JPS56156075A - Information reproducing system - Google Patents
Information reproducing systemInfo
- Publication number
- JPS56156075A JPS56156075A JP5964180A JP5964180A JPS56156075A JP S56156075 A JPS56156075 A JP S56156075A JP 5964180 A JP5964180 A JP 5964180A JP 5964180 A JP5964180 A JP 5964180A JP S56156075 A JPS56156075 A JP S56156075A
- Authority
- JP
- Japan
- Prior art keywords
- jumping
- signal
- information
- horizontal
- supplied
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/7605—Television signal recording on discs or drums
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
Abstract
PURPOSE:To reduce the access time of a 1-track jumping scan, by synchronizing the jumping timing of an information track and the horizontal synchronous signal of a record information when scanning the information recorded on an optical recording medium and then completing the jumping action within one section of horizontal scanning. CONSTITUTION:The information reproduction signal supplied from a photodetector 4 is demodulated and supplied to a demodulator 21 to obtain a video signal when a scan is given concentrically or spirally to an information track that is recorded on a disk-type optical recording medium which is driven rotatively. The video signal is supplied to a horizontal synchronous separating circuit 22 to give a separation to the horizontal synchronous signal. Then a pulse is produced by a jumping drive signal generator 23 and based on a jumping command signal which is synchronous with the horizontal synchronous signal, and applied to a galvano-mirrow of a beam deflecting device 24. Thus a jumping action is completed within a section of horizontal scanning.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5964180A JPS56156075A (en) | 1980-05-06 | 1980-05-06 | Information reproducing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5964180A JPS56156075A (en) | 1980-05-06 | 1980-05-06 | Information reproducing system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56156075A true JPS56156075A (en) | 1981-12-02 |
Family
ID=13119041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5964180A Pending JPS56156075A (en) | 1980-05-06 | 1980-05-06 | Information reproducing system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56156075A (en) |
-
1980
- 1980-05-06 JP JP5964180A patent/JPS56156075A/en active Pending
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