IT8219282A0 - Ricerca tabellare di funzioni nonlineari utilizzando memorie di sola lettura, di dimensioni ridotte. - Google Patents
Ricerca tabellare di funzioni nonlineari utilizzando memorie di sola lettura, di dimensioni ridotte.Info
- Publication number
- IT8219282A0 IT8219282A0 IT8219282A IT1928282A IT8219282A0 IT 8219282 A0 IT8219282 A0 IT 8219282A0 IT 8219282 A IT8219282 A IT 8219282A IT 1928282 A IT1928282 A IT 1928282A IT 8219282 A0 IT8219282 A0 IT 8219282A0
- Authority
- IT
- Italy
- Prior art keywords
- memories
- read
- reduced size
- table search
- nonlinear functions
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
- H04N9/78—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter
-
- 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
- G06F1/0307—Logarithmic or exponential functions
-
- 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
- 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
- G06F1/0356—Reduction of table size by using two or more smaller tables, e.g. addressed by parts of the argument
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
- G09G5/39—Control of the bit-mapped memory
- G09G5/395—Arrangements specially adapted for transferring the contents of the bit-mapped memory to the screen
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C8/00—Arrangements for selecting an address in a digital store
- G11C8/04—Arrangements for selecting an address in a digital store using a sequential addressing device, e.g. shift register, counter
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C8/00—Arrangements for selecting an address in a digital store
- G11C8/16—Multiple access memory array, e.g. addressing one storage element via at least two independent addressing line groups
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2101/00—Indexing scheme relating to the type of digital function generated
- G06F2101/04—Trigonometric functions
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2101/00—Indexing scheme relating to the type of digital function generated
- G06F2101/08—Powers or roots
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2101/00—Indexing scheme relating to the type of digital function generated
- G06F2101/10—Logarithmic or exponential functions
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Image Processing (AREA)
- Controls And Circuits For Display Device (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8102281 | 1981-01-26 | ||
US06/298,269 US4434437A (en) | 1981-01-26 | 1981-08-31 | Generating angular coordinate of raster scan of polar-coordinate addressed memory |
US06/319,090 US4422094A (en) | 1981-11-06 | 1981-11-06 | Digital signal processor with symmetrical transfer characteristic |
Publications (1)
Publication Number | Publication Date |
---|---|
IT8219282A0 true IT8219282A0 (it) | 1982-01-25 |
Family
ID=27261102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8219282A IT8219282A0 (it) | 1981-01-26 | 1982-01-25 | Ricerca tabellare di funzioni nonlineari utilizzando memorie di sola lettura, di dimensioni ridotte. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0070311A4 (it) |
AU (1) | AU8147882A (it) |
ES (1) | ES8303863A1 (it) |
IT (1) | IT8219282A0 (it) |
WO (1) | WO1982002637A1 (it) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4750211A (en) * | 1983-07-29 | 1988-06-07 | Polaroid Corporation | Method and apparatus for image processing with field portions |
US4839721A (en) * | 1984-08-28 | 1989-06-13 | Polaroid Corporation | Method of and apparatus for transforming color image data on the basis of an isotropic and uniform colorimetric space |
JPS6195629A (ja) * | 1984-10-16 | 1986-05-14 | Sony Corp | テレビジヨン受像機 |
US4710892A (en) * | 1984-10-29 | 1987-12-01 | Rca Corporation | Phase calculation circuitry in digital television receiver |
GB2181907B (en) * | 1985-10-18 | 1989-10-11 | Stc Plc | Phase rotation of signals |
FR2589265B1 (fr) * | 1985-10-28 | 1989-10-27 | Descartes Paris V Universite R | Processeur numerique d'images echographiques, a interpolation |
US4931801A (en) * | 1989-04-24 | 1990-06-05 | Honeywell Inc. | Method and apparatus to scan convert radar video to television outputs |
US5051734A (en) * | 1990-01-11 | 1991-09-24 | The Grass Valley Group, Inc. | Special effects using polar image coordinates |
US5430497A (en) * | 1990-08-06 | 1995-07-04 | Samsung Electronics Co., Ltd. | Removal of the folding carrier and sidebands from an unfolded video signal |
US5677967A (en) * | 1993-03-10 | 1997-10-14 | R. R. Donnelley & Sons Company | Method of and apparatus for converting between a color appearance space and a colorant space |
US5625557A (en) * | 1995-04-28 | 1997-04-29 | General Motors Corporation | Automotive controller memory allocation |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL261376A (it) * | 1960-02-19 | |||
US3836812A (en) * | 1973-01-22 | 1974-09-17 | Singer Co | Display of digitally stored image on a spherical viewing surface |
DE2421330C3 (de) * | 1974-05-02 | 1978-03-30 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Schaltungsanordnung zur numerischen Ermittlung des Funktionswertes einer Funktion mit n Parametern und Anwendung der Schaltungsanordnung |
GB1510148A (en) * | 1975-04-17 | 1978-05-10 | Secr Defence | Digital scan converters |
JPS6024429B2 (ja) * | 1977-08-15 | 1985-06-12 | 沖電気工業株式会社 | デイジタル走査変換方式 |
US4159527A (en) * | 1978-01-19 | 1979-06-26 | Tokyo Shibaura Electric Co., Ltd. | Wave generator |
US4275415A (en) * | 1978-11-13 | 1981-06-23 | Litton Industrial Products, Inc. | Scan converter |
US4241412A (en) * | 1979-03-16 | 1980-12-23 | Diasonics, Inc. | Polar to cartesian mapping apparatus and method |
-
1982
- 1982-01-25 AU AU81478/82A patent/AU8147882A/en not_active Abandoned
- 1982-01-25 ES ES509037A patent/ES8303863A1/es not_active Expired
- 1982-01-25 WO PCT/US1982/000086 patent/WO1982002637A1/en not_active Application Discontinuation
- 1982-01-25 EP EP19820900743 patent/EP0070311A4/en not_active Withdrawn
- 1982-01-25 IT IT8219282A patent/IT8219282A0/it unknown
Also Published As
Publication number | Publication date |
---|---|
WO1982002637A1 (en) | 1982-08-05 |
EP0070311A1 (en) | 1983-01-26 |
ES509037A0 (es) | 1983-02-01 |
EP0070311A4 (en) | 1985-06-06 |
ES8303863A1 (es) | 1983-02-01 |
AU8147882A (en) | 1982-08-16 |
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