JPS5497327A - Distortion detector - Google Patents
Distortion detectorInfo
- Publication number
- JPS5497327A JPS5497327A JP449378A JP449378A JPS5497327A JP S5497327 A JPS5497327 A JP S5497327A JP 449378 A JP449378 A JP 449378A JP 449378 A JP449378 A JP 449378A JP S5497327 A JPS5497327 A JP S5497327A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- terminal
- output
- limiter
- 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
Abstract
PURPOSE: To make it possible to detect easily a distortional component in a television signal, etc., with variable frequency distribution by taking a measurement of only one part of the signal appearing periodically.
CONSTITUTION: A luminance signal applied to terminal 80 has its carrier FM- modulated by modulator 81. This FM-modulated output is added by adder circuit 84 to a color signal from terminal 83 and then amplitude-liminted by limiter 84. The luminance signal from terminal 80 has its horizontal synchronizing signal separated by synchronous separator circuit 43, thereby generating horizontal pulses. Horizontal pulses gate an output from limiter 84 by being supplied to gate circuit 44. By horizontal pulses, converter circuit 45 converts the envelope of the output signal after passing through gate circuit 44 into square-law sine-wave characteristics and the signal is supplied to spectrogram analyzer 46, thereby taking a measurement of the distortion of the signal.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP449378A JPS5497327A (en) | 1978-01-18 | 1978-01-18 | Distortion detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP449378A JPS5497327A (en) | 1978-01-18 | 1978-01-18 | Distortion detector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5497327A true JPS5497327A (en) | 1979-08-01 |
JPS61760B2 JPS61760B2 (en) | 1986-01-10 |
Family
ID=11585596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP449378A Granted JPS5497327A (en) | 1978-01-18 | 1978-01-18 | Distortion detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5497327A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63155990A (en) * | 1986-12-19 | 1988-06-29 | Matsushita Electric Ind Co Ltd | Method for measuring intermediate frequency disturbance |
-
1978
- 1978-01-18 JP JP449378A patent/JPS5497327A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63155990A (en) * | 1986-12-19 | 1988-06-29 | Matsushita Electric Ind Co Ltd | Method for measuring intermediate frequency disturbance |
Also Published As
Publication number | Publication date |
---|---|
JPS61760B2 (en) | 1986-01-10 |
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