JPS55113106A - Recording and reproducing device - Google Patents
Recording and reproducing deviceInfo
- Publication number
- JPS55113106A JPS55113106A JP1874079A JP1874079A JPS55113106A JP S55113106 A JPS55113106 A JP S55113106A JP 1874079 A JP1874079 A JP 1874079A JP 1874079 A JP1874079 A JP 1874079A JP S55113106 A JPS55113106 A JP S55113106A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- jitter
- recording
- switches
- recorded
- 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
Landscapes
- Television Signal Processing For Recording (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
PURPOSE: To obtain a reproduced picture of high quality by removing a modulation noise of an AM component with the jitters in reproduction mode, by previously recording a jitter detection signal in parallel to signal recording.
CONSTITUTION: An input video signal after Hadamard's conversion 2 is FM-modulated 31W38 and recorded, channel by channel, by heads 51W58 through switches 41W48. At this time, the fixed frequency of oscillator 11 is recorded for jitter detection on a tape by head 13. In reproduction mode, signals from respective heads are demodulated by demodulators 61W68, and 18 by way of switches 41W48, and 12 and a jitter component extracted by demodulator 18 is inverted 19 and mixed 71W 78 into each demodulated signal. Consequently, jitter components included in reproduced signals of respective channels are canceled and the original signal can be obtained through time-axis correction units 81W88 and Hadamard power inverter 9.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1874079A JPS55113106A (en) | 1979-02-20 | 1979-02-20 | Recording and reproducing device |
US06/122,179 US4329718A (en) | 1979-02-20 | 1980-02-19 | Video tape recording and reproducing apparatus with line base correction |
DE3006374A DE3006374C2 (en) | 1979-02-20 | 1980-02-20 | Magnetic video tape recording and reproducing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1874079A JPS55113106A (en) | 1979-02-20 | 1979-02-20 | Recording and reproducing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55113106A true JPS55113106A (en) | 1980-09-01 |
Family
ID=11980055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1874079A Pending JPS55113106A (en) | 1979-02-20 | 1979-02-20 | Recording and reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55113106A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4458271A (en) * | 1979-03-03 | 1984-07-03 | Robert Bosch Gmbh | Method and circuit for the transmitting, recording, and/or reproducing of wide-band signals |
-
1979
- 1979-02-20 JP JP1874079A patent/JPS55113106A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4458271A (en) * | 1979-03-03 | 1984-07-03 | Robert Bosch Gmbh | Method and circuit for the transmitting, recording, and/or reproducing of wide-band signals |
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