JPS56107307A - Code communication system - Google Patents

Code communication system

Info

Publication number
JPS56107307A
JPS56107307A JP1050380A JP1050380A JPS56107307A JP S56107307 A JPS56107307 A JP S56107307A JP 1050380 A JP1050380 A JP 1050380A JP 1050380 A JP1050380 A JP 1050380A JP S56107307 A JPS56107307 A JP S56107307A
Authority
JP
Japan
Prior art keywords
wave
pcm
amplitude
train
pam
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
JP1050380A
Other languages
Japanese (ja)
Inventor
Shiro Okamura
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 JP1050380A priority Critical patent/JPS56107307A/en
Publication of JPS56107307A publication Critical patent/JPS56107307A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

PURPOSE:To enable excellent reception, by producing a wave close to the AM wave of complement train of PCM wave, to the AM wave of PCM wave, and by making synthesized AM demodulation for both the AM waves. CONSTITUTION:A reception input 30 in separated into PCM wave and PCM at an amplitude separator 31, and the PCM wave reproduces the 1st signal S1 at a DA converter 32. The PCM wave is in AM demodulation via a processor 33 including one-bit delay, as required and again enters an amplitude modulator 34. The carrier input for the amplitude modulator 34 used the train in complement of the PCM wave of output of the amplitude separator 31. The synthesizer 36 synthesizes the PAM output of the amplitude separator 31 and that of the amplitude modulator 34, and the 2nd signal S2 is reproduced through PAM demodulation at the amplitude demodulator 37 in the PAM wave train. With the constitution, excellent reception almost without distortion can be obtained.
JP1050380A 1980-01-30 1980-01-30 Code communication system Pending JPS56107307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1050380A JPS56107307A (en) 1980-01-30 1980-01-30 Code communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1050380A JPS56107307A (en) 1980-01-30 1980-01-30 Code communication system

Publications (1)

Publication Number Publication Date
JPS56107307A true JPS56107307A (en) 1981-08-26

Family

ID=11752001

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1050380A Pending JPS56107307A (en) 1980-01-30 1980-01-30 Code communication system

Country Status (1)

Country Link
JP (1) JPS56107307A (en)

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