JPS528763A - Amplitude phase modulator - Google Patents

Amplitude phase modulator

Info

Publication number
JPS528763A
JPS528763A JP50084802A JP8480275A JPS528763A JP S528763 A JPS528763 A JP S528763A JP 50084802 A JP50084802 A JP 50084802A JP 8480275 A JP8480275 A JP 8480275A JP S528763 A JPS528763 A JP S528763A
Authority
JP
Japan
Prior art keywords
phase modulator
amplitude phase
amplitude
signal
modulator
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
JP50084802A
Other languages
Japanese (ja)
Inventor
Hideki Ishio
Seizo Seki
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.)
NTT Inc
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 JP50084802A priority Critical patent/JPS528763A/en
Publication of JPS528763A publication Critical patent/JPS528763A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: Obtain an amplitude-phase converter with which 4-phase modulation signal amplifier can be enlarged by obtaining MAPSK signal by coupling the 4phase modulator signal source with directional couplers.
COPYRIGHT: (C)1977,JPO&Japio
JP50084802A 1975-07-09 1975-07-09 Amplitude phase modulator Pending JPS528763A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50084802A JPS528763A (en) 1975-07-09 1975-07-09 Amplitude phase modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50084802A JPS528763A (en) 1975-07-09 1975-07-09 Amplitude phase modulator

Publications (1)

Publication Number Publication Date
JPS528763A true JPS528763A (en) 1977-01-22

Family

ID=13840830

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50084802A Pending JPS528763A (en) 1975-07-09 1975-07-09 Amplitude phase modulator

Country Status (1)

Country Link
JP (1) JPS528763A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4355289A (en) * 1980-07-14 1982-10-19 Wisconsin Alumni Research Foundation Phase shift and amplitude modulator
JPS59135958A (en) * 1983-01-07 1984-08-04 ソシエテ　アノニム　デ　テレコミユニカシイオンズ Transmitter
JPS63176036A (en) * 1987-01-17 1988-07-20 Nippon Telegr & Teleph Corp <Ntt> Communication equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4355289A (en) * 1980-07-14 1982-10-19 Wisconsin Alumni Research Foundation Phase shift and amplitude modulator
JPS59135958A (en) * 1983-01-07 1984-08-04 ソシエテ　アノニム　デ　テレコミユニカシイオンズ Transmitter
US4571549A (en) * 1983-01-07 1986-02-18 Societe Anonyme De Telecommunications 16-QAM Modulator with PLL amplification devices
JPS63176036A (en) * 1987-01-17 1988-07-20 Nippon Telegr & Teleph Corp <Ntt> Communication equipment

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