JPS57500133A - - Google Patents
Info
- Publication number
- JPS57500133A JPS57500133A JP56501120A JP50112081A JPS57500133A JP S57500133 A JPS57500133 A JP S57500133A JP 56501120 A JP56501120 A JP 56501120A JP 50112081 A JP50112081 A JP 50112081A JP S57500133 A JPS57500133 A JP S57500133A
- Authority
- JP
- Japan
- 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.)
- Pending
Links
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
- H03K23/667—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 switching the base during a counting cycle
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/121,207 US4325031A (en) | 1980-02-13 | 1980-02-13 | Divider with dual modulus prescaler for phase locked loop frequency synthesizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57500133A true JPS57500133A (ja) | 1982-01-21 |
Family
ID=22395242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56501120A Pending JPS57500133A (ja) | 1980-02-13 | 1981-01-05 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4325031A (ja) |
| EP (1) | EP0045800A4 (ja) |
| JP (1) | JPS57500133A (ja) |
| BR (1) | BR8106697A (ja) |
| CA (1) | CA1147028A (ja) |
| WO (1) | WO1981002372A1 (ja) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4423381A (en) * | 1981-01-16 | 1983-12-27 | Cincinnati Electronics Corporation | Pulse control circuit |
| WO1982003477A1 (en) * | 1981-04-06 | 1982-10-14 | Inc Motorola | Frequency synthesized transceiver |
| US4472820A (en) * | 1981-04-06 | 1984-09-18 | Motorola, Inc. | Program swallow counting device using a single synchronous counter for frequency synthesizing |
| US4518920A (en) * | 1982-06-03 | 1985-05-21 | Klimsch/Optronics, Inc. | Frequency synthesizer and method |
| US4585957A (en) * | 1983-04-25 | 1986-04-29 | Motorola Inc. | Diode load emitter coupled logic circuits |
| US4714899A (en) * | 1986-09-30 | 1987-12-22 | Motorola, Inc. | Frequency synthesizer |
| CA1290407C (en) * | 1986-12-23 | 1991-10-08 | Shigeki Saito | Frequency synthesizer |
| DE3712975A1 (de) * | 1987-04-16 | 1988-11-03 | Kernforschungsanlage Juelich | Verfahren und schaltungsanordnung zur digitalen einstellung einer steuerfrequenz |
| US4891825A (en) * | 1988-02-09 | 1990-01-02 | Motorola, Inc. | Fully synchronized programmable counter with a near 50% duty cycle output signal |
| US4851787A (en) * | 1988-08-18 | 1989-07-25 | Avantek, Inc. | Low noise frequency synthesizer |
| US5066927A (en) * | 1990-09-06 | 1991-11-19 | Ericsson Ge Mobile Communication Holding, Inc. | Dual modulus counter for use in a phase locked loop |
| JP3241079B2 (ja) * | 1992-02-24 | 2001-12-25 | 株式会社日立製作所 | ディジタル位相同期回路 |
| FR2702106B1 (fr) * | 1993-02-26 | 1995-05-12 | Thomson Csf Semiconducteurs | Diviseur de fréquence. |
| FI98420C (fi) * | 1995-01-24 | 1997-06-10 | Nokia Mobile Phones Ltd | Menetelmä ja kytkentä moduloidun signaalin muodostamiseksi lähetin/vastaanottimessa |
| DE19519321C2 (de) * | 1995-05-26 | 1997-10-16 | Gerhard Kultscher Ind Elektron | Frequenzteiler mit dualer, aktaler, dezimaler oder hexadezimaler Divisoreingabe |
| US6035182A (en) * | 1998-01-20 | 2000-03-07 | Motorola, Inc. | Single counter dual modulus frequency division apparatus |
| US7012984B2 (en) * | 1999-07-29 | 2006-03-14 | Tropian, Inc. | PLL noise smoothing using dual-modulus interleaving |
| US6492852B2 (en) | 2001-03-30 | 2002-12-10 | International Business Machines Corporation | Pre-divider architecture for low power in a digital delay locked loop |
| US6559726B1 (en) * | 2001-10-31 | 2003-05-06 | Cypress Semiconductor Corp. | Multi-modulus counter in modulated frequency synthesis |
| US6725245B2 (en) | 2002-05-03 | 2004-04-20 | P.C. Peripherals, Inc | High speed programmable counter architecture |
| US6952121B1 (en) * | 2003-11-20 | 2005-10-04 | National Semiconductor Corporation | Prescaling for dividing fast pulsed signal |
| EP2187522A1 (en) * | 2008-11-14 | 2010-05-19 | Fujitsu Microelectronics Limited | Divider circuitry |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2157119A5 (ja) * | 1971-10-18 | 1973-06-01 | Adret Electronique | |
| US3805192A (en) * | 1972-08-09 | 1974-04-16 | Electronic Communications | Frequency modulator-variable frequency generator |
| US3849635A (en) * | 1973-04-12 | 1974-11-19 | Rca Corp | High speed programmable counter |
| DE2400394C3 (de) * | 1974-01-05 | 1981-09-03 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Schaltungsanordnung zur digitalen Frequenzteilung |
| US3959737A (en) * | 1974-11-18 | 1976-05-25 | Engelmann Microwave Co. | Frequency synthesizer having fractional frequency divider in phase-locked loop |
| DE2512738C2 (de) * | 1975-03-22 | 1982-03-25 | Robert Bosch Gmbh, 7000 Stuttgart | Frequenzregler |
| US4121162A (en) * | 1976-06-14 | 1978-10-17 | Motorola, Inc. | Digital phase locked loop tuning system |
| US4053739A (en) * | 1976-08-11 | 1977-10-11 | Motorola, Inc. | Dual modulus programmable counter |
| US4184068A (en) * | 1977-11-14 | 1980-01-15 | Harris Corporation | Full binary programmed frequency divider |
-
1980
- 1980-02-13 US US06/121,207 patent/US4325031A/en not_active Expired - Lifetime
-
1981
- 1981-01-05 WO PCT/US1981/000011 patent/WO1981002372A1/en not_active Application Discontinuation
- 1981-01-05 BR BR8106697A patent/BR8106697A/pt unknown
- 1981-01-05 EP EP19810900770 patent/EP0045800A4/en not_active Ceased
- 1981-01-05 JP JP56501120A patent/JPS57500133A/ja active Pending
- 1981-01-12 CA CA000368264A patent/CA1147028A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA1147028A (en) | 1983-05-24 |
| WO1981002372A1 (en) | 1981-08-20 |
| US4325031A (en) | 1982-04-13 |
| EP0045800A4 (en) | 1982-07-13 |
| EP0045800A1 (en) | 1982-02-17 |
| BR8106697A (pt) | 1981-12-22 |