[go: up one dir, main page]

KR910013471U - Automatic brightness control circuit using transistor - Google Patents

Automatic brightness control circuit using transistor

Info

Publication number
KR910013471U
KR910013471U KR2019890020399U KR890020399U KR910013471U KR 910013471 U KR910013471 U KR 910013471U KR 2019890020399 U KR2019890020399 U KR 2019890020399U KR 890020399 U KR890020399 U KR 890020399U KR 910013471 U KR910013471 U KR 910013471U
Authority
KR
South Korea
Prior art keywords
transistor
control circuit
brightness control
automatic brightness
automatic
Prior art date
Application number
KR2019890020399U
Other languages
Korean (ko)
Other versions
KR920002445Y1 (en
Inventor
원태연
Original Assignee
삼성전자 주식회사
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
Application filed by 삼성전자 주식회사 filed Critical 삼성전자 주식회사
Priority to KR2019890020399U priority Critical patent/KR920002445Y1/en
Publication of KR910013471U publication Critical patent/KR910013471U/en
Application granted granted Critical
Publication of KR920002445Y1 publication Critical patent/KR920002445Y1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness
    • H04N5/59—Control of contrast or brightness in dependence upon beam current of cathode ray tube
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/18—Generation of supply voltages, in combination with electron beam deflecting

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)
KR2019890020399U 1989-12-29 1989-12-29 Auto-bright control circuit using tr KR920002445Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019890020399U KR920002445Y1 (en) 1989-12-29 1989-12-29 Auto-bright control circuit using tr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019890020399U KR920002445Y1 (en) 1989-12-29 1989-12-29 Auto-bright control circuit using tr

Publications (2)

Publication Number Publication Date
KR910013471U true KR910013471U (en) 1991-07-30
KR920002445Y1 KR920002445Y1 (en) 1992-04-13

Family

ID=19294423

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019890020399U KR920002445Y1 (en) 1989-12-29 1989-12-29 Auto-bright control circuit using tr

Country Status (1)

Country Link
KR (1) KR920002445Y1 (en)

Also Published As

Publication number Publication date
KR920002445Y1 (en) 1992-04-13

Similar Documents

Publication Publication Date Title
DE68916952D1 (en) Automatic frequency control circuit.
DE69222093D1 (en) Automatic automatic frequency control circuit
DE69032463D1 (en) Branch control circuit
DK628788D0 (en) BRIGHTNESS ADJUSTMENT CIRCUIT
KR860009044U (en) Screen brightness automatic adjustment device
DE69209691D1 (en) Automatic brightness limiter circuit
KR910013471U (en) Automatic brightness control circuit using transistor
KR900002017U (en) On-screen character brightness control circuit
KR900012428A (en) Automatic power-off time control circuit
KR910007892U (en) Automatic frequency control circuit
KR900005934U (en) Automatic brightness adjustment circuit
KR890004001U (en) Automatic luminance control circuit
KR880013000U (en) Lamp automatic control circuit
KR900013824U (en) Automatic contrast control circuit
KR890004061U (en) Dimming control circuit
KR900009313U (en) Digitron's automatic brightness control circuit
KR900004064U (en) Programming automatic luminance circuit
KR910003663U (en) Still screen control circuit
KR900019550U (en) Screen brightness automatic adjustment circuit
KR890023961U (en) Automatic switching circuit
KR910012320U (en) Light output automatic control circuit
KR900004068U (en) Automatic screen brightness control circuit for TV
KR910001874U (en) Automatic luminance limit circuit
KR890005973U (en) Surround circuit automatic control circuit
KR900013822U (en) Luminance control circuit

Legal Events

Date Code Title Description
A201 Request for examination
UA0108 Application for utility model registration

Comment text: Application for Utility Model Registration

Patent event code: UA01011R08D

Patent event date: 19891229

UA0201 Request for examination

Patent event date: 19891229

Patent event code: UA02012R01D

Comment text: Request for Examination of Application

UG1501 Laying open of application
UG1604 Publication of application

Patent event code: UG16041S01I

Comment text: Decision on Publication of Application

Patent event date: 19920318

E701 Decision to grant or registration of patent right
UE0701 Decision of registration

Patent event date: 19920704

Comment text: Decision to Grant Registration

Patent event code: UE07011S01D

REGI Registration of establishment
UR0701 Registration of establishment

Patent event date: 19921008

Patent event code: UR07011E01D

Comment text: Registration of Establishment

UR1002 Payment of registration fee

Start annual number: 1

End annual number: 3

Payment date: 19921006

UR1001 Payment of annual fee

Payment date: 19950329

Start annual number: 4

End annual number: 4

UR1001 Payment of annual fee

Payment date: 19960328

Start annual number: 5

End annual number: 5

UR1001 Payment of annual fee

Payment date: 19970327

Start annual number: 6

End annual number: 6

UR1001 Payment of annual fee

Payment date: 19980327

Start annual number: 7

End annual number: 7

UR1001 Payment of annual fee

Payment date: 19990329

Start annual number: 8

End annual number: 8

UR1001 Payment of annual fee

Payment date: 20000330

Start annual number: 9

End annual number: 9

UR1001 Payment of annual fee

Payment date: 20010330

Start annual number: 10

End annual number: 10

UR1001 Payment of annual fee

Payment date: 20020329

Start annual number: 11

End annual number: 11

FPAY Annual fee payment

Payment date: 20030328

Year of fee payment: 12

UR1001 Payment of annual fee

Payment date: 20030328

Start annual number: 12

End annual number: 12

LAPS Lapse due to unpaid annual fee
UC1903 Unpaid annual fee