JPS5470709A - Data compression system - Google Patents

Data compression system

Info

Publication number
JPS5470709A
JPS5470709A JP13768177A JP13768177A JPS5470709A JP S5470709 A JPS5470709 A JP S5470709A JP 13768177 A JP13768177 A JP 13768177A JP 13768177 A JP13768177 A JP 13768177A JP S5470709 A JPS5470709 A JP S5470709A
Authority
JP
Japan
Prior art keywords
continuous data
data
tape
circuit
unit
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
JP13768177A
Other languages
Japanese (ja)
Inventor
Masahiro Saito
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP13768177A priority Critical patent/JPS5470709A/en
Publication of JPS5470709A publication Critical patent/JPS5470709A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B2020/1087—Digital recording or reproducing wherein a selection is made among at least two alternative ways of processing
    • G11B2020/10888—Digital recording or reproducing wherein a selection is made among at least two alternative ways of processing the kind of data being the selection criterion

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE:To increase the capacity for the memory medium by using the unused part of the information exchange code as the control code. CONSTITUTION:The data is drawn out of information exchange code EBCDIC in main memory unit 1 to be decided (7) a continuous data or not. Continuous data is compressed (8) and then recorded on magnetic tape 4 via writing circuit 2, and the non-continuous data is recorded on the tape with no compression. At the same time, the data of tape 4 is read out to be sent to decision circuit 9. And in the case of the continuous data, the compressed data is restored to the original continuous data via restoring circuit 10 to be supplied to unit 1; while the non-continuous data is supplied to unit 1 via circuit 9 respectively. As a result, the memory capacity of tape 4 can be increased.
JP13768177A 1977-11-16 1977-11-16 Data compression system Pending JPS5470709A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13768177A JPS5470709A (en) 1977-11-16 1977-11-16 Data compression system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13768177A JPS5470709A (en) 1977-11-16 1977-11-16 Data compression system

Publications (1)

Publication Number Publication Date
JPS5470709A true JPS5470709A (en) 1979-06-06

Family

ID=15204319

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13768177A Pending JPS5470709A (en) 1977-11-16 1977-11-16 Data compression system

Country Status (1)

Country Link
JP (1) JPS5470709A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01246063A (en) * 1988-03-25 1989-10-02 Takekawa Iron Works Co Ltd Wide-belt sanding machine
JP2009500251A (en) * 2005-07-08 2009-01-08 スターリンガー ウント コムパニー ゲゼルシャフト ミット ベシュレンクテル ハフツング Breathable bag
US20150242122A1 (en) * 2014-02-21 2015-08-27 Phison Electronics Corp. Method for wrtiting data, memory storage device and memory control circuit unit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01246063A (en) * 1988-03-25 1989-10-02 Takekawa Iron Works Co Ltd Wide-belt sanding machine
JPH0796186B2 (en) * 1988-03-25 1995-10-18 アミテック株式会社 Wide belt sander machine
JP2009500251A (en) * 2005-07-08 2009-01-08 スターリンガー ウント コムパニー ゲゼルシャフト ミット ベシュレンクテル ハフツング Breathable bag
US20150242122A1 (en) * 2014-02-21 2015-08-27 Phison Electronics Corp. Method for wrtiting data, memory storage device and memory control circuit unit
US9690490B2 (en) 2014-02-21 2017-06-27 Phison Electronics Corp. Method for writing data, memory storage device and memory control circuit unit

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