JPS4891961A - - Google Patents
Info
- Publication number
- JPS4891961A JPS4891961A JP47023859A JP2385972A JPS4891961A JP S4891961 A JPS4891961 A JP S4891961A JP 47023859 A JP47023859 A JP 47023859A JP 2385972 A JP2385972 A JP 2385972A JP S4891961 A JPS4891961 A JP S4891961A
- 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.)
- Granted
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
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
- H03L7/197—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
- H03L7/1972—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for reducing the locking time interval
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2385972A JPS5724699B2 (US20110009641A1-20110113-C00185.png) | 1972-03-08 | 1972-03-08 | |
| US00332339A US3813610A (en) | 1972-03-08 | 1973-02-14 | Phase-locked loop in which frequency divider ratios are altered to obtain rapid lock-in |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2385972A JPS5724699B2 (US20110009641A1-20110113-C00185.png) | 1972-03-08 | 1972-03-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4891961A true JPS4891961A (US20110009641A1-20110113-C00185.png) | 1973-11-29 |
| JPS5724699B2 JPS5724699B2 (US20110009641A1-20110113-C00185.png) | 1982-05-25 |
Family
ID=12122148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2385972A Expired JPS5724699B2 (US20110009641A1-20110113-C00185.png) | 1972-03-08 | 1972-03-08 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3813610A (US20110009641A1-20110113-C00185.png) |
| JP (1) | JPS5724699B2 (US20110009641A1-20110113-C00185.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5137776U (US20110009641A1-20110113-C00185.png) * | 1974-09-13 | 1976-03-22 |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3913021A (en) * | 1974-04-29 | 1975-10-14 | Ibm | High resolution digitally programmable electronic delay for multi-channel operation |
| US3902128A (en) * | 1974-08-05 | 1975-08-26 | Motorola Inc | Frequency/phase comparator |
| US4001713A (en) * | 1976-01-15 | 1977-01-04 | Gte Sylvania Incorporated | Phase lock loop circuit |
| US4347484A (en) * | 1980-06-02 | 1982-08-31 | General Electric Company | Synthesizer having an injection synchronized divider |
| CA1290407C (en) * | 1986-12-23 | 1991-10-08 | Shigeki Saito | Frequency synthesizer |
| US7064617B2 (en) * | 2003-05-02 | 2006-06-20 | Silicon Laboratories Inc. | Method and apparatus for temperature compensation |
| US7436227B2 (en) * | 2003-05-02 | 2008-10-14 | Silicon Laboratories Inc. | Dual loop architecture useful for a programmable clock source and clock multiplier applications |
| US7187241B2 (en) * | 2003-05-02 | 2007-03-06 | Silicon Laboratories Inc. | Calibration of oscillator devices |
| US7288998B2 (en) * | 2003-05-02 | 2007-10-30 | Silicon Laboratories Inc. | Voltage controlled clock synthesizer |
| US7295077B2 (en) * | 2003-05-02 | 2007-11-13 | Silicon Laboratories Inc. | Multi-frequency clock synthesizer |
| US7113009B2 (en) * | 2004-03-24 | 2006-09-26 | Silicon Laboratories Inc. | Programmable frequency divider |
| US7405601B2 (en) * | 2004-05-03 | 2008-07-29 | Silicon Laboratories Inc. | High-speed divider with pulse-width control |
| US7187216B2 (en) * | 2004-05-03 | 2007-03-06 | Silicon Laboratories Inc. | Phase selectable divider circuit |
| US7551009B2 (en) * | 2007-02-28 | 2009-06-23 | Silicon Laboratories Inc. | High-speed divider with reduced power consumption |
| US9391625B1 (en) * | 2015-03-24 | 2016-07-12 | Innophase Inc. | Wideband direct modulation with two-point injection in digital phase locked loops |
| US10826738B2 (en) | 2019-01-07 | 2020-11-03 | Innophase Inc. | Systems and methods for maximizing power efficiency of a digital power amplifier in a polar transmitter |
| US10651876B1 (en) | 2019-06-12 | 2020-05-12 | Innophase Inc. | System and method for dividing the carrier center frequency of an RF modulated signal by a non-integer divisor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3534285A (en) * | 1968-06-19 | 1970-10-13 | Honeywell Inc | Digital phase control circuit for synchronizing an oscillator to a harmonic of a reference frequency |
-
1972
- 1972-03-08 JP JP2385972A patent/JPS5724699B2/ja not_active Expired
-
1973
- 1973-02-14 US US00332339A patent/US3813610A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5137776U (US20110009641A1-20110113-C00185.png) * | 1974-09-13 | 1976-03-22 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5724699B2 (US20110009641A1-20110113-C00185.png) | 1982-05-25 |
| US3813610A (en) | 1974-05-28 |
