JPS56168449A - Digital signal transmitting system - Google Patents

Digital signal transmitting system

Info

Publication number
JPS56168449A
JPS56168449A JP7166180A JP7166180A JPS56168449A JP S56168449 A JPS56168449 A JP S56168449A JP 7166180 A JP7166180 A JP 7166180A JP 7166180 A JP7166180 A JP 7166180A JP S56168449 A JPS56168449 A JP S56168449A
Authority
JP
Japan
Prior art keywords
signal
bit
digital signal
differential
predicted
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
JP7166180A
Other languages
Japanese (ja)
Other versions
JPS6358413B2 (en
Inventor
Masao Kasuga
Norio Hiyama
Yoshiyuki Tsuchikane
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP7166180A priority Critical patent/JPS56168449A/en
Publication of JPS56168449A publication Critical patent/JPS56168449A/en
Publication of JPS6358413B2 publication Critical patent/JPS6358413B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3044—Conversion to or from differential modulation with several bits only, i.e. the difference between successive samples being coded by more than one bit, e.g. differential pulse code modulation [DPCM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

PURPOSE:To improve both the slope overload noise and the granular noise, by transmitting a prescribed bit of a differential signal between an input digital signal and a predicted signal. CONSTITUTION:An n-bit digital signal arrived at an input terminal 10 is supplied to a differentiating device 11, and a differential is obtained between the n-bit digital signal and an n-bit predicted signal. This differential signal receives a bit selection at a transmitting part 12 and is transmitted to a digital transmission line. At the same time, the differential signal is also supplied to a demodulator 13 to be added with a predicted signal and then turned into a new predicted signal after receiving a delay equivalent to a sample through a delaying device 19.
JP7166180A 1980-05-29 1980-05-29 Digital signal transmitting system Granted JPS56168449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7166180A JPS56168449A (en) 1980-05-29 1980-05-29 Digital signal transmitting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7166180A JPS56168449A (en) 1980-05-29 1980-05-29 Digital signal transmitting system

Publications (2)

Publication Number Publication Date
JPS56168449A true JPS56168449A (en) 1981-12-24
JPS6358413B2 JPS6358413B2 (en) 1988-11-15

Family

ID=13467005

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7166180A Granted JPS56168449A (en) 1980-05-29 1980-05-29 Digital signal transmitting system

Country Status (1)

Country Link
JP (1) JPS56168449A (en)

Also Published As

Publication number Publication date
JPS6358413B2 (en) 1988-11-15

Similar Documents

Publication Publication Date Title
JPS5654133A (en) Selective callout receiver
JPS54145406A (en) Packet transmission system
EP0111262A3 (en) Output multiplexer having one gate delay
JPS56168449A (en) Digital signal transmitting system
JPS5329011A (en) Signal transmitter
JPS6446353A (en) Service signal receiver in digital radio line
JPS56168448A (en) Digital signal transmitting system
JPS51137340A (en) Data processing unit
JPS53131815A (en) Phase linear type emphasizer
JPS53106108A (en) Signal transmitting circuit
JPS55133157A (en) Integrated transmission system for digital line
JPS57109445A (en) Telemeter device for pcm communication system
JPS5324718A (en) Signal transmitter
JPS55120240A (en) Supervisory signal transmission system
JPS5738040A (en) Signal transmitter
JPS5612148A (en) Order-wire signal transmission system
JPS5374309A (en) Adaptive echo eraser
JPS56169946A (en) Information transmitter
JPS56145422A (en) Terminal device
JPS5588436A (en) Receiver
JPS5642451A (en) Two-way/one-way converting circuit
JPS5389307A (en) Test system for communicating line system
JPS57106266A (en) Discriminating reproducing circuit
JPS56168450A (en) Fault detecting system of fm radio receiver
LAWRENCE et al. On-line equalization of digital communication channels(Kalman filter for adaptive signal equalization in digital communication channels)