JPS54156617A - Recorder of control signal - Google Patents
Recorder of control signalInfo
- Publication number
- JPS54156617A JPS54156617A JP6537478A JP6537478A JPS54156617A JP S54156617 A JPS54156617 A JP S54156617A JP 6537478 A JP6537478 A JP 6537478A JP 6537478 A JP6537478 A JP 6537478A JP S54156617 A JPS54156617 A JP S54156617A
- Authority
- JP
- Japan
- Prior art keywords
- pulses
- signal
- components
- circuit
- bias
- 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 reproduce control pulses with good S/N by differentiating the square wave signal being recorded as control pulses thereby attenuating the signal components which become crosstalk.
CONSTITUTION: In the case where the signal Sv from a frequency dividing circuit 52 is made to differential pulses Pd in a differentiating circuit 61, the time constant of the circuit 16 is set at the value at which the basic wave components and the higher harmonic components of the 3rd, 5th and 7th orders of the signal Sv sufficiently attenutate, whereby the pulses in which the levels of the components becoming crosstalk is small are obtained. Next, the pulses Pd are supplied to a magnetic head 57 through a bias trap 62 and the recording side contacts R of a recording- reproducing changeover switch 43 and at the same time the oscillation signal of the specified frequency from an oscillation circuit 53 is supplied as an AC bias signal to the head 57 through the contacts R of the switch 43, whereby the pulses Pd are AC-bias-recorded in the tracks of a tape 1. Thereby, the contorol pulses may be reproduced with good S/N.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6537478A JPS54156617A (en) | 1978-05-31 | 1978-05-31 | Recorder of control signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6537478A JPS54156617A (en) | 1978-05-31 | 1978-05-31 | Recorder of control signal |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54156617A true JPS54156617A (en) | 1979-12-10 |
JPS6127829B2 JPS6127829B2 (en) | 1986-06-27 |
Family
ID=13285118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6537478A Granted JPS54156617A (en) | 1978-05-31 | 1978-05-31 | Recorder of control signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54156617A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63144437U (en) * | 1986-12-17 | 1988-09-22 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5231707A (en) * | 1975-09-05 | 1977-03-10 | Hitachi Ltd | Regenerative method of recorded signals |
JPS5349404U (en) * | 1976-09-30 | 1978-04-26 |
-
1978
- 1978-05-31 JP JP6537478A patent/JPS54156617A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5231707A (en) * | 1975-09-05 | 1977-03-10 | Hitachi Ltd | Regenerative method of recorded signals |
JPS5349404U (en) * | 1976-09-30 | 1978-04-26 |
Also Published As
Publication number | Publication date |
---|---|
JPS6127829B2 (en) | 1986-06-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS57186877A (en) | Magnetic recording method | |
JPS576433A (en) | Magnetic recorder and reproducer | |
JPS5345509A (en) | Automatic tracking apparatus | |
JPS53113517A (en) | Recording/reproducing system | |
JPS54156617A (en) | Recorder of control signal | |
JPS5582573A (en) | Tape speed discriminator for magnetic recording and reproducing unit | |
JPS57190476A (en) | Video tape recorder | |
JPS52129221A (en) | Magnetic reproducing unit | |
JPS53149308A (en) | Recorder-reproducer of digital signals | |
JPS5421316A (en) | Magnetic recorder-reproducer | |
JPS5394911A (en) | Magnetic recorder-reproducer | |
JPS5417709A (en) | Changeover circuit of tape recorder | |
JPS52102012A (en) | Signal recorder/reproducer by pcm system | |
JPS5542454A (en) | Recording and reproducing method for video signal | |
JPS55108906A (en) | Magnetic recording device | |
JPS53115209A (en) | Magnetic recording method | |
JPS534416A (en) | Inserting and recording unit for vtr title | |
JPS5319003A (en) | Recording and reproducing system of endless type | |
JPS5342805A (en) | Tape recorder for appreciation and practice at music and tape used in that tape recorder | |
JPS54139516A (en) | Magnetic recorder-reproducer | |
JPS52111313A (en) | Signal recording and reproducing method | |
JPS5733423A (en) | Measuring method of electromagnetic conversion characteristic of magnetic head | |
JPS533728A (en) | Record control unit in video signal recorde and reproducing device | |
JPS53110812A (en) | Magnetic recording/reproducing method for video signal | |
JPS54103328A (en) | Bias setting method of tape recorder |