JPS54116123A - Transmission system for still picture - Google Patents
Transmission system for still pictureInfo
- Publication number
- JPS54116123A JPS54116123A JP2373978A JP2373978A JPS54116123A JP S54116123 A JPS54116123 A JP S54116123A JP 2373978 A JP2373978 A JP 2373978A JP 2373978 A JP2373978 A JP 2373978A JP S54116123 A JPS54116123 A JP S54116123A
- Authority
- JP
- Japan
- Prior art keywords
- picture
- transmission
- rewrite
- video signal
- alternately
- 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
Abstract
PURPOSE: To avoid flicker on picture during the replacement of picture, by alternately reading out the video signal equivalent to one horizontal scanning period from two field memories in the transmission of video signal between transmission and reception.
CONSTITUTION: The video signal stored in an even and odd number of field memorises 7a and 7b (picture memory) of the transmission and reception unit is read out alternately for one horizontal scanning period based on the readout address designation register 9, is transmitted to the transmission path 13 via the data selector 8, parallel serial converter 11, and MODEM 12, and it is alternately written in an even and odd number memory of the receiver. Since the system like this is adopted, when the received picture is newly rewritten, the rewrite progresses simultaneously for the both even and odd fields. For example, an alphabet A is rewritten into B, then rewrite is made sequentially from the upper part of screen (state 40). Different from conventional methods, no flicker is caused on picture as conventional cases (state 50) and stable picture can be obtained during rewrite.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2373978A JPS54116123A (en) | 1978-03-02 | 1978-03-02 | Transmission system for still picture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2373978A JPS54116123A (en) | 1978-03-02 | 1978-03-02 | Transmission system for still picture |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54116123A true JPS54116123A (en) | 1979-09-10 |
Family
ID=12118668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2373978A Pending JPS54116123A (en) | 1978-03-02 | 1978-03-02 | Transmission system for still picture |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54116123A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4829380A (en) * | 1987-12-09 | 1989-05-09 | General Motors Corporation | Video processor |
-
1978
- 1978-03-02 JP JP2373978A patent/JPS54116123A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4829380A (en) * | 1987-12-09 | 1989-05-09 | General Motors Corporation | Video processor |
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