AU4559485A – Image signal compressor
– Google Patents
AU4559485A – Image signal compressor
– Google Patents
Image signal compressor
Info
Publication number
AU4559485A
AU4559485A
AU45594/85A
AU4559485A
AU4559485A
AU 4559485 A
AU4559485 A
AU 4559485A
AU 45594/85 A
AU45594/85 A
AU 45594/85A
AU 4559485 A
AU4559485 A
AU 4559485A
AU 4559485 A
AU4559485 A
AU 4559485A
Authority
AU
Australia
Prior art keywords
signal
resistor
diode
compressed
image signal
Prior art date
1984-08-10
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
AU45594/85A
Other versions
AU564684B2
(en
Inventor
Isamu Yamamoto
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.)
Sony Corp
Original Assignee
Sony 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.)
1984-08-10
Filing date
1985-07-30
Publication date
1986-02-13
1985-07-30
Application filed by Sony Corp
filed
Critical
Sony Corp
1986-02-13
Publication of AU4559485A
publication
Critical
patent/AU4559485A/en
1987-08-20
Application granted
granted
Critical
1987-08-20
Publication of AU564684B2
publication
Critical
patent/AU564684B2/en
2005-07-30
Anticipated expiration
legal-status
Critical
Status
Ceased
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
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
H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
A—HUMAN NECESSITIES
A45—HAND OR TRAVELLING ARTICLES
A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
A45D40/0087—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks for samples
Abstract
A signal compressor (10) comprises a first resistor (4), a signal to be compressed being applied to one end thereof, a diode (5) connected to the first resistor (4), a compressed signal being derived from a junction point between the first resistor (4) and the diode (5), a second resistor (6) connected in series with the diode (5), and a controller (16) responsive to the signal to be compressed and connected to the second resistor (6) for controlling a compression start potential at which the diode (5) is allowed to become conductive in such a way as to decrease the compression start potential with increasing peak voltage level of the signal to be compressed or vice versa, when the diode (5) is conductive, the signal being compressed with a compression ratio determined by the first and second resistors (4,6).
AU45594/85A
1984-08-10
1985-07-30
Image signal compressor
Ceased
AU564684B2
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
JP59167604A
JPH06101807B2
(en)
1984-08-10
1984-08-10
Image signal compression circuit
JP59-167604
1984-08-10
Publications (2)
Publication Number
Publication Date
AU4559485A
true
AU4559485A
(en)
1986-02-13
AU564684B2
AU564684B2
(en)
1987-08-20
Family
ID=15852852
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
AU45594/85A
Ceased
AU564684B2
(en)
1984-08-10
1985-07-30
Image signal compressor
Country Status (7)
Country
Link
US
(1)
US4821100A
(en)
EP
(1)
EP0171982B1
(en)
JP
(1)
JPH06101807B2
(en)
AT
(1)
ATE67363T1
(en)
AU
(1)
AU564684B2
(en)
CA
(1)
CA1257685A
(en)
DE
(1)
DE3584055D1
(en)
Families Citing this family (15)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPH0832060B2
(en)
*
1985-03-21
1996-03-27
キヤノン株式会社
Color image processing method
JPH0697782B2
(en)
*
1985-08-22
1994-11-30
日立電子株式会社
Video signal automatic white compression circuit
JPS62274874A
(en)
*
1986-05-22
1987-11-28
Sharp Corp
White compression device for video signal
JPH083859B2
(en)
*
1986-12-08
1996-01-17
株式会社東芝
Banknote processor
GB2211045B
(en)
*
1987-10-10
1991-08-21
Marconi Co Ltd
Linearity adjusting circuit
JPH0220977A
(en)
*
1988-01-07
1990-01-24
Fuji Photo Film Co Ltd
Back light correction system
JP2509346B2
(en)
*
1989-10-30
1996-06-19
池上通信機株式会社
Color television image processing device
US5077602A
(en)
*
1990-02-15
1991-12-31
Eastman Kodak Company
Color difference compressor
KR100202344B1
(en)
*
1990-03-26
1999-06-15
이데이 노부유끼
Automatic knee control circuit
US5221963A
(en)
*
1990-03-31
1993-06-22
Minolta Camera Kabushiki Kaisha
Video camera having a video signal processing apparatus
DE4203717A1
(en)
*
1992-02-08
1993-08-12
Philips Patentverwaltung
CIRCUIT FOR ADAPTIVE WHITE COMPRESSION OF VIDEO SIGNALS
US5274439A
(en)
*
1992-03-31
1993-12-28
Panasonic Technologies, Inc.
