JPS52151510A - Transmission and reception system and its device of quadrature multiplex signal - Google Patents

Transmission and reception system and its device of quadrature multiplex signal

Info

Publication number
JPS52151510A
JPS52151510A JP6852376A JP6852376A JPS52151510A JP S52151510 A JPS52151510 A JP S52151510A JP 6852376 A JP6852376 A JP 6852376A JP 6852376 A JP6852376 A JP 6852376A JP S52151510 A JPS52151510 A JP S52151510A
Authority
JP
Japan
Prior art keywords
transmission
quadrature
reception system
multiplex signal
pieces
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
JP6852376A
Other languages
Japanese (ja)
Other versions
JPS6013344B2 (en
Inventor
Botaro Hirosaki
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 JP51068523A priority Critical patent/JPS6013344B2/en
Publication of JPS52151510A publication Critical patent/JPS52151510A/en
Publication of JPS6013344B2 publication Critical patent/JPS6013344B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/18—Frequency-division multiplex systems in which all the carriers are amplitude-modulated

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To make the transmission of the high efficient PAM signal at almost equal rate to Nyquist rate, at the time of transmission by multi-plexing these after having converted to N pieces of the quadrature amplitude modulation signal, the base band PAM signal of 2N channel which is mutually cycled by the clock cycle T seconds by 2N pieces of carrier waves whose neighbouring carrier wave has the frequency difference of 1/T cycle and whose phase is set so that the respective carrier waves can be in phase or keep the quadrature relation.
JP51068523A 1976-06-11 1976-06-11 Orthogonal multiplex signal transmission/reception method Expired JPS6013344B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51068523A JPS6013344B2 (en) 1976-06-11 1976-06-11 Orthogonal multiplex signal transmission/reception method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51068523A JPS6013344B2 (en) 1976-06-11 1976-06-11 Orthogonal multiplex signal transmission/reception method

Publications (2)

Publication Number Publication Date
JPS52151510A true JPS52151510A (en) 1977-12-16
JPS6013344B2 JPS6013344B2 (en) 1985-04-06

Family

ID=13376158

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51068523A Expired JPS6013344B2 (en) 1976-06-11 1976-06-11 Orthogonal multiplex signal transmission/reception method

Country Status (1)

Country Link
JP (1) JPS6013344B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006078020A1 (en) * 2005-01-24 2006-07-27 Matsushita Electric Industrial Co., Ltd. Ofdm modulation device, ofdm demodulation device, ofdm modulation method, and ofdm demodulation method
WO2006121073A1 (en) * 2005-05-11 2006-11-16 Netindex Inc. Multiplex transmission device, and multiplex transmission method
WO2007080745A1 (en) * 2006-01-10 2007-07-19 Matsushita Electric Industrial Co., Ltd. Multi-carrier modulation method, and transmission device and reception device using the method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006078020A1 (en) * 2005-01-24 2006-07-27 Matsushita Electric Industrial Co., Ltd. Ofdm modulation device, ofdm demodulation device, ofdm modulation method, and ofdm demodulation method
WO2006121073A1 (en) * 2005-05-11 2006-11-16 Netindex Inc. Multiplex transmission device, and multiplex transmission method
WO2007080745A1 (en) * 2006-01-10 2007-07-19 Matsushita Electric Industrial Co., Ltd. Multi-carrier modulation method, and transmission device and reception device using the method
JP4870096B2 (en) * 2006-01-10 2012-02-08 パナソニック株式会社 Multi-carrier modulation method and transmitter and receiver using the method
US8179986B2 (en) 2006-01-10 2012-05-15 Panasonic Corporation Multicarrier modulation scheme as well as transmission apparatus and reception apparatus using the scheme

Also Published As

Publication number Publication date
JPS6013344B2 (en) 1985-04-06

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