JPS5595142A - Access system for pattern information - Google Patents
Access system for pattern informationInfo
- Publication number
- JPS5595142A JPS5595142A JP185879A JP185879A JPS5595142A JP S5595142 A JPS5595142 A JP S5595142A JP 185879 A JP185879 A JP 185879A JP 185879 A JP185879 A JP 185879A JP S5595142 A JPS5595142 A JP S5595142A
- Authority
- JP
- Japan
- Prior art keywords
- pattern information
- disk
- track
- information
- deflector
- 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
- Digital Computer Display Output (AREA)
Abstract
PURPOSE: To obtain a pattern-information access system of high precision at low cost by allowing a track selector, which selects a track by deflecting an access beam, to deflect the beam exceeding its selection extent.
CONSTITUTION: As for access to pattern information 1, escape deflection is brought to effect by adjusting galvano-mirror photo deflector 10 so that during the rotation drive of phonogram disk 2, a beam from laser 8 will be emitted to a position outside of track range (d) in the radius direction of disk 2. Next, after the positioning of disk 2 ends, reflex mirror 101 of deflector 10 is moved to irradiate pattern information on a fixed track of disk 2 with the beam and the pattern information is sent to the photoelectric surface of pickup tube 5 and exposed. Then, deflector 10 is driven for escape deflection. At this time, information exposed to pickup tube 5 is erased. According to external commands, the pickup unit performs the above-mentioned operations repeatedly in sequence to send the pattern information to an external output unit.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP185879A JPS5595142A (en) | 1979-01-09 | 1979-01-09 | Access system for pattern information |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP185879A JPS5595142A (en) | 1979-01-09 | 1979-01-09 | Access system for pattern information |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5595142A true JPS5595142A (en) | 1980-07-19 |
Family
ID=11513235
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP185879A Pending JPS5595142A (en) | 1979-01-09 | 1979-01-09 | Access system for pattern information |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5595142A (en) |
-
1979
- 1979-01-09 JP JP185879A patent/JPS5595142A/en active Pending
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