JPS54102916A - Signal suppressing transmission system - Google Patents

Signal suppressing transmission system

Info

Publication number
JPS54102916A
JPS54102916A JP1010478A JP1010478A JPS54102916A JP S54102916 A JPS54102916 A JP S54102916A JP 1010478 A JP1010478 A JP 1010478A JP 1010478 A JP1010478 A JP 1010478A JP S54102916 A JPS54102916 A JP S54102916A
Authority
JP
Japan
Prior art keywords
picture information
block
transmitted
signal
block containing
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
JP1010478A
Other languages
Japanese (ja)
Inventor
Hiroyuki Ando
Kenzo Tatematsu
Yasuhiro Sugihara
Tatsuo Seki
Yoshito Desaki
Yasukazu Nishino
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1010478A priority Critical patent/JPS54102916A/en
Priority to US06/006,245 priority patent/US4353095A/en
Priority to CA000320490A priority patent/CA1141459A/en
Publication of JPS54102916A publication Critical patent/JPS54102916A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To shorten the transmission time by dividing the synchronous signal and the picture information section into equal n-blocks and then transmitting the control signal obtained by encoding the presence or absence of the picture information within each block along with the signal in the block containing the picture information.
CONSTITUTION: Picture information period PIX in main scanning period L is divided into n-blocks, and the bit number of one block is set to m to check the presence or absence of the picture information for each block. In the example of (A), the picture information exists only in PIX1∼10, 28∼30 and 49∼51. This result is encoded, and control signal CS1 added to the encoded result is transmitted after synchronous signal BLK1 as shown in (B)a. After this, the picture information of the block containing the picture informations transmitted directly. Signal CS is divided equally into n-parts and only the block containing the picture information is set to 1 with the block containing no picture information set 0 to be then transmitted after encoding like (B)b. Thus, full white block PIX11∼27 and 31∼48 are not transmitted, shortening the transmission time.
COPYRIGHT: (C)1979,JPO&Japio
JP1010478A 1978-01-31 1978-01-31 Signal suppressing transmission system Pending JPS54102916A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP1010478A JPS54102916A (en) 1978-01-31 1978-01-31 Signal suppressing transmission system
US06/006,245 US4353095A (en) 1978-01-31 1979-01-24 Facsimile bandwidth compression method system and apparatus
CA000320490A CA1141459A (en) 1978-01-31 1979-01-30 Facsimile bandwidth compression method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1010478A JPS54102916A (en) 1978-01-31 1978-01-31 Signal suppressing transmission system

Publications (1)

Publication Number Publication Date
JPS54102916A true JPS54102916A (en) 1979-08-13

Family

ID=11740998

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1010478A Pending JPS54102916A (en) 1978-01-31 1978-01-31 Signal suppressing transmission system

Country Status (1)

Country Link
JP (1) JPS54102916A (en)

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