1 (fr) * | 1982-12-23 | 1985-06-07 | Thomson Csf | Procede et circuit d'asservissement en frequence et en phase d'un oscillateur local en television |
US4544943A (en) * | 1983-12-02 | 1985-10-01 | Sony Corp | Stabilized color television subcarrier regenerator circuit |
US4617520A (en) * | 1984-01-03 | 1986-10-14 | Motorola, Inc. | Digital lock detector for a phase-locked loop |
-
1987
- 1987-03-02 US US07/020,984 patent/US4769691A/en not_active Expired - Lifetime
- 1987-10-30 EP EP87309648A patent/EP0280809B1/de not_active Expired - Lifetime
- 1987-10-30 DE DE87309648T patent/DE3786658T2/de not_active Expired - Fee Related
- 1987-10-30 JP JP62273665A patent/JP2649229B2/ja not_active Expired - Lifetime
- 1987-10-31 KR KR1019870012200A patent/KR970009066B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR880012103A (ko) | 1988-11-03 |
JP2649229B2 (ja) | 1997-09-03 |
KR970009066B1 (ko) | 1997-06-03 |
EP0280809B1 (de) | 1993-07-21 |
US4769691A (en) | 1988-09-06 |
DE3786658T2 (de) | 1994-02-17 |
JPS63217890A (ja) | 1988-09-09 |
EP0280809A1 (de) | 1988-09-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8328 | Change in the person/name/address of the agent |
Free format text: WOERDEMANN, H., DIPL.-ING., PAT.-ANW., 31787 HAMELN |
|
8320 | Willingness to grant licences declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |