CA2401937A1 - Signaling system - Google Patents

Signaling system Download PDF

Info

Publication number
CA2401937A1
CA2401937A1 CA002401937A CA2401937A CA2401937A1 CA 2401937 A1 CA2401937 A1 CA 2401937A1 CA 002401937 A CA002401937 A CA 002401937A CA 2401937 A CA2401937 A CA 2401937A CA 2401937 A1 CA2401937 A1 CA 2401937A1
Authority
CA
Canada
Prior art keywords
bias voltage
peripheral devices
detection
signaling system
telephone sets
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.)
Granted
Application number
CA002401937A
Other languages
French (fr)
Other versions
CA2401937C (en
Inventor
Philippe Moquin
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.)
Mitel Networks Corp
Original Assignee
Mitel Knowledge Corp
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 Mitel Knowledge Corp filed Critical Mitel Knowledge Corp
Publication of CA2401937A1 publication Critical patent/CA2401937A1/en
Application granted granted Critical
Publication of CA2401937C publication Critical patent/CA2401937C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04M1/02—Constructional features of telephone sets
    • H04M1/21—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
    • H04M1/215—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads by non-intrusive coupling means, e.g. acoustic couplers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets

Abstract

Standard telephone handset ports provide a bias voltage for any attached peripheral devices. The present invention provides bi-directional control signaling whe re telephone sets vary the bias voltage for detection by peripheral devices and where the peripheral devices provide short, load, and no-load conditions for detection by the telephone sets using the bias voltage.
CA002401937A 2001-09-14 2002-09-09 Signaling system Expired - Lifetime CA2401937C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0122288A GB2379831A (en) 2001-09-14 2001-09-14 Signalling between a telephone set and a peripheral device connected to it
GB0122288.4 2001-09-14

Publications (2)

Publication Number Publication Date
CA2401937A1 true CA2401937A1 (en) 2003-03-14
CA2401937C CA2401937C (en) 2007-01-09

Family

ID=9922129

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002401937A Expired - Lifetime CA2401937C (en) 2001-09-14 2002-09-09 Signaling system

Country Status (5)

Country Link
US (1) US7536004B2 (en)
EP (1) EP1294160B1 (en)
CA (1) CA2401937C (en)
DE (1) DE60206861T2 (en)
GB (1) GB2379831A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8103022B2 (en) * 2006-11-30 2012-01-24 Broadcom Corporation Method and system for detecting, and controlling power for, an auxiliary microphone
US7515071B2 (en) * 2006-11-30 2009-04-07 Broadcom Corporation Method and system for audio CODEC voice ADC processing
US8549001B1 (en) * 2013-03-15 2013-10-01 DLZTX, Inc. Method and system for gathering and providing consumer intelligence

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5557653A (en) * 1993-07-27 1996-09-17 Spectralink Corporation Headset for hands-free wireless telephone
US5825837A (en) * 1996-03-11 1998-10-20 General Electric Company Extraction tool for partial length fuel rods in nuclear fuel assemblies
US5838804A (en) * 1996-08-07 1998-11-17 Transcrypt International, Inc. Apparatus and method for providing proper microphone DC bias current and load resistance for a telephone
US5832075A (en) * 1996-09-20 1998-11-03 Mitel Corporation Off-hook detector for headset
US6470197B1 (en) * 1997-08-29 2002-10-22 Veijo Matias Tuoriniemi Headset control system for operating a microcontroller based device
US6683949B1 (en) * 1998-07-08 2004-01-27 Hello Direct, Inc. Handset port interface including DC measurement and transmit path calibration
DE19832664A1 (en) * 1998-07-21 2000-01-27 Deutsche Telekom Ag Method for adapting additional devices to an analog terminal device for telecommunications and device therefor

Also Published As

Publication number Publication date
US20030053616A1 (en) 2003-03-20
US7536004B2 (en) 2009-05-19
GB2379831A (en) 2003-03-19
DE60206861T2 (en) 2006-07-27
DE60206861D1 (en) 2005-12-01
EP1294160A3 (en) 2004-02-04
EP1294160A2 (en) 2003-03-19
EP1294160B1 (en) 2005-10-26
GB0122288D0 (en) 2001-11-07
CA2401937C (en) 2007-01-09

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20220909

MKEX Expiry

Effective date: 20220909