JPS6256706B2 - - Google Patents

Info

Publication number
JPS6256706B2
JPS6256706B2 JP4225182A JP4225182A JPS6256706B2 JP S6256706 B2 JPS6256706 B2 JP S6256706B2 JP 4225182 A JP4225182 A JP 4225182A JP 4225182 A JP4225182 A JP 4225182A JP S6256706 B2 JPS6256706 B2 JP S6256706B2
Authority
JP
Japan
Prior art keywords
lsi
frequency signal
common
common contact
push
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
JP4225182A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58159049A (ja
Inventor
Masahiro Osajima
Hirotake Sugihara
Masataka Arai
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP4225182A priority Critical patent/JPS58159049A/ja
Publication of JPS58159049A publication Critical patent/JPS58159049A/ja
Publication of JPS6256706B2 publication Critical patent/JPS6256706B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
JP4225182A 1982-03-17 1982-03-17 押ボタンダイヤル式電子化電話機 Granted JPS58159049A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4225182A JPS58159049A (ja) 1982-03-17 1982-03-17 押ボタンダイヤル式電子化電話機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4225182A JPS58159049A (ja) 1982-03-17 1982-03-17 押ボタンダイヤル式電子化電話機

Publications (2)

Publication Number Publication Date
JPS58159049A JPS58159049A (ja) 1983-09-21
JPS6256706B2 true JPS6256706B2 (ko) 1987-11-26

Family

ID=12630801

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4225182A Granted JPS58159049A (ja) 1982-03-17 1982-03-17 押ボタンダイヤル式電子化電話機

Country Status (1)

Country Link
JP (1) JPS58159049A (ko)

Also Published As

Publication number Publication date
JPS58159049A (ja) 1983-09-21

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