JPS5623079A - Television picture receiver - Google Patents
Television picture receiverInfo
- Publication number
- JPS5623079A JPS5623079A JP9825079A JP9825079A JPS5623079A JP S5623079 A JPS5623079 A JP S5623079A JP 9825079 A JP9825079 A JP 9825079A JP 9825079 A JP9825079 A JP 9825079A JP S5623079 A JPS5623079 A JP S5623079A
- Authority
- JP
- Japan
- Prior art keywords
- signals
- signal
- circuit
- sent
- decoder
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
- H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE:To obtain easily two screens via an A/D converter, by producing the simultaneous signal from the sequential signal composed of the luminance and color difference signals and then extracting the three primary color signals. CONSTITUTION:Main signal SA sent from video wave detection circuit 3 is applied to decoder 5 and then demodulated to obtain signals Y, R-Y and B-Y each. These signals are applied to matrix circuit 6 to produce signals RA, GA and BA each which are applied to mixing circuit 18. On the other hand, secondary signal SB sent from video wave detection circuit 9 in the secondary screen signal system is applied to decoder 9 to obtain signals Y, R-Y and B-Y each. These signals are applied to signal processing circuit 12 to receive the signal process. Thus the compressed simultaneous signals of each of Y and R-Y plus Y and B-Y each are extracted every field out of circuit 12 and then applied to matrix circuit 13 to obtain signals RB, GB and BB each. These signals are applied to circuit 18. Then each signal is inserted into the fixed blanking period via the signal sent from control circuit 19. Thus the composite signal is produced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9825079A JPS5623079A (en) | 1979-08-01 | 1979-08-01 | Television picture receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9825079A JPS5623079A (en) | 1979-08-01 | 1979-08-01 | Television picture receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5623079A true JPS5623079A (en) | 1981-03-04 |
JPH0147954B2 JPH0147954B2 (en) | 1989-10-17 |
Family
ID=14214702
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9825079A Granted JPS5623079A (en) | 1979-08-01 | 1979-08-01 | Television picture receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5623079A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62234491A (en) * | 1986-03-04 | 1987-10-14 | Nec Home Electronics Ltd | Video signal generating circuit for small screen |
JPS63164590A (en) * | 1986-12-10 | 1988-07-07 | ノキア(ドイチュラント)ゲーエムベーハー | Video tape recorder with second video signal path |
-
1979
- 1979-08-01 JP JP9825079A patent/JPS5623079A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62234491A (en) * | 1986-03-04 | 1987-10-14 | Nec Home Electronics Ltd | Video signal generating circuit for small screen |
JPS63164590A (en) * | 1986-12-10 | 1988-07-07 | ノキア(ドイチュラント)ゲーエムベーハー | Video tape recorder with second video signal path |
Also Published As
Publication number | Publication date |
---|---|
JPH0147954B2 (en) | 1989-10-17 |
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