Apparatus for clipping or limiting color signals to maintain color balance
US5903316A
(en)
*
1992-12-25
1999-05-11
Canon Kabushiki Kaisha
Information signal processing apparatus
US6141047A
(en)
*
1993-12-22
2000-10-31
Canon Kabushiki Kaisha
Image signal processing apparatus and image pickup device
JP3263772B2
(en)
*
1994-06-09
2002-03-11
三菱電機株式会社
Video display device
Family Cites Families (10)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR1345679A
(en)
*
1962-10-29
1963-12-13
Compteurs Comp D
Device for regulating the output level of a television camera
FR1403790A
(en)
*
1964-05-13
1965-06-25
Radiologie Cie Gle
Improvements to television circuits
US3542944A
(en)
*
1968-04-26
1970-11-24
Sylvania Electric Prod
Automatic brightness control system
US3684825A
(en)
*
1971-02-19
1972-08-15
Rca Corp
Contrast compression circuits
JPS4721050U
(en)
*
1971-03-01
1972-11-09
DE2459442B2
(en)
*
1974-12-16
1976-12-16
Robert Bosch Gmbh, 7000 Stuttgart
METHOD AND CIRCUIT ARRANGEMENT FOR LIMITING THE RAY FLOW OF A COLOR TUBE IN A VIDEO DISPLAY
JPS53105334A
(en)
*
1977-02-25
1978-09-13
Nippon Soken
Nonnlinear calculating circuit
JPS5437522A
(en)
*
1977-08-30
1979-03-20
Hitachi Denshi Ltd
Camma correction circuit
JPS56112191A
(en)
*
1980-02-08
1981-09-04
Sony Corp
Color temperature control device for image receiving tube
JPS6322765Y2
(en)
*
1980-12-27
1988-06-22
1984
1984-08-10
JP
JP59167604A
patent/JPH06101807B2/en
not_active
Expired – Fee Related
1985
1985-07-30
AU
AU45594/85A
patent/AU564684B2/en
not_active
Ceased
1985-07-31
CA
CA000487884A
patent/CA1257685A/en
not_active
Expired
1985-08-01
EP
EP85305503A
patent/EP0171982B1/en
not_active
Expired – Lifetime
1985-08-01
DE
DE8585305503T
patent/DE3584055D1/en
not_active
Expired – Lifetime
1985-08-01
AT
AT85305503T
patent/ATE67363T1/en
not_active
IP Right Cessation
1985-08-07
US
US06/763,416
patent/US4821100A/en
not_active
Expired – Lifetime
Also Published As
Publication number
Publication date
ATE67363T1
(en)
1991-09-15
US4821100A
(en)
1989-04-11
AU564684B2
(en)
1987-08-20
EP0171982A2
(en)
1986-02-19
EP0171982B1
(en)
1991-09-11
JPS6146675A
(en)
1986-03-06
CA1257685A
(en)
1989-07-18
DE3584055D1
(en)
1991-10-17
EP0171982A3
(en)
1988-03-09
JPH06101807B2
(en)
1994-12-12
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Legal Events
Date
Code
Title
Description
2003-03-06
MK14
Patent ceased section 143(a) (annual fees not paid) or expired
