KR970008965B1 - Digital switching system - Google Patents

Digital switching system

Info

Publication number
KR970008965B1
KR970008965B1 KR94012574A KR920012574A KR970008965B1 KR 970008965 B1 KR970008965 B1 KR 970008965B1 KR 94012574 A KR94012574 A KR 94012574A KR 920012574 A KR920012574 A KR 920012574A KR 970008965 B1 KR970008965 B1 KR 970008965B1
Authority
KR
South Korea
Prior art keywords
clock
converting
digital
voltage
time
Prior art date
Application number
KR94012574A
Other languages
Korean (ko)
Other versions
KR940003416A (en
Inventor
Sung-Chol Choe
Dong-Sung Kim
Original Assignee
Lg Inf & Comm 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 Lg Inf & Comm Ltd filed Critical Lg Inf & Comm Ltd
Priority to KR94012574A priority Critical patent/KR970008965B1/en
Publication of KR940003416A publication Critical patent/KR940003416A/en
Application granted granted Critical
Publication of KR970008965B1 publication Critical patent/KR970008965B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

A digital exchanger is provided, which includes a clock generating circuit (10) including a reference synchronization clock receiving/discriminating/selecting part (50), an oscillation control part (60) for producing a voltage which is converted from a phase difference counting signal, an oscillation part (19) for generating a clock having predetermined frequency according to the voltage supplied from the oscillation control part, and a clock converting part (70) for producing the clock output from the oscillating part after converting into a predetermined frequency, and a digital switching circuit (30) including a received data/address converting part (80), a control logic/decoder part (35), a clock dividing/transmitting part (90), a digital time/space switching part (39) and a serial data receiving part (40), wherein network synchronization part and the time/space switch part are minimized to 1 board so that subscribers of small capacity may be served for the time division exchange service, and stable data communication may be achieved by the PLL including the phase comparison part, counting part, voltage converting part, oscillating part and the second division part.
KR94012574A 1992-07-15 1992-07-15 Digital switching system KR970008965B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR94012574A KR970008965B1 (en) 1992-07-15 1992-07-15 Digital switching system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR94012574A KR970008965B1 (en) 1992-07-15 1992-07-15 Digital switching system

Publications (2)

Publication Number Publication Date
KR940003416A KR940003416A (en) 1994-02-21
KR970008965B1 true KR970008965B1 (en) 1997-06-03

Family

ID=19336343

Family Applications (1)

Application Number Title Priority Date Filing Date
KR94012574A KR970008965B1 (en) 1992-07-15 1992-07-15 Digital switching system

Country Status (1)

Country Link
KR (1) KR970008965B1 (en)

Also Published As

Publication number Publication date
KR940003416A (en) 1994-02-21

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Legal Events

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A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee