JPS56149877A - Delaying circuit of recording and reproducing equipment - Google Patents
Delaying circuit of recording and reproducing equipmentInfo
- Publication number
- JPS56149877A JPS56149877A JP5285480A JP5285480A JPS56149877A JP S56149877 A JPS56149877 A JP S56149877A JP 5285480 A JP5285480 A JP 5285480A JP 5285480 A JP5285480 A JP 5285480A JP S56149877 A JPS56149877 A JP S56149877A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- reproducing
- picture signal
- output
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/93—Regeneration of the television signal or of selected parts thereof
- H04N5/94—Signal drop-out compensation
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
PURPOSE:To stabilize the operation in case of the reproduction mode and make the demodulation of a signal, etc. satisfactory at the time of special reproduction, by making a delay time of the 1H delaying circuit which is used for drop-out compensation, demodulation of a linear sequential signal, etc., equal to the horizontal scanning period of a reproducing picture signal at all times. CONSTITUTION:A picture signal from the FM reproducing signal input terminal 1 is demodulated by the demodulating circuit 3, and the reproducing picture is usually output to the output terminal 2 through the switching circuit 6. Also, when drop-out is detected by the drop-out detecting circuit 5, the circuit 6 is switched by the variable delaying circuit 7, and the reproducing picture signal which has been delayed by 1H is output from the output terminal 2. In this case, a refresh signal is sampled from the reproducing picture signal by the gate circuit 11, is provided to the FM detecting circuit 9, a frequency variation of the refresh signal is detected, and its frequency variation is integrated by the integrating circuit 8. And, a delay time of the circuit 7 is controlled by the output from the circuit 8, the delay time is always made equal to the horizontal scanning period of the reproducing picture signal, and the operation in case of a special mode is stabilized.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5285480A JPS56149877A (en) | 1980-04-23 | 1980-04-23 | Delaying circuit of recording and reproducing equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5285480A JPS56149877A (en) | 1980-04-23 | 1980-04-23 | Delaying circuit of recording and reproducing equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56149877A true JPS56149877A (en) | 1981-11-19 |
Family
ID=12926435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5285480A Pending JPS56149877A (en) | 1980-04-23 | 1980-04-23 | Delaying circuit of recording and reproducing equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56149877A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5283026A (en) * | 1975-12-29 | 1977-07-11 | Rca Corp | Combblike filter |
-
1980
- 1980-04-23 JP JP5285480A patent/JPS56149877A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5283026A (en) * | 1975-12-29 | 1977-07-11 | Rca Corp | Combblike filter |
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