JPS5856567A - インタ−ホン装置 - Google Patents

インタ−ホン装置

Info

Publication number
JPS5856567A
JPS5856567A JP15548881A JP15548881A JPS5856567A JP S5856567 A JPS5856567 A JP S5856567A JP 15548881 A JP15548881 A JP 15548881A JP 15548881 A JP15548881 A JP 15548881A JP S5856567 A JPS5856567 A JP S5856567A
Authority
JP
Japan
Prior art keywords
capacitor
voltage
transistor
constant voltage
resistor
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
JP15548881A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6325743B2 (enrdf_load_stackoverflow
Inventor
Hiroshi Kito
鬼頭　宏志
Seiki Sasaki
佐々木　誠紀
Mitsuo Fukushima
福島　満男
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP15548881A priority Critical patent/JPS5856567A/ja
Publication of JPS5856567A publication Critical patent/JPS5856567A/ja
Publication of JPS6325743B2 publication Critical patent/JPS6325743B2/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)
JP15548881A 1981-09-29 1981-09-29 インタ−ホン装置 Granted JPS5856567A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15548881A JPS5856567A (ja) 1981-09-29 1981-09-29 インタ−ホン装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15548881A JPS5856567A (ja) 1981-09-29 1981-09-29 インタ−ホン装置

Publications (2)

Publication Number Publication Date
JPS5856567A true JPS5856567A (ja) 1983-04-04
JPS6325743B2 JPS6325743B2 (enrdf_load_stackoverflow) 1988-05-26

Family

ID=15607136

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15548881A Granted JPS5856567A (ja) 1981-09-29 1981-09-29 インタ−ホン装置

Country Status (1)

Country Link
JP (1) JPS5856567A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS6325743B2 (enrdf_load_stackoverflow) 1988-05-26

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