FR2952495B1 - ACCESSORY DEVICE OF WIRELESS TELEPHONE - Google Patents

ACCESSORY DEVICE OF WIRELESS TELEPHONE

Info

Publication number
FR2952495B1
FR2952495B1 FR0905433A FR0905433A FR2952495B1 FR 2952495 B1 FR2952495 B1 FR 2952495B1 FR 0905433 A FR0905433 A FR 0905433A FR 0905433 A FR0905433 A FR 0905433A FR 2952495 B1 FR2952495 B1 FR 2952495B1
Authority
FR
France
Prior art keywords
line
voltage
terminals
jack
accessory device
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 - Fee Related
Application number
FR0905433A
Other languages
French (fr)
Other versions
FR2952495A1 (en
Inventor
Dubreuilh Pascal Heriard
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 FR0905433A priority Critical patent/FR2952495B1/en
Publication of FR2952495A1 publication Critical patent/FR2952495A1/en
Application granted granted Critical
Publication of FR2952495B1 publication Critical patent/FR2952495B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0289—Telephone sets for operators

Abstract

The device has a percutaneous cable (110) connected to a telephone jack of a telephone line of a cable house wiring. A voltage detector unit (202) is constituted of resistors, zener transistors and field-effect transistor to detect the sensitivity to the voltage available at terminals of the jack. The detector unit automatically controls a generator unit generating a signal indicating an occupation state of the line, when the variation of predefined voltage is detected at the terminals. A signaling unit (102) warns the occupied state of the line during the control of the signal.
FR0905433A 2009-11-12 2009-11-12 ACCESSORY DEVICE OF WIRELESS TELEPHONE Expired - Fee Related FR2952495B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0905433A FR2952495B1 (en) 2009-11-12 2009-11-12 ACCESSORY DEVICE OF WIRELESS TELEPHONE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0905433A FR2952495B1 (en) 2009-11-12 2009-11-12 ACCESSORY DEVICE OF WIRELESS TELEPHONE

Publications (2)

Publication Number Publication Date
FR2952495A1 FR2952495A1 (en) 2011-05-13
FR2952495B1 true FR2952495B1 (en) 2012-04-13

Family

ID=42270595

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0905433A Expired - Fee Related FR2952495B1 (en) 2009-11-12 2009-11-12 ACCESSORY DEVICE OF WIRELESS TELEPHONE

Country Status (1)

Country Link
FR (1) FR2952495B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2354668B (en) * 1999-09-22 2001-08-29 Colin Hewitt Telephone off-hook indicator
WO2002030092A1 (en) * 2000-10-06 2002-04-11 Eng Heng Ng Apparatus and method for detecting inoperable and line busy conditions on telephone lines
US20050002518A1 (en) * 2003-02-04 2005-01-06 Daw Bradley M. Voltage monitoring system capable of telephone off hook and ring detection
US7409209B2 (en) * 2003-04-24 2008-08-05 Microsoft Corporation Telephony remote control

Also Published As

Publication number Publication date
FR2952495A1 (en) 2011-05-13

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20130731