JPS56146333A - Signal identifying device - Google Patents

Signal identifying device

Info

Publication number
JPS56146333A
JPS56146333A JP5016580A JP5016580A JPS56146333A JP S56146333 A JPS56146333 A JP S56146333A JP 5016580 A JP5016580 A JP 5016580A JP 5016580 A JP5016580 A JP 5016580A JP S56146333 A JPS56146333 A JP S56146333A
Authority
JP
Japan
Prior art keywords
converter
circuit
symbol value
supplied
symbol
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
JP5016580A
Other languages
Japanese (ja)
Inventor
Yukitsuna Furuya
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP5016580A priority Critical patent/JPS56146333A/en
Publication of JPS56146333A publication Critical patent/JPS56146333A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03114—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals
    • H04L25/03133—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals with a non-recursive structure

Abstract

PURPOSE:To eliminate even an intercode interference on a transmission line having a nonlinear transmission characteristic, by defining the received signal on the nonlinear transmission line to a certain symbol value based on a prescribed value. CONSTITUTION:The base band received signal to be supplied to the input terminal 100 is sampled in a certain cycle and then converted into a digital signal by the A/D converter 2. The output code bit of the converter 2 shows a tentative decision result and is supplied to the 3-step shift register 3 which functions as a pattern presuming circuit. At the same time, the output of the converter 2 is sent to a digital subtractor 5, i.e., the final deciding circuit via a delay circuit 4 equivalent to a time slot. The symbol multiplier circuit 6 secures an exclusive OR between the outputs of registers 30-32 and the code bits of memories 60-62 via the elements 70-73 and thus obtains a symbol value. Then the symbol value of the final decision is obtained by the subtractor 5. In such way, the distortion can be eliminated.
JP5016580A 1980-04-15 1980-04-15 Signal identifying device Pending JPS56146333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5016580A JPS56146333A (en) 1980-04-15 1980-04-15 Signal identifying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5016580A JPS56146333A (en) 1980-04-15 1980-04-15 Signal identifying device

Publications (1)

Publication Number Publication Date
JPS56146333A true JPS56146333A (en) 1981-11-13

Family

ID=12851584

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5016580A Pending JPS56146333A (en) 1980-04-15 1980-04-15 Signal identifying device

Country Status (1)

Country Link
JP (1) JPS56146333A (en)

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