NO874371L - Fasekontrollkrets. - Google Patents
Fasekontrollkrets.Info
- Publication number
- NO874371L NO874371L NO874371A NO874371A NO874371L NO 874371 L NO874371 L NO 874371L NO 874371 A NO874371 A NO 874371A NO 874371 A NO874371 A NO 874371A NO 874371 L NO874371 L NO 874371L
- Authority
- NO
- Norway
- Prior art keywords
- frequency
- input
- regulating
- output
- quartz crystal
- Prior art date
Links
Classifications
-
- 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
- H04L7/0331—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 with a digital phase-locked loop [PLL] processing binary samples, e.g. add/subtract logic for correction of receiver clock
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Optical Communication System (AREA)
- Networks Using Active Elements (AREA)
- Amplifiers (AREA)
- Manipulation Of Pulses (AREA)
Abstract
En fasekontrollkrets (PLL) som omformer et intervalltaktsignal på en inngang. (1) til et intervallfritt taktsignal med lav dirring på en utgang (8), omfatter en fasediskriminator (3) med to like frekvensdelere (2, 9) og med en kontroll- og oscillatorkrets (7). Denne omfatter en kvartsoscillator (15) som leverer en hjelpefrekvens (FH), og en summeringsteller (11) som genererer et ytterligere signal med en frekvens (FX). En kontrollinngang på summeringstelleren (11) er derfor forbundet med utgangen (6) på fase-diskriminatoren (3) og en annen med utgangen på kvartsoscillatoren (15). Hjelpefrekvensen (FH) og den ytterligere frekvens (FX) blir hver gitt til en inngang på en eksklusiv-ELLER-port (13) som adderer disse ved regelmessig ompoling. En frekvensdeler (12) genererer fra denne summeringsfrekvens (FH+FX) frekvensen (FA) for taktsig-nalet. En rekke fasekontrollkretser (PLL) kan arbeide sammen med en felles kvartsoscillator (15). Disse er av særlig interesse for digitalsignal-multipleksapparater.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3635641 | 1986-10-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
NO874371D0 NO874371D0 (no) | 1987-10-20 |
NO874371L true NO874371L (no) | 1988-04-21 |
Family
ID=6312064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO874371A NO874371L (no) | 1986-10-20 | 1987-10-20 | Fasekontrollkrets. |
Country Status (11)
Country | Link |
---|---|
US (1) | US4820994A (no) |
EP (1) | EP0266588B1 (no) |
JP (1) | JPS63109609A (no) |
AT (1) | ATE64049T1 (no) |
AU (1) | AU579962B2 (no) |
BR (1) | BR8705563A (no) |
CA (1) | CA1273413A (no) |
DE (1) | DE3770410D1 (no) |
ES (1) | ES2022256B3 (no) |
GR (1) | GR3002111T3 (no) |
NO (1) | NO874371L (no) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK163397C (da) * | 1988-06-24 | 1992-07-13 | Nordiske Kabel Traad | Fremgangsmaade ved regulering af en taktgenerators fase i forhold til et datasignal |
JPH0273722A (ja) * | 1988-09-09 | 1990-03-13 | Nec Corp | Pll方式オフセット周波数合成回路 |
AR241983A1 (es) * | 1989-03-23 | 1993-01-29 | Siemens Ag | Disposicion de circuito para transformar una secuencia discontinua de pulsos de reloj de entrada en una secuencia continua de pulsos de reloj de salida con la misma cantidad de pulsos. |
SE466474B (sv) * | 1990-07-10 | 1992-02-17 | Ericsson Telefon Ab L M | Faslaasningskrets foer jitterreducering i digitalt multiplexsystem |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE786798A (fr) * | 1971-07-29 | 1973-01-29 | Int Standard Electric Corp | Boucle d'asservissement en phase pour demultiplexeur de signauxmic |
US3883817A (en) * | 1973-08-20 | 1975-05-13 | Nasa | Digital phase-locked loop |
US4019153A (en) * | 1974-10-07 | 1977-04-19 | The Charles Stark Draper Laboratory, Inc. | Digital phase-locked loop filter |
US4242639A (en) * | 1978-09-05 | 1980-12-30 | Ncr Corporation | Digital phase lock circuit |
DE2925391A1 (de) * | 1979-06-21 | 1981-01-15 | Hertz Inst Heinrich | Verfahren zur uebermittlung von zeitmultiplexsignalen in einem digitalen nachrichtennetz |
AU534342B2 (en) * | 1980-02-13 | 1984-01-19 | Motorola, Inc. | An improved frequency synthesizer using multiple dual modules prescalers |
DE3681075D1 (de) * | 1985-06-10 | 1991-10-02 | Siemens Ag | Taktregenerator. |
US4679004A (en) * | 1985-09-03 | 1987-07-07 | Nec Corporation | Frequency synthesizer of a phase-locked type with a sampling circuit |
-
1987
- 1987-10-07 US US07/105,670 patent/US4820994A/en not_active Expired - Fee Related
- 1987-10-13 ES ES87114958T patent/ES2022256B3/es not_active Expired - Lifetime
- 1987-10-13 AT AT87114958T patent/ATE64049T1/de not_active IP Right Cessation
- 1987-10-13 EP EP87114958A patent/EP0266588B1/de not_active Expired - Lifetime
- 1987-10-13 DE DE8787114958T patent/DE3770410D1/de not_active Expired - Fee Related
- 1987-10-16 CA CA000549458A patent/CA1273413A/en not_active Expired - Fee Related
- 1987-10-19 AU AU79906/87A patent/AU579962B2/en not_active Ceased
- 1987-10-19 JP JP62261945A patent/JPS63109609A/ja active Granted
- 1987-10-19 BR BR8705563A patent/BR8705563A/pt not_active IP Right Cessation
- 1987-10-20 NO NO874371A patent/NO874371L/no unknown
-
1991
- 1991-06-12 GR GR90401180T patent/GR3002111T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
US4820994A (en) | 1989-04-11 |
AU7990687A (en) | 1988-04-21 |
NO874371D0 (no) | 1987-10-20 |
AU579962B2 (en) | 1988-12-15 |
EP0266588B1 (de) | 1991-05-29 |
JPS63109609A (ja) | 1988-05-14 |
ES2022256B3 (es) | 1991-12-01 |
BR8705563A (pt) | 1988-05-24 |
JPH0445011B2 (no) | 1992-07-23 |
DE3770410D1 (de) | 1991-07-04 |
ATE64049T1 (de) | 1991-06-15 |
CA1273413A (en) | 1990-08-28 |
GR3002111T3 (en) | 1992-12-30 |
EP0266588A1 (de) | 1988-05-11 |
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