DE3312796C2 - - Google Patents
Info
- Publication number
- DE3312796C2 DE3312796C2 DE19833312796 DE3312796A DE3312796C2 DE 3312796 C2 DE3312796 C2 DE 3312796C2 DE 19833312796 DE19833312796 DE 19833312796 DE 3312796 A DE3312796 A DE 3312796A DE 3312796 C2 DE3312796 C2 DE 3312796C2
- Authority
- DE
- Germany
- Prior art keywords
- sin
- cos
- value
- stage
- values
- 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 - Lifetime
Links
Classifications
-
- 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
- G06F1/035—Reduction of table size
- G06F1/0353—Reduction of table size by using symmetrical properties of the function, e.g. using most significant bits for quadrant control
-
- 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
- G06F7/5446—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 using crossaddition algorithms, e.g. CORDIC
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Computing Systems (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Analysis (AREA)
- Computational Mathematics (AREA)
- Complex Calculations (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833312796 DE3312796A1 (de) | 1983-04-09 | 1983-04-09 | Digitaler oszillator zur erzeugung komplexer signale |
GB08408763A GB2138606B (en) | 1983-04-09 | 1984-04-05 | Digital oscillator for generation of complex signals |
FR8405565A FR2544106A1 (fr) | 1983-04-09 | 1984-04-09 | Oscillateur numerique delivrant des signaux complexes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833312796 DE3312796A1 (de) | 1983-04-09 | 1983-04-09 | Digitaler oszillator zur erzeugung komplexer signale |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3312796A1 DE3312796A1 (de) | 1984-10-11 |
DE3312796C2 true DE3312796C2 (fr) | 1991-06-20 |
Family
ID=6195848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19833312796 Granted DE3312796A1 (de) | 1983-04-09 | 1983-04-09 | Digitaler oszillator zur erzeugung komplexer signale |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE3312796A1 (fr) |
FR (1) | FR2544106A1 (fr) |
GB (1) | GB2138606B (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT399236B (de) * | 1986-02-03 | 1995-04-25 | Siemens Ag Oesterreich | Digitaler sinusgenerator |
EP0259514A1 (fr) * | 1986-09-11 | 1988-03-16 | Deutsche ITT Industries GmbH | Circuit numérique pour la génération simultanée de valeurs numériques de sinus et de cosinus |
JPS63186329A (ja) * | 1987-01-28 | 1988-08-01 | Nec Corp | 三角関数前処理装置 |
US4896287A (en) * | 1988-05-31 | 1990-01-23 | General Electric Company | Cordic complex multiplier |
US5001660A (en) * | 1989-04-27 | 1991-03-19 | Hewlett-Packard Company | Waveform generation method using stored complex data |
DE4001266C2 (de) * | 1990-01-18 | 1994-10-20 | Abb Patent Gmbh | Verfahren und Sendeeinrichtung zur Übertragung digitaler Informationen über Stromversorgungsnetze |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1409849A (fr) * | 1964-07-21 | 1965-09-03 | Nouvelles Tech Radioelectrique | Dispositif pour déterminer les valeurs analogiques des lignes trigonométriques d'un angle à partir de sa valeur digitale |
DE3007907A1 (de) * | 1980-03-01 | 1981-09-17 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Digitaler empfaenger |
DE3119448C2 (de) * | 1981-05-15 | 1984-10-11 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung zur Erzeugung eines cosinusförmigen Signals und eines sinusförmigen Signals |
-
1983
- 1983-04-09 DE DE19833312796 patent/DE3312796A1/de active Granted
-
1984
- 1984-04-05 GB GB08408763A patent/GB2138606B/en not_active Expired
- 1984-04-09 FR FR8405565A patent/FR2544106A1/fr active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2544106A1 (fr) | 1984-10-12 |
DE3312796A1 (de) | 1984-10-11 |
GB2138606B (en) | 1986-08-13 |
GB2138606A (en) | 1984-10-24 |
GB8408763D0 (en) | 1984-05-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: TELEFUNKEN SYSTEMTECHNIK GMBH, 7900 ULM, DE |
|
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition |