JPS5592052A - Three-phase an transmission and receiving method and its unit - Google Patents

Three-phase an transmission and receiving method and its unit

Info

Publication number
JPS5592052A
JPS5592052A JP51579A JP51579A JPS5592052A JP S5592052 A JPS5592052 A JP S5592052A JP 51579 A JP51579 A JP 51579A JP 51579 A JP51579 A JP 51579A JP S5592052 A JPS5592052 A JP S5592052A
Authority
JP
Japan
Prior art keywords
signals
transmission
phase
broadcast
phases
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
JP51579A
Other languages
Japanese (ja)
Inventor
Toshihiko Namekawa
Tadashi Murata
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP51579A priority Critical patent/JPS5592052A/en
Publication of JPS5592052A publication Critical patent/JPS5592052A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/88—Stereophonic broadcast systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/36—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving

Abstract

PURPOSE:To make it possible to transmit and receive three-channel signals in a narrow frequency band by AM broadcast, by transmitting signals while shifting their phases by 2pi/3 respectively and by receiving these signals to demodulate them by phase. CONSTITUTION:The first, the second and the third signals different from one another are inputted by audible frequency amplifiers 2, 4 and 6 in the transmission side, and these signals have amplitudes modulated by 8, 10 and 12 respectively with the same frequency and are transmitted while their phases are shifted by 2pi/3 respectively. Meanwhile, the transmission signals are received by 24 in the receiving side and are amplified to high frequencies by 26 and are subjected to balanced demodulation in 38, 40 and 42 respectively to output the first, the second and the third signals. As a result, three-channel signals can be transmitted and received in a narrow frequecy band by AM broadcast.
JP51579A 1979-01-05 1979-01-05 Three-phase an transmission and receiving method and its unit Pending JPS5592052A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51579A JPS5592052A (en) 1979-01-05 1979-01-05 Three-phase an transmission and receiving method and its unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51579A JPS5592052A (en) 1979-01-05 1979-01-05 Three-phase an transmission and receiving method and its unit

Publications (1)

Publication Number Publication Date
JPS5592052A true JPS5592052A (en) 1980-07-12

Family

ID=11475904

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51579A Pending JPS5592052A (en) 1979-01-05 1979-01-05 Three-phase an transmission and receiving method and its unit

Country Status (1)

Country Link
JP (1) JPS5592052A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58220533A (en) * 1982-06-16 1983-12-22 Kokusai Electric Co Ltd Amplitude modulation stereophonic system
JPH02260726A (en) * 1988-12-06 1990-10-23 General Instr Corp Digital sound supply method in fm broadcasting band, its receiver, and audio signal broadcasting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58220533A (en) * 1982-06-16 1983-12-22 Kokusai Electric Co Ltd Amplitude modulation stereophonic system
JPH02260726A (en) * 1988-12-06 1990-10-23 General Instr Corp Digital sound supply method in fm broadcasting band, its receiver, and audio signal broadcasting device

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