JPS54134919A - Restoration system for compressed data - Google Patents

Restoration system for compressed data

Info

Publication number
JPS54134919A
JPS54134919A JP4288178A JP4288178A JPS54134919A JP S54134919 A JPS54134919 A JP S54134919A JP 4288178 A JP4288178 A JP 4288178A JP 4288178 A JP4288178 A JP 4288178A JP S54134919 A JPS54134919 A JP S54134919A
Authority
JP
Japan
Prior art keywords
address
point
change
circuit
memory
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
JP4288178A
Other languages
Japanese (ja)
Other versions
JPS6125272B2 (en
Inventor
Shigeru Yoshida
Minoru Koseki
Masakatsu Horie
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 JP4288178A priority Critical patent/JPS54134919A/en
Publication of JPS54134919A publication Critical patent/JPS54134919A/en
Publication of JPS6125272B2 publication Critical patent/JPS6125272B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To shorten the restoration time in a restoration system on a change-point relative address system, by adding information on a shift of a change point of a reference scanning point and the address of a new change point to the change-point address of the reference scanning line at every time when information on a picture element difference with one right before picture data is restored, and by using it as the address of the next scanning line.
CONSTITUTION: Reference-scanning-line change-point address memory 21, provided, is stored with the address of a shift change point from code-length equilizer circuit 2 as the change-point address of the reference scanning line. The change-point address of this memory 21 and the output from code-length equializer circuit 2 are added together by adder-subtracter circuit 7, the output of this circuit and the output of adder circuit 8 are stored in the next change-point address memory 9, and these contents are inputted to circuit 10. Further, the contents are sent, simultaneously with the end of restoration, to memory 21 and then stored as the next reference scanning line address.
COPYRIGHT: (C)1979,JPO&Japio
JP4288178A 1978-04-12 1978-04-12 Restoration system for compressed data Granted JPS54134919A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4288178A JPS54134919A (en) 1978-04-12 1978-04-12 Restoration system for compressed data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4288178A JPS54134919A (en) 1978-04-12 1978-04-12 Restoration system for compressed data

Publications (2)

Publication Number Publication Date
JPS54134919A true JPS54134919A (en) 1979-10-19
JPS6125272B2 JPS6125272B2 (en) 1986-06-14

Family

ID=12648371

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4288178A Granted JPS54134919A (en) 1978-04-12 1978-04-12 Restoration system for compressed data

Country Status (1)

Country Link
JP (1) JPS54134919A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6019360A (en) * 1983-07-12 1985-01-31 Nec Corp Decoding circuit of facsimile
JPH01248874A (en) * 1988-03-30 1989-10-04 Matsushita Graphic Commun Syst Inc Picture information processing method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5130418A (en) * 1974-09-09 1976-03-15 Kokusai Denshin Denwa Co Ltd Fuakushimirishingo no johohenkagasoadoresufugokahoshiki

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5130418A (en) * 1974-09-09 1976-03-15 Kokusai Denshin Denwa Co Ltd Fuakushimirishingo no johohenkagasoadoresufugokahoshiki

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6019360A (en) * 1983-07-12 1985-01-31 Nec Corp Decoding circuit of facsimile
JPH0220195B2 (en) * 1983-07-12 1990-05-08 Nippon Electric Co
JPH01248874A (en) * 1988-03-30 1989-10-04 Matsushita Graphic Commun Syst Inc Picture information processing method

Also Published As

Publication number Publication date
JPS6125272B2 (en) 1986-06-14

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