JPS558179A - Character broadcast receiving device - Google Patents
Character broadcast receiving deviceInfo
- Publication number
- JPS558179A JPS558179A JP8176178A JP8176178A JPS558179A JP S558179 A JPS558179 A JP S558179A JP 8176178 A JP8176178 A JP 8176178A JP 8176178 A JP8176178 A JP 8176178A JP S558179 A JPS558179 A JP S558179A
- Authority
- JP
- Japan
- Prior art keywords
- information
- buffer
- signal
- circuit
- character
- 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
Links
Landscapes
- Television Systems (AREA)
Abstract
PURPOSE: To reduce the signal process speed and thus to increase the stability by providing the means which samples the information piled in the vertical flyback time of the TV signal for memorization into the memory and then separates and identifies various types of information from the sampled and memorized information
CONSTITUTION: The information piled in the vertical flyback time of the TV signal and necessary for transmission of the characters and the like is sampled through sampling circuit 20 and then supplied to input buffer 3 and start pulse detection circuit 4. The reading clock is supplied to buffer 3 from reading clock generation circuit 7 by the command given from circuit 4, and the character information is read into buffer 3. When the reading of buffer 3 ends, the program code is read out and then compared with the data of program selection circuit 17 at decision circuit 13 to decide whether the character signal of buffer 3 is the control line or the pattern line through gate controller 15 and line decision circuit 14. And the case of the control line, the information of buffer 3 is stored in character signal memory 23, and in color signal memory 24 in the case of the pattern line respectively. After this, the information is displayed at CRT via the display address and the display clock signal.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53081761A JPS586430B2 (en) | 1978-07-04 | 1978-07-04 | Teletext receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53081761A JPS586430B2 (en) | 1978-07-04 | 1978-07-04 | Teletext receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS558179A true JPS558179A (en) | 1980-01-21 |
JPS586430B2 JPS586430B2 (en) | 1983-02-04 |
Family
ID=13755426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53081761A Expired JPS586430B2 (en) | 1978-07-04 | 1978-07-04 | Teletext receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS586430B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56114488A (en) * | 1980-02-13 | 1981-09-09 | Matsushita Electric Ind Co Ltd | Character information receiver |
WO1983000789A1 (en) * | 1981-08-27 | 1983-03-03 | Maeda, Satoru | Image display unit |
-
1978
- 1978-07-04 JP JP53081761A patent/JPS586430B2/en not_active Expired
Non-Patent Citations (1)
Title |
---|
NATIONAL TECHNICAL REPORT=1975 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56114488A (en) * | 1980-02-13 | 1981-09-09 | Matsushita Electric Ind Co Ltd | Character information receiver |
JPS6123710B2 (en) * | 1980-02-13 | 1986-06-06 | Matsushita Electric Ind Co Ltd | |
WO1983000789A1 (en) * | 1981-08-27 | 1983-03-03 | Maeda, Satoru | Image display unit |
Also Published As
Publication number | Publication date |
---|---|
JPS586430B2 (en) | 1983-02-04 |
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