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JPS5275966A - Demodulation circuit for multi-valued carrier wave digital signal - Google Patents

Demodulation circuit for multi-valued carrier wave digital signal

Info

Publication number
JPS5275966A
JPS5275966A JP50152309A JP15230975A JPS5275966A JP S5275966 A JPS5275966 A JP S5275966A JP 50152309 A JP50152309 A JP 50152309A JP 15230975 A JP15230975 A JP 15230975A JP S5275966 A JPS5275966 A JP S5275966A
Authority
JP
Japan
Prior art keywords
demodulation circuit
digital signal
carrier wave
wave digital
valued carrier
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
JP50152309A
Other languages
Japanese (ja)
Inventor
Makoto Washio
Hideki Ishio
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP50152309A priority Critical patent/JPS5275966A/en
Publication of JPS5275966A publication Critical patent/JPS5275966A/en
Pending legal-status Critical Current

Links

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  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

PURPOSE: To realize demodulation and reproduction circuit of 4-level QAM signal by adding two subtraction circuits and two discrimination reproduction circuits to ordinary 4-phase PSK signal demodulation circuit.
COPYRIGHT: (C)1977,JPO&Japio
JP50152309A 1975-12-20 1975-12-20 Demodulation circuit for multi-valued carrier wave digital signal Pending JPS5275966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50152309A JPS5275966A (en) 1975-12-20 1975-12-20 Demodulation circuit for multi-valued carrier wave digital signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50152309A JPS5275966A (en) 1975-12-20 1975-12-20 Demodulation circuit for multi-valued carrier wave digital signal

Publications (1)

Publication Number Publication Date
JPS5275966A true JPS5275966A (en) 1977-06-25

Family

ID=15537699

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50152309A Pending JPS5275966A (en) 1975-12-20 1975-12-20 Demodulation circuit for multi-valued carrier wave digital signal

Country Status (1)

Country Link
JP (1) JPS5275966A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5422742A (en) * 1977-07-20 1979-02-20 Bosch Gmbh Robert Device for controlling repeated steps depending on operation parameter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5422742A (en) * 1977-07-20 1979-02-20 Bosch Gmbh Robert Device for controlling repeated steps depending on operation parameter

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