Top 100 US Patents in Telephony
section h - electricity > electric communication technique > telephonic communication
Sorted by IPQ® Score, an objective measure of patent quality. View scores and methodology at PatentRatings.com. You can also view all by publication date instead.
US6418461 (B1), filed
Aug 05, 1998
, published
Jul 09, 2002
- MCI COMMUNICATIONS CORP
The present invention provides an intelligent call processor, an intelligent switching node and an intelligent communications network for use in a communications system. The intelligent call processor comprises a logical platform having a plurality of...
US7146156 (B2), filed
Apr 14, 2003
, published
Dec 05, 2006
- GTE WIRELESS INC
A cellular radiotelephone system ( 10 ) includes mobile stations ( 28 ) which may be remotely programmed from a customer activation system ( 12 ) to effect activation and other programming needs. Mobile stations ( 28 ) are manufactured in a blank form that...
US4975941 (A), filed
Sep 21, 1987
, published
Dec 04, 1990
- DYTEL CORP
Disclosed is an intercept system for integrating the personalized services of switchboard attendants associated with on-premises PBX switching systems with the capabilities of the intercept system for allowing calling parties the opportunity to complete their...
US5689641 (A), filed
Oct 01, 1993
, published
Nov 18, 1997
- VICOR INC
A multimedia collaboration system that integrates separate real-time and asynchronous networks-the former for real-time audio and video, and the latter for control signals and textual, graphical and other data-in a manner that is interoperable across different...
US4635868 (A), filed
Jul 08, 1985
, published
Jan 13, 1987
- JACOBSON SAVA
An end of rewind detector in a telephone answering device utilizes at least one tape cassette having a spindle. A rotating member which is made of a conductive plastic material containing carbon particles to exhibit intermittant conductivity characteristics...
US4996705 (A), filed
Sep 01, 1987
, published
Feb 26, 1991
- AT T BELL LAB
A lottery system using a public switched network to enter a lottery and to receive an indication of winning while connected on a lottery call. A lottery customer dials a telephone number to enter the lottery. The customer has his eligibility verified by a...
US4241237 (A), filed
Jan 26, 1979
, published
Dec 23, 1980
- METRETEK INC
A remote unit for a remote meter reading system. The remote unit initiates a telephone call to a central complex at a predetermined callback time. In response to an acknowledgement signal indicative of a completed connection, the remote unit transmits indicia...
US5732212 (A), filed
Jan 13, 1994
, published
Mar 24, 1998
- FOX NETWORK SYSTEMS INC
A system and method for accessing, controlling and monitoring a data processing device in which a video raster signal from the data processing device is analyzed to determine the information displayed on a video display monitor attached to the data processing...
US4937851 (A), filed
Apr 28, 1989
, published
Jun 26, 1990
- KEPTEL INC
A system is disclosed for verifying the integrity of each one of a number of communication paths, illustratively telephone subscriber loops, that runs between a near end location, illustratively a telephone company central office, and a corresponding remote...
US6523079 (B2), filed
Feb 15, 2001
, published
Feb 18, 2003
- ELONEX TECHNOLOGIES INC
A personal digital assistant module with a local CPU, memory, and I/O interface has a host interface comprising a bus connected to the local CPU and a connector at a surface of the personal digital assistant for interfacing to a bus connector of a host...
US7460507 (B2), filed
Feb 20, 2004
, published
Dec 02, 2008
- BROADCOM CORP
A packet-based, hierarchical communication system, arranged in a spanning tree configuration, is described in which wired and wireless communication networks exhibiting substantially different characteristics are employed in an overall scheme to link portable...
US7433855 (B2), filed
Jul 24, 2003
, published
Oct 07, 2008
- MCI COMMUNICATIONS CORP
A system, method and computer program product for processing event records. The present invention includes a detection layer, an analysis layer, an expert systems layer and a presentation layer. The layered system includes a core infrastructure and a...
US5946616 (A), filed
Sep 20, 1994
, published
Aug 31, 1999
- TELULAR CORP
An apparatus for interfacing at least one landline telephone service, at least one wireless cellular-type telephone service, at least one cellular-type wireless telephone and at least one standard telephonic type communication device through standard building...
US6044140 (A), filed
Sep 04, 1997
, published
Mar 28, 2000
- ASPECT COMMUNICATIONS CORP
Disclosed is an intercept system for integrating the personalized services of switchboard attendants associated with on-premises PBX switching systems, with the capabilities of the intercept system for allowing calling parties the opportunity to complete their...
US6219694 (B1), filed
May 29, 1998
, published
Apr 17, 2001
- RES IN MOTION LTD
A system and method for pushing information from a host system to a mobile data communication device upon sensing a triggering event is disclosed. A redirector program operating at the host system enables a user to continuously redirect certain user-selected...
US5809119 (A), filed
Jun 20, 1996
, published
Sep 15, 1998
- HITACHI LTD
A communication method for providing information in an intelligent network includes a step of entering by a user a connection number of the user terminal, a connection number of an information provider terminal and a time to receive the information providing...
US5999827 (A), filed
Sep 17, 1997
, published
Dec 07, 1999
- SONY CORP
A communication terminal apparatus such as a portable telephone apparatus has a main body, a selection operation unit, an operation inputting unit, a display unit, and a controller. The main body has a speaker and a microphone. The selection operation unit is...
US6561669 (B2), filed
Nov 20, 2001
, published
May 13, 2003
- TECHNOLOGY CREATIONS INC
An illumination device that can use a white light diode in a flexible arm plugs into, and is powered through, a utility power jack of a portable computing device or a utility port of a portable computing device.
US5949891 (A), filed
Nov 16, 1994
, published
Sep 07, 1999
- INTEL CORP
An audio processing system applies a filter to convert the audio signals generated by the microphone of a combined microphone/speaker earpiece into filtered audio signals, where the filter is designed to correct for distortions in the audio signals that result...
US6491406 (B2), filed
Jan 09, 2002
, published
Dec 10, 2002
- TECHNOLOGY CREATIONS INC
A pass-thru illumination apparatus and method for illuminating an object associated with a portable electronic or computing device. The apparatus includes a first plug and one or more ports, a body connected to the first plug, and one or more illumination...
US5590181 (A), filed
Oct 15, 1993
, published
Dec 31, 1996
- LINK USA CORP
A system and method for processing telephone calls and providing enhanced services is presented. The call processing system includes a network control processor for controlling the processing and routing of the calls and for providing enhanced features, and a...
US6428177 (B1), filed
Jan 24, 2002
, published
Aug 06, 2002
- TECHNOLOGY CREATIONS INC
An illumination apparatus for illuminating an object associated with a portable handheld video game device having a port in electrical connection with at least one power source. The illumination apparatus includes a plug for plugging the apparatus into the...
US5506954 (A), filed
Nov 24, 1993
, published
Apr 09, 1996
- INTEL CORP
A video subsystem resides partially on a host processor and partially on a video board. Audio and communications subsystems reside partially on the host processor and partially on a audio/communications board. The video subsystem generates and passes local...
US6749314 (B2), filed
Nov 18, 2002
, published
Jun 15, 2004
- TECHNOLOGY CREATIONS INC
The present invention involves an apparatus for illuminating a display screen of a handheld portable video game device having a utility power jack or communication port in electrical connection with a power source. The apparatus includes a plug for plugging...
US6819749 (B1), filed
Jul 27, 1999
, published
Nov 16, 2004
- MINDSPEED TECH INC
A fast startup procedure for a modem system utilizes known characteristics of a previously established communication channel to reduce the initialization period associated with subsequent connections over the same channel. In response to the establishment of a...
US6137839 (A), filed
Oct 31, 1996
, published
Oct 24, 2000
- TEXAS INSTRUMENTS INC
A discrete multitone (DMT) digital subscriber loop (xDSL) telecommunication system has a transmitter portion including a bit encoder, inverse fast Fourier transform (FFT), parallel-to-serial converter, digital-to-analog converter and line driver for transmitti...
