FR2413833A1 - Circuit pour augmenter la pente d'un signal periodique, principalement aux environs d'un niveau de reference - Google Patents
Circuit pour augmenter la pente d'un signal periodique, principalement aux environs d'un niveau de referenceInfo
- Publication number
- FR2413833A1 FR2413833A1 FR7836490A FR7836490A FR2413833A1 FR 2413833 A1 FR2413833 A1 FR 2413833A1 FR 7836490 A FR7836490 A FR 7836490A FR 7836490 A FR7836490 A FR 7836490A FR 2413833 A1 FR2413833 A1 FR 2413833A1
- Authority
- FR
- France
- Prior art keywords
- circuit
- slope
- increasing
- reference level
- periodic signal
- 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
- 230000000737 periodic effect Effects 0.000 title 1
- 230000003321 amplification Effects 0.000 abstract 2
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 2
- 230000011664 signaling Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
- H04N23/13—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths with multiple sensors
-
- 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
- H04N5/20—Circuitry for controlling amplitude response
- H04N5/202—Gamma control
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Picture Signal Circuits (AREA)
- Processing Of Color Television Signals (AREA)
- Amplifiers (AREA)
Abstract
AMPLIFICATEUR COMPORTANT D'UNE PART DES PREMIER ET DEUXIEME ELEMENTS D'AMPLIFICATION DONT LES SORTIES SONT RACCORDEES A UNE CHARGE, ET D'AUTRE PART UN CIRCUIT DE DIFFERENCE QUI COMPORTE UN ATTENUATEUR ET DANS LEQUEL LE SIGNAL DE SORTIE DU PREMIER ELEMENT EST COMPARE AU SIGNAL D'ENTREE POUR PRODUIRE UN SIGNAL DE CORRECTION QUI EST FOURNI AU DEUXIEME ELEMENT; LES DEUX ELEMENTS SONT EVENTUELLEMENT PRECEDES DE PRE-AMPLIFICATEURS UTILISES COMME AMPLIFICATEURS DE PUISSANCE, TANDIS QUE LE DEUXIEME ELEMENT EST MUNI EGALEMENT D'UN CIRCUIT DE DIFFERENCE PRATIQUEMENT IDENTIQUE A L'AUTRE ET MUNI D'UN ATTENUATEUR, CE CIRCUIT FOURNISSANT UN SIGNAL DE CORRECTION AU PREMIER ELEMENT D'AMPLIFICATEUR, ALORS QUE LES DEUX ELEMENTS D'AMPLIFICATION RECOIVENT LE SIGNAL A AMPLIFIER. DU FAIT QUE LES SIGNAUX DE DISTORSION ONT LA MEME PHASE SUR LA CHARGE, LA DISTORSION DEVIENT PRATIQUEMENT NULLE DANS LE CAS OU L'ATTENUATION EST LA MEME DANS LES DEUX CIRCUITS AUXILIAIRES. APPLICATION A L'EQUIPEMENT DE SALLE DE SPECTACLE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7714398A NL7714398A (nl) | 1977-12-27 | 1977-12-27 | Schakeling voor het in hoofdzaak nabij een referentieniveau vergroten van een signaal- helling van een periodiek optredend signaal. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2413833A1 true FR2413833A1 (fr) | 1979-07-27 |
FR2413833B1 FR2413833B1 (fr) | 1983-06-03 |
Family
ID=19829829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7836490A Granted FR2413833A1 (fr) | 1977-12-27 | 1978-12-27 | Circuit pour augmenter la pente d'un signal periodique, principalement aux environs d'un niveau de reference |
Country Status (6)
Country | Link |
---|---|
US (1) | US4241362A (fr) |
JP (1) | JPS5497317A (fr) |
DE (1) | DE2855189A1 (fr) |
FR (1) | FR2413833A1 (fr) |
GB (1) | GB2011758B (fr) |
NL (1) | NL7714398A (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3219815A1 (de) * | 1982-05-26 | 1983-12-01 | Siemens AG, 1000 Berlin und 8000 München | Dreieckgenerator |
US4507576A (en) * | 1982-10-28 | 1985-03-26 | Tektronix, Inc. | Method and apparatus for synthesizing a drive signal for active IC testing including slew rate adjustment |
US5068718A (en) * | 1988-11-04 | 1991-11-26 | Fuji Photo Film Co., Ltd. | Image quality correcting system for use with an imaging apparatus |
DE4203092A1 (de) * | 1992-02-04 | 1993-08-05 | Philips Patentverwaltung | Verfahren zur kontrastkorrektur |
DE69421121T2 (de) * | 1993-06-30 | 2000-04-13 | Nec Corp | Farbvideokamera mit Gradationsverbesserung des dunklen Signalpegels |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3793480A (en) * | 1971-12-29 | 1974-02-19 | United Aircraft Corp | Exponential transconductance multiplier and integrated video processor |
US4041531A (en) * | 1974-07-05 | 1977-08-09 | Rca Corporation | Television signal processing apparatus including a transversal equalizer |
GB1549769A (en) * | 1975-08-06 | 1979-08-08 | Rca Corp | Negative gamma circuit |
-
1977
- 1977-12-27 NL NL7714398A patent/NL7714398A/xx not_active Application Discontinuation
-
1978
- 1978-11-14 US US05/960,527 patent/US4241362A/en not_active Expired - Lifetime
- 1978-12-21 DE DE19782855189 patent/DE2855189A1/de not_active Withdrawn
- 1978-12-21 GB GB7849422A patent/GB2011758B/en not_active Expired
- 1978-12-25 JP JP15873178A patent/JPS5497317A/ja active Pending
- 1978-12-27 FR FR7836490A patent/FR2413833A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
US4241362A (en) | 1980-12-23 |
NL7714398A (nl) | 1979-06-29 |
JPS5497317A (en) | 1979-08-01 |
DE2855189A1 (de) | 1979-06-28 |
GB2011758B (en) | 1982-07-28 |
FR2413833B1 (fr) | 1983-06-03 |
GB2011758A (en) | 1979-07-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |