JPS54103640A - Magnetic tape recording/reproducing system - Google Patents
Magnetic tape recording/reproducing systemInfo
- Publication number
- JPS54103640A JPS54103640A JP1066278A JP1066278A JPS54103640A JP S54103640 A JPS54103640 A JP S54103640A JP 1066278 A JP1066278 A JP 1066278A JP 1066278 A JP1066278 A JP 1066278A JP S54103640 A JPS54103640 A JP S54103640A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic tape
- control circuit
- information
- ram24
- circuit
- 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
- Signal Processing For Digital Recording And Reproducing (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
Abstract
PURPOSE:To shorten the access time equivalently by providing RAM to the magnetic tape unit to secure transfer the heat position information of the magnetic tape to RAM and then using the information for the information to be used repetitively or for the information index on the tape. CONSTITUTION:RAM24 is provided to the magnetic tape unit, and the information of head block HD of the magnetic tape is read out via the operation of reading control circuit 22 and magnetic tape driving part 21 to be transferred to RAM24 via transmission control circuit 27. The information transferred to RAM24 can be read or written by the address signal given from access control circuit 25. And the access of RAM24 becomes possible under the premise that the loading action end signal has been set to state display register 20 from circuit 27 via loading control circuit 29. While in the case of unloading, the control signal is applied to writing control circuit 23 from unloading control circuit 28 via circuit 27. And then the magnetic tape is rewound to write the contents of RAM24 into head block HD.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1066278A JPS5931742B2 (en) | 1978-02-01 | 1978-02-01 | Magnetic tape recording and reproducing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1066278A JPS5931742B2 (en) | 1978-02-01 | 1978-02-01 | Magnetic tape recording and reproducing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54103640A true JPS54103640A (en) | 1979-08-15 |
JPS5931742B2 JPS5931742B2 (en) | 1984-08-03 |
Family
ID=11756441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1066278A Expired JPS5931742B2 (en) | 1978-02-01 | 1978-02-01 | Magnetic tape recording and reproducing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5931742B2 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5661076A (en) * | 1979-10-23 | 1981-05-26 | Toshiba Corp | Recording system for index information |
JPS5750371A (en) * | 1980-09-06 | 1982-03-24 | Sony Corp | Video signal recorder |
JPS581260A (en) * | 1981-06-27 | 1983-01-06 | Fujitsu Ltd | Accessing system for random access file |
JPS5864686A (en) * | 1981-10-14 | 1983-04-18 | Sony Corp | Searching method for data on tape |
JPS6010359A (en) * | 1983-06-30 | 1985-01-19 | Fujitsu Ltd | Skip reading system of record in sequentially edited file |
JPS6199905A (en) * | 1984-10-19 | 1986-05-19 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
JPS6255291U (en) * | 1985-09-20 | 1987-04-06 | ||
JP2015225554A (en) * | 2014-05-28 | 2015-12-14 | インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Machines Corporation | Reading and writing via file system for tape recording system |
-
1978
- 1978-02-01 JP JP1066278A patent/JPS5931742B2/en not_active Expired
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6346517B2 (en) * | 1979-10-23 | 1988-09-16 | Tokyo Shibaura Electric Co | |
JPS5661076A (en) * | 1979-10-23 | 1981-05-26 | Toshiba Corp | Recording system for index information |
JPS5750371A (en) * | 1980-09-06 | 1982-03-24 | Sony Corp | Video signal recorder |
JPH0156467B2 (en) * | 1980-09-06 | 1989-11-30 | Sony Corp | |
JPS581260A (en) * | 1981-06-27 | 1983-01-06 | Fujitsu Ltd | Accessing system for random access file |
JPH0438076B2 (en) * | 1981-10-14 | 1992-06-23 | Sony Corp | |
JPS5864686A (en) * | 1981-10-14 | 1983-04-18 | Sony Corp | Searching method for data on tape |
JPS6010359A (en) * | 1983-06-30 | 1985-01-19 | Fujitsu Ltd | Skip reading system of record in sequentially edited file |
JPS6199905A (en) * | 1984-10-19 | 1986-05-19 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
JPS6255291U (en) * | 1985-09-20 | 1987-04-06 | ||
JP2015225554A (en) * | 2014-05-28 | 2015-12-14 | インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Machines Corporation | Reading and writing via file system for tape recording system |
US10331348B2 (en) | 2014-05-28 | 2019-06-25 | International Business Machines Corporation | Reading and writing via file system for tape recording system |
US10915244B2 (en) | 2014-05-28 | 2021-02-09 | International Business Machines Corporation | Reading and writing via file system for tape recording system |
Also Published As
Publication number | Publication date |
---|---|
JPS5931742B2 (en) | 1984-08-03 |
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