JPS54149424A - Signal detector of television receiver - Google Patents
Signal detector of television receiverInfo
- Publication number
- JPS54149424A JPS54149424A JP5804478A JP5804478A JPS54149424A JP S54149424 A JPS54149424 A JP S54149424A JP 5804478 A JP5804478 A JP 5804478A JP 5804478 A JP5804478 A JP 5804478A JP S54149424 A JPS54149424 A JP S54149424A
- Authority
- JP
- Japan
- Prior art keywords
- secam
- pal
- output
- signals
- burst signal
- 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
- Color Television Systems (AREA)
Abstract
PURPOSE: To make the distinction between the NTSC system or the PAL system and the SECAM system accurate by causing input signals to pass through a filter circuit having a passing band and an attenuation band.
CONSTITUTION: For example, in the operation for the coming of PAL-system and SECAM-system color TV signals at input terminal 1, input signals are first inputted to gate circuit 2, and a burst signal (figure a) is outputted by burst sampling pulse 3 and is inputted to filter circuit 4. In case of PAL-system signal receiving, the filter becomes a low impedance, and the output is zero. In case of SECAM-system signal receiving, a burst signal having a large amplitude is obtained at every two horizontal scanning periods as shown figure b as the output waveform because signals of two kinds of frequency are included. This burst signal has the output branched in gate circuit 5 by gate pulse 6 (figure c) and becomes figures d and e. As a result, voltage difference is not generated at both ends of output terminals 8 and 9 at a PAL-system receiving time but is generated at a SECAM-system receiving time, so that distinction between these systems is possible.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5804478A JPS54149424A (en) | 1978-05-15 | 1978-05-15 | Signal detector of television receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5804478A JPS54149424A (en) | 1978-05-15 | 1978-05-15 | Signal detector of television receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54149424A true JPS54149424A (en) | 1979-11-22 |
JPS642000B2 JPS642000B2 (en) | 1989-01-13 |
Family
ID=13072926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5804478A Granted JPS54149424A (en) | 1978-05-15 | 1978-05-15 | Signal detector of television receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54149424A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61111271U (en) * | 1984-12-24 | 1986-07-14 | ||
JPS61111272U (en) * | 1984-12-24 | 1986-07-14 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017204752A1 (en) | 2016-05-26 | 2017-11-30 | Kimpai Lamitube Co., Ltd. | Multi layered flexible sheet with high specular gloss |
-
1978
- 1978-05-15 JP JP5804478A patent/JPS54149424A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61111271U (en) * | 1984-12-24 | 1986-07-14 | ||
JPS61111272U (en) * | 1984-12-24 | 1986-07-14 | ||
JPH0445341Y2 (en) * | 1984-12-24 | 1992-10-26 |
Also Published As
Publication number | Publication date |
---|---|
JPS642000B2 (en) | 1989-01-13 |
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