JPS5528579A - Signal recording/reproducing method - Google Patents
Signal recording/reproducing methodInfo
- Publication number
- JPS5528579A JPS5528579A JP10204278A JP10204278A JPS5528579A JP S5528579 A JPS5528579 A JP S5528579A JP 10204278 A JP10204278 A JP 10204278A JP 10204278 A JP10204278 A JP 10204278A JP S5528579 A JPS5528579 A JP S5528579A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- speed
- circular
- regions
- circular regions
- 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
- Digital Magnetic Recording (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Rotational Drive Of Disk (AREA)
Abstract
PURPOSE: To secure an equal speed between recording and reproducing by recording the PCM signals and others with the speed different with every circular region of the different disks and then controlling in steps the revolution speed of the disk based on the reproduction signals.
CONSTITUTION: The information of PCM signals and the like recorded at circular regions 31, 32 and so on of disk 1 in the different revolution speeds is reproduced through head 5. As this reproduced information features different bit frequencies every circular region, resonance circuits 61, 62 and so on produce the resonance output corresponding to the circular regions to read out the matrix-type memory contents of ROM7 in the form of the decision signals of the circular regions. And the division output of program counter 9 is controlled according to the circular regions for motor control circuit 8. Thus the motor of circuit 8 is controlled in steps in accordance with the circular regions to secure the equal speed for both recording and reproducing with every region. As a result, the recording density can be increased if the recording speed is decided higher in accordance with the regions.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10204278A JPS5528579A (en) | 1978-08-22 | 1978-08-22 | Signal recording/reproducing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10204278A JPS5528579A (en) | 1978-08-22 | 1978-08-22 | Signal recording/reproducing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5528579A true JPS5528579A (en) | 1980-02-29 |
JPS6360464B2 JPS6360464B2 (en) | 1988-11-24 |
Family
ID=14316705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10204278A Granted JPS5528579A (en) | 1978-08-22 | 1978-08-22 | Signal recording/reproducing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5528579A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5898846A (en) * | 1981-12-07 | 1983-06-11 | Pioneer Video Corp | Recording system for disc-shaped recording medium |
JPS60101764A (en) * | 1983-11-07 | 1985-06-05 | Sony Corp | Digital disk and its reproducing device |
JPS60119670A (en) * | 1983-11-30 | 1985-06-27 | Sony Corp | Disc form recording medium |
WO2002029804A1 (en) * | 2000-10-04 | 2002-04-11 | Sanyo Electric Co., Ltd. | Disk device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5169614A (en) * | 1974-12-13 | 1976-06-16 | Fujitsu Ltd | KIOKUSEIGYOHOSHIKI |
-
1978
- 1978-08-22 JP JP10204278A patent/JPS5528579A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5169614A (en) * | 1974-12-13 | 1976-06-16 | Fujitsu Ltd | KIOKUSEIGYOHOSHIKI |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5898846A (en) * | 1981-12-07 | 1983-06-11 | Pioneer Video Corp | Recording system for disc-shaped recording medium |
JPH0416867B2 (en) * | 1981-12-07 | 1992-03-25 | Paionia Bideo Kk | |
JPS60101764A (en) * | 1983-11-07 | 1985-06-05 | Sony Corp | Digital disk and its reproducing device |
JPS60119670A (en) * | 1983-11-30 | 1985-06-27 | Sony Corp | Disc form recording medium |
WO2002029804A1 (en) * | 2000-10-04 | 2002-04-11 | Sanyo Electric Co., Ltd. | Disk device |
Also Published As
Publication number | Publication date |
---|---|
JPS6360464B2 (en) | 1988-11-24 |
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