JPS54112122A - Picture display unit - Google Patents
Picture display unitInfo
- Publication number
- JPS54112122A JPS54112122A JP2007278A JP2007278A JPS54112122A JP S54112122 A JPS54112122 A JP S54112122A JP 2007278 A JP2007278 A JP 2007278A JP 2007278 A JP2007278 A JP 2007278A JP S54112122 A JPS54112122 A JP S54112122A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- read
- channel
- 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.)
- Pending
Links
Landscapes
- Studio Circuits (AREA)
Abstract
PURPOSE: To display pictures for two channels at the same time on the video screen of one TV receiver varying the area of the video screen occupied by one channel, by varying a lateralaxis time period by varying a read frequency.
CONSTITUTION: This unit is provided with circuits from tuners 8 and 12 receiving picture signals of different channels A and B at the same time to video detection curcuits 10 and 14, and also equipped with memory circuit 20 stored with all of or some of video information of the picture signal of channel B, and control circuit 18 which can control the read sequence, read frequency and read timing of picture signals from this circuit 20. Further, this unit is provided with clock pulse generating circuit 19 connected to circuit 18 and removal circuit 21 which is controlling the read sequence of picture signals by stopping the transmission of signals read excessively in one horizontal period in order to vary the occupied area of the video screen of channel B by receiving the output of circuit 21 and the signal of channel A, thereby displaying video signals of channels A and B both on the CRT through composing selector circuit 22 at the same time.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007278A JPS54112122A (en) | 1978-02-22 | 1978-02-22 | Picture display unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007278A JPS54112122A (en) | 1978-02-22 | 1978-02-22 | Picture display unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54112122A true JPS54112122A (en) | 1979-09-01 |
Family
ID=12016888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007278A Pending JPS54112122A (en) | 1978-02-22 | 1978-02-22 | Picture display unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54112122A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5848180U (en) * | 1981-09-25 | 1983-03-31 | 新明和工業株式会社 | Hairstyle selection device |
JPS5859671A (en) * | 1981-10-06 | 1983-04-08 | Toshiba Corp | Picture signal processing circuit |
JPS61131975A (en) * | 1984-11-30 | 1986-06-19 | Pioneer Electronic Corp | Picture processor |
JPS61131976A (en) * | 1984-11-30 | 1986-06-19 | Pioneer Electronic Corp | Picture processor |
JPS63287276A (en) * | 1987-05-20 | 1988-11-24 | Fujitsu Ltd | Picture storage device |
JPS63290753A (en) * | 1987-05-25 | 1988-11-28 | Hitachi Ltd | Video printer |
JPS6480178A (en) * | 1987-09-22 | 1989-03-27 | Ricoh Kk | Television picture storage device |
JPH01157176A (en) * | 1987-07-28 | 1989-06-20 | Sanyo Electric Co Ltd | Digital television receiver and data processor to be used by receiver |
JPH0282765A (en) * | 1988-09-19 | 1990-03-23 | Sanyo Electric Co Ltd | Double screen display control circuit and video equipment provided with same |
JPH02298176A (en) * | 1988-07-13 | 1990-12-10 | Seiko Epson Corp | Picture processing unit |
JPH0690414A (en) * | 1991-05-31 | 1994-03-29 | Victor Co Of Japan Ltd | Picture in picture circuit |
US5680178A (en) * | 1988-07-13 | 1997-10-21 | Seiko Epson Corporation | Video multiplexing system for superimposition of scalable video data streams upon a background video data stream |
-
1978
- 1978-02-22 JP JP2007278A patent/JPS54112122A/en active Pending
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5848180U (en) * | 1981-09-25 | 1983-03-31 | 新明和工業株式会社 | Hairstyle selection device |
JPS5859671A (en) * | 1981-10-06 | 1983-04-08 | Toshiba Corp | Picture signal processing circuit |
JPS61131975A (en) * | 1984-11-30 | 1986-06-19 | Pioneer Electronic Corp | Picture processor |
JPS61131976A (en) * | 1984-11-30 | 1986-06-19 | Pioneer Electronic Corp | Picture processor |
JPS63287276A (en) * | 1987-05-20 | 1988-11-24 | Fujitsu Ltd | Picture storage device |
JPS63290753A (en) * | 1987-05-25 | 1988-11-28 | Hitachi Ltd | Video printer |
JPH01157176A (en) * | 1987-07-28 | 1989-06-20 | Sanyo Electric Co Ltd | Digital television receiver and data processor to be used by receiver |
JPS6480178A (en) * | 1987-09-22 | 1989-03-27 | Ricoh Kk | Television picture storage device |
US5680178A (en) * | 1988-07-13 | 1997-10-21 | Seiko Epson Corporation | Video multiplexing system for superimposition of scalable video data streams upon a background video data stream |
JPH02298176A (en) * | 1988-07-13 | 1990-12-10 | Seiko Epson Corp | Picture processing unit |
US5793439A (en) * | 1988-07-13 | 1998-08-11 | Seiko Epson Corporation | Image control device for use in a video multiplexing system for superimposition of scalable video data streams upon a background video data stream |
US5929870A (en) * | 1988-07-13 | 1999-07-27 | Seiko Epson Corporation | Video multiplexing system for superimposition of scalable video data streams upon a background video data stream |
US5929933A (en) * | 1988-07-13 | 1999-07-27 | Seiko Epson Corporation | Video multiplexing system for superimposition of scalable video data streams upon a background video data stream |
US5973706A (en) * | 1988-07-13 | 1999-10-26 | Seiko Epson Corporation | Video multiplexing system for superimposition of scalable video data streams upon a background video data stream |
US5986633A (en) * | 1988-07-13 | 1999-11-16 | Seiko Epson Corporation | Video multiplexing system for superimposition of scalable video data streams upon a background video data stream |
USRE37879E1 (en) | 1988-07-13 | 2002-10-15 | Seiko Epson Corporation | Image control device for use in a video multiplexing system for superimposition of scalable video data streams upon a background video data stream |
JPH0683394B2 (en) * | 1988-09-19 | 1994-10-19 | 三洋電機株式会社 | Multi-screen display control circuit and video equipment including the same |
JPH0282765A (en) * | 1988-09-19 | 1990-03-23 | Sanyo Electric Co Ltd | Double screen display control circuit and video equipment provided with same |
JPH0690414A (en) * | 1991-05-31 | 1994-03-29 | Victor Co Of Japan Ltd | Picture in picture circuit |
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