JPS5592068A - Voice data composite communication system - Google Patents

Voice data composite communication system

Info

Publication number
JPS5592068A
JPS5592068A JP16230878A JP16230878A JPS5592068A JP S5592068 A JPS5592068 A JP S5592068A JP 16230878 A JP16230878 A JP 16230878A JP 16230878 A JP16230878 A JP 16230878A JP S5592068 A JPS5592068 A JP S5592068A
Authority
JP
Japan
Prior art keywords
data
voice
service
flag
divider
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
JP16230878A
Other languages
Japanese (ja)
Inventor
Tatsu Tsuda
Michimitsu Hattori
Shuzo Morita
Nobuhiko Onda
Shuji Tomita
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.)
Fujitsu Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujitsu Ltd
Priority to JP16230878A priority Critical patent/JPS5592068A/en
Publication of JPS5592068A publication Critical patent/JPS5592068A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H04M11/068—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using time division multiplex techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To transmit voice and data simultaneously on the same subscriber's line by inserting digital data with a discrimination code added at a non-service time. CONSTITUTION:The voice of transmitter 1 is digitized by A/D converter 2 and is divided by divider 3 and is sent to write selectors 5 and 6 through voice buffer memories 4a-4c by the control of address read/write control circuit 8. In logical operation circuit 7, service and non-service are discriminated on a basis of the magnitude of a power level obtained by measuring always the voice of memories 4a-4c. When non-service is detected, data buffer memory 11 is controlled to insert data after a confirmation protection time. In this case, the start flag of a flag generation circuit is set at the beginning of data, and data is transmitted through selector 12. When the power level of the voice exceeds a fixed value to detect service restart, data transmission is stopped immediately, and a data end flag is set, and after that, a service mode is set. In the receiving side, the discrimination flag is separated by a detector, and a logical operation circuit controls the divider to distribute the voice and data to a decoder and a terminal.
JP16230878A 1978-12-29 1978-12-29 Voice data composite communication system Pending JPS5592068A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16230878A JPS5592068A (en) 1978-12-29 1978-12-29 Voice data composite communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16230878A JPS5592068A (en) 1978-12-29 1978-12-29 Voice data composite communication system

Publications (1)

Publication Number Publication Date
JPS5592068A true JPS5592068A (en) 1980-07-12

Family

ID=15752033

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16230878A Pending JPS5592068A (en) 1978-12-29 1978-12-29 Voice data composite communication system

Country Status (1)

Country Link
JP (1) JPS5592068A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57140519U (en) * 1981-02-27 1982-09-03
JPS57145468A (en) * 1981-03-04 1982-09-08 Hitachi Ltd Data branching and inserting device
JPS57145455A (en) * 1981-03-04 1982-09-08 Hitachi Ltd Voice packet branching and inserting device
JPS5888993A (en) * 1981-11-24 1983-05-27 Hitachi Ltd Information transmission system in composite communication network
JPS58173932A (en) * 1982-04-05 1983-10-12 Oki Electric Ind Co Ltd Packet transmission system
JPS5944140A (en) * 1982-09-06 1984-03-12 Nec Corp Multiplex transmission system of voice and data
US4528659A (en) * 1981-12-17 1985-07-09 International Business Machines Corporation Interleaved digital data and voice communications system apparatus and method
JPS60208154A (en) * 1984-04-02 1985-10-19 Fujitsu Ltd Ping pong transmission system
JPS60235546A (en) * 1984-05-08 1985-11-22 Omron Tateisi Electronics Co Voice data multiplex transmission system
JPS61205035A (en) * 1985-03-07 1986-09-11 Omron Tateisi Electronics Co Transmission switching system
JPS63129766A (en) * 1986-11-19 1988-06-02 Matsushita Electric Ind Co Ltd Multiplex method
JPS6462039A (en) * 1987-09-02 1989-03-08 Hitachi Ltd Digital mute circuit
JPH077489A (en) * 1993-06-17 1995-01-10 Nec Corp Sound/data multiplex transmitting/receiving system
JP2016111580A (en) * 2014-12-09 2016-06-20 株式会社明電舎 Communication control system, communication control method, and communication frame data structure

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57140519U (en) * 1981-02-27 1982-09-03
JPS57145468A (en) * 1981-03-04 1982-09-08 Hitachi Ltd Data branching and inserting device
JPS57145455A (en) * 1981-03-04 1982-09-08 Hitachi Ltd Voice packet branching and inserting device
JPH0128549B2 (en) * 1981-03-04 1989-06-02 Hitachi Ltd
JPS5888993A (en) * 1981-11-24 1983-05-27 Hitachi Ltd Information transmission system in composite communication network
US4528659A (en) * 1981-12-17 1985-07-09 International Business Machines Corporation Interleaved digital data and voice communications system apparatus and method
JPS58173932A (en) * 1982-04-05 1983-10-12 Oki Electric Ind Co Ltd Packet transmission system
JPS5944140A (en) * 1982-09-06 1984-03-12 Nec Corp Multiplex transmission system of voice and data
JPS60208154A (en) * 1984-04-02 1985-10-19 Fujitsu Ltd Ping pong transmission system
JPH0453137B2 (en) * 1984-04-02 1992-08-25 Fujitsu Ltd
JPS60235546A (en) * 1984-05-08 1985-11-22 Omron Tateisi Electronics Co Voice data multiplex transmission system
JPS61205035A (en) * 1985-03-07 1986-09-11 Omron Tateisi Electronics Co Transmission switching system
JPS63129766A (en) * 1986-11-19 1988-06-02 Matsushita Electric Ind Co Ltd Multiplex method
JPS6462039A (en) * 1987-09-02 1989-03-08 Hitachi Ltd Digital mute circuit
JPH077489A (en) * 1993-06-17 1995-01-10 Nec Corp Sound/data multiplex transmitting/receiving system
JP2016111580A (en) * 2014-12-09 2016-06-20 株式会社明電舎 Communication control system, communication control method, and communication frame data structure

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