PT94100A - Conversor para a transformacao de um negativo fotografico de diapositivo ou cinematografico para televisao - Google Patents
Conversor para a transformacao de um negativo fotografico de diapositivo ou cinematografico para televisaoInfo
- Publication number
- PT94100A PT94100A PT94100A PT9410090A PT94100A PT 94100 A PT94100 A PT 94100A PT 94100 A PT94100 A PT 94100A PT 9410090 A PT9410090 A PT 9410090A PT 94100 A PT94100 A PT 94100A
- Authority
- PT
- Portugal
- Prior art keywords
- cinematographic
- television
- transformation
- converter
- slot
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/253—Picture signal generating by scanning motion picture films or slide opaques, e.g. for telecine
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/16—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
- H04N5/18—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit
- H04N5/185—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit for the black level
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/11—Scanning of colour motion picture films, e.g. for telecine
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Picture Signal Circuits (AREA)
- Processing Of Color Television Signals (AREA)
- Color Television Image Signal Generators (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8901307A NL8901307A (nl) | 1989-05-25 | 1989-05-25 | Omzetinrichting voor een foto-, dia- respektievelijk filmnegatief-televisie-omzetting. |
Publications (2)
Publication Number | Publication Date |
---|---|
PT94100A true PT94100A (pt) | 1991-11-29 |
PT94100B PT94100B (pt) | 1997-05-28 |
Family
ID=19854707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT94100A PT94100B (pt) | 1989-05-25 | 1990-05-21 | Conversor para a transformacao de um negativo fotografico de diapositivo ou cinematografico para televisao |
Country Status (6)
Country | Link |
---|---|
US (1) | US5053874A (pt) |
EP (1) | EP0400717B1 (pt) |
JP (1) | JPH0319581A (pt) |
DE (1) | DE69021271T2 (pt) |
NL (1) | NL8901307A (pt) |
PT (1) | PT94100B (pt) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69131760T2 (de) * | 1990-05-02 | 2000-04-27 | Canon Kk | Bildabtastungsvorrichtung |
US5247643A (en) * | 1991-01-08 | 1993-09-21 | Ast Research, Inc. | Memory control circuit for optimizing copy back/line fill operation in a copy back cache system |
KR930015722A (ko) * | 1991-12-21 | 1993-07-24 | 이헌조 | 비데오 카메라의 음화 필름 촬영회로 |
AU3756199A (en) * | 1998-04-23 | 1999-11-08 | Tv Photo Viewers, Inc. | A device for viewing a photographic image through a television set |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3952144A (en) * | 1974-10-02 | 1976-04-20 | Faxon Communications Corporation | Methods and apparatus for automatic background and contrast control |
FR2406922A1 (fr) * | 1977-10-21 | 1979-05-18 | Thomson Csf | Dispositif d'expansion de contraste video et systeme comportant un tel dispositif |
US4498105A (en) * | 1982-05-27 | 1985-02-05 | Rca Corporation | Field-transfer CCD imagers with reference-black-level generation capability |
JPS59193684A (ja) * | 1983-04-19 | 1984-11-02 | Fuji Photo Film Co Ltd | ネガポジ反転装置 |
US4660091A (en) * | 1985-09-16 | 1987-04-21 | Eastman Kodak Company | Exposure level correction for film-to-video conversion |
JPH0797830B2 (ja) * | 1986-04-08 | 1995-10-18 | ソニー株式会社 | ビデオカメラの黒レベル補正回路 |
JPS645569U (pt) * | 1987-06-26 | 1989-01-12 | ||
JPH0828877B2 (ja) * | 1988-07-18 | 1996-03-21 | 富士写真フイルム株式会社 | 自動白バランス調整方法及び装置 |
US4912558A (en) * | 1988-12-27 | 1990-03-27 | Eastman Kodak Company | Optical image to video transfer system having enhanced resolution and contrast for dark areas of the image |
-
1989
- 1989-05-25 NL NL8901307A patent/NL8901307A/nl not_active Application Discontinuation
-
1990
- 1990-05-15 US US07/524,249 patent/US5053874A/en not_active Expired - Fee Related
- 1990-05-21 PT PT94100A patent/PT94100B/pt not_active IP Right Cessation
- 1990-05-22 EP EP90201286A patent/EP0400717B1/en not_active Expired - Lifetime
- 1990-05-22 JP JP2130398A patent/JPH0319581A/ja active Pending
- 1990-05-22 DE DE69021271T patent/DE69021271T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5053874A (en) | 1991-10-01 |
EP0400717B1 (en) | 1995-08-02 |
JPH0319581A (ja) | 1991-01-28 |
NL8901307A (nl) | 1990-12-17 |
DE69021271D1 (de) | 1995-09-07 |
PT94100B (pt) | 1997-05-28 |
EP0400717A1 (en) | 1990-12-05 |
DE69021271T2 (de) | 1996-04-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB1A | Laying open of patent application |
Effective date: 19900526 |
|
FG3A | Patent granted, date of granting |
Effective date: 19970212 |
|
PD3A | Change of proprietorship | ||
MM3A | Annulment or lapse |
Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 19990831 |