JPS54106115A - Optical information reading device - Google Patents
Optical information reading deviceInfo
- Publication number
- JPS54106115A JPS54106115A JP1372178A JP1372178A JPS54106115A JP S54106115 A JPS54106115 A JP S54106115A JP 1372178 A JP1372178 A JP 1372178A JP 1372178 A JP1372178 A JP 1372178A JP S54106115 A JPS54106115 A JP S54106115A
- Authority
- JP
- Japan
- Prior art keywords
- information
- output
- shift
- circuit
- track
- 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
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Abstract
PURPOSE: To eliminate the disturbance of the reproduced picture and thus to obtain the steady reproduced picture for the device which reads out the information by irradiating the light beams to the information recording carrier containing the spiral information track by having the shift in the radius direction of the light beam at the vertical blanking section at all times.
CONSTITUTION: The information reading device includes optical information recording carrier 1, optical pickup 16 which reads out the information on the information track and motor 15 which moves pickup 16. In such device, the position of the information track is detected by detector 8, and control circuit 13 is added to trace the information track to control the shift of the radius direction of the light beam irradiating the position of the information track. In addition, light beam shift control circuit 17 is provided to deliver the signals with which the shift of the radius direction of the beam is always given in the vertical blanking period using output (a) of demodulator 9 which demodulates the output of detector 8, output (e) of circuit 13 and the signal of motor 15 as the input. Then the output of circuit 17 is applied to circuit 13 to enable the track tracing near the balancing position of motor 14.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1372178A JPS54106115A (en) | 1978-02-08 | 1978-02-08 | Optical information reading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1372178A JPS54106115A (en) | 1978-02-08 | 1978-02-08 | Optical information reading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54106115A true JPS54106115A (en) | 1979-08-20 |
Family
ID=11841100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1372178A Pending JPS54106115A (en) | 1978-02-08 | 1978-02-08 | Optical information reading device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54106115A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5250098A (en) * | 1975-10-20 | 1977-04-21 | Hiratsuka Seisakushiyo Yuugen | Smalllsized air tool for use in hand pressing caulking and cutting |
| JPS5313309A (en) * | 1976-07-22 | 1978-02-06 | Mitsubishi Electric Corp | Optically reproducing unit |
-
1978
- 1978-02-08 JP JP1372178A patent/JPS54106115A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5250098A (en) * | 1975-10-20 | 1977-04-21 | Hiratsuka Seisakushiyo Yuugen | Smalllsized air tool for use in hand pressing caulking and cutting |
| JPS5313309A (en) * | 1976-07-22 | 1978-02-06 | Mitsubishi Electric Corp | Optically reproducing unit |
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