KR100308603B1 - 에러 일관성 검출기를 갖는 위상 동기 루프 - Google Patents
에러 일관성 검출기를 갖는 위상 동기 루프 Download PDFInfo
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- KR100308603B1 KR100308603B1 KR1019950704574A KR19950704574A KR100308603B1 KR 100308603 B1 KR100308603 B1 KR 100308603B1 KR 1019950704574 A KR1019950704574 A KR 1019950704574A KR 19950704574 A KR19950704574 A KR 19950704574A KR 100308603 B1 KR100308603 B1 KR 100308603B1
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/20—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator
- H03B5/24—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator active element in amplifier being semiconductor device
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/20—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator
-
- 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
- H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
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- 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
- H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
- H03L7/0991—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider
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- 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
- H03L7/113—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using frequency discriminator
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- 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
- H03L7/14—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
- H04N5/126—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising whereby the synchronisation signal indirectly commands a frequency generator
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
- H04N7/122—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal involving expansion and subsequent compression of a signal segment, e.g. a frame, a line
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
- H03B2200/003—Circuit elements of oscillators
- H03B2200/0038—Circuit elements of oscillators including a current mirror
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
- H03B2200/003—Circuit elements of oscillators
- H03B2200/005—Circuit elements of oscillators including measures to switch a capacitor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
- H03B2200/003—Circuit elements of oscillators
- H03B2200/0058—Circuit elements of oscillators with particular transconductance characteristics, e.g. an operational transconductance amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
- H03B2201/02—Varying the frequency of the oscillations by electronic means
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
- H03B2201/02—Varying the frequency of the oscillations by electronic means
- H03B2201/025—Varying the frequency of the oscillations by electronic means the means being an electronic switch for switching in or out oscillator elements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
- H03B2201/02—Varying the frequency of the oscillations by electronic means
- H03B2201/025—Varying the frequency of the oscillations by electronic means the means being an electronic switch for switching in or out oscillator elements
- H03B2201/0266—Varying the frequency of the oscillations by electronic means the means being an electronic switch for switching in or out oscillator elements the means comprising a transistor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J2200/00—Indexing scheme relating to tuning resonant circuits and selecting resonant circuits
- H03J2200/10—Tuning of a resonator by means of digitally controlled capacitor bank
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Synchronizing For Television (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
Description
Claims (6)
- 동기 신호에 동기되는 발진 신호를 발생하는 장치에 있어서, 상기 발진 신호를 발생하는 제어 가능한 발진기와; 주사 주파수에 관련된 주파수의 상기 동기 신호의 소스와; 상기 발진 신호 및 동기 신호에 응답하여, 이들 신호간의 사이클 관련 에러를 나타내며 상기 발진기의 제어 입력단에 결합되어 부귀환 루프 방법으로상기 사이클 관련 에러를 보정하도록 상기 발진 신호의 상기 사이클을 보정하는 제1의 신호를 발생하는 수단과; 상기 제1의 신호 발생 수단에 결합되어, 상기 동기 신호의 소정의 주기쌍에서 측정되는 상기 에러를 비교하고, 상기 주기쌍중 하나에서 측정되는 상기 에러와 상기 주기쌍중 나머지에서 측정되는 상기 에러간의 차가 제1의 값보다 크면 상기 발진 신호의 보정을 디스에이블하는 수단을 포함하는 것을 특징으로 하는 발진 신호 발생 장치.
- 제1항에 있어서, 상기 제1의 신호는 주파수 에러를 나타내는 것을 특징으로 하는 발진 신호 발생 장치.
- 제2항에 있어서, 상기 발진 신호와 동기 신호간의 상기 주파수 에러가 제2의 값을 초과하고 상기 차가 상기 제1의 값보다 작으면 상기 발진 신호 발생 장치는 미세한 주파수 에러 보정 모드에서 동작하며, 상기 주파수 에러가 상기 제2의 값보다 작으면 상기 발진 신호 발생 장치는 위상 에러 보정 모드에서 동작하는 것을 특징으로 하는 발진 신호 발생 장치.
- 제1항에 있어서, 상기 제1의 신호 발생 수단은 상기 발진 신호와 동기 신호간의 위상 에러를 나타내는 신호를 발생하는 위상 검출기를 포함하고, 상기 발진 신호 보정의 디스에이블 수단은 상기 주기쌍의 제1의 주기의 주파수 에러와 상기 주기쌍의 제2의 주기의 주파수 에러간의 차를 측정하는 수단을 포함하며, 상기 위상 에러가 제2의 값을 초과하고 상기 에러간의 차가 일관성 있는 상기 주파수 에러를 나타내면 상기 발진 신호 발생 장치는 개략적인 위상 에러 보정 모드에서 동작하는 것을 특징으로 하는 발진 신호 발생 장치.
