TW320796B - - Google Patents
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- Publication number
- TW320796B TW320796B TW085111194A TW85111194A TW320796B TW 320796 B TW320796 B TW 320796B TW 085111194 A TW085111194 A TW 085111194A TW 85111194 A TW85111194 A TW 85111194A TW 320796 B TW320796 B TW 320796B
- Authority
- TW
- Taiwan
- Prior art keywords
- counter
- comparison result
- count value
- circuit
- phase
- Prior art date
Links
- 230000001360 synchronised effect Effects 0.000 claims description 17
- 238000010586 diagram Methods 0.000 description 12
- 230000010355 oscillation Effects 0.000 description 4
- 101100518501 Mus musculus Spp1 gene Proteins 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000010363 phase shift Effects 0.000 description 3
- 241000218691 Cupressaceae Species 0.000 description 1
- 241000283986 Lepus Species 0.000 description 1
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
- H03L7/089—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses
-
- 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
- H03L7/107—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S331/00—Oscillators
- Y10S331/02—Phase locked loop having lock indicating or detecting means
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24204495A JP3538994B2 (ja) | 1995-09-20 | 1995-09-20 | ディジタルカウンタおよびディジタルｐｌｌ回路 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW320796B true TW320796B (OSRAM) | 1997-11-21 |
Family
ID=17083440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW085111194A TW320796B (OSRAM) | 1995-09-20 | 1996-09-13 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5896428A (OSRAM) |
| JP (1) | JP3538994B2 (OSRAM) |
| KR (1) | KR100414864B1 (OSRAM) |
| TW (1) | TW320796B (OSRAM) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW429686B (en) * | 1998-05-12 | 2001-04-11 | Mitsubishi Electric Corp | Circuit and method for generating clock |
| DE19850567C2 (de) * | 1998-11-02 | 2001-02-15 | Wandel & Goltermann Man Holdin | Verwendung einer Schaltungsanordnung und Vorrichtung zur Messung der Signalgüte eines digitalen Nachrichtenübertragungssystems |
| US6760394B1 (en) * | 1999-08-11 | 2004-07-06 | Broadcom Corporation | CMOS lock detect with double protection |
| US6708026B1 (en) * | 2000-01-11 | 2004-03-16 | Ericsson Inc. | Division based local oscillator for frequency synthesis |
| KR100459854B1 (ko) * | 2000-12-22 | 2004-12-03 | 엘지전자 주식회사 | 씨피유의 연산 처리 방법 |
| GB0111300D0 (en) * | 2001-05-09 | 2001-06-27 | Mitel Knowledge Corp | Method and apparatus for synchronizing slave network node to master network node |
| CN100349378C (zh) * | 2002-04-19 | 2007-11-14 | 陈为怀 | 网同步可集成从时钟锁相环 |
| US7151399B2 (en) * | 2004-02-02 | 2006-12-19 | Toshiba America Electronic Components, Inc. | System and method for generating multiple clock signals |
| TWI274474B (en) * | 2005-01-06 | 2007-02-21 | Univ Nat Sun Yat Sen | Phase-locked loop circuit and a method thereof |
| US20060187899A1 (en) * | 2005-02-02 | 2006-08-24 | Gemtek Systems, Inc. | System of providing communication service via client representatives and the method of the same |
| US8369452B2 (en) * | 2007-12-07 | 2013-02-05 | Micron Technology, Inc. | Majority detector apparatus, systems, and methods |
| KR101231743B1 (ko) * | 2009-04-24 | 2013-02-08 | 한국전자통신연구원 | 디지털 락 검출장치 및 이를 포함하는 주파수 합성기 |
| EP2659589A4 (en) * | 2010-12-29 | 2015-01-21 | Ericsson Telefon Ab L M | FREQUENCY PHASE DETECTION METHOD |
| US10727847B1 (en) | 2019-02-07 | 2020-07-28 | International Business Machines Corporation | Digital control of a voltage controlled oscillator frequency |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4272729A (en) * | 1979-05-10 | 1981-06-09 | Harris Corporation | Automatic pretuning of a voltage controlled oscillator in a frequency synthesizer using successive approximation |
| JPH0744445B2 (ja) * | 1983-05-31 | 1995-05-15 | 松下電器産業株式会社 | デジタルｐｌｌ回路 |
| JP3329088B2 (ja) * | 1994-02-16 | 2002-09-30 | 株式会社デンソー | パルス発生装置，周波数可変発振装置及びｐｌｌ装置 |
| JP2771464B2 (ja) * | 1994-09-29 | 1998-07-02 | 日本電気アイシーマイコンシステム株式会社 | ディジタルｐｌｌ回路 |
| US5651036A (en) * | 1996-05-09 | 1997-07-22 | National Semiconductor Corporation | Third harmonic suppression scheme for a wave used in a phase-to-frequency converter |
-
1995
- 1995-09-20 JP JP24204495A patent/JP3538994B2/ja not_active Expired - Fee Related
-
1996
- 1996-09-06 KR KR1019960038662A patent/KR100414864B1/ko not_active Expired - Fee Related
- 1996-09-13 TW TW085111194A patent/TW320796B/zh active
- 1996-09-17 US US08/714,275 patent/US5896428A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0993120A (ja) | 1997-04-04 |
| US5896428A (en) | 1999-04-20 |
| KR970019097A (ko) | 1997-04-30 |
| KR100414864B1 (ko) | 2004-03-24 |
| JP3538994B2 (ja) | 2004-06-14 |
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