GB1517041A - Creation of Inventions and Patents with Artificial Intelligence

GB1517041A – Amplifier suitable for use as a colour kinescope driver
– Google Patents

GB1517041A – Amplifier suitable for use as a colour kinescope driver
– Google Patents
Amplifier suitable for use as a colour kinescope driver

Info

Publication number
GB1517041A

GB1517041A
GB17249/75A
GB1724975A
GB1517041A
GB 1517041 A
GB1517041 A
GB 1517041A
GB 17249/75 A
GB17249/75 A
GB 17249/75A
GB 1724975 A
GB1724975 A
GB 1724975A
GB 1517041 A
GB1517041 A
GB 1517041A
Authority
GB
United Kingdom
Prior art keywords
voltage
crt
capacitor
comparator
coupled
Prior art date
1975-08-27
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.)

Expired

Application number
GB17249/75A
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.)
1975-08-27
Filing date
1975-08-27
Publication date
1978-07-05

1975-08-27
Application filed by RCA Corp
filed
Critical
RCA Corp

1975-08-27
Priority to GB17249/75A
priority
Critical
patent/GB1517041A/en

1975-10-22
Priority to US05/624,898
priority
patent/US3996609A/en

1976-04-05
Priority to CA249,582A
priority
patent/CA1063712A/en

1976-04-14
Priority to SE7604376A
priority
patent/SE413620B/en

1976-04-14
Priority to AU12983/76A
priority
patent/AU497006B2/en

1976-04-14
Priority to FI761021A
priority
patent/FI761021A/fi

1976-04-15
Priority to DE2616728A
priority
patent/DE2616728B2/en

1976-04-23
Priority to JP51047150A
priority
patent/JPS51131218A/en

1976-04-23
Priority to NL7604365A
priority
patent/NL7604365A/en

1976-04-23
Priority to FR7612127A
priority
patent/FR2309100A1/en

1978-07-05
Publication of GB1517041A
publication
Critical
patent/GB1517041A/en

Status
Expired
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

H04N9/72—Circuits for processing colour signals for reinsertion of DC and slowly varying components of colour signals

Abstract

1517041 Colour television RCA CORPORATION 27 Aug 1975 [25 April 1975] 17249/75 Heading H4F Amplifier arrangements for a colour television receiver are designed to prevent brightness variations and colour imbalance in the reproduced image due to variations in the operating conditions of the chrominance signal amplifying stages e.g. supply voltage variations. As shown a matrix unit 100 and CRT driver circuit 199 are provided for each chrominance channel, the luminance signal Y being applied directly to summing transistor 102 and the chrominance signal (e.g. R-Y) being applied via capacitor 110 to the same transistor, the resulting output R being DC coupled to modulate one beam of the display CRT 153. A stabilized reference voltage from temperature compensated voltage reference 169 is fed to a voltage comparator 168 together with a direct voltage proportional to the direct voltage fed to the display CRT e.g. from black DC level setting potentiometer 167, and this comparator is rendered operative during the horizontal retrace intervals by applying horizontal blanking pulses thereto from source 151. A current converter 180 e.g. a current mirror circuit, is coupled to the comparator 168 (differential amplifier) and to the capacitor 110, for charging and discharging the capacitor to a direct voltage level in relation to the difference in voltage between the two inputs of the comparator so as to counteract any changes in voltage developed at the input to the CRT e.g. due to supply voltage B variations at resistor 1651. The circuit also includes a differential amplifier 162 to one input of which a capacitor 120′ is coupled, this capacitor being connected to the CRT via potentiometer 174 (allows AC gain adjustment), and being selectively charged during the horizontal retrace intervals. Transistor 108 is rendered conductive during the horizontal retrace intervals. The capacitors 110 and 120′ are selected to have equal discharging rates during the time intervals between the horizontal retrace intervals. A cascade amplifier 164 is coupled between the output of the differential amplifier 162 and the CRT.

GB17249/75A
1975-04-25
1975-08-27
Amplifier suitable for use as a colour kinescope driver

Expired

GB1517041A
(en)

Priority Applications (10)

Application Number
Priority Date
Filing Date
Title

GB17249/75A

GB1517041A
(en)

1975-08-27
1975-08-27
Amplifier suitable for use as a colour kinescope driver

US05/624,898

US3996609A
(en)

1975-05-05
1975-10-22
Amplifier suitable for use as a color kinescope driver

CA249,582A

CA1063712A
(en)

1975-08-27
1976-04-05
Amplifier suitable for use as a color kinescope driver

SE7604376A

SE413620B
(en)

1975-08-27
1976-04-14

AMPLIFIER EASY TO USE AS A DRIVER IMAGE DRIVER

AU12983/76A

AU497006B2
(en)

1975-04-25
1976-04-14
Colour kinescope driver amplifier

FI761021A

FI761021A
(en)

1975-08-27
1976-04-14

DE2616728A

DE2616728B2
(en)

1975-08-27
1976-04-15

Circuit arrangement for controlling the image display device of a color television receiver

JP51047150A

JPS51131218A
(en)

1975-08-27
1976-04-23
Circuit for driving display unit

NL7604365A

NL7604365A
(en)

1975-08-27
1976-04-23

AMPLIFIER SUITABLE FOR USE AS A KINESCOPE CONTROL DEVICE.

