CA2124104A1 - Detecteur de combine decroche pour appareil de lecture automatique de compteur - Google Patents

Detecteur de combine decroche pour appareil de lecture automatique de compteur

Info

Publication number
CA2124104A1
CA2124104A1 CA 2124104 CA2124104A CA2124104A1 CA 2124104 A1 CA2124104 A1 CA 2124104A1 CA 2124104 CA2124104 CA 2124104 CA 2124104 A CA2124104 A CA 2124104A CA 2124104 A1 CA2124104 A1 CA 2124104A1
Authority
CA
Canada
Prior art keywords
circuit
hook
transistor
telephone
loop current
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.)
Abandoned
Application number
CA 2124104
Other languages
English (en)
Inventor
Ray J. Thornborough
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.)
Badger Meter Inc
Original Assignee
Badger Meter Inc
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 Badger Meter Inc filed Critical Badger Meter Inc
Publication of CA2124104A1 publication Critical patent/CA2124104A1/fr
Abandoned 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
    • H04M1/82—Line monitoring circuits for call progress or status discrimination

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
CA 2124104 1993-08-16 1994-05-20 Detecteur de combine decroche pour appareil de lecture automatique de compteur Abandoned CA2124104A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10814193A 1993-08-16 1993-08-16
US08/108,141 1993-08-16

Publications (1)

Publication Number Publication Date
CA2124104A1 true CA2124104A1 (fr) 1995-02-17

Family

ID=22320546

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2124104 Abandoned CA2124104A1 (fr) 1993-08-16 1994-05-20 Detecteur de combine decroche pour appareil de lecture automatique de compteur

Country Status (2)

Country Link
CA (1) CA2124104A1 (fr)
GB (1) GB2281471A (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6277727A (ja) * 1985-09-30 1987-04-09 Nec Corp コ−ドレス電話機用回線切替回路
US5291545A (en) * 1990-10-02 1994-03-01 Intertex Data Ab Apparatus and method for determining the state of a telephone line

Also Published As

Publication number Publication date
GB2281471A (en) 1995-03-01
GB9410827D0 (en) 1994-07-20

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Legal Events

Date Code Title Description
FZDE Dead