JPS558136A - Compression system of facsimile - Google Patents

Compression system of facsimile

Info

Publication number
JPS558136A
JPS558136A JP8071778A JP8071778A JPS558136A JP S558136 A JPS558136 A JP S558136A JP 8071778 A JP8071778 A JP 8071778A JP 8071778 A JP8071778 A JP 8071778A JP S558136 A JPS558136 A JP S558136A
Authority
JP
Japan
Prior art keywords
change point
code
mode
decided
encoded
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
JP8071778A
Other languages
Japanese (ja)
Other versions
JPS6252986B2 (en
Inventor
Akira Konishi
Noboru Murayama
Sho Taniguchi
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP8071778A priority Critical patent/JPS558136A/en
Publication of JPS558136A publication Critical patent/JPS558136A/en
Publication of JPS6252986B2 publication Critical patent/JPS6252986B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To increase the compressibility by capturing the relative relation between the change point to be encoded and the change point of the scan line to be sent in advance in the form of the mode and then encoding the mode transition.
CONSTITUTION: The telautogram information is defied to be distributed as shown in Fig. 50, and the modes are decided as shown in Table 60 to information change point TPi of K + 1 line to be encoded and picture elements A∼Z of the lines sent to the reception side in advance to picture elements (measures) a∼z. And the mode transition code and the information change point display code are decided as shown in Table 70. Here, MTC indicates the mode transititioncode used for encoding of Ti, CC shows the code indicating Ti, and R(M) is the run length code showing the picture element numbers from Ti-1 to Ti respectively. In such constitution, the pictures are read out with the scan density of 1/8mm (main scan density) × 1/4mm (secondary scan density) set for DOC and #1 of CCITT, and thus the bit number 2052864 before compression is turned to 91412 after compression. As a result, a high compressibility of 22.457% can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP8071778A 1978-07-03 1978-07-03 Compression system of facsimile Granted JPS558136A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8071778A JPS558136A (en) 1978-07-03 1978-07-03 Compression system of facsimile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8071778A JPS558136A (en) 1978-07-03 1978-07-03 Compression system of facsimile

Publications (2)

Publication Number Publication Date
JPS558136A true JPS558136A (en) 1980-01-21
JPS6252986B2 JPS6252986B2 (en) 1987-11-09

Family

ID=13726090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8071778A Granted JPS558136A (en) 1978-07-03 1978-07-03 Compression system of facsimile

Country Status (1)

Country Link
JP (1) JPS558136A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60114165A (en) * 1983-11-25 1985-06-20 Tamaruya Honten:Kk Production of powder of japanese horseradish

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60114165A (en) * 1983-11-25 1985-06-20 Tamaruya Honten:Kk Production of powder of japanese horseradish

Also Published As

Publication number Publication date
JPS6252986B2 (en) 1987-11-09

Similar Documents

Publication Publication Date Title
JPS5261424A (en) Encode system
CA2491741A1 (en) Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding
JPS54146916A (en) Facsimile unit having character read function
JPS51132015A (en) Picture signal encoding transmission system
JPS5412618A (en) Information transmission recording system
JPS542619A (en) Tw0-dimensional block coding system
JPS53922A (en) Facsimile transmission system
JPS5377115A (en) Numbering transmission and recording system
JPS5374827A (en) Information transmission system
JPS5293262A (en) Decorder for ac-dc conversion
JPS5778278A (en) Video coding method
JPS53105112A (en) Picture and writing communication equipment
JPS52119128A (en) Reader for pictures and writings
JPS54114112A (en) Reception picture information correcting system for facsimile
JPS53117319A (en) Facsimile transmission system
JPS52142416A (en) Picture transmission system
JPS5413208A (en) Facsimile communication system
JPS53125712A (en) Picture coder
JPS54102916A (en) Signal suppressing transmission system
JPS52116010A (en) Character and picture telecommunication
JPS5232615A (en) Facsimile communication system
JPS5310914A (en) Band compression encoding system
JPS6450668A (en) Original reading system
JPS52134321A (en) Video signal code transmission system
JPS55110483A (en) Color video signal processing unit