FR7612127A

FR2309100A1
(en)

1975-08-27
1976-04-23

AMPLIFIER THAT CAN BE USED AS ATTACK STAGE OF A COLOR IMAGE TUBE

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

GB17249/75A

GB1517041A
(en)

1975-08-27
1975-08-27
Amplifier suitable for use as a colour kinescope driver

Publications (1)

Publication Number
Publication Date

GB1517041A
true

GB1517041A
(en)

1978-07-05

Family
ID=10091896
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB17249/75A
Expired

GB1517041A
(en)

1975-04-25
1975-08-27
Amplifier suitable for use as a colour kinescope driver

Country Status (10)

Country
Link

US
(1)

US3996609A
(en)

JP
(1)

JPS51131218A
(en)

AU
(1)

AU497006B2
(en)

CA
(1)

CA1063712A
(en)

DE
(1)

DE2616728B2
(en)

FI
(1)

FI761021A
(en)

FR
(1)

FR2309100A1
(en)

GB
(1)

GB1517041A
(en)

NL
(1)

NL7604365A
(en)

SE
(1)

SE413620B
(en)

Cited By (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE2941673A1
(en)

1978-10-17
1980-04-30
Sony Corp

LUMINOUS CONTROL CONTROL FOR TELEVISION RECEIVERS

GB2129248A
(en)

1982-10-14
1984-05-10
Rca Corp
Automatic bias control apparatus for an electron gun in an image reproducer

Families Citing this family (13)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US4051521A
(en)

1976-09-30
1977-09-27
Rca Corporation
Video amplifier for combining luminance and chrominance signals

JPS5356189A
(en)

1976-11-02
1978-05-22
Toyo Soda Mfg Co Ltd
Separating method for phosphoric acid and zinc

JPS53101252A
(en)

1977-02-16
1978-09-04
Sony Corp
Feedback-type amplifier circuit

US4197557A
(en)

1977-05-05
1980-04-08
Rca Corporation
Brightness control circuit employing a closed control loop

AU523871B2
(en)

1978-07-06
1982-08-19
Rca Corp.
Kinescope grid and cathode video drive system

FR2434538A1
(en)

1978-08-23
1980-03-21
Thomson Csf
Colour TV voltage locking circuit – discharges, reference voltage capacitor through current reflector controlled by differential amplifier to avoid problems of drift

DE3128528A1
(en)

1981-07-18
1983-02-03
Loesche GmbH, 4000 Düsseldorf
Process for preparing a mixture of pulverised coal and refuse compost

US4371896A
(en)

1981-08-27
1983-02-01
Rca Corporation
Stabilized video signal control loop

US4547799A
(en)

1983-05-31
1985-10-15
Rca Corporation
Feedback kinescope driver

KR930009100B1
(en)

1991-01-17
1993-09-22
삼성전자 주식회사
Drive circuit in high band crt

ES2163414T3
(en)

1993-04-19
2002-02-01
Sanyo Electric Co

HIGH IMPEDANCE CIRCUIT.

US5708481A
(en)

1996-07-31
1998-01-13
Chrontel, Inc.
Fast current-mode analog circuit for converting video data signals between color space formats

DE10038321A1
(en)

2000-08-05
2002-02-14
Philips Corp Intellectual Pty

Adaptation circuit for audio and video signals

Family Cites Families (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3701843A
(en)

1970-10-05
1972-10-31
Zenith Radio Corp
Matrix amplifier network with novel d-c set-up arrangement

1975

1975-08-27
GB
GB17249/75A
patent/GB1517041A/en
not_active
Expired

1975-10-22
US
US05/624,898
patent/US3996609A/en
not_active
Expired – Lifetime

1976

1976-04-05
CA
CA249,582A
patent/CA1063712A/en
not_active
Expired

1976-04-14
SE
SE7604376A
patent/SE413620B/en
unknown

1976-04-14
AU
AU12983/76A
patent/AU497006B2/en
not_active
Expired

1976-04-14
FI
FI761021A
patent/FI761021A/fi
not_active
Application Discontinuation

1976-04-15
DE
DE2616728A
patent/DE2616728B2/en
not_active
Withdrawn

1976-04-23
FR
FR7612127A
patent/FR2309100A1/en
not_active
Withdrawn

1976-04-23
JP
JP51047150A
patent/JPS51131218A/en
active
Pending

1976-04-23
NL
NL7604365A
patent/NL7604365A/en
not_active
Application Discontinuation

Cited By (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE2941673A1
(en)

1978-10-17
1980-04-30
Sony Corp

LUMINOUS CONTROL CONTROL FOR TELEVISION RECEIVERS

GB2129248A
(en)

1982-10-14
1984-05-10
Rca Corp
Automatic bias control apparatus for an electron gun in an image reproducer

Also Published As

Publication number
Publication date

DE2616728B2
(en)

1978-11-09

US3996609A
(en)

1976-12-07

DE2616728A1
(en)

1976-10-28

AU497006B2
(en)

1978-11-16

CA1063712A
(en)

1979-10-02

FI761021A
(en)

1976-10-26

NL7604365A
(en)

1976-10-27

JPS51131218A
(en)

1976-11-15

AU1298376A
(en)

1977-10-20

SE413620B
(en)

1980-06-09

SE7604376L
(en)

1976-10-26

FR2309100A1
(en)

1976-11-19

Contact information