JPS5592061A - Coder using digital reverse filter group and decoder for it - Google Patents

Coder using digital reverse filter group and decoder for it

Info

Publication number
JPS5592061A
JPS5592061A JP86179A JP86179A JPS5592061A JP S5592061 A JPS5592061 A JP S5592061A JP 86179 A JP86179 A JP 86179A JP 86179 A JP86179 A JP 86179A JP S5592061 A JPS5592061 A JP S5592061A
Authority
JP
Japan
Prior art keywords
code
reverse filter
coder
decoder
filter group
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
JP86179A
Other languages
Japanese (ja)
Other versions
JPH0359615B2 (en
Inventor
Yasuo Matsuyama
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP86179A priority Critical patent/JPS5592061A/en
Publication of JPS5592061A publication Critical patent/JPS5592061A/en
Publication of JPH0359615B2 publication Critical patent/JPH0359615B2/ja
Granted legal-status Critical Current

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  • Dc Digital Transmission (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

PURPOSE: To minimize distortion by selecting a code registor from the filter group obtained by calculating repeatedly distortion measure of a probability process by off-line and by using one reverse filter to code and decode signals.
CONSTITUTION: Input signals are applied to input terminal 1 and are sent to circuit 3, where the total sum of functions of outputs of a probability process filtered reversely is operated, through digital reverse filter group 2. That is, a determined number of filter groups obtained by calculating repeatedly distortion measure of the probability process by off-line is used as code registors, and one reverse filter out of code registors is selected for the input signal, and the input signal is coded by a coder where the number is a part of the code. Decoding for it is performed by a decoder. As a result, a digital reverse filter which minimizes distortion can be obtained with a simple constitution.
COPYRIGHT: (C)1980,JPO&Japio
JP86179A 1979-01-06 1979-01-06 Coder using digital reverse filter group and decoder for it Granted JPS5592061A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP86179A JPS5592061A (en) 1979-01-06 1979-01-06 Coder using digital reverse filter group and decoder for it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP86179A JPS5592061A (en) 1979-01-06 1979-01-06 Coder using digital reverse filter group and decoder for it

Publications (2)

Publication Number Publication Date
JPS5592061A true JPS5592061A (en) 1980-07-12
JPH0359615B2 JPH0359615B2 (en) 1991-09-11

Family

ID=11485439

Family Applications (1)

Application Number Title Priority Date Filing Date
JP86179A Granted JPS5592061A (en) 1979-01-06 1979-01-06 Coder using digital reverse filter group and decoder for it

Country Status (1)

Country Link
JP (1) JPS5592061A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5193105A (en) * 1975-02-13 1976-08-16

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5193105A (en) * 1975-02-13 1976-08-16

Also Published As

Publication number Publication date
JPH0359615B2 (en) 1991-09-11

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