JPS5477511A - Band compression system for picture signal - Google Patents

Band compression system for picture signal

Info

Publication number
JPS5477511A
JPS5477511A JP14470677A JP14470677A JPS5477511A JP S5477511 A JPS5477511 A JP S5477511A JP 14470677 A JP14470677 A JP 14470677A JP 14470677 A JP14470677 A JP 14470677A JP S5477511 A JPS5477511 A JP S5477511A
Authority
JP
Japan
Prior art keywords
dpcm
band compression
picture signal
run
compression system
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
JP14470677A
Other languages
Japanese (ja)
Inventor
Toru Yagihashi
Tatsuo Nakayama
Takeyasu Morigami
Tsukumo Higeta
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 JP14470677A priority Critical patent/JPS5477511A/en
Publication of JPS5477511A publication Critical patent/JPS5477511A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase the band compression factor through a simple constitution by giving the run-length process in case the same contents is continuous for the DPCM signal.
CONSTITUTION: The signal sent from TV camera 1 undergoes A/D conversion 2 and is stored in memory 3 equivalent to one picture frame. Thus, DPCM process 4 is carried out with every horizontal scanning line. And run-length process 5 is carried out in case the DPCM signals of 0 featuring the highest generating frequency are continuous, and the output is delivered via parallel-series converter circuit 6.
COPYRIGHT: (C)1979,JPO&Japio
JP14470677A 1977-12-02 1977-12-02 Band compression system for picture signal Pending JPS5477511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14470677A JPS5477511A (en) 1977-12-02 1977-12-02 Band compression system for picture signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14470677A JPS5477511A (en) 1977-12-02 1977-12-02 Band compression system for picture signal

Publications (1)

Publication Number Publication Date
JPS5477511A true JPS5477511A (en) 1979-06-21

Family

ID=15368384

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14470677A Pending JPS5477511A (en) 1977-12-02 1977-12-02 Band compression system for picture signal

Country Status (1)

Country Link
JP (1) JPS5477511A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59228419A (en) * 1983-06-09 1984-12-21 Alps Electric Co Ltd Information compression processing system
JPS6199419A (en) * 1984-10-20 1986-05-17 Canon Inc Predictive encoding system
JPS62136132A (en) * 1985-12-10 1987-06-19 Hitachi Ltd Method and apparatus for modulating digital data
WO1997002703A1 (en) * 1995-07-06 1997-01-23 Diginet Systems Pty. Limited Virtual broadband technology

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59228419A (en) * 1983-06-09 1984-12-21 Alps Electric Co Ltd Information compression processing system
JPS6366086B2 (en) * 1983-06-09 1988-12-19 Alps Electric Co Ltd
JPS6199419A (en) * 1984-10-20 1986-05-17 Canon Inc Predictive encoding system
JPS62136132A (en) * 1985-12-10 1987-06-19 Hitachi Ltd Method and apparatus for modulating digital data
WO1997002703A1 (en) * 1995-07-06 1997-01-23 Diginet Systems Pty. Limited Virtual broadband technology

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