JPS5477112A - Information signal reproducer - Google Patents
Information signal reproducerInfo
- Publication number
- JPS5477112A JPS5477112A JP14328577A JP14328577A JPS5477112A JP S5477112 A JPS5477112 A JP S5477112A JP 14328577 A JP14328577 A JP 14328577A JP 14328577 A JP14328577 A JP 14328577A JP S5477112 A JPS5477112 A JP S5477112A
- Authority
- JP
- Japan
- Prior art keywords
- address signals
- track
- memory
- stored
- compared
- 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
Landscapes
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Moving Of Head For Track Selection And Changing (AREA)
Abstract
PURPOSE: To effect the track location of high quality by consecutively comparing the track numbers read out and the track numbers designated from their upper units so as to control the location moving speed of a scanner.
CONSTITUTION: The address signals detected by a pickup 3 and corresponding to a track number are stored in a memory 6 and then transferred to a memory 7 so that they are compared by a comparator 8 with the subsequent address signals which are to be stored in the memory 6. If both of the signals are identical at their upper units, a gate 9 is opened by the compared output of the comparator 8. Then, the upper units of the address signals stored in the memory 6 are compared by a comparator 10 with the upper unit of the address signals of the designated track which is designated by a key board 11 and stored in a memory 12 so that the scanning operation of the pickup 3 is controlled at a high speed through a control circuit 13. Likewise, the lower units of the address signals of the reading track and the preset address signals are compared so that the pickup is gradually controlled to a lower speed to effectively use the reading address signals, thus making it possible to effect the track location having less error and high quality.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14328577A JPS5921102B2 (en) | 1977-12-01 | 1977-12-01 | Information signal reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14328577A JPS5921102B2 (en) | 1977-12-01 | 1977-12-01 | Information signal reproducing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5477112A true JPS5477112A (en) | 1979-06-20 |
JPS5921102B2 JPS5921102B2 (en) | 1984-05-17 |
Family
ID=15335165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14328577A Expired JPS5921102B2 (en) | 1977-12-01 | 1977-12-01 | Information signal reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5921102B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6216280A (en) * | 1985-07-16 | 1987-01-24 | Sharp Corp | Video disk player |
JPS6218681A (en) * | 1985-07-16 | 1987-01-27 | Sharp Corp | Video disc player |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6285701U (en) * | 1985-11-14 | 1987-06-01 |
-
1977
- 1977-12-01 JP JP14328577A patent/JPS5921102B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6216280A (en) * | 1985-07-16 | 1987-01-24 | Sharp Corp | Video disk player |
JPS6218681A (en) * | 1985-07-16 | 1987-01-27 | Sharp Corp | Video disc player |
Also Published As
Publication number | Publication date |
---|---|
JPS5921102B2 (en) | 1984-05-17 |
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