JPS6368249U - - Google Patents

Info

Publication number
JPS6368249U
JPS6368249U JP16240986U JP16240986U JPS6368249U JP S6368249 U JPS6368249 U JP S6368249U JP 16240986 U JP16240986 U JP 16240986U JP 16240986 U JP16240986 U JP 16240986U JP S6368249 U JPS6368249 U JP S6368249U
Authority
JP
Japan
Prior art keywords
level
circuit
transmitting
variable loss
detection circuit
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
JP16240986U
Other languages
English (en)
Japanese (ja)
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 filed Critical
Priority to JP16240986U priority Critical patent/JPS6368249U/ja
Publication of JPS6368249U publication Critical patent/JPS6368249U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Indicating And Signalling Devices For Elevators (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
JP16240986U 1986-10-23 1986-10-23 Pending JPS6368249U (US06486227-20021126-C00005.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16240986U JPS6368249U (US06486227-20021126-C00005.png) 1986-10-23 1986-10-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16240986U JPS6368249U (US06486227-20021126-C00005.png) 1986-10-23 1986-10-23

Publications (1)

Publication Number Publication Date
JPS6368249U true JPS6368249U (US06486227-20021126-C00005.png) 1988-05-09

Family

ID=31089640

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16240986U Pending JPS6368249U (US06486227-20021126-C00005.png) 1986-10-23 1986-10-23

Country Status (1)

Country Link
JP (1) JPS6368249U (US06486227-20021126-C00005.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02183657A (ja) * 1989-01-10 1990-07-18 Hitachi Ltd エレベーター通話装置通話制御方式

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02183657A (ja) * 1989-01-10 1990-07-18 Hitachi Ltd エレベーター通話装置通話制御方式

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