ES473448A1 - Dispositivo divisor de frecuencia digital y circuito genera-dor de senales de tiempo de video correspondiente - Google Patents
Dispositivo divisor de frecuencia digital y circuito genera-dor de senales de tiempo de video correspondienteInfo
- Publication number
- ES473448A1 ES473448A1 ES473448A ES473448A ES473448A1 ES 473448 A1 ES473448 A1 ES 473448A1 ES 473448 A ES473448 A ES 473448A ES 473448 A ES473448 A ES 473448A ES 473448 A1 ES473448 A1 ES 473448A1
- Authority
- ES
- Spain
- Prior art keywords
- input
- counter
- divider
- output
- frequency divider
- 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
Links
- 230000001934 delay Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
- H03K23/64—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two
- H03K23/66—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses
- H03K23/662—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses by adding or suppressing pulses
Landscapes
- Processing Of Color Television Signals (AREA)
- Synchronizing For Television (AREA)
Abstract
Dispositivo divisor de frecuencia digital que tiene una entrada de divisor para impulsos eléctricos de entrada y una salida de divisor para una señal eléctrica de salida y que comprende un contador de N posiciones que tiene una entrada de contador y al menos una salida de contador, en donde la entrada del divisor está acoplada a la entrada del contador y la salida del divisor está conectada a la salida del contador, el cual divisor de frecuencia comprende además un conmutador de polaridad de señal y un contador auxiliar de B posiciones d el cual una entrada de contador auxiliar está acoplada a una salida de contador del contador de N posiciones y una salida de contador auxiliar controla el conmutador de polaridad de señal, del cual está acoplada una entrada de conmutador a la entrada del divisor y está acoplada una salida de conmutador a la entrada de contador del contador de N posiciones, caracterizado porque el divisor de frecuencia comprende un circuito de retardo con una entrada de retardo para impulsos eléctricos de retardo, cuyo circuito de retardo retarda la acción del divisor de frecuencia al menos durante un semiperíodo de una secuencia de impulsos eléctricos de entrada en la entrada del divisor para cada impulso de retardo individual.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2742184A DE2742184C2 (de) | 1977-09-20 | 1977-09-20 | Schaltungsanordnung zum Erzeugen eines Schaltsignals entsprechend der Zeilenfrequenz eines Fernsehsignals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES473448A1 true ES473448A1 (es) | 1979-10-16 |
Family
ID=6019364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES473448A Expired ES473448A1 (es) | 1977-09-20 | 1978-09-18 | Dispositivo divisor de frecuencia digital y circuito genera-dor de senales de tiempo de video correspondiente |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4295158A (es) |
| JP (1) | JPS5456759A (es) |
| AU (1) | AU3993978A (es) |
| BE (1) | BE870554A (es) |
| DE (1) | DE2742184C2 (es) |
| ES (1) | ES473448A1 (es) |
| FI (1) | FI782836A7 (es) |
| GB (1) | GB2005882B (es) |
| IT (1) | IT1107868B (es) |
| NL (1) | NL7809224A (es) |
| NZ (1) | NZ188442A (es) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2849797C2 (de) | 1978-11-16 | 1982-03-11 | Siemens AG, 1000 Berlin und 8000 München | Digitale Frequenzteileranordnung |
| JPS55162679A (en) * | 1979-06-06 | 1980-12-18 | Matsushita Electric Ind Co Ltd | Sampling clock reproducing unit |
| JPS5620336A (en) * | 1979-07-28 | 1981-02-25 | Pioneer Electronic Corp | Frequency dividing circuit |
| US4494243A (en) * | 1981-11-26 | 1985-01-15 | Itt Industries, Inc. | Frequency divider presettable to fractional divisors |
| US4500909A (en) * | 1982-01-21 | 1985-02-19 | Victor Company Of Japan, Ltd. | Synchronizing signal generating apparatus |
| JPS58163989A (ja) * | 1982-03-25 | 1983-09-28 | 東芝テック株式会社 | Ｃｒｔデイスプレイ制御装置における同期信号発生回路 |
| GB2138186A (en) * | 1983-04-08 | 1984-10-17 | Philips Electronic Associated | Pulse train divider arrangement |
| US4587664A (en) * | 1983-09-21 | 1986-05-06 | Nec Corporation | High speed frequency divider dividing pulse by a number obtained by dividing an odd number by two |
| US4555793A (en) * | 1983-11-28 | 1985-11-26 | Allied Corporation | Averaging non-integer frequency division apparatus |
| US4837721A (en) * | 1986-06-30 | 1989-06-06 | Itt Defense Communications, A Division Of Itt Corporation | Digital divider with integer and fractional division capability |
| US4991188A (en) * | 1988-12-12 | 1991-02-05 | Ncr Corporation | Digital frequency divider |
| US5304938A (en) * | 1992-11-18 | 1994-04-19 | Gec Plessey Semiconductors, Inc. | Method and apparatus for providing a lower frequency signal with reference to a higher frequency signal |
| EP1290798A2 (en) * | 2000-05-19 | 2003-03-12 | Koninklijke Philips Electronics N.V. | Fractional n-divider, and frequency synthesizer provided with a fractional n-divider |
| US6879654B2 (en) * | 2003-04-25 | 2005-04-12 | International Business Machines Corporation | Non-integer frequency divider circuit |
| US6943599B2 (en) * | 2003-12-10 | 2005-09-13 | International Business Machines Corporation | Methods and arrangements for a low power phase-locked loop |
| US6967507B2 (en) * | 2004-01-15 | 2005-11-22 | Agilent Technologies, Inc. | Dual edge count programmable frequency divider |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3663743A (en) * | 1970-07-21 | 1972-05-16 | Bell & Howell Co | Frequency dividing apparatus |
| JPS5017958A (es) * | 1973-06-19 | 1975-02-25 | ||
| JPS50155262A (es) * | 1974-06-05 | 1975-12-15 |
-
1977
- 1977-09-20 DE DE2742184A patent/DE2742184C2/de not_active Expired
-
1978
- 1978-09-11 NL NL7809224A patent/NL7809224A/xx unknown
- 1978-09-15 FI FI782836A patent/FI782836A7/fi unknown
- 1978-09-18 GB GB7837181A patent/GB2005882B/en not_active Expired
- 1978-09-18 BE BE190545A patent/BE870554A/xx not_active IP Right Cessation
- 1978-09-18 AU AU39939/78A patent/AU3993978A/en active Pending
- 1978-09-18 ES ES473448A patent/ES473448A1/es not_active Expired
- 1978-09-18 NZ NZ188442A patent/NZ188442A/xx unknown
- 1978-09-20 JP JP11646778A patent/JPS5456759A/ja active Granted
- 1978-09-20 IT IT69172/78A patent/IT1107868B/it active
-
1979
- 1979-09-14 US US06/075,472 patent/US4295158A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB2005882A (en) | 1979-04-25 |
| DE2742184A1 (de) | 1979-03-29 |
| JPS6138652B2 (es) | 1986-08-30 |
| FI782836A7 (fi) | 1979-03-21 |
| AU3993978A (en) | 1980-03-27 |
| GB2005882B (en) | 1982-07-07 |
| JPS5456759A (en) | 1979-05-08 |
| NL7809224A (nl) | 1979-03-22 |
| BE870554A (fr) | 1979-03-19 |
| DE2742184C2 (de) | 1983-09-22 |
| US4295158A (en) | 1981-10-13 |
| NZ188442A (en) | 1982-03-23 |
| IT7869172A0 (it) | 1978-09-20 |
| IT1107868B (it) | 1985-12-02 |
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