JPS6247009B2 - - Google Patents

Info

Publication number
JPS6247009B2
JPS6247009B2 JP54006954A JP695479A JPS6247009B2 JP S6247009 B2 JPS6247009 B2 JP S6247009B2 JP 54006954 A JP54006954 A JP 54006954A JP 695479 A JP695479 A JP 695479A JP S6247009 B2 JPS6247009 B2 JP S6247009B2
Authority
JP
Japan
Prior art keywords
level
signal
empty
control signal
output terminal
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.)
Expired
Application number
JP54006954A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5599852A (en
Inventor
Susumu Ando
Satoru Tsuboi
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
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP695479A priority Critical patent/JPS5599852A/ja
Publication of JPS5599852A publication Critical patent/JPS5599852A/ja
Publication of JPS6247009B2 publication Critical patent/JPS6247009B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Mobile Radio Communication Systems (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
JP695479A 1979-01-23 1979-01-23 Detection circuit for vacant signal line Granted JPS5599852A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP695479A JPS5599852A (en) 1979-01-23 1979-01-23 Detection circuit for vacant signal line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP695479A JPS5599852A (en) 1979-01-23 1979-01-23 Detection circuit for vacant signal line

Publications (2)

Publication Number Publication Date
JPS5599852A JPS5599852A (en) 1980-07-30
JPS6247009B2 true JPS6247009B2 (enrdf_load_stackoverflow) 1987-10-06

Family

ID=11652612

Family Applications (1)

Application Number Title Priority Date Filing Date
JP695479A Granted JPS5599852A (en) 1979-01-23 1979-01-23 Detection circuit for vacant signal line

Country Status (1)

Country Link
JP (1) JPS5599852A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5638096A (en) * 1993-06-22 1997-06-10 Screenies Computer screen frame

Also Published As

Publication number Publication date
JPS5599852A (en) 1980-07-30

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