JPS5641571A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS5641571A JPS5641571A JP11858079A JP11858079A JPS5641571A JP S5641571 A JPS5641571 A JP S5641571A JP 11858079 A JP11858079 A JP 11858079A JP 11858079 A JP11858079 A JP 11858079A JP S5641571 A JPS5641571 A JP S5641571A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- address
- phase
- detected
- clock generated
- 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
- Magnetic Record Carriers (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Abstract
PURPOSE: To reduce readout errors of an address signal for positioning the beginning of a magnetic recording medium by composing the address signal of three kinds of start, binary address code and end signals and by putting those signals out of phase with a timing signal by steps.
CONSTITUTION: In forward reproduction, start signal (s) is detected by the 1st clock generated being (T1/Tv)×100% of reproduction period Tv' out of phase with control signal CTL and an address signal is detected by the 2nd clock generated being (T2/Tv)×100% of signal CTLTv' out of phase. Further, end signal (e) is detected by the 3rd clock generated being out of phase by (T4/Tv)×100% of signal Tv'. Thus, three kinds of start, address and end signals are separately extracted and only when those signals are all obtained, the correct address is displayed. In reverse reproduction, on the other hand, the polarity of each signal is only inverted.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11858079A JPS5641571A (en) | 1979-09-13 | 1979-09-13 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11858079A JPS5641571A (en) | 1979-09-13 | 1979-09-13 | Magnetic recording medium |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5641571A true JPS5641571A (en) | 1981-04-18 |
JPS6127839B2 JPS6127839B2 (en) | 1986-06-27 |
Family
ID=14740101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11858079A Granted JPS5641571A (en) | 1979-09-13 | 1979-09-13 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5641571A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58224485A (en) * | 1982-06-23 | 1983-12-26 | Toshiba Corp | Device for recording and reproducing information of video tape recorder |
JPS59164636A (en) * | 1983-02-28 | 1984-09-17 | エフ・エム・シ−・コ−ポレ−シヨン | Manufacture of thallium (iii) |
JPS6083286A (en) * | 1983-10-13 | 1985-05-11 | Sony Corp | Video reproducing device |
JPS60160066A (en) * | 1984-01-28 | 1985-08-21 | Sansui Electric Co | Recording and reproduction system of address signal |
JPS61175989A (en) * | 1985-01-29 | 1986-08-07 | Mitsubishi Electric Corp | Magnetic recording and reproducing device |
JPS61236087A (en) * | 1985-04-10 | 1986-10-21 | Mitsubishi Electric Corp | Magnetic recording and reproducing device |
JPS61253687A (en) * | 1985-05-02 | 1986-11-11 | Matsushita Electric Ind Co Ltd | Recording device for program searching signal |
JPS61287091A (en) * | 1985-06-13 | 1986-12-17 | Mitsubishi Electric Corp | Magnetic recording and reproducing device |
JPS6234388A (en) * | 1985-08-08 | 1987-02-14 | Pioneer Electronic Corp | Magnetic recording and reproducing device |
JPS62223859A (en) * | 1986-03-25 | 1987-10-01 | Victor Co Of Japan Ltd | Data recording method and data recording and reproducing method for vtr |
JPS62223876A (en) * | 1987-02-19 | 1987-10-01 | Victor Co Of Japan Ltd | Data recording method for vtr |
JPS62223877A (en) * | 1986-03-25 | 1987-10-01 | Victor Co Of Japan Ltd | Data recording and reproducing device for vtr |
EP0248945A2 (en) * | 1986-06-09 | 1987-12-16 | General Service Electronics GmbH | Method of transferring an information code onto the synchronizing track of a video tape, circuit arrangement for carrying out the method and video tape manufactured in accordance with the method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50153606A (en) * | 1974-05-30 | 1975-12-10 | ||
JPS5734633U (en) * | 1980-07-29 | 1982-02-23 |
-
1979
- 1979-09-13 JP JP11858079A patent/JPS5641571A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50153606A (en) * | 1974-05-30 | 1975-12-10 | ||
JPS5734633U (en) * | 1980-07-29 | 1982-02-23 |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58224485A (en) * | 1982-06-23 | 1983-12-26 | Toshiba Corp | Device for recording and reproducing information of video tape recorder |
JPH0435837B2 (en) * | 1982-06-23 | 1992-06-12 | Tokyo Shibaura Electric Co | |
JPS59164636A (en) * | 1983-02-28 | 1984-09-17 | エフ・エム・シ−・コ−ポレ−シヨン | Manufacture of thallium (iii) |
JPS6241173B2 (en) * | 1983-02-28 | 1987-09-01 | Fmc Corp | |
JPS6083286A (en) * | 1983-10-13 | 1985-05-11 | Sony Corp | Video reproducing device |
JPS60160066A (en) * | 1984-01-28 | 1985-08-21 | Sansui Electric Co | Recording and reproduction system of address signal |
JPS61175989A (en) * | 1985-01-29 | 1986-08-07 | Mitsubishi Electric Corp | Magnetic recording and reproducing device |
JPH0553037B2 (en) * | 1985-01-29 | 1993-08-09 | Mitsubishi Electric Corp | |
JPS61236087A (en) * | 1985-04-10 | 1986-10-21 | Mitsubishi Electric Corp | Magnetic recording and reproducing device |
JPH0553038B2 (en) * | 1985-04-10 | 1993-08-09 | Mitsubishi Electric Corp | |
JPS61253687A (en) * | 1985-05-02 | 1986-11-11 | Matsushita Electric Ind Co Ltd | Recording device for program searching signal |
JPH0746493B2 (en) * | 1985-05-02 | 1995-05-17 | 松下電器産業株式会社 | Program cue signal recording device |
JPS61287091A (en) * | 1985-06-13 | 1986-12-17 | Mitsubishi Electric Corp | Magnetic recording and reproducing device |
JPS6234388A (en) * | 1985-08-08 | 1987-02-14 | Pioneer Electronic Corp | Magnetic recording and reproducing device |
JPS62223877A (en) * | 1986-03-25 | 1987-10-01 | Victor Co Of Japan Ltd | Data recording and reproducing device for vtr |
JPS62223859A (en) * | 1986-03-25 | 1987-10-01 | Victor Co Of Japan Ltd | Data recording method and data recording and reproducing method for vtr |
JPS62291704A (en) * | 1986-06-09 | 1987-12-18 | ジエネラル サ−ビス エレクトロニクス ゲ−エムベ−ハ− | Method and apparatus for transferring information code onto synchronous track of video tape |
EP0248945A2 (en) * | 1986-06-09 | 1987-12-16 | General Service Electronics GmbH | Method of transferring an information code onto the synchronizing track of a video tape, circuit arrangement for carrying out the method and video tape manufactured in accordance with the method |
JPS62223876A (en) * | 1987-02-19 | 1987-10-01 | Victor Co Of Japan Ltd | Data recording method for vtr |
Also Published As
Publication number | Publication date |
---|---|
JPS6127839B2 (en) | 1986-06-27 |
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