JPS55146675A - Digital audio disk unit - Google Patents

Digital audio disk unit

Info

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
Application number
JP5426879A
Other languages
Japanese (ja)
Other versions
JPS6053390B2 (en
Inventor
Shigeo Todoroki
Susumu Katayama
Tatsuo Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Columbia Co Ltd
Original Assignee
Nippon Columbia Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Columbia Co Ltd filed Critical Nippon Columbia Co Ltd
Priority to JP5426879A priority Critical patent/JPS6053390B2/en
Publication of JPS55146675A publication Critical patent/JPS55146675A/en
Publication of JPS6053390B2 publication Critical patent/JPS6053390B2/en
Expired legal-status Critical Current

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
JP5426879A 1979-05-02 1979-05-02 digital disc device Expired JPS6053390B2 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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