JPS5654607A - Record playback mode control device - Google Patents
Record playback mode control deviceInfo
- Publication number
- JPS5654607A JPS5654607A JP13068179A JP13068179A JPS5654607A JP S5654607 A JPS5654607 A JP S5654607A JP 13068179 A JP13068179 A JP 13068179A JP 13068179 A JP13068179 A JP 13068179A JP S5654607 A JPS5654607 A JP S5654607A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- post
- impedance
- low
- bias current
- 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
Abstract
PURPOSE: To realize a good-quality post-recording through a simple constitution and operation, by forming a low-impedance post-recording detecting circuit with the capacitors having a prescribed connection, the logic element and the like.
CONSTITUTION: The switches S1WS6 are switched according to the operation of the post-recording operation element 14, and thus the transistors Q1 and Q2 of the post-recording detecting circuit A are turned on. As a result, the bias current flows through the low-impedance route formed with the capacitor 31 plus the transistors Q1 and Q2 for the positive half cycle of the recording AC bias current supplied from the current source 23. On the other hand, the bias current flows through the low-impedance routh passing through the capacitor 31 and the collector and the base of the transistor Q1 for the period of the negative half cycle since the capactiror 32 and the resistance 33 are connected in parallel to the base of the Q1. In this way, a good-quarity post-recording is possible for the recording by the 1st head 15 and the reproduction by the 2nd head 16 through a simple constitution and operation.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13068179A JPS5654607A (en) | 1979-10-09 | 1979-10-09 | Record playback mode control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13068179A JPS5654607A (en) | 1979-10-09 | 1979-10-09 | Record playback mode control device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5654607A true JPS5654607A (en) | 1981-05-14 |
Family
ID=15040062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13068179A Pending JPS5654607A (en) | 1979-10-09 | 1979-10-09 | Record playback mode control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5654607A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3502744A1 (en) * | 1984-06-27 | 1986-01-09 | Nippon Mektron, Ltd., Tokio/Tokyo | FLEXIBLE PCB AND METHOD FOR THEIR PRODUCTION |
-
1979
- 1979-10-09 JP JP13068179A patent/JPS5654607A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3502744A1 (en) * | 1984-06-27 | 1986-01-09 | Nippon Mektron, Ltd., Tokio/Tokyo | FLEXIBLE PCB AND METHOD FOR THEIR PRODUCTION |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS535607A (en) | Magnetic reproduction device | |
JPS5728483A (en) | Playback device for disc shape information recording medium | |
JPS56130861A (en) | Reproducing device for information recording medium | |
JPS5654607A (en) | Record playback mode control device | |
JPS57140086A (en) | Recording and reproducing circuit for vtr | |
JPS52129221A (en) | Magnetic reproducing unit | |
KR910001826Y1 (en) | Tracking control circuit of picture signal recording and play back device | |
JPS5275426A (en) | Video signal recording apparatus | |
JPS57210462A (en) | Control circuit of cassette tape recorder | |
JPS57120213A (en) | Digital recording and reproducing device | |
KR860000364Y1 (en) | Switching circuit for automatic music selecting and editing | |
JPS5288008A (en) | Magnetic recording and reproduction apparatus | |
KR870000985Y1 (en) | Recording adjustment device of video tape recorder | |
JPS55157139A (en) | Magnetic recording and reproducing device | |
JPH01149204A (en) | Voltage boosting circuit | |
JPS54128342A (en) | Electrostatic recorder | |
JPH0741216Y2 (en) | Semiconductor integrated circuit | |
JPS5234616A (en) | Magnetic video recording reproduction equipment | |
SU458032A1 (en) | Device for marking and retrieving information on magnetic tape | |
JPS554728A (en) | Recording medium feeding speed switching unit | |
KR790001009B1 (en) | Pulse signal formation circuit | |
KR910002996Y1 (en) | Level synchronizing signal detecting circuit for digital audio tape recorder | |
JPS5674851A (en) | Electronic switch of tape recorder | |
JPS5517817A (en) | Feed speed control device for recording media | |
JPS5986055U (en) | magnetic recording and reproducing device |