JPS57162890A - Information signal recorder - Google Patents
Information signal recorderInfo
- Publication number
- JPS57162890A JPS57162890A JP56049005A JP4900581A JPS57162890A JP S57162890 A JPS57162890 A JP S57162890A JP 56049005 A JP56049005 A JP 56049005A JP 4900581 A JP4900581 A JP 4900581A JP S57162890 A JPS57162890 A JP S57162890A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- voltage
- synchronizing signal
- circuit
- line
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Optical Recording Or Reproduction (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
PURPOSE:To arrange the recording region of a vertical synchronizing signal to a prescribed angle position, by operating a recording start device when synchronism is taken with a frame synchronizing signal and starting the recording. CONSTITUTION:A video signal is applied to an optical modulator 6 from a video signal supplying circuit 8 and an optical modulation beam is projected to a recording medium 1 from a head 4. A comparison amplifying circuit 12 compares a voltage of a reference voltage source 13 with a control voltage of a line 14 to drive a motor 3. When the recording is started, a synchronizing signal is generated from a synchronizing detection circuit 35 to turn off a switch 21 and to turn on a switch 23. A fixed voltage is given from a stabilized voltage supply circuit 22 to the line 14 in place of a speed detection voltage and a motor M rotates at a prescribed rotating speed. Thus, a vertical synchronizing signal is recorded on a radial straight line of the medium 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56049005A JPS57162890A (en) | 1981-03-31 | 1981-03-31 | Information signal recorder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56049005A JPS57162890A (en) | 1981-03-31 | 1981-03-31 | Information signal recorder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57162890A true JPS57162890A (en) | 1982-10-06 |
JPS6253111B2 JPS6253111B2 (en) | 1987-11-09 |
Family
ID=12819051
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56049005A Granted JPS57162890A (en) | 1981-03-31 | 1981-03-31 | Information signal recorder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57162890A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60126978A (en) * | 1983-12-14 | 1985-07-06 | Hitachi Ltd | Motor servo circuit of record and reproduction type video disk player |
JPS6141282A (en) * | 1984-08-02 | 1986-02-27 | Matsushita Electric Ind Co Ltd | Video signal recorder |
JPS6140081U (en) * | 1984-08-13 | 1986-03-13 | ソニー株式会社 | spindle servo device |
JPS62269483A (en) * | 1986-05-16 | 1987-11-21 | Canon Inc | Video signal reproducing device |
JPS6352361U (en) * | 1986-09-24 | 1988-04-08 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5238907A (en) * | 1975-09-23 | 1977-03-25 | Matsushita Electric Ind Co Ltd | Magnetic recording reproductin device of disc type |
JPS5241505A (en) * | 1975-09-29 | 1977-03-31 | Matsushita Electric Ind Co Ltd | Recorder/player |
JPS5284710A (en) * | 1975-12-31 | 1977-07-14 | Matsushita Electric Ind Co Ltd | Head drive type magnetic recording and reproduction apparatus |
JPS52114304A (en) * | 1976-03-19 | 1977-09-26 | Rca Corp | Optical recorder reproducer |
JPS52126201A (en) * | 1976-03-19 | 1977-10-22 | Rca Corp | Speed and phase controller for disk recorder reproducer |
JPS5528122A (en) * | 1978-08-14 | 1980-02-28 | Fujitsu Ltd | Control system for multiplex system |
-
1981
- 1981-03-31 JP JP56049005A patent/JPS57162890A/en active Granted
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5238907A (en) * | 1975-09-23 | 1977-03-25 | Matsushita Electric Ind Co Ltd | Magnetic recording reproductin device of disc type |
JPS5241505A (en) * | 1975-09-29 | 1977-03-31 | Matsushita Electric Ind Co Ltd | Recorder/player |
JPS5284710A (en) * | 1975-12-31 | 1977-07-14 | Matsushita Electric Ind Co Ltd | Head drive type magnetic recording and reproduction apparatus |
JPS52114304A (en) * | 1976-03-19 | 1977-09-26 | Rca Corp | Optical recorder reproducer |
JPS52126201A (en) * | 1976-03-19 | 1977-10-22 | Rca Corp | Speed and phase controller for disk recorder reproducer |
JPS5528122A (en) * | 1978-08-14 | 1980-02-28 | Fujitsu Ltd | Control system for multiplex system |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60126978A (en) * | 1983-12-14 | 1985-07-06 | Hitachi Ltd | Motor servo circuit of record and reproduction type video disk player |
JPS6141282A (en) * | 1984-08-02 | 1986-02-27 | Matsushita Electric Ind Co Ltd | Video signal recorder |
JPH0511473B2 (en) * | 1984-08-02 | 1993-02-15 | Matsushita Electric Ind Co Ltd | |
JPS6140081U (en) * | 1984-08-13 | 1986-03-13 | ソニー株式会社 | spindle servo device |
JPH0438630Y2 (en) * | 1984-08-13 | 1992-09-09 | ||
JPS62269483A (en) * | 1986-05-16 | 1987-11-21 | Canon Inc | Video signal reproducing device |
JPS6352361U (en) * | 1986-09-24 | 1988-04-08 |
Also Published As
Publication number | Publication date |
---|---|
JPS6253111B2 (en) | 1987-11-09 |
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