- 제1항에 있어서, 상기 에러 비교 수단은 제1의 수평 라인 주기동안 측정되는 에러와 제2의 수평 라인 주기동안 측정되는 에러를 비교하는 것을 특징으로 하는 발진 신호 발생 장치.
- 제1항에 있어서, 상기 에러간의 차가 상기 에러의 비일관성을 나타내는 것을 특징으로 하는 발진 신호 발생 장치.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9308141.2 | 1993-04-20 | ||
GB939308141A GB9308141D0 (en) | 1993-04-20 | 1993-04-20 | A cmos pll system for tv line-locked clock generation |
GB939311560A GB9311560D0 (en) | 1993-06-04 | 1993-06-04 | A phase lock loop with fine and coarse frequency and phase error correction |
GB9311560.8 | 1993-06-04 | ||
PCT/US1994/004291 WO1994024768A1 (en) | 1993-04-20 | 1994-04-19 | A phase lock loop with error consistency detector |
Publications (1)
Publication Number | Publication Date |
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KR100308603B1 true KR100308603B1 (ko) | 2001-11-30 |
Family
ID=26302782
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950704574A Expired - Fee Related KR100308603B1 (ko) | 1993-04-20 | 1994-04-19 | 에러 일관성 검출기를 갖는 위상 동기 루프 |
KR1019950704575A Expired - Fee Related KR100308604B1 (ko) | 1993-04-20 | 1994-04-19 | 수직 귀선소거시 휴지 동작 모드를 갖는 위상 동기 루프 |
KR1019950704576A Expired - Fee Related KR100308601B1 (ko) | 1993-04-20 | 1994-04-19 | 교호 주기에서 에러를 측정 및 보정하는 위상 동기 루프 |
KR1019950704577A Expired - Fee Related KR100308602B1 (ko) | 1993-04-20 | 1994-04-19 | 스위치드 리액티브 소자를 갖는 발진기 |
Family Applications After (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950704575A Expired - Fee Related KR100308604B1 (ko) | 1993-04-20 | 1994-04-19 | 수직 귀선소거시 휴지 동작 모드를 갖는 위상 동기 루프 |
KR1019950704576A Expired - Fee Related KR100308601B1 (ko) | 1993-04-20 | 1994-04-19 | 교호 주기에서 에러를 측정 및 보정하는 위상 동기 루프 |
KR1019950704577A Expired - Fee Related KR100308602B1 (ko) | 1993-04-20 | 1994-04-19 | 스위치드 리액티브 소자를 갖는 발진기 |
Country Status (8)
Country | Link |
---|---|
EP (4) | EP0695479B1 (ko) |
JP (4) | JP3834058B2 (ko) |
KR (4) | KR100308603B1 (ko) |
CN (4) | CN1037563C (ko) |
AU (5) | AU6707994A (ko) |
DE (4) | DE69404979T2 (ko) |
SG (4) | SG73371A1 (ko) |
WO (5) | WO1994026041A2 (ko) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3764785B2 (ja) * | 1996-10-31 | 2006-04-12 | 富士通株式会社 | Pll回路及びその自動調整回路並びに半導体装置 |
WO1999004495A1 (en) * | 1997-07-18 | 1999-01-28 | Microchip Technology Incorporated | Phase-locked loop with phase and frequency comparators |
DE19908071C2 (de) * | 1999-02-12 | 2001-08-02 | Lear Automotive Electronics Gm | Verfahren zur Stabilisierung der Horizontal- und Vertikalsynchronimpulse eines empfangenen Fernsehsignals und Schaltung zur Durchführung des Verfahrens |
RU2260899C1 (ru) * | 2004-04-06 | 2005-09-20 | Новиков Алексей Алексеевич | Транзисторный генератор для резонансных нагрузок |
JP4511288B2 (ja) * | 2004-09-01 | 2010-07-28 | 三洋電機株式会社 | チャージポンプ回路 |
US8004322B2 (en) * | 2005-06-29 | 2011-08-23 | St-Ericsson Sa | Synchronization scheme with adaptive reference frequency correction |
US7414448B2 (en) * | 2006-08-14 | 2008-08-19 | Etron Technology Inc. | Duty cycle correction circuit |
US7917797B2 (en) * | 2008-05-22 | 2011-03-29 | Xilinx, Inc. | Clock generation using a fractional phase detector |
CN103067645B (zh) * | 2012-10-18 | 2016-05-18 | 广东威创视讯科技股份有限公司 | 行同步信号的稳定化处理方法和装置 |
KR101831684B1 (ko) | 2016-11-15 | 2018-02-23 | 성균관대학교산학협력단 | 클록 및 데이터 복원 회로 |
