JPS6482175A - Matrix arithmetic unit - Google Patents

Matrix arithmetic unit

Info

Publication number
JPS6482175A
JPS6482175A JP62240457A JP24045787A JPS6482175A JP S6482175 A JPS6482175 A JP S6482175A JP 62240457 A JP62240457 A JP 62240457A JP 24045787 A JP24045787 A JP 24045787A JP S6482175 A JPS6482175 A JP S6482175A
Authority
JP
Japan
Prior art keywords
row
converter
column
conversion
data
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
JP62240457A
Other languages
Japanese (ja)
Inventor
Hisataka Fujii
Akira Yasuda
Hiroyoshi Yuasa
Yoshihiko Tokunaga
Hiroshi Hamada
Yoshitaka Morikawa
Nobumoto Yamane
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP62240457A priority Critical patent/JPS6482175A/en
Publication of JPS6482175A publication Critical patent/JPS6482175A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To eliminate a process where data are rearranged by means of the row/column conversion memories, etc., and to reduce the hardware scale by using the row/column converters of a specific constitution. CONSTITUTION:A matrix arithmetic unit 8 is used to a picture converting/coding device which compresses the picture data after converting and coding pictures. The unit 8 consists of a row converter 6 which processes the rows at one time and processes the wave numbers successively and a column converter 7 which processes the wave numbers at one time. The product sum arithmetic is carried out at a high speed by the bit slice method and also simplified by means of the integer orthogonal conversion. That is, each row undergoes conversion via the converter 6 and the output which the row conversion is through is supplied to the converter 7. The converter 7 performs four conversions simultaneously to the input for execution of the row conversion. Thus it is not required to rearrange the data on the row and the column compared with a normal case where the matrix arithmetic is repeated twice. As a result, no memory is needed for rearrangement of data on the row and the column. Thus it is possible to obtain a matrix arithmetic unit requiring no high-speed arithmetic element.
JP62240457A 1987-09-24 1987-09-24 Matrix arithmetic unit Pending JPS6482175A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62240457A JPS6482175A (en) 1987-09-24 1987-09-24 Matrix arithmetic unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62240457A JPS6482175A (en) 1987-09-24 1987-09-24 Matrix arithmetic unit

Publications (1)

Publication Number Publication Date
JPS6482175A true JPS6482175A (en) 1989-03-28

Family

ID=17059783

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62240457A Pending JPS6482175A (en) 1987-09-24 1987-09-24 Matrix arithmetic unit

Country Status (1)

Country Link
JP (1) JPS6482175A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04313157A (en) * 1991-03-27 1992-11-05 Mitsubishi Electric Corp Dct processor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51141558A (en) * 1975-05-31 1976-12-06 Toshiba Corp High speed processor of multi-dimensional data
JPS6261159A (en) * 1985-09-12 1987-03-17 Toshiba Corp Cosine converter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51141558A (en) * 1975-05-31 1976-12-06 Toshiba Corp High speed processor of multi-dimensional data
JPS6261159A (en) * 1985-09-12 1987-03-17 Toshiba Corp Cosine converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04313157A (en) * 1991-03-27 1992-11-05 Mitsubishi Electric Corp Dct processor

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