JPS57101937A - Data storage device - Google Patents

Data storage device

Info

Publication number
JPS57101937A
JPS57101937A JP17790880A JP17790880A JPS57101937A JP S57101937 A JPS57101937 A JP S57101937A JP 17790880 A JP17790880 A JP 17790880A JP 17790880 A JP17790880 A JP 17790880A JP S57101937 A JPS57101937 A JP S57101937A
Authority
JP
Japan
Prior art keywords
circuit
frame
signal
transfer
storage
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
JP17790880A
Inventor
Jun Kanatsu
Original Assignee
Nec 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 Nec Corp filed Critical Nec Corp
Priority to JP17790880A priority Critical patent/JPS57101937A/en
Publication of JPS57101937A publication Critical patent/JPS57101937A/en
Application status is Pending legal-status Critical

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02Addressing or allocation; Relocation
    • G06F12/08Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems

Abstract

PURPOSE:To economize storage capacity and to shorten a transfer speed, by storing a specific data frame pattern which appears repeatedly, as 1-data frame. CONSTITUTION:A transmitted transfer frame is compared with a compressed data block 11 stored in a storage circuit 3 by a comparing circuit 4. At the same time, its transfer frame 10 is stored in a temporary storage circuit 2. As a result of comparison by the circuit 4, in case of coincidence, a coincidence signal 12 is inputted to a write controlling circuit 5. When the signal 12 is supplied, the circuit 5 switches a switching circuit 6 to a compression display frame 14 from the transfer frame, and also stores the frame 14 in a storage circuit 7. In case of dissidence as a result of comparison, a dissidence signal 13 is inputted to the circuit 5. When the signal 13 is supplied, the circuit 5 switches the circuit 6 to the circuit 2, and stores the transfer frame stored in the circuit 2 by that time in the storage circuit 7.
JP17790880A 1980-12-16 1980-12-16 Data storage device Pending JPS57101937A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17790880A JPS57101937A (en) 1980-12-16 1980-12-16 Data storage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17790880A JPS57101937A (en) 1980-12-16 1980-12-16 Data storage device

Publications (1)

Publication Number Publication Date
JPS57101937A true JPS57101937A (en) 1982-06-24

Family

ID=16039158

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17790880A Pending JPS57101937A (en) 1980-12-16 1980-12-16 Data storage device

Country Status (1)

Country Link
JP (1) JPS57101937A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60116228A (en) * 1983-06-20 1985-06-22 Sperry Corp High speed data compressing and recovering device
JPS61284119A (en) * 1985-06-11 1986-12-15 Ibm Compression system for data
JPH04223909A (en) * 1990-08-10 1992-08-13 Hitachi Metals Ltd Bucket elevator and driving method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60116228A (en) * 1983-06-20 1985-06-22 Sperry Corp High speed data compressing and recovering device
JPH0568893B2 (en) * 1983-06-20 1993-09-29 Unisys Corp
JPS61284119A (en) * 1985-06-11 1986-12-15 Ibm Compression system for data
JPH0262058B2 (en) * 1985-06-11 1990-12-21 Intaanashonaru Bijinesu Mashiinzu Corp
JPH04223909A (en) * 1990-08-10 1992-08-13 Hitachi Metals Ltd Bucket elevator and driving method thereof

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