JPS57133735A - Data transmission device - Google Patents

Data transmission device

Info

Publication number
JPS57133735A
JPS57133735A JP1979981A JP1979981A JPS57133735A JP S57133735 A JPS57133735 A JP S57133735A JP 1979981 A JP1979981 A JP 1979981A JP 1979981 A JP1979981 A JP 1979981A JP S57133735 A JPS57133735 A JP S57133735A
Authority
JP
Japan
Prior art keywords
slave device
control
audio
slave
time division
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
JP1979981A
Other languages
Japanese (ja)
Inventor
Shinji Azumi
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP1979981A priority Critical patent/JPS57133735A/en
Publication of JPS57133735A publication Critical patent/JPS57133735A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
    • H04M9/022—Multiplex systems
    • H04M9/025—Time division multiplex systems, e.g. loop systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Electrically Operated Instructional Devices (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To discriminate each slave device through the instruction from a central controller and to achieve one line for each line, by adding a serial number to each slave device and controlling a control and audio line in time division. CONSTITUTION:A control signal to each slave device from a communication controller 11 is transmitted to a plurality of slave devices 201, 202,...20n through a control bus 30 in time division. In this case, a control signal to each slave device consists of a signal representing the absolute address of the slave device and control data, and the control data of the salve device is fetched by identifying the absolute address data at each slave device. The audio transmission between the master and slave devices made through a communication bus 40 is performed in time division. In this case, the audio is compressed in the compression ratio of a fraction of that of the slave device, and this compressed audio is transmitted in synchronizing with a control signal of the slave device at each slave device.
JP1979981A 1981-02-13 1981-02-13 Data transmission device Pending JPS57133735A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1979981A JPS57133735A (en) 1981-02-13 1981-02-13 Data transmission device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1979981A JPS57133735A (en) 1981-02-13 1981-02-13 Data transmission device

Publications (1)

Publication Number Publication Date
JPS57133735A true JPS57133735A (en) 1982-08-18

Family

ID=12009388

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1979981A Pending JPS57133735A (en) 1981-02-13 1981-02-13 Data transmission device

Country Status (1)

Country Link
JP (1) JPS57133735A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6325680A (en) * 1986-07-18 1988-02-03 ソニー株式会社 Learning apparatus
FR2721781A1 (en) * 1994-06-28 1995-12-29 Thomson Csf Method for ensuring the confidentiality of a voice link and a local telecommunication network implementing the method.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6325680A (en) * 1986-07-18 1988-02-03 ソニー株式会社 Learning apparatus
FR2721781A1 (en) * 1994-06-28 1995-12-29 Thomson Csf Method for ensuring the confidentiality of a voice link and a local telecommunication network implementing the method.

Similar Documents

Publication Publication Date Title
EP0278264A3 (en) Data processing system with overlap bus cycle operations
JPS5657377A (en) Signal control system
AU525682B2 (en) Computer pipe line control system
JPS57133735A (en) Data transmission device
JPS5368940A (en) Information transmission system
JPS5310912A (en) Two-way multiplex transmission control system
JPS6410305A (en) Decentralized control system for programmable controller
JPS53139941A (en) Connection system for input and output control unit
JPS55123704A (en) Maintenance device of control unit
JPS56105504A (en) Control device
JPS57194659A (en) Controlling system for transmission of information
JPS547804A (en) Line connection system in concentrated multiplexer
JPS5724145A (en) Monitor controlling system
JPS5361931A (en) Communication control device
JPS5784647A (en) Serial bus transmission system
JPS56143040A (en) Keyboard controlling system
JPS57176441A (en) Data transfer system
JPS54134526A (en) Terminal equipment
JPS52154981A (en) Remote monitoring control system
JPS52101918A (en) Data transmission system
JPS52147906A (en) Control system for display unit
JPS5427676A (en) Process control system
JPS5399705A (en) Decentralized control system in electronic switching system
JPS5389302A (en) Control system for transmission right
JPS5799057A (en) Common bus communication system