JPS558164A - Network control system - Google Patents

Network control system

Info

Publication number
JPS558164A
JPS558164A JP8112978A JP8112978A JPS558164A JP S558164 A JPS558164 A JP S558164A JP 8112978 A JP8112978 A JP 8112978A JP 8112978 A JP8112978 A JP 8112978A JP S558164 A JPS558164 A JP S558164A
Authority
JP
Japan
Prior art keywords
line
band
aural
traffic
distributor
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
JP8112978A
Other languages
Japanese (ja)
Other versions
JPS5738070B2 (en
Inventor
Tsunehiko Koike
Shoichi Kajiwara
Kenichi Noda
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.)
NTT Inc
Original Assignee
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP8112978A priority Critical patent/JPS558164A/en
Publication of JPS558164A publication Critical patent/JPS558164A/en
Publication of JPS5738070B2 publication Critical patent/JPS5738070B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

PURPOSE:To enhance the traffic capacity by increasing the transmission capacity of the digital junction line at the abnormal traffic time via the band compression of the voice. CONSTITUTION:With occurrence of the abnormal traffic, the route of end office unit 3 - digital transmission line 5 - end office unit 4 is switched to the route of line concentrator 6 - aural band compressor 8 - trnamission line 5 - aural band compressor 9 - distributor 7. As a result, the transmission capacity can be increased without adding the digital transmission lines. Under the normal traffic condition, no operation is secured at line concentrator 6, distributor 7 plus aural band compressors 8 and 9 each. The speech quality, however, becomes worse then the normal time owing to the band compression, but the call maintenance is more important in this case.
JP8112978A 1978-07-03 1978-07-03 Network control system Granted JPS558164A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8112978A JPS558164A (en) 1978-07-03 1978-07-03 Network control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8112978A JPS558164A (en) 1978-07-03 1978-07-03 Network control system

Publications (2)

Publication Number Publication Date
JPS558164A true JPS558164A (en) 1980-01-21
JPS5738070B2 JPS5738070B2 (en) 1982-08-13

Family

ID=13737775

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8112978A Granted JPS558164A (en) 1978-07-03 1978-07-03 Network control system

Country Status (1)

Country Link
JP (1) JPS558164A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57128131A (en) * 1980-12-23 1982-08-09 Kuremento Kuraaku Intern Ltd Applanation tonometer
JPS61244559A (en) * 1985-04-23 1986-10-30 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Printing actuator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57128131A (en) * 1980-12-23 1982-08-09 Kuremento Kuraaku Intern Ltd Applanation tonometer
JPS61244559A (en) * 1985-04-23 1986-10-30 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Printing actuator

Also Published As

Publication number Publication date
JPS5738070B2 (en) 1982-08-13

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