JPS57172573A - High-speed address information search system of recording information reproducing device - Google Patents
High-speed address information search system of recording information reproducing deviceInfo
- Publication number
- JPS57172573A JPS57172573A JP5804681A JP5804681A JPS57172573A JP S57172573 A JPS57172573 A JP S57172573A JP 5804681 A JP5804681 A JP 5804681A JP 5804681 A JP5804681 A JP 5804681A JP S57172573 A JPS57172573 A JP S57172573A
- Authority
- JP
- Japan
- Prior art keywords
- address
- search
- carriage motor
- difference
- reproducing device
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/022—Programmed access in sequence to indexed parts of operating record carriers
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 reduce a search speed and to enable to search accurate address by driving in performing successive jumping operation by a prescribed number of recording tracks at prescribed time which is not in an address information recording period. CONSTITUTION:A desired search address inputted by a search address specifying device 13 and a current address are sent to a frame number comparator 14, which compares the both for every TV field by a vertical synchronizing signal from a vertical synchronizing signal separator 12 to output their address difference. A carriage speed selector 15 controls a carriage motor driver 18 according to the absolute value of the address difference. At the same time, the output polarities of the carriage motor driver 18 are changed according to the sign code of the address difference and a carriage motor 20 is so controlled that the absolute value of the address difference is minimized.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5804681A JPS57172573A (en) | 1981-04-17 | 1981-04-17 | High-speed address information search system of recording information reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5804681A JPS57172573A (en) | 1981-04-17 | 1981-04-17 | High-speed address information search system of recording information reproducing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57172573A true JPS57172573A (en) | 1982-10-23 |
JPH0235388B2 JPH0235388B2 (en) | 1990-08-09 |
Family
ID=13072984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5804681A Granted JPS57172573A (en) | 1981-04-17 | 1981-04-17 | High-speed address information search system of recording information reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57172573A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59110074A (en) * | 1982-12-14 | 1984-06-25 | Mitsubishi Electric Corp | Manual retrieving device for reproduction position of disk reproducing device |
JPS63316376A (en) * | 1987-06-18 | 1988-12-23 | Sanyo Electric Co Ltd | Address retrieving device for disk player |
JPH02103787A (en) * | 1988-08-01 | 1990-04-16 | Magnetic Peripherals Inc | Adaptive speed profile system and adaptive speed profile method |
JPH03124370U (en) * | 1990-03-30 | 1991-12-17 | ||
JPH06215500A (en) * | 1981-10-28 | 1994-08-05 | Discovision Assoc | Playback apparatus of recorded information |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5476104A (en) * | 1977-11-29 | 1979-06-18 | Victor Co Of Japan Ltd | Retrieval control system of information track positions |
-
1981
- 1981-04-17 JP JP5804681A patent/JPS57172573A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5476104A (en) * | 1977-11-29 | 1979-06-18 | Victor Co Of Japan Ltd | Retrieval control system of information track positions |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06215500A (en) * | 1981-10-28 | 1994-08-05 | Discovision Assoc | Playback apparatus of recorded information |
JPS59110074A (en) * | 1982-12-14 | 1984-06-25 | Mitsubishi Electric Corp | Manual retrieving device for reproduction position of disk reproducing device |
JPH0136183B2 (en) * | 1982-12-14 | 1989-07-28 | Mitsubishi Electric Corp | |
JPS63316376A (en) * | 1987-06-18 | 1988-12-23 | Sanyo Electric Co Ltd | Address retrieving device for disk player |
JPH0640422B2 (en) * | 1987-06-18 | 1994-05-25 | 三洋電機株式会社 | Address player for disk player |
JPH02103787A (en) * | 1988-08-01 | 1990-04-16 | Magnetic Peripherals Inc | Adaptive speed profile system and adaptive speed profile method |
JPH03124370U (en) * | 1990-03-30 | 1991-12-17 |
Also Published As
Publication number | Publication date |
---|---|
JPH0235388B2 (en) | 1990-08-09 |
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