JPS5693103A - Control system for information recording density - Google Patents

Control system for information recording density

Info

Publication number
JPS5693103A
JPS5693103A JP16989279A JP16989279A JPS5693103A JP S5693103 A JPS5693103 A JP S5693103A JP 16989279 A JP16989279 A JP 16989279A JP 16989279 A JP16989279 A JP 16989279A JP S5693103 A JPS5693103 A JP S5693103A
Authority
JP
Japan
Prior art keywords
recording density
circuit
recording
beginning
coincidence
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
JP16989279A
Other languages
Japanese (ja)
Inventor
Kazuo Kumagai
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 JP16989279A priority Critical patent/JPS5693103A/en
Publication of JPS5693103A publication Critical patent/JPS5693103A/en
Pending legal-status Critical Current

Links

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE: To avoid the incapability of reproduction during the recording or the resignation of the job during the reproducing which is caused by the variation of the process recording density in the course of recording, by storing the recording density that is identified at the prescribed region near the beginning of a tape and then comparing the recording density with that set at the middle area of the data part.
CONSTITUTION: The beginning 2 of the tape plus the area between the beginning 2 and the data block 5 are defined as the recording density variable region A. Then the process recording density is recorded previously in accordance with the recording density decided at the region A by the recording circuit 18 of the medium process recording density which is controlled by the MT control circuit 16. Both contents of the circuit 18 and the recording density setting circuit 17 are supplied to the comparing circuit 19 to perform a comparison at the processing point of each block 5 by the timing control signal supplied from the circuit 16. Then the process is continued when a coincidence is obtained; while an error is decided and displayed at the error display part 20 when no coincidence is obtained respectively.
COPYRIGHT: (C)1981,JPO&Japio
JP16989279A 1979-12-26 1979-12-26 Control system for information recording density Pending JPS5693103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16989279A JPS5693103A (en) 1979-12-26 1979-12-26 Control system for information recording density

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16989279A JPS5693103A (en) 1979-12-26 1979-12-26 Control system for information recording density

Publications (1)

Publication Number Publication Date
JPS5693103A true JPS5693103A (en) 1981-07-28

Family

ID=15894887

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16989279A Pending JPS5693103A (en) 1979-12-26 1979-12-26 Control system for information recording density

Country Status (1)

Country Link
JP (1) JPS5693103A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57117114A (en) * 1981-01-09 1982-07-21 Hitachi Ltd Automatic transaction device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57117114A (en) * 1981-01-09 1982-07-21 Hitachi Ltd Automatic transaction device

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