JPH02101653U - - Google Patents

Info

Publication number
JPH02101653U
JPH02101653U JP1024789U JP1024789U JPH02101653U JP H02101653 U JPH02101653 U JP H02101653U JP 1024789 U JP1024789 U JP 1024789U JP 1024789 U JP1024789 U JP 1024789U JP H02101653 U JPH02101653 U JP H02101653U
Authority
JP
Japan
Prior art keywords
signal
handset
circuit
modulation
audio
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
JP1024789U
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 JP1024789U priority Critical patent/JPH02101653U/ja
Publication of JPH02101653U publication Critical patent/JPH02101653U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Closed-Circuit Television Systems (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
JP1024789U 1989-01-31 1989-01-31 Pending JPH02101653U (US07860544-20101228-C00003.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1024789U JPH02101653U (US07860544-20101228-C00003.png) 1989-01-31 1989-01-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1024789U JPH02101653U (US07860544-20101228-C00003.png) 1989-01-31 1989-01-31

Publications (1)

Publication Number Publication Date
JPH02101653U true JPH02101653U (US07860544-20101228-C00003.png) 1990-08-13

Family

ID=31217733

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1024789U Pending JPH02101653U (US07860544-20101228-C00003.png) 1989-01-31 1989-01-31

Country Status (1)

Country Link
JP (1) JPH02101653U (US07860544-20101228-C00003.png)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58171184A (ja) * 1982-03-31 1983-10-07 Matsushita Electric Works Ltd モニタテレビ付インタ−ホン装置
JPS63300685A (ja) * 1987-05-30 1988-12-07 Sharp Corp 音声・映像信号の多重化伝送方法
JPS6427358A (en) * 1988-07-08 1989-01-30 Aiphone Co Ltd Frequency division multiplex interphone transmission system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58171184A (ja) * 1982-03-31 1983-10-07 Matsushita Electric Works Ltd モニタテレビ付インタ−ホン装置
JPS63300685A (ja) * 1987-05-30 1988-12-07 Sharp Corp 音声・映像信号の多重化伝送方法
JPS6427358A (en) * 1988-07-08 1989-01-30 Aiphone Co Ltd Frequency division multiplex interphone transmission system

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