JPS58123270A - インタ−ホン装置 - Google Patents

インタ−ホン装置

Info

Publication number
JPS58123270A
JPS58123270A JP543182A JP543182A JPS58123270A JP S58123270 A JPS58123270 A JP S58123270A JP 543182 A JP543182 A JP 543182A JP 543182 A JP543182 A JP 543182A JP S58123270 A JPS58123270 A JP S58123270A
Authority
JP
Japan
Prior art keywords
transistor
channel selection
call
circuit
control 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.)
Granted
Application number
JP543182A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0125468B2 (enrdf_load_stackoverflow
Inventor
Shigemasa Ichikawa
市川　重政
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.)
AIHON KK
Aiphone Co Ltd
Original Assignee
AIHON KK
Aiphone 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 AIHON KK, Aiphone Co Ltd filed Critical AIHON KK
Priority to JP543182A priority Critical patent/JPS58123270A/ja
Publication of JPS58123270A publication Critical patent/JPS58123270A/ja
Publication of JPH0125468B2 publication Critical patent/JPH0125468B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
JP543182A 1982-01-19 1982-01-19 インタ−ホン装置 Granted JPS58123270A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP543182A JPS58123270A (ja) 1982-01-19 1982-01-19 インタ−ホン装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP543182A JPS58123270A (ja) 1982-01-19 1982-01-19 インタ−ホン装置

Publications (2)

Publication Number Publication Date
JPS58123270A true JPS58123270A (ja) 1983-07-22
JPH0125468B2 JPH0125468B2 (enrdf_load_stackoverflow) 1989-05-17

Family

ID=11610996

Family Applications (1)

Application Number Title Priority Date Filing Date
JP543182A Granted JPS58123270A (ja) 1982-01-19 1982-01-19 インタ−ホン装置

Country Status (1)

Country Link
JP (1) JPS58123270A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0125468B2 (enrdf_load_stackoverflow) 1989-05-17

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