JPS5685176A - Picture data compressing device - Google Patents

Picture data compressing device

Info

Publication number
JPS5685176A
JPS5685176A JP16326479A JP16326479A JPS5685176A JP S5685176 A JPS5685176 A JP S5685176A JP 16326479 A JP16326479 A JP 16326479A JP 16326479 A JP16326479 A JP 16326479A JP S5685176 A JPS5685176 A JP S5685176A
Authority
JP
Japan
Prior art keywords
data
compression
computer
picture
compressing device
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
JP16326479A
Other languages
Japanese (ja)
Inventor
Takao Omachi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP16326479A priority Critical patent/JPS5685176A/en
Publication of JPS5685176A publication Critical patent/JPS5685176A/en
Pending legal-status Critical Current

Links

Landscapes

  • Advance Control (AREA)
  • Image Processing (AREA)

Abstract

PURPOSE: To realize a high-speed compression process within a process system comprising mainly the computers, by receiving the picture data along with the control word from the computers connected directly to each other via the bus and then returning the picture data to the computer after storing it as a compression data.
CONSTITUTION: The control part 6 of a compressing device receives the number of picture elements of a line plus the number of lines as the control words and then transfers the constitution of the picture element to be compressed to the compression part 4. At the same time, a control is given to the transfer of picture element data to the input buffer part 3, the start/stop of the compression process at the part 4 and the transfer when the counted 7 compression data is returned to the computer memory from the output buffer 5 respectively. For the computer, the data is transferred to the DMA from the memory just by sending the transfer start command of both the picture element data and the compression data to the compressing device. The data is then returned to the memory after compressed by the exclusive hardware. As a result, an easy and high-speed process of compression is possible like a use of the subroutine in terms of the software of the computer.
COPYRIGHT: (C)1981,JPO&Japio
JP16326479A 1979-12-14 1979-12-14 Picture data compressing device Pending JPS5685176A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16326479A JPS5685176A (en) 1979-12-14 1979-12-14 Picture data compressing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16326479A JPS5685176A (en) 1979-12-14 1979-12-14 Picture data compressing device

Publications (1)

Publication Number Publication Date
JPS5685176A true JPS5685176A (en) 1981-07-11

Family

ID=15770491

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16326479A Pending JPS5685176A (en) 1979-12-14 1979-12-14 Picture data compressing device

Country Status (1)

Country Link
JP (1) JPS5685176A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57107848U (en) * 1980-12-22 1982-07-03
JPS62243075A (en) * 1986-04-16 1987-10-23 Olympus Optical Co Ltd Image data transfer device
JPS6343259U (en) * 1986-09-05 1988-03-23

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5099238A (en) * 1973-12-28 1975-08-06

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5099238A (en) * 1973-12-28 1975-08-06

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57107848U (en) * 1980-12-22 1982-07-03
JPS62243075A (en) * 1986-04-16 1987-10-23 Olympus Optical Co Ltd Image data transfer device
JPS6343259U (en) * 1986-09-05 1988-03-23

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