JPS60501087A - アナログ・チヤネル上の音声及びデ−タの同時送信 - Google Patents

アナログ・チヤネル上の音声及びデ−タの同時送信

Info

Publication number
JPS60501087A
JPS60501087A JP59501662A JP50166284A JPS60501087A JP S60501087 A JPS60501087 A JP S60501087A JP 59501662 A JP59501662 A JP 59501662A JP 50166284 A JP50166284 A JP 50166284A JP S60501087 A JPS60501087 A JP S60501087A
Authority
JP
Japan
Prior art keywords
signal
data
receiver
output
audio signal
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
JP59501662A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0435090B2 (https=
Inventor
ナツシユ，ランデイ　デイヴイツド
ウオン，ウエイ　チユーン
Original Assignee
アメリカン テレフオン アンド テレグラフ カムパニ−
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 アメリカン テレフオン アンド テレグラフ カムパニ− filed Critical アメリカン テレフオン アンド テレグラフ カムパニ−
Publication of JPS60501087A publication Critical patent/JPS60501087A/ja
Publication of JPH0435090B2 publication Critical patent/JPH0435090B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/20—Frequency-division multiplex systems in which at least one carrier is angle-modulated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/345—Modifications of the signal space to allow the transmission of additional information
    • H04L27/3461—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel
    • H04L27/3483—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel using a modulation of the constellation points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
JP59501662A 1983-04-11 1984-04-02 アナログ・チヤネル上の音声及びデ−タの同時送信 Granted JPS60501087A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/483,879 US4512013A (en) 1983-04-11 1983-04-11 Simultaneous transmission of speech and data over an analog channel
US483879 1983-04-11

Publications (2)

Publication Number Publication Date
JPS60501087A true JPS60501087A (ja) 1985-07-11
JPH0435090B2 JPH0435090B2 (https=) 1992-06-10

Family

ID=23921872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59501662A Granted JPS60501087A (ja) 1983-04-11 1984-04-02 アナログ・チヤネル上の音声及びデ−タの同時送信

Country Status (7)

Country Link
US (1) US4512013A (https=)
EP (1) EP0138988B1 (https=)
JP (1) JPS60501087A (https=)
CA (1) CA1215482A (https=)
DE (1) DE3484088D1 (https=)
IT (1) IT1209520B (https=)
WO (1) WO1984004217A1 (https=)

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Also Published As

Publication number Publication date
EP0138988A4 (en) 1988-04-11
EP0138988A1 (en) 1985-05-02
WO1984004217A1 (en) 1984-10-25
CA1215482A (en) 1986-12-16
IT1209520B (it) 1989-08-30
US4512013A (en) 1985-04-16
IT8420476A0 (it) 1984-04-10
EP0138988B1 (en) 1991-02-06
DE3484088D1 (de) 1991-03-14
JPH0435090B2 (https=) 1992-06-10

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