JPS526005A - Tone ringer receiving system - Google Patents

Tone ringer receiving system

Info

Publication number
JPS526005A
JPS526005A JP50081909A JP8190975A JPS526005A JP S526005 A JPS526005 A JP S526005A JP 50081909 A JP50081909 A JP 50081909A JP 8190975 A JP8190975 A JP 8190975A JP S526005 A JPS526005 A JP S526005A
Authority
JP
Japan
Prior art keywords
receiving system
tone ringer
ringer receiving
tone
time
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
JP50081909A
Other languages
Japanese (ja)
Inventor
Kazuo Igoma
Masaki Shoji
Shigeru Sasaki
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.)
Oki Electric Industry Co Ltd
Technical Research and Development Institute of Japan Defence Agency
Original Assignee
Oki Electric Industry Co Ltd
Technical Research and Development Institute of Japan Defence Agency
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 Oki Electric Industry Co Ltd, Technical Research and Development Institute of Japan Defence Agency filed Critical Oki Electric Industry Co Ltd
Priority to JP50081909A priority Critical patent/JPS526005A/en
Publication of JPS526005A publication Critical patent/JPS526005A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:The power consumption in a receiving circuit at the non-signalling time (waiting time)shall be nullified or reduced considerably.
JP50081909A 1975-07-04 1975-07-04 Tone ringer receiving system Pending JPS526005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50081909A JPS526005A (en) 1975-07-04 1975-07-04 Tone ringer receiving system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50081909A JPS526005A (en) 1975-07-04 1975-07-04 Tone ringer receiving system

Publications (1)

Publication Number Publication Date
JPS526005A true JPS526005A (en) 1977-01-18

Family

ID=13759562

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50081909A Pending JPS526005A (en) 1975-07-04 1975-07-04 Tone ringer receiving system

Country Status (1)

Country Link
JP (1) JPS526005A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4715005A (en) * 1971-01-18 1972-08-17
JPS5135202A (en) * 1974-09-20 1976-03-25 Tamura Electric Works Ltd YOBIDASHIONKIRIKAEDENWAKI

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4715005A (en) * 1971-01-18 1972-08-17
JPS5135202A (en) * 1974-09-20 1976-03-25 Tamura Electric Works Ltd YOBIDASHIONKIRIKAEDENWAKI

Similar Documents

Publication Publication Date Title
ZA771872B (en) Improvements in d.c.electrical circuit means
JPS526005A (en) Tone ringer receiving system
JPS5213706A (en) Key telephone system
JPS5332605A (en) Telephone line circuit
JPS5251801A (en) Selective calling communication system
JPS5260661A (en) Watch with calculator
JPS53146505A (en) Power circuit for cordless telephone set
JPS528723A (en) Processing circuit of carrier color signal
JPS5233049A (en) Multistage closed switchboard
JPS51128247A (en) Antenna
JPS52123659A (en) Digital electronic wristwatch
JPS5232205A (en) Circuit connecting equipment
JPS51127718A (en) Oscillating board for an electric acoustic converter
JPS5210004A (en) Switching circuit by voice signal
JPS5350265A (en) Plate piece with rice hull
JPS52122009A (en) Busy-tone signal sending
JPS51114037A (en) A peripheral circuit design for fixed insulation-gate semiconductor me mories
JPS52120871A (en) Electronic wrist watch with computor function
JPS52101903A (en) Forecasting tone sending method
JPS5216903A (en) Individual select call receiver
JPS52104A (en) Control circuit for telephone channel connecting device
JPS522267A (en) Transistor switch
JPS5247302A (en) Portable telephone system
JPS51120253A (en) Digital type electronic clock
JPS51112218A (en) Multifrequency signal receiver