US Patent No: 5,040,209

Number of patents in Portfolio can not be more than 2000

Telephone ringing monitoring and control system

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Importance

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Abstract

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A control system for use in a conventional telecommunications system comprising a common telephone line to which plural telephones may be connected. The line is arranged to carry plural series of electrical ring-initiating signals, each for a respective one of plural telephone numbers serviced by the line. The control system comprises plural controllable ports and a controller. Each of the ports is associated with a respective one of the series of ring-initiating signals and is arranged to have a telephone and/or some auxiliary device, e.g., FAX machine, answering machine, computer, etc., connected thereto. The controller is coupled to the line and the controllable ports and detects an analyzes each of the plural ring-initiating signals on the line and also monitors the status of the line, e.g., if there is a "busy signal", an "on-hook signal", an "off-hook signal", or other signal on it. Depending upon line conditions the system controls the ports to which the telephones or other devices are connected, e.g., it precludes the first of the ring-initiating signals from reaching any port, analyzes those signals and thereafter diverts the remaining ring-initiating signals of any particular series to the associated port while continuing to preclude the remaining signals from reaching the other ports.

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First Claim

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Patent Owner(s)

  • Assignment data not available. Check USPTO

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Adler, Andrew Ottawa, CA 6 143
Greenberg, Melvin B North Miami Beach, FL 5 101
Sarley, Donald J 7772 Harbor Blvd., Miramar, FL 33023 1 43

Cited Art Landscape

Patent Info (Count) # Cites Year
 
AVAYA TECHNOLOGY CORP. (1)
4,560,837 Call transfer method and circuitry 10 1983
 
Bell Telephone Laboratories, Incorporated (1)
4,873,716 Path allocation arrangement for multi-terminal groups 3 1988
 
Charles Industries, Ltd. (1)
4,782,518 Apparatus for converting distinctive ring to selective ring in telephone lines 31 1987
 
EXTEL CORPORATION, A CORP. OF DE (1)
4,850,008 Method and apparatus for discrimination between different kinds of data transmission 35 1988
 
OM ELECTRONIC SYSTEMS CORP., 7419 STONE PINE LANE, HOUSTON, TEXAS 77041-1726 (1)
4,675,899 Frequency ring director 10 1985
 
Other [Check patent profile for assignment information] (2)
4,741,024 Selective ringing circuit for a telephone 17 1985
4,922,529 Automatic hangup apparatus for restoring service to off-hook telephones 49 1988

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
BROTHER KOGYO KABUSHIKI KAISHA (6)
5,748,712 Facsimile system of distinctive ringing type capable of automatic facsimile reception even when received call signal calls telephone number for telephone reception 3 1994
5,673,313 Telephone set of distinctive ringing type wherein pattern of telephone number call signal is registered for determination of telephone number being called 3 1994
5,649,007 Telephone set of distinctive ringing type capable of generating different calling sounds after the telephone set is connected to remote calling party 12 1994
5,659,607 Telephone set 2 1994
5,901,218 Telephone set capable of initiating facsimile communication without distinctive ringing upon reception of facsimile call signal 2 1997
5,991,371 Communication apparatus 1 1997
 
SBC PROPERTIES, L.P. (5)
6,498,835 Method and system for providing visual notification in a unified messaging system 47 2000
6,782,079 Method and system for filter based message processing in a unified messaging system 7 2002
7,068,762 Method and system for providing visual notification in a unified messaging system 15 2002
6,868,144 Method and system for interfacing systems unified messaging with legacy systems located behind corporate firewalls 7 2002
7,162,014 Method and system for interfacing systems unified messaging with legacy systems located behind corporate firewalls 4 2004
 
Zoom Telephonics, Inc. (4)
5,361,296 Modem with ring detection/modem processing capability 128 1991
5,835,578 Modem with ring detection/modem processing capability 6 1996
6,081,587 Modem with ring detection/modem processing capability 45 1998
6,289,087 Modem with ring detection/modem processing capability 0 2000
 
LUCENT TECHNOLOGIES INC. (3)
5,699,419 Analog multibutton telephone keysets 14 1994
5,771,283 Method for delivering enhanced caller identification service in a telecommunications network 188 1995
6,026,152 Ring count controlled by incoming call related information 32 1997
 
AT&T CORP. (2)
5,544,235 Identification of called directory number at multiple directory number per line premises prior to ringing signal reception 34 1994
5,724,411 Method for selectively alerting multiple telephones of an incoming call 110 1995
 
BOSTON SCIENTIFIC SCIMED, INC. (2)
6,101,410 Unified switching system with floating substrate for electrophysiological stimulation and signal recording and analysis 8 1998
6,615,073 Unified switching system for electrophysiological stimulation and signal recording and analysis 5 2000
 
CANON KABUSHIKI KAISHA (2)
5,572,586 Communication control apparatus and method and communication exchange apparatus and method 10 1993
5,563,932 Communication apparatus connectable to switching network providing distinctive ringing pattern service 15 1995
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (2)
5,537,657 Telecommunications device with means for learning and responding to a distinctive ring cadence 16 1995
5,748,719 Relay circuit for telephone interface 0 1995
 
ALVA CORPORATION (1)
5,544,241 Telephone ring detector 65 1995
 
BELLSOUTH INTELLECTUAL PROPERTY MANAGEMENT CORPORATION (1)
6,947,534 Telephone intercom methods and systems 0 2001
 
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY (1)
6,016,339 Telecommunication network using signalling without activating alerting devices in consumer's premises 1 1996
 
CASIO COMMUNICATIONS, INC. (1)
5,577,104 Method for system and message activation based on distinctive ringing 59 1994
 
COLONIAL DATA TECHNOLOGIES CORP. (1)
5,228,080 Method and apparatus for processing an incoming telephone call signal which may include a data message 66 1990
 
DANISH INTERNATIONAL, INC. (1)
5,339,358 Telephone keypad matrix 63 1992
 
ERICSSON INC. (1)
5,926,537 Generating a distinctive ring tone for a calling party subscriber within a telecommunications network 75 1997
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
6,880,012 System, method, and program for establishing modem communication between a master computer system and a plurality of slave computer systems through a common serial communication channel 1 2000
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
5,699,410 Automatic telephone answering apparatus 11 1995
 
NORTEL NETWORKS LIMITED (1)
5,953,407 Distinctive ringing and distinctive call-waiting tones in an ISDN 5 1996
 
NORTHERN TELECOM LIMITED (1)
8,687,773 Method and system for interfacing systems unified messaging with legacy systems located behind corporate firewalls 0 2007
 
QWEST COMMUNICATIONS INTERNATIONAL INC. (1)
5,978,469 Apparatus for telephone extension control 33 1997
 
SPHERIX INCORPORATED (1)
5,892,814 Flexible, tapeless, personalized auto-attendant telephone 29 1996
 
TEXAS INSTRUMENTS INCORPORATED (1)
5,638,424 Telephone voice mail delivery system 53 1996
 
Other [Check patent profile for assignment information] (3)
5,530,951 Telephone line sharing apparatus 11 1994
5,528,675 Network interface unit 25 1995
5,930,351 Remote telephone ringer controller 8 1996

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