JPS63149834A - Optical disk device - Google Patents

Optical disk device

Info

Publication number
JPS63149834A
JPS63149834A JP29717286A JP29717286A JPS63149834A JP S63149834 A JPS63149834 A JP S63149834A JP 29717286 A JP29717286 A JP 29717286A JP 29717286 A JP29717286 A JP 29717286A JP S63149834 A JPS63149834 A JP S63149834A
Authority
JP
Japan
Prior art keywords
circuit
read
write
test
optical disk
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.)
Pending
Application number
JP29717286A
Other languages
Japanese (ja)
Inventor
Toshiro Uchimura
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP29717286A priority Critical patent/JPS63149834A/en
Publication of JPS63149834A publication Critical patent/JPS63149834A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce the cost of test by providing a changeover means to enable a write means and a read means to access either an external memory or an optical disk.
CONSTITUTION: In a read/write test a mode changeover means 16 is operated via a signal output circuit 15, and the write circuit 11 and the read circuit 12 are enabled to access the external memory 14. The data information is stored in a device 14 through the circuit 11, and this data is read out by the circuit 12 from the device 14 after the write processing. In such a way, the read/write test can be executed without using an optical disk 13. Also, after the read/write test, the circuit 16 is operated through the circuit 15 to enable the circuits 11 and 12 to access the disk 13. As a result, the cost of the test can be reduced.
COPYRIGHT: (C)1988,JPO&Japio
JP29717286A 1986-12-12 1986-12-12 Optical disk device Pending JPS63149834A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29717286A JPS63149834A (en) 1986-12-12 1986-12-12 Optical disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29717286A JPS63149834A (en) 1986-12-12 1986-12-12 Optical disk device

Publications (1)

Publication Number Publication Date
JPS63149834A true JPS63149834A (en) 1988-06-22

Family

ID=17843109

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29717286A Pending JPS63149834A (en) 1986-12-12 1986-12-12 Optical disk device

Country Status (1)

Country Link
JP (1) JPS63149834A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000044162A (en) * 1998-12-30 2000-07-15 전주범 Method for controlling data flow in recording and playing back data from dvhs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000044162A (en) * 1998-12-30 2000-07-15 전주범 Method for controlling data flow in recording and playing back data from dvhs

Similar Documents

Publication Publication Date Title
JPS6270953A (en) Semiconductor disk device
JPH0290344A (en) Memory card
JPH0461700A (en) Semiconductor integrated circuit device
JPH01264692A (en) Semiconductor memory circuit
JPS63149834A (en) Optical disk device
JPH01229378A (en) Picture data storage device
JPH03177953A (en) Data transfer system
JPS6041150A (en) Storage device control system
JPS59229659A (en) Data processing method
JPS6328182A (en) Recorder for digital picture signal
JPH04105298A (en) Semiconductor memory integrated circuit
JPS62298990A (en) High speed memory device
JPH04153793A (en) Ic card
JPH02110866A (en) Optical disk reproducing device
JPH03144981A (en) Loading card for electronic equipment
JPS63153781A (en) Composite memory device
JPS61127025A (en) Optical disk controller
JPH0233796A (en) Data processor
JPS62187927A (en) Optical disk storing device
JPH02309397A (en) Plane pack converting circuit of graph data
JPH02171941A (en) Method for accessing memory
JPS62221020A (en) Data processing system
JPH03237698A (en) Test circuit for semiconductor memory
JPH01199248A (en) Buffer memory device
JPH0317754A (en) Semiconductor storage