GB1327001A - Digital control systems - Google Patents

Digital control systems

Info

Publication number
GB1327001A
GB1327001A GB55372A GB55372A GB1327001A GB 1327001 A GB1327001 A GB 1327001A GB 55372 A GB55372 A GB 55372A GB 55372 A GB55372 A GB 55372A GB 1327001 A GB1327001 A GB 1327001A
Authority
GB
United Kingdom
Prior art keywords
phase error
counter
register
phase
signal
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
Application number
GB55372A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1327001A publication Critical patent/GB1327001A/en
Expired legal-status Critical Current

Links

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
    • H03L7/0992—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 comprising a counter or a frequency divider
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
    • H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
GB55372A 1971-02-16 1972-01-06 Digital control systems Expired GB1327001A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11544771A 1971-02-16 1971-02-16

Publications (1)

Publication Number Publication Date
GB1327001A true GB1327001A (en) 1973-08-15

Family

ID=22361459

Family Applications (1)

Application Number Title Priority Date Filing Date
GB55372A Expired GB1327001A (en) 1971-02-16 1972-01-06 Digital control systems

Country Status (8)

Country Link
US (1) US3646452A (enExample)
JP (1) JPS5746255B1 (enExample)
CA (1) CA948284A (enExample)
DE (1) DE2207275A1 (enExample)
FR (1) FR2126009A5 (enExample)
GB (1) GB1327001A (enExample)
IT (1) IT947598B (enExample)
NL (1) NL7200620A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4425646A (en) 1980-07-11 1984-01-10 Tokyo Shibaura Denki Kabushiki Kaisha Input data synchronizing circuit

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849671A (en) * 1972-05-15 1974-11-19 Dynell Elec Phase detector circuitry
US3772600A (en) * 1972-07-14 1973-11-13 Us Air Force Digital bit synchronizer
US3971996A (en) * 1973-01-18 1976-07-27 Hycom Incorporated Phase tracking network
US3968446A (en) * 1973-05-14 1976-07-06 Thomson-Csf Frequency and phase control system
US3878473A (en) * 1974-06-17 1975-04-15 Ibm Digital phase-locked loop generating signed phase values at zero crossings
US4210776A (en) * 1977-08-11 1980-07-01 Harris Corporation Linear digital phase lock loop
DE2743252A1 (de) * 1977-09-26 1979-04-05 Siemens Ag Verfahren zur synchronisierung von in vermittlungsstellen eines fernmeldenetzes vorgesehenen amtstaktgebern
US4320527A (en) * 1978-08-18 1982-03-16 Hitachi, Ltd. Bit synchronizing system for pulse signal transmission
US4242639A (en) * 1978-09-05 1980-12-30 Ncr Corporation Digital phase lock circuit
US4375693A (en) * 1981-04-23 1983-03-01 Ford Aerospace & Communications Corporation Adaptive sweep bit synchronizer
US4375694A (en) * 1981-04-23 1983-03-01 Ford Aerospace & Communications Corp. All rate bit synchronizer with automatic frequency ranging
DE3132972A1 (de) * 1981-08-20 1983-03-24 Siemens AG, 1000 Berlin und 8000 München Regenerator fuer digitale signale mit quantisierter rueckkopplung
JPS5923983A (ja) * 1982-07-30 1984-02-07 Toshiba Corp サンプリングパルス発生回路
EP0134374B1 (fr) * 1983-09-07 1987-12-02 International Business Machines Corporation Horloge à verrouillage de phase
US4667333A (en) * 1983-12-22 1987-05-19 Motorola, Inc. Automatic clock recovery circuit
DE3431419C1 (de) * 1984-08-27 1986-02-13 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Schaltungsanordnung zum Synchronisieren des empfangsseitig erzeugten Taktsignals mit bei digitaler Informationsuebertragung empfangenen Taktsignale in Fernmeldeanlagen
US4855683A (en) * 1987-11-18 1989-08-08 Bell Communications Research, Inc. Digital phase locked loop with bounded jitter
US4847870A (en) * 1987-11-25 1989-07-11 Siemens Transmission Systems, Inc. High resolution digital phase-lock loop circuit
US4890305A (en) * 1988-02-12 1989-12-26 Northern Telecom Limited Dual-tracking phase-locked loop
US5093841A (en) * 1990-01-30 1992-03-03 Nynex Corporation Clock acquisition in a spread spectrum system
FR2680058B1 (fr) * 1991-07-30 1994-01-28 Sgs Thomson Microelectronics Sa Procede et dispositif de synchronisation d'un signal.
US5298867A (en) * 1991-12-13 1994-03-29 Universities Research Association, Inc. Phase-locked loop with controlled phase slippage
US5473274A (en) * 1992-09-14 1995-12-05 Nec America, Inc. Local clock generator
US5442315A (en) * 1993-07-27 1995-08-15 International Business Machines Corporation Bit stream rate asynchronous digital phase-locked loop
JP4829571B2 (ja) 2005-09-09 2011-12-07 株式会社日立製作所 受信装置および測位測距システム
DE102007002302A1 (de) * 2007-01-16 2008-07-24 Austriamicrosystems Ag Anordnung und Verfahren zur Rückgewinnung eines Trägersignals und Demodulationseinrichtung
JP6747569B1 (ja) * 2019-11-21 2020-08-26 富士電機株式会社 電力変換装置、制御方法、および制御プログラム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3562661A (en) * 1969-01-15 1971-02-09 Ibm Digital automatic phase and frequency control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4425646A (en) 1980-07-11 1984-01-10 Tokyo Shibaura Denki Kabushiki Kaisha Input data synchronizing circuit

Also Published As

Publication number Publication date
US3646452A (en) 1972-02-29
CA948284A (en) 1974-05-28
NL7200620A (enExample) 1972-08-18
JPS5746255B1 (enExample) 1982-10-02
FR2126009A5 (enExample) 1972-09-29
DE2207275A1 (de) 1972-09-28
IT947598B (it) 1973-05-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee