JPS55146675A - Digital audio disk unit - Google Patents
Digital audio disk unitInfo
- Publication number
- JPS55146675A JPS55146675A JP5426879A JP5426879A JPS55146675A JP S55146675 A JPS55146675 A JP S55146675A JP 5426879 A JP5426879 A JP 5426879A JP 5426879 A JP5426879 A JP 5426879A JP S55146675 A JPS55146675 A JP S55146675A
- Authority
- JP
- Japan
- Prior art keywords
- track
- storage space
- disk
- numbers
- head numbers
- 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 simplify collation at the time of write opertion by recording index signals and track/head numbers on a disk in its cylinder address storage space, and writing in data by mark signals within track/head numbers collating memory.
CONSTITUTION: A few tracks from the outer circumference to the inside of disk 6 are used as cylinder address storage space 8 and audio storage space 9 is set following it. A sector signal obtained by dividing equally disk 6 by (n) is used for a starting point and index signals (IDs 1...) and track/head numbers (SCADs 1...) are sequentially added. In audio storage space 9, track/head numbers and spot address numbers (SPD1WSPDn) of commercial message, etc., are recorded on the basis of the same starting point in the same sector, thereby recording data. Consequently, collation in write operation is simplified and even when the power is OFF, there is no need to make SCADs stand by.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5426879A JPS6053390B2 (en) | 1979-05-02 | 1979-05-02 | digital disc device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5426879A JPS6053390B2 (en) | 1979-05-02 | 1979-05-02 | digital disc device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55146675A true JPS55146675A (en) | 1980-11-15 |
JPS6053390B2 JPS6053390B2 (en) | 1985-11-25 |
Family
ID=12965819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5426879A Expired JPS6053390B2 (en) | 1979-05-02 | 1979-05-02 | digital disc device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6053390B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0081138A2 (en) * | 1981-12-01 | 1983-06-15 | Matsushita Electric Industrial Co., Ltd. | Optical recording and reproducing disc |
-
1979
- 1979-05-02 JP JP5426879A patent/JPS6053390B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0081138A2 (en) * | 1981-12-01 | 1983-06-15 | Matsushita Electric Industrial Co., Ltd. | Optical recording and reproducing disc |
Also Published As
Publication number | Publication date |
---|---|
JPS6053390B2 (en) | 1985-11-25 |
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