DE69316857D1 - Frequenzsynthetisierer - Google Patents
FrequenzsynthetisiererInfo
- Publication number
- DE69316857D1 DE69316857D1 DE69316857T DE69316857T DE69316857D1 DE 69316857 D1 DE69316857 D1 DE 69316857D1 DE 69316857 T DE69316857 T DE 69316857T DE 69316857 T DE69316857 T DE 69316857T DE 69316857 D1 DE69316857 D1 DE 69316857D1
- Authority
- DE
- Germany
- Prior art keywords
- frequency synthesizer
- synthesizer
- 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.)
- Expired - Fee Related
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
- H03L7/1806—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 the frequency divider comprising a phase accumulator generating the frequency divided signal
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/02—Digital function generators
- G06F1/03—Digital function generators working, at least partly, by table look-up
- G06F1/0321—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers
- G06F1/0328—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers in which the phase increment is adjustable, e.g. by using an adder-accumulator
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4327781A JPH06177651A (ja) | 1992-12-08 | 1992-12-08 | 周波数シンセサイザ |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69316857D1 true DE69316857D1 (de) | 1998-03-12 |
DE69316857T2 DE69316857T2 (de) | 1998-06-18 |
Family
ID=18202914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69316857T Expired - Fee Related DE69316857T2 (de) | 1992-12-08 | 1993-12-06 | Frequenzsynthetisierer |
Country Status (4)
Country | Link |
---|---|
US (1) | US5428308A (de) |
EP (1) | EP0601519B1 (de) |
JP (1) | JPH06177651A (de) |
DE (1) | DE69316857T2 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5604679A (en) * | 1994-10-17 | 1997-02-18 | Nomadic Technologies, Inc. | Signal generating device using direct digital synthesis |
JP2836526B2 (ja) * | 1995-04-10 | 1998-12-14 | 日本電気株式会社 | 周波数シンセサイザ |
US5519343A (en) * | 1995-07-10 | 1996-05-21 | Fluke Corporation | Two channel direct digital synthesizer with waveform memory interleaving circuit |
US5742208A (en) * | 1996-09-06 | 1998-04-21 | Tektronix, Inc. | Signal generator for generating a jitter/wander output |
DE19727810C1 (de) * | 1997-06-30 | 1999-02-18 | Siemens Ag | Hochfrequenz-Signalgenerator |
US7027484B1 (en) | 1998-07-10 | 2006-04-11 | Qualcomm Incorporated | Method and apparatus for transmitting and receiving high speed data using code division multiple access channels |
US6219088B1 (en) * | 1998-11-03 | 2001-04-17 | Broadcom Corporation | NTSC interference rejection filter |
AU6349900A (en) * | 1999-07-16 | 2001-02-05 | Advanced Testing Technologies, Inc. | Method and device for spectrally pure, programmable signal generation |
JP3226906B2 (ja) * | 1999-09-24 | 2001-11-12 | 埼玉日本電気株式会社 | 局部発振信号供給方法およびその回路 |
IT1320247B1 (it) * | 2000-07-21 | 2003-11-26 | Gambro Dasco Spa | Metodo e dispositivo di impostazione di un trattamento dialitico inuna macchina per dialisi. |
WO2002037684A1 (de) * | 2000-10-24 | 2002-05-10 | Sz Testsysteme Ag | Programmierbarer frequenzgenerator |
US20090086795A1 (en) * | 2007-09-28 | 2009-04-02 | Ahmadreza Rofougaran | Method and system for a low-complexity variable frequency oscillator using direct digital frequency synthesis |
JP5424816B2 (ja) * | 2009-10-29 | 2014-02-26 | 三菱電機株式会社 | 周波数シンセサイザ |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4905177A (en) * | 1988-01-19 | 1990-02-27 | Qualcomm, Inc. | High resolution phase to sine amplitude conversion |
US4926130A (en) * | 1988-01-19 | 1990-05-15 | Qualcomm, Inc. | Synchronous up-conversion direct digital synthesizer |
US5028887A (en) * | 1989-08-31 | 1991-07-02 | Qualcomm, Inc. | Direct digital synthesizer driven phase lock loop frequency synthesizer with hard limiter |
US4965533A (en) * | 1989-08-31 | 1990-10-23 | Qualcomm, Inc. | Direct digital synthesizer driven phase lock loop frequency synthesizer |
US5081603A (en) * | 1990-04-02 | 1992-01-14 | Easton Corporation | Amplitude-control system for a signal generator |
-
1992
- 1992-12-08 JP JP4327781A patent/JPH06177651A/ja active Pending
-
1993
- 1993-12-06 DE DE69316857T patent/DE69316857T2/de not_active Expired - Fee Related
- 1993-12-06 EP EP93119635A patent/EP0601519B1/de not_active Expired - Lifetime
- 1993-12-08 US US08/162,982 patent/US5428308A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5428308A (en) | 1995-06-27 |
JPH06177651A (ja) | 1994-06-24 |
EP0601519B1 (de) | 1998-02-04 |
EP0601519A2 (de) | 1994-06-15 |
EP0601519A3 (de) | 1995-01-11 |
DE69316857T2 (de) | 1998-06-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |