JPS5545273A - Focus control circuit - Google Patents

Focus control circuit

Info

Publication number
JPS5545273A
JPS5545273A JP11895078A JP11895078A JPS5545273A JP S5545273 A JPS5545273 A JP S5545273A JP 11895078 A JP11895078 A JP 11895078A JP 11895078 A JP11895078 A JP 11895078A JP S5545273 A JPS5545273 A JP S5545273A
Authority
JP
Japan
Prior art keywords
outline
signals
mixed
video signals
soft
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.)
Pending
Application number
JP11895078A
Other languages
Japanese (ja)
Inventor
Junichi Yamanaka
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11895078A priority Critical patent/JPS5545273A/en
Publication of JPS5545273A publication Critical patent/JPS5545273A/en
Pending legal-status Critical Current

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  • Studio Circuits (AREA)

Abstract

PURPOSE: To make it possible to obtain easily a desired focus effect and realize a small-size camera head by generating soft outline signals for weakening the outline of video signals separately from sharp outline signals.
CONSTITUTION: In the TV camera unit, outline signal generation circuit 20 generates sharp outline signals (b), which strengthens the outline of an object on the screen corresponding to input video signals (a) to improve visually the resolution of the picture, and soft outline signals (d) which weakens the outline of the object to lower visually the resolution of the picture and generate blooming, and these outline signal outputs are led to a color coder after being mixed into video signals by outline signal mixer circuits 17∼19. The change of rise and break parts of video signals is rapid as shown in (c) when signals (b) are mixed with (a), and meanwhile, the change of rise and break parts is gentle as shown in (e) when signals (d) are mixed with (a), so that soft-focus pictures can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP11895078A 1978-09-27 1978-09-27 Focus control circuit Pending JPS5545273A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11895078A JPS5545273A (en) 1978-09-27 1978-09-27 Focus control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11895078A JPS5545273A (en) 1978-09-27 1978-09-27 Focus control circuit

Publications (1)

Publication Number Publication Date
JPS5545273A true JPS5545273A (en) 1980-03-29

Family

ID=14749258

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11895078A Pending JPS5545273A (en) 1978-09-27 1978-09-27 Focus control circuit

Country Status (1)

Country Link
JP (1) JPS5545273A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6057779A (en) * 1983-09-08 1985-04-03 Matsushita Electric Ind Co Ltd Television signal processing circuit
JPH04290086A (en) * 1990-10-30 1992-10-14 Gold Star Co Ltd Picture control system of video tape recorder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6057779A (en) * 1983-09-08 1985-04-03 Matsushita Electric Ind Co Ltd Television signal processing circuit
JPH04290086A (en) * 1990-10-30 1992-10-14 Gold Star Co Ltd Picture control system of video tape recorder

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