JPS5742294A - Time division channel controller - Google Patents

Time division channel controller

Info

Publication number
JPS5742294A
JPS5742294A JP11801680A JP11801680A JPS5742294A JP S5742294 A JPS5742294 A JP S5742294A JP 11801680 A JP11801680 A JP 11801680A JP 11801680 A JP11801680 A JP 11801680A JP S5742294 A JPS5742294 A JP S5742294A
Authority
JP
Japan
Prior art keywords
circuit
time
time division
switch
parties
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
JP11801680A
Other languages
Japanese (ja)
Inventor
Masahiro Takahara
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 JP11801680A priority Critical patent/JPS5742294A/en
Publication of JPS5742294A publication Critical patent/JPS5742294A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/568—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants
    • H04M3/569—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants using the instant speaker's algorithm

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To make unnecessary the PCM highway exclusive for three parties' connection and to reduce the delay in the three parties' connection time, by providing a time division channel device and controller having a time control circuit making time control. CONSTITUTION:A multiplex circuit 5 is connected to a subscriber interface circuit 4 consisting of an A/D conversion circuit, and this circuit 5 is connected with a time division switch control circuit 8 which inputs the information designating the close/ open of the time division channel via a time division switch 6 and the information indicating the position of calls for two subscribers' share in time division phase conversion corresponding to the call for one subscriber's share of the input data of the switch 6. The two subscribers' share call data outputted from the switch 6 is stored in a data register circuit 9 with the control of the circuit 8, and the two outputs of the circuit 9 is compared with a comparison circuit 10. As the result of comparison, the data having higher digital value is outputted from a selection circuit 11. The time of each circuit is controlled with a time control circuit 13 to reduce the delay in three parties' connection time.
JP11801680A 1980-08-26 1980-08-26 Time division channel controller Pending JPS5742294A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11801680A JPS5742294A (en) 1980-08-26 1980-08-26 Time division channel controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11801680A JPS5742294A (en) 1980-08-26 1980-08-26 Time division channel controller

Publications (1)

Publication Number Publication Date
JPS5742294A true JPS5742294A (en) 1982-03-09

Family

ID=14725966

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11801680A Pending JPS5742294A (en) 1980-08-26 1980-08-26 Time division channel controller

Country Status (1)

Country Link
JP (1) JPS5742294A (en)

Similar Documents

Publication Publication Date Title
ES407164A1 (en) Time division switching system
KR850003098A (en) Interface channel unit
DE3167719D1 (en) Telephone circuit
JPS647726A (en) Radiotelephone system
PT67860B (en) Digital switching arrangements for stored control telecommunications systems
JPS5742294A (en) Time division channel controller
JPS53140908A (en) First ringing control system in time sharing exchanger
JPS55138955A (en) Time sharing channel interruption system
JPS5513569A (en) Channel system in remote control time division electronic exchange system
ES378137A1 (en) Method for the signal exchange in telecommunication,particularly telephone exchanges employing time-division multiplexing
JPS57212856A (en) Terminal adaptor system
FR2423096A1 (en) Ringing circuit for centrally controlled telephone exchange junction - has alternating signal source, and bipolar electronic switch output connected to subscriber and timer
JPS5690662A (en) Extension calling system of key telephone set
JPS5757047A (en) Storage converting device
JPS53117922A (en) Absence reception voice answer skip system
JPS55156463A (en) Interruption system
JPS554183A (en) Circuit control system
JPS57104354A (en) Button telephone set
JPS56149892A (en) Line concentration system of subscriber switchboard
KR940008359A (en) Combined time switching and conference call in exchange
JPS5624863A (en) Transfer system for office incoming call
JPS53126202A (en) Composite data exchange system
JPS5661889A (en) Time-division digital line-concentration control circuit
JPS5675757A (en) Composite exchange system
JPS5642486A (en) Trunk device