CA2068743A1 - Method and apparatus for determining availability of a public base unit for communicating with a cordless telephone in a public cordless telephone system - Google Patents

Method and apparatus for determining availability of a public base unit for communicating with a cordless telephone in a public cordless telephone system

Info

Publication number
CA2068743A1
CA2068743A1 CA2068743A CA2068743A CA2068743A1 CA 2068743 A1 CA2068743 A1 CA 2068743A1 CA 2068743 A CA2068743 A CA 2068743A CA 2068743 A CA2068743 A CA 2068743A CA 2068743 A1 CA2068743 A1 CA 2068743A1
Authority
CA
Canada
Prior art keywords
public
public base
channel
signal
unit
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
CA2068743A
Other languages
French (fr)
Other versions
CA2068743C (en
Inventor
Dale Everett Lynn
Edwin A. Muth
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.)
AT&T Corp
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
Publication of CA2068743A1 publication Critical patent/CA2068743A1/en
Application granted granted Critical
Publication of CA2068743C publication Critical patent/CA2068743C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A public cordless telephone system includes an arrangement for informing a public handset unit when it is within the reception range of a public base unit even though all communication channels are then occupied or all public baseunits in the reception area are then busy communicating with other handset units. In operation, each public base unit while communicating with any public handset unit inserts in the communication channel it is then occupying spectrum energy such as is provided either by a pilot signal or a frequency shift keying (FSK) signal. By providing this additional spectrum energy along with normal voice signal energy in the communication channel, a public handset unit while searching for an available channel and interrogating this channel will be able to determine, even though the channel is occupied, that there is a public base unit within its reception range. If no available communication channel is found and a signal from one or more public base units is detected, the handset unit generates a first alerting signal for its user thereby informing the user of the one or more public base units in the area even though a telephone call may not be initiated due to all of the communication channels then being occupied. If an available communication channel is found, an attempt to establish communication with a public base unit is initiated by the handset unit over this available channel. If no response is received from a public base unit and if a signal from one or more public base units is detected, the handset unit generates a second alerting signal which thereby informs the user of the one or more public base units in the area even though a telephone call may not be initiated due to all of these public base units then being busy.
CA002068743A 1991-06-03 1992-05-15 Method and apparatus for determining availability of a public base unit for communicating with a cordless telephone in a public cordless telephone system Expired - Fee Related CA2068743C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US712,177 1991-06-03
US07/712,177 US5388149A (en) 1991-06-03 1991-06-03 Method and apparatus for determining availability of a public base unit for communicating with a cordless telephone in a public cordless telephone system

Publications (2)

Publication Number Publication Date
CA2068743A1 true CA2068743A1 (en) 1992-12-04
CA2068743C CA2068743C (en) 1996-07-30

Family

ID=24861060

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002068743A Expired - Fee Related CA2068743C (en) 1991-06-03 1992-05-15 Method and apparatus for determining availability of a public base unit for communicating with a cordless telephone in a public cordless telephone system

Country Status (2)

Country Link
US (1) US5388149A (en)
CA (1) CA2068743C (en)

