JPS5571380A - Screen synthesizing system - Google Patents

Screen synthesizing system

Info

Publication number
JPS5571380A
JPS5571380A JP14415778A JP14415778A JPS5571380A JP S5571380 A JPS5571380 A JP S5571380A JP 14415778 A JP14415778 A JP 14415778A JP 14415778 A JP14415778 A JP 14415778A JP S5571380 A JPS5571380 A JP S5571380A
Authority
JP
Japan
Prior art keywords
circuit
output
screen
video
signals
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
Application number
JP14415778A
Other languages
Japanese (ja)
Other versions
JPS6057792B2 (en
Inventor
Akira Kageyama
Yoji Shibata
Masaaki Ogushi
Toshiharu Kawanishi
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.)
Hitachi Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Hitachi Ltd
Nippon Telegraph and Telephone 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.)
Filing date
Publication date
Application filed by Hitachi Ltd, Nippon Telegraph and Telephone Corp filed Critical Hitachi Ltd
Priority to JP53144157A priority Critical patent/JPS6057792B2/en
Publication of JPS5571380A publication Critical patent/JPS5571380A/en
Publication of JPS6057792B2 publication Critical patent/JPS6057792B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Studio Circuits (AREA)

Abstract

PURPOSE: To make it possible to synthesize screens freely on a memory by causing levels of video signals near boundaries of an original screen and a rewritten screen to agree with each other and coding the level and writing the level in a storage unit.
CONSTITUTION: In storage of video signals of video source 12 into frame memory 15, if the output of A/D converter 16 agrees with contents x1 of register 19, namely, coordinates of the lower limit of the boundary part of a screen, for example, white- level signals are inserted to video signal substitution circuit 13 in stead of signals of video source 12, and the output of circuit 16 is outputted up to contents x2 of register 20, namely, the upper limit of coordinates of the boundary part. Coding circuit 14 takes correlation of each picture element in the scanning direction in respect to the output of circuit 13 and codes it. Frame memory 15 stores one-screen components of coded data. Video signals of video source 12' are written into memory 15 only in a range of the output of circuit 16 over xi (x1≤xi≤x2). Synthesized picture data obtained in this manner is stored in picture file 8.
COPYRIGHT: (C)1980,JPO&Japio
JP53144157A 1978-11-24 1978-11-24 Screen composition method Expired JPS6057792B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53144157A JPS6057792B2 (en) 1978-11-24 1978-11-24 Screen composition method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53144157A JPS6057792B2 (en) 1978-11-24 1978-11-24 Screen composition method

Publications (2)

Publication Number Publication Date
JPS5571380A true JPS5571380A (en) 1980-05-29
JPS6057792B2 JPS6057792B2 (en) 1985-12-17

Family

ID=15355517

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53144157A Expired JPS6057792B2 (en) 1978-11-24 1978-11-24 Screen composition method

Country Status (1)

Country Link
JP (1) JPS6057792B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57142077A (en) * 1981-02-27 1982-09-02 Toshiba Corp Boarder signal generator
JPS62274880A (en) * 1986-05-21 1987-11-28 Canon Inc Reproducing device
JPS63256065A (en) * 1987-04-13 1988-10-24 Sony Corp Video processor unit
JPH01264377A (en) * 1988-04-15 1989-10-20 Hitachi Ltd Video printer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57142077A (en) * 1981-02-27 1982-09-02 Toshiba Corp Boarder signal generator
JPS62274880A (en) * 1986-05-21 1987-11-28 Canon Inc Reproducing device
JPS63256065A (en) * 1987-04-13 1988-10-24 Sony Corp Video processor unit
JPH01264377A (en) * 1988-04-15 1989-10-20 Hitachi Ltd Video printer

Also Published As

Publication number Publication date
JPS6057792B2 (en) 1985-12-17

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