GB9000317D0 - Direct frequency synthesiser - Google Patents
Direct frequency synthesiserInfo
- Publication number
- GB9000317D0 GB9000317D0 GB909000317A GB9000317A GB9000317D0 GB 9000317 D0 GB9000317 D0 GB 9000317D0 GB 909000317 A GB909000317 A GB 909000317A GB 9000317 A GB9000317 A GB 9000317A GB 9000317 D0 GB9000317 D0 GB 9000317D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- direct frequency
- frequency synthesiser
- synthesiser
- direct
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B1/00—Details
- H03B1/04—Reducing undesired oscillations, e.g. harmonics
-
- 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
- G06F1/022—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
- G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
- G06F7/544—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices for evaluating functions by calculation
- G06F7/548—Trigonometric functions; Co-ordinate transformations
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06J—HYBRID COMPUTING ARRANGEMENTS
- G06J1/00—Hybrid computing arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Computing Systems (AREA)
- Computer Hardware Design (AREA)
- Automation & Control Theory (AREA)
- Evolutionary Computation (AREA)
- Fuzzy Systems (AREA)
- Software Systems (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9000317A GB2239748B (en) | 1990-01-06 | 1990-01-06 | Direct frequency synthesiser |
GB9311017A GB2265511B (en) | 1990-01-06 | 1993-05-28 | Direct frequency synthesiser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9000317A GB2239748B (en) | 1990-01-06 | 1990-01-06 | Direct frequency synthesiser |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9000317D0 true GB9000317D0 (en) | 1990-03-07 |
GB2239748A GB2239748A (en) | 1991-07-10 |
GB2239748B GB2239748B (en) | 1993-12-15 |
Family
ID=10668938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9000317A Expired - Fee Related GB2239748B (en) | 1990-01-06 | 1990-01-06 | Direct frequency synthesiser |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2239748B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5469479A (en) * | 1992-02-27 | 1995-11-21 | Texas Instruments Incorporated | Digital chirp synthesizer |
FR2705175B1 (en) * | 1993-05-12 | 1995-07-07 | Alcatel Telspace | DEVICE FOR REDUCING INTERFERING LINES OF THE OUTPUT SIGNAL OF A DIGITAL FREQUENCY SYNTHESIZER. |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2217127A (en) * | 1988-04-07 | 1989-10-18 | Plessey Co Plc | Direct frequency synthesiser |
-
1990
- 1990-01-06 GB GB9000317A patent/GB2239748B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2239748B (en) | 1993-12-15 |
GB2239748A (en) | 1991-07-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
730A | Proceeding under section 30 patents act 1977 | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20040106 |