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US5588037A (en) * 1984-09-14 1996-12-24 Accessline Technologies, Inc. Remote access telephone control system
US6201950B1 (en) 1984-09-14 2001-03-13 Aspect Telecommunications Corporation Computer-controlled paging and telephone communication system and method
US5375161A (en) 1984-09-14 1994-12-20 Accessline Technologies, Inc. Telephone control system with branch routing
US5752191A (en) 1984-09-14 1998-05-12 Accessline Technologies, Inc. Telephone control system which connects a caller with a subscriber AT A telephone address
US5594782A (en) * 1994-02-24 1997-01-14 Gte Mobile Communications Service Corporation Multiple mode personal wireless communications system
US6026156A (en) 1994-03-18 2000-02-15 Aspect Telecommunications Corporation Enhanced call waiting
US6029071A (en) * 1994-12-01 2000-02-22 Lucent Technologies Inc. Apparatus and method for synchronizing a cordless telephone base unit and multiple portable units on a common communication channel
JPH08256373A (en) * 1995-03-17 1996-10-01 Hitachi Ltd Radio control signal transmission system, base station and mobile station
US5911120A (en) 1995-09-08 1999-06-08 At&T Wireless Services Wireless communication system having mobile stations establish a communication link through the base station without using a landline or regional cellular network and without a call in progress
US5732360A (en) * 1995-09-08 1998-03-24 At & T Wireless Services And Atmel Corp Mobile telecommunication device and method used for changing wireless communication between base stations of different kinds
US5675629A (en) * 1995-09-08 1997-10-07 At&T Cordless cellular system base station
US6411682B1 (en) 1995-09-21 2002-06-25 Aspect Telecommunications Corporation Computer controlled paging and telephone communication system and method
DE69934931T2 (en) * 1998-03-31 2007-11-15 Koninklijke Philips Electronics N.V. A method of radio range control, wireless radio communication device using this method, base station and handset therefor
US7603139B1 (en) 1999-03-25 2009-10-13 Kantan Inc. Methods and apparatus for a flexible wireless communication and cellular telephone system
US6690947B1 (en) 1999-03-25 2004-02-10 Kantan Inc. Methods and apparatus for a flexible wireless communication and cellular telephone system
US6389293B1 (en) * 2000-05-09 2002-05-14 Cidco Communications Llc Method and apparatus for providing call screening on cordless telephone equipment using three-way calling
US20040005910A1 (en) * 2002-06-25 2004-01-08 Alfred Tom Methods and apparatus for a self-configuring smart modular wireless device
WO2006088582A1 (en) * 2005-02-17 2006-08-24 Kantan Inc. Apparatus for a removable wireless module with storage memory
US8626251B2 (en) * 2006-01-31 2014-01-07 Niels Thybo Johansen Audio-visual system energy savings using a mesh network
US9166812B2 (en) * 2006-01-31 2015-10-20 Sigma Designs, Inc. Home electrical device control within a wireless mesh network
US7680041B2 (en) 2006-01-31 2010-03-16 Zensys A/S Node repair in a mesh network
US8626178B2 (en) * 2006-01-31 2014-01-07 Niels Thybo Johansen Audio-visual system control using a mesh network
US8509790B2 (en) * 2006-01-31 2013-08-13 Tommas Jess Christensen Multi-speed mesh networks
US8300652B2 (en) * 2006-01-31 2012-10-30 Sigma Designs, Inc. Dynamically enabling a secondary channel in a mesh network
US20070177576A1 (en) * 2006-01-31 2007-08-02 Niels Thybo Johansen Communicating metadata through a mesh network
US8219705B2 (en) * 2006-01-31 2012-07-10 Sigma Designs, Inc. Silent acknowledgement of routing in a mesh network
US8194569B2 (en) * 2006-01-31 2012-06-05 Sigma Designs, Inc. Static update controller enablement in a mesh network
US10277519B2 (en) 2006-01-31 2019-04-30 Silicon Laboratories Inc. Response time for a gateway connecting a lower bandwidth network with a higher speed network
US20150187209A1 (en) 2006-01-31 2015-07-02 Sigma Designs, Inc. Method and system for synchronization and remote control of controlling units
US10326537B2 (en) 2006-01-31 2019-06-18 Silicon Laboratories Inc. Environmental change condition detection through antenna-based sensing of environmental change
US8223783B2 (en) * 2006-01-31 2012-07-17 Sigma Designs, Inc. Using battery-powered nodes in a mesh network
US8441580B2 (en) * 2007-09-27 2013-05-14 Himax Technologies Limited Method and system for scanning a frequency channel in digital television
US10637681B2 (en) 2014-03-13 2020-04-28 Silicon Laboratories Inc. Method and system for synchronization and remote control of controlling units
US10637673B2 (en) 2016-12-12 2020-04-28 Silicon Laboratories Inc. Energy harvesting nodes in a mesh network

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59186436A (en) * 1983-04-07 1984-10-23 Sony Corp Cordless telephone
US4639549A (en) * 1984-01-31 1987-01-27 Sony Corporation Cordless telephone
JPS619039A (en) * 1984-06-25 1986-01-16 Sony Corp Multi-channel access radio system
EP0243900B1 (en) * 1986-04-26 1993-07-21 Nec Corporation Radio key telephone system having a common signaling channel
JP2580129B2 (en) * 1986-07-18 1997-02-12 ソニー株式会社 Transceiver
JPH0681093B2 (en) * 1986-08-25 1994-10-12 日本電気株式会社 Wireless communication system
US4878239A (en) * 1987-08-10 1989-10-31 The Telephone Connection Anonymous interactive telephone system with expanded outward calling features
JP3003131B2 (en) * 1989-01-18 2000-01-24 ソニー株式会社 Cordless telephone
US4953198A (en) * 1989-07-05 1990-08-28 At&T Company Public cordless telephone
US5044010A (en) * 1990-03-29 1991-08-27 At&T Bell Laboratories Arrangement and method for selecting an available communication channel for a cordless telephone

Also Published As

Publication number Publication date
CA2068743C (en) 1996-07-30
US5388149A (en) 1995-02-07

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 20090515