JPS5530235A - Predictive coding system for facsimile signal - Google Patents

Predictive coding system for facsimile signal

Info

Publication number
JPS5530235A
JPS5530235A JP10324478A JP10324478A JPS5530235A JP S5530235 A JPS5530235 A JP S5530235A JP 10324478 A JP10324478 A JP 10324478A JP 10324478 A JP10324478 A JP 10324478A JP S5530235 A JPS5530235 A JP S5530235A
Authority
JP
Japan
Prior art keywords
picture
information
mode
pieces
shift operation
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
JP10324478A
Other languages
Japanese (ja)
Inventor
Yuzo Omiya
Kunihiko Sekiya
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10324478A priority Critical patent/JPS5530235A/en
Publication of JPS5530235A publication Critical patent/JPS5530235A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase compression efficiency by suppressing redundancy by expressing information at a predection-failure position on a coding scanning line by the number of times of the generation of each state at several specific picture-element positions on a preceding line scanning before coding.
CONSTITUTION: Pieces of information on picture elements A to C in reference scanning line memory 13 picture element X on a coding scanning line, and picture- element information on D one picture-element before X are predicted. At the same time, pieces of picture-element information on B and C are inputted to mode discriminator 16 to make a decision on each mode M and the numbers of times of the generation of the modes are counted by counters 17 to 20. Then, decided mode information is inputted to control circuit 22. When a predicted value determined by pieces of information on A to D agrees with X, prediction unit 15 sends a signal of "0" and when not, it sends "1" to circuit 22. Circuit 22 continues the shift operation and input shift operation of memory 13 on receiving "0" and interrupts the shift operation on receiving "1" to instruct discrimination code generator 25 to generate a discrimination code for the mode, so that only the count output of the mode equivalent to "1" among outputs of counters will be extracted from gate 27.
COPYRIGHT: (C)1980,JPO&Japio
JP10324478A 1978-08-24 1978-08-24 Predictive coding system for facsimile signal Pending JPS5530235A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10324478A JPS5530235A (en) 1978-08-24 1978-08-24 Predictive coding system for facsimile signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10324478A JPS5530235A (en) 1978-08-24 1978-08-24 Predictive coding system for facsimile signal

Publications (1)

Publication Number Publication Date
JPS5530235A true JPS5530235A (en) 1980-03-04

Family

ID=14349019

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10324478A Pending JPS5530235A (en) 1978-08-24 1978-08-24 Predictive coding system for facsimile signal

Country Status (1)

Country Link
JP (1) JPS5530235A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003095243A (en) * 2001-09-19 2003-04-03 Dainippon Printing Co Ltd Varied carton

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003095243A (en) * 2001-09-19 2003-04-03 Dainippon Printing Co Ltd Varied carton

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