ES509037A0 - "perfeccionamientos introducidos en una disposicion de tratamiento de senales digitales". - Google Patents

"perfeccionamientos introducidos en una disposicion de tratamiento de senales digitales".

Info

Publication number
ES509037A0
ES509037A0 ES509037A ES509037A ES509037A0 ES 509037 A0 ES509037 A0 ES 509037A0 ES 509037 A ES509037 A ES 509037A ES 509037 A ES509037 A ES 509037A ES 509037 A0 ES509037 A0 ES 509037A0
Authority
ES
Spain
Prior art keywords
digital signals
improvements introduced
signals treatment
treatment provision
provision
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
Application number
ES509037A
Other languages
English (en)
Other versions
ES8303863A1 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RCA Corp
Original Assignee
RCA Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US06/298,269 external-priority patent/US4434437A/en
Priority claimed from US06/319,090 external-priority patent/US4422094A/en
Application filed by RCA Corp filed Critical RCA Corp
Publication of ES509037A0 publication Critical patent/ES509037A0/es
Publication of ES8303863A1 publication Critical patent/ES8303863A1/es
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/77Circuits 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
    • H04N9/78Circuits 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
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/02Digital function generators
    • G06F1/03Digital function generators working, at least partly, by table look-up
    • G06F1/0307Logarithmic or exponential functions
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/02Digital function generators
    • G06F1/03Digital function generators working, at least partly, by table look-up
    • G06F1/035Reduction of table size
    • G06F1/0353Reduction of table size by using symmetrical properties of the function, e.g. using most significant bits for quadrant control
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/02Digital function generators
    • G06F1/03Digital function generators working, at least partly, by table look-up
    • G06F1/035Reduction of table size
    • G06F1/0356Reduction of table size by using two or more smaller tables, e.g. addressed by parts of the argument
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00Geometric image transformation in the plane of the image
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36Control 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
    • G09G5/39Control of the bit-mapped memory
    • G09G5/395Arrangements specially adapted for transferring the contents of the bit-mapped memory to the screen
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C7/00Arrangements for writing information into, or reading information out from, a digital store
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C8/00Arrangements for selecting an address in a digital store
    • G11C8/04Arrangements for selecting an address in a digital store using a sequential addressing device, e.g. shift register, counter
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C8/00Arrangements for selecting an address in a digital store
    • G11C8/16Multiple access memory array, e.g. addressing one storage element via at least two independent addressing line groups
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/64Circuits for processing colour signals
    • H04N9/646Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2101/00Indexing scheme relating to the type of digital function generated
    • G06F2101/04Trigonometric functions
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2101/00Indexing scheme relating to the type of digital function generated
    • G06F2101/08Powers or roots
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2101/00Indexing scheme relating to the type of digital function generated
    • G06F2101/10Logarithmic or exponential functions
ES509037A 1981-01-26 1982-01-25 "perfeccionamientos introducidos en una disposicion de tratamiento de senales digitales". Expired ES8303863A1 (es)

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 (2)

Publication Number Publication Date
ES509037A0 true ES509037A0 (es) 1983-02-01
ES8303863A1 ES8303863A1 (es) 1983-02-01

Family

ID=27261102

Family Applications (1)

Application Number Title Priority Date Filing Date
ES509037A Expired ES8303863A1 (es) 1981-01-26 1982-01-25 "perfeccionamientos introducidos en una disposicion de tratamiento de senales digitales".

Country Status (5)

Country Link
EP (1) EP0070311A4 (es)
AU (1) AU8147882A (es)
ES (1) ES8303863A1 (es)
IT (1) IT8219282A0 (es)
WO (1) WO1982002637A1 (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL261252A (es) * 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

Also Published As

Publication number Publication date
WO1982002637A1 (en) 1982-08-05
IT8219282A0 (it) 1982-01-25
ES8303863A1 (es) 1983-02-01
EP0070311A1 (en) 1983-01-26
AU8147882A (en) 1982-08-16
EP0070311A4 (en) 1985-06-06

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