GB9817908D0 - Frequency synthesis - Google Patents
Frequency synthesisInfo
- Publication number
- GB9817908D0 GB9817908D0 GBGB9817908.8A GB9817908A GB9817908D0 GB 9817908 D0 GB9817908 D0 GB 9817908D0 GB 9817908 A GB9817908 A GB 9817908A GB 9817908 D0 GB9817908 D0 GB 9817908D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequency synthesis
- synthesis
- frequency
- 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.)
- Granted
Links
- 230000015572 biosynthetic process Effects 0.000 title 1
- 238000003786 synthesis reaction Methods 0.000 title 1
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
- H03L7/1974—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 fractional frequency division
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
- H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
- H03J1/0041—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for frequency synthesis with counters or frequency dividers
- H03J1/005—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for frequency synthesis with counters or frequency dividers in a loop
-
- 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
- H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
- H03L7/23—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop with pulse counters or frequency dividers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9817908A GB2340679B (en) | 1998-08-17 | 1998-08-17 | Frequency synthesis |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9817908A GB2340679B (en) | 1998-08-17 | 1998-08-17 | Frequency synthesis |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9817908D0 true GB9817908D0 (en) | 1998-10-14 |
GB2340679A GB2340679A (en) | 2000-02-23 |
GB2340679B GB2340679B (en) | 2001-11-28 |
Family
ID=10837391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9817908A Expired - Fee Related GB2340679B (en) | 1998-08-17 | 1998-08-17 | Frequency synthesis |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2340679B (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL163396C (en) * | 1974-04-22 | 1980-08-15 | Philips Nv | MULTI-CHANNEL GENERATOR. |
FR2412981A1 (en) * | 1977-12-23 | 1979-07-20 | Adret Electronique | FREQUENCY SYNTHESIZER WITH MULTIPLE LOOPS OF PHASE SLOWING, AGENCY TO AVOID ANY DISCONTINUITY OF FREQUENCY OR AMPLITUDE IN A WIDE RANGE OF FREQUENCY VARIATION |
JPS5854740A (en) * | 1981-09-28 | 1983-03-31 | Nec Corp | Frequency synthesizer |
JP2526847B2 (en) * | 1993-05-24 | 1996-08-21 | 日本電気株式会社 | Digital wireless telephone |
GB2295930B (en) * | 1994-12-06 | 1999-11-24 | Motorola Ltd | Method and apparatus for implementing frequency hopping in a TDMA system |
-
1998
- 1998-08-17 GB GB9817908A patent/GB2340679B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2340679A (en) | 2000-02-23 |
GB2340679B (en) | 2001-11-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20060817 |