JPS5592060A - Parallel tree search coder and decoder for it - Google Patents

Parallel tree search coder and decoder for it

Info

Publication number
JPS5592060A
JPS5592060A JP86079A JP86079A JPS5592060A JP S5592060 A JPS5592060 A JP S5592060A JP 86079 A JP86079 A JP 86079A JP 86079 A JP86079 A JP 86079A JP S5592060 A JPS5592060 A JP S5592060A
Authority
JP
Japan
Prior art keywords
input signal
code
coder
terminal
parallel
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
JP86079A
Other languages
Japanese (ja)
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 JP86079A priority Critical patent/JPS5592060A/en
Publication of JPS5592060A publication Critical patent/JPS5592060A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To make it possible to obtain a data transmission speed approximating a linear forecasting coder by coding directly the waveform of an input signal and assigning one bit per each input signal according to a parallel tree search method to code it.
CONSTITUTION: A binary code string corresponding t branches of a tree is outputted from terminal 2 by the input signal applied to terminal 1 and is sent to shift register 3 and is added and is led to electronic switch 8 through probability density function converter 4 and self-recurrent moving average type digital filter 5. Meanwhile, unit 6 of search algorithm generates a code concerning transition between binary code values of terminal 2 and parallel trees, and the position of electronic switch 8 is determined by code generation circyit 7 to obtain an optimum demodulation signal. That is, the waveform of the input signal is directly coded, and one bit is assigned per each input signal according to a parallel tree search method to code it, so that a low data transmission speed approximating a linear forecasting coder can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP86079A 1979-01-06 1979-01-06 Parallel tree search coder and decoder for it Pending JPS5592060A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP86079A JPS5592060A (en) 1979-01-06 1979-01-06 Parallel tree search coder and decoder for it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP86079A JPS5592060A (en) 1979-01-06 1979-01-06 Parallel tree search coder and decoder for it

Publications (1)

Publication Number Publication Date
JPS5592060A true JPS5592060A (en) 1980-07-12

Family

ID=11485411

Family Applications (1)

Application Number Title Priority Date Filing Date
JP86079A Pending JPS5592060A (en) 1979-01-06 1979-01-06 Parallel tree search coder and decoder for it

Country Status (1)

Country Link
JP (1) JPS5592060A (en)

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