FR2432250A1 - Telephone call cost determining device - has coil sensing cost pulses and amplifies them for processing and display - Google Patents

Telephone call cost determining device - has coil sensing cost pulses and amplifies them for processing and display

Info

Publication number
FR2432250A1
FR2432250A1 FR7822763A FR7822763A FR2432250A1 FR 2432250 A1 FR2432250 A1 FR 2432250A1 FR 7822763 A FR7822763 A FR 7822763A FR 7822763 A FR7822763 A FR 7822763A FR 2432250 A1 FR2432250 A1 FR 2432250A1
Authority
FR
France
Prior art keywords
cost
pulses
display
amplifies
telephone
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.)
Withdrawn
Application number
FR7822763A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7822763A priority Critical patent/FR2432250A1/en
Publication of FR2432250A1 publication Critical patent/FR2432250A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/28—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Meter Arrangements (AREA)

Abstract

The cost of telephone calls is determined by an instrument which is mechanically and electrically independent of the telephone. A coil senses the cost pulses and amplifies them for processing to permit display of the cost. A box adjacent to a telephone contains an induction coil within the senses the counting pulses in an induction coil within the telephone. The signals are amplified and fitted to suppress parasitic signals and sound peaks. A counting circuit records the pulses and determine the number of telephonic units. This operates in conjunction with a memory in which the cost per unit is entered. The cost is displayed on a numerical display which also allows display of total cost to date.
FR7822763A 1978-07-25 1978-07-25 Telephone call cost determining device - has coil sensing cost pulses and amplifies them for processing and display Withdrawn FR2432250A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7822763A FR2432250A1 (en) 1978-07-25 1978-07-25 Telephone call cost determining device - has coil sensing cost pulses and amplifies them for processing and display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7822763A FR2432250A1 (en) 1978-07-25 1978-07-25 Telephone call cost determining device - has coil sensing cost pulses and amplifies them for processing and display

Publications (1)

Publication Number Publication Date
FR2432250A1 true FR2432250A1 (en) 1980-02-22

Family

ID=9211462

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7822763A Withdrawn FR2432250A1 (en) 1978-07-25 1978-07-25 Telephone call cost determining device - has coil sensing cost pulses and amplifies them for processing and display

Country Status (1)

Country Link
FR (1) FR2432250A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033573A1 (en) * 1980-02-01 1981-08-12 Dag Bille Svensk Idéutveckling AB An electronic telephone call debiting meter for a subscriber's telephone set

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033573A1 (en) * 1980-02-01 1981-08-12 Dag Bille Svensk Idéutveckling AB An electronic telephone call debiting meter for a subscriber's telephone set

Similar Documents

Publication Publication Date Title
US4304968A (en) Telephone electronic answering device
BE770893Q (en) FLAT DIAPHRAGM FOR SOUND TRANSDUCERS AND PROCESS FOR MAKING SUCH A DIAPHRAGM
IT1098946B (en) DEVICE FOR FIXING AN ACOUSTIC TRANSDUCER TO A CONTAINER
JPS5358704A (en) Device for amplifying acoustic signal
TR28599A (en) Device for detecting the effect of impulse magnetic fields on an organism.
IT7809515A0 (en) EQUIPMENT FOR RECORDING ECHO PULSES SUITABLE FOR DETECTING NON-HOMOGENITY FOR EXAMPLE IN WELDING
FR2432250A1 (en) Telephone call cost determining device - has coil sensing cost pulses and amplifies them for processing and display
ES472629A1 (en) Telephone call charge monitor
SE8006312L (en) ELECTRONIC TIME SHARING SWITCHING SYSTEM
JPS5537038A (en) Automatic displaying and recording device of telephone charge
DE3168746D1 (en) Electronic time piece including an electro-acoustic transducer
ES498971A0 (en) AN ELECTRONIC DEVICE METER FOR TELEPHONE CALL DEBITS
JPS55151841A (en) Recorder for telephone call information
NO153785C (en) DEVICE FOR DETERMINING THE TIME OF RECEIPT FOR AN ACOUSTIC IMPULSE IN A TRANSDUCER.
SE7702328L (en) COMPUTER DEVICE WITH TWO INDEPENDENT RECORDS
JPS56164986A (en) Data processor
FR2352458A1 (en) Telephone call charge signal evaluator - inductively receives pulses in independent unit which are amplified, rectified, counted and displayed
RU94018160A (en) ULTRASONIC LEVEL SENSOR
FR2377737A1 (en) Answering machine for recording telephone messages - includes detector permitting owner to determine by telephone that messages are recorded
JPS57109077A (en) Electronic desk calculator
CA501560A (en) Electronic signal recording system and apparatus
JPS57109076A (en) Electronic desk calculator
GB1534476A (en) Accounting means for use with vending machines
AT383238B (en) CASH DEVICE FOR COIN SPEAKER
JPS57207465A (en) Automatic answering telephone set

Legal Events

Date Code Title Description
ST Notification of lapse