CN109088600B (zh) * | 2018-09-18 | 2024-08-30 | 无锡十顶电子科技有限公司 | 一种用于蜂鸣器的振荡电路 |
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IT986172B (it) * | 1973-06-18 | 1975-01-20 | Fatme Spa | Dispositivo di sincronizzazione automatica per un oscillatore in particolare per impianti di tele comunicazione |
SE7512397L (sv) * | 1974-11-07 | 1976-05-10 | Decca Ltd | Avstengningsanordning for oscillator |
US4531102A (en) * | 1983-02-28 | 1985-07-23 | Gk Technologies, Incorporated | Digital phase lock loop system |
US4498059A (en) * | 1983-06-23 | 1985-02-05 | Gte Automatic Electric Incorporated | Circuit to minimize local clock frequency disturbances when phase locking to a reference clock circuit |
US4580107A (en) * | 1984-06-06 | 1986-04-01 | The United States Of America As Represented By The Secretary Of The Air Force | Phase lock acquisition system having FLL for coarse tuning and PLL for fine tuning |
US4633193A (en) * | 1985-12-02 | 1986-12-30 | At&T Bell Laboratories | Clock circuit synchronizer using a frequency synthesizer controlled by a frequency estimator |
EP0316607B1 (de) * | 1987-11-19 | 1992-12-30 | Siemens Aktiengesellschaft | Monolithisch integrierbarer Phasenschieber-VCO |
US4893087A (en) * | 1988-01-07 | 1990-01-09 | Motorola, Inc. | Low voltage and low power frequency synthesizer |
JP2635667B2 (ja) * | 1988-03-31 | 1997-07-30 | 株式会社東芝 | 自動周波数制御回路 |
US5157355A (en) * | 1988-09-13 | 1992-10-20 | Canon Kabushiki Kaisha | Phase-locked loop device having stability over wide frequency range |
US4876518A (en) * | 1988-12-02 | 1989-10-24 | Motorola Inc. | Frequency tracking system |
US4929918A (en) * | 1989-06-07 | 1990-05-29 | International Business Machines Corporation | Setting and dynamically adjusting VCO free-running frequency at system level |
ATE127969T1 (de) * | 1989-11-10 | 1995-09-15 | Siemens Ag | Integrierbare frequenzvariable oszillatorschaltung. |
US5028885A (en) * | 1990-08-30 | 1991-07-02 | Motorola, Inc. | Phase-locked loop signal generation system with control maintenance |
JPH06169237A (ja) * | 1991-09-13 | 1994-06-14 | Mitsubishi Electric Corp | リングオシレータ回路 |
US5159292A (en) * | 1992-02-25 | 1992-10-27 | Thomson Consumer Electronics, Inc. | Adaptive phase locked loop |
US5191301A (en) * | 1992-05-12 | 1993-03-02 | International Business Machines Corporation | Integrated differential voltage controlled ring oscillator |
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1994
- 1994-04-19 JP JP52436094A patent/JP3834058B2/ja not_active Expired - Fee Related
- 1994-04-19 CN CN94192327A patent/CN1037563C/zh not_active Expired - Fee Related
- 1994-04-19 KR KR1019950704574A patent/KR100308603B1/ko not_active Expired - Fee Related
- 1994-04-19 SG SG1996002416A patent/SG73371A1/en unknown
- 1994-04-19 AU AU67079/94A patent/AU6707994A/en not_active Abandoned
- 1994-04-19 EP EP94914220A patent/EP0695479B1/en not_active Expired - Lifetime
- 1994-04-19 DE DE69404979T patent/DE69404979T2/de not_active Expired - Lifetime
- 1994-04-19 WO PCT/US1994/004304 patent/WO1994026041A2/en active IP Right Grant
- 1994-04-19 KR KR1019950704575A patent/KR100308604B1/ko not_active Expired - Fee Related
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