US5878186 (A), filed
May 24, 1993
, published
Mar 02, 1999
- ENGATE INC
A transcription network having linked computer terminals for a court reporter and for examining, defending, and associate attorneys is disclosed. Based on the hardware present, the court reporter terminal automatically selects the most appropriate synchronizat...
US6788931 (B2), filed
Sep 27, 2002
, published
Sep 07, 2004
- METRO ONE TELECOMMUNICATIONS
A cellular telephone subscriber who wishes directory assistance services is connected in the conventional manner to an operator who identifies a destination telephone number desired by the subscriber. As in the prior art, the operator then initiates a call...
US7440416 (B2), filed
Dec 15, 2003
, published
Oct 21, 2008
- BROADCOM CORP
A hierarchical communication system, arranged in a spanning tree configuration, is described in which wired and wireless communication networks exhibiting substantially different characteristics are employed in an overall scheme to link portable or mobile...
US5008900 (A), filed
Aug 14, 1989
, published
Apr 16, 1991
- INT MOBILE MACHINES
A subscriber unit for wireless communication with a base station in a wireless subscriber communication system includes a FIR chip, a DIF (digital intermediate frequency) chip, a single processor chip and a radio. The processor chip transcodes a digital voice...
US5438607 (A), filed
Nov 25, 1992
, published
Aug 01, 1995
- U S MONITORS LTD
A programmable monitoring system for personal use in a home, medical ward, office or other localized area features a radio receiving base unit and one or more low power, radio-frequency battery-powered wireless transmitter units, each capable of transmitting...
US5111497 (A), filed
Sep 17, 1990
, published
May 05, 1992
- RAYCHEM CORP
A test system directed to apparatus for transmitting and receiving multiple telephone transmission signals over a single twisted pair. The system converts an analog signal from a local switching station to an 80 ksymbols/sec signal for transmission over a...
US5195125 (A), filed
Nov 12, 1991
, published
Mar 16, 1993
- RAYCHEM CORP
A test system directed to apparatus for transmitting and receiving multiple telephone transmission signals over a single twisted pair. The system converts an analog signal from a local switching station to an 80 ksymbols/sec signal for transmission over a...
US7403947 (B2), filed
Apr 01, 2003
, published
Jul 22, 2008
- AT T KNOWLEDGE VENTURES LP
A method and system for providing computer-network related information about a calling party. First, the called party receives a telephone number of a calling party. The called party's customer premises equipment (CPE) or elements in a telephone network then...
US5878339 (A), filed
Feb 06, 1998
, published
Mar 02, 1999
- GTE MOBILE COMM SERVINC
A cellular radiotelephone system (10) includes mobile stations (28) which may be remotely programmed from a customer activation system (12) to effect activation and other programming needs. Mobile stations (28) are manufactured in a blank form that causes them...
US4163254 (A), filed
Feb 14, 1977
, published
Jul 31, 1979
- BLOCK ROBERT S
A subscription television system and method in which billing information regarding programs actually viewed by a subscriber of the system is accumulated over non-dedicated telephone lines. A scrambled television program signal containing a block of television...
US4225884 (A), filed
Jun 30, 1978
, published
Sep 30, 1980
- TELEASE INC
A subscription television system and method in which billing information regarding programs actually viewed by a subscriber of the system is accumulated over non-dedicated telephone lines. A scrambled television program signal containing a block of television...
US6154465 (A), filed
Oct 06, 1998
, published
Nov 28, 2000
- VERTICAL NETWORKS INC
Systems and methods by which voice/data communications may occur in multiple modes/protocols are disclosed. In particular, systems and methods are provided for multiple native mode/protocol voice and data transmissions and receptions with a computing system...
US4675863 (A), filed
Mar 20, 1985
, published
Jun 23, 1987
- INT MOBILE MACHINES
A system for the wireless transmission of multiple information signals utilizing digital time division circuits between a base station and a plurality of subscriber stations. The subscriber stations may be fixed or movable. The number of time division circuits...
US6481866 (B2), filed
Jan 25, 2002
, published
Nov 19, 2002
- TECHNOLOGY CREATIONS INC
An illumination apparatus for illuminating an object associated with a portable handheld video game device having a port in electrical connection with at least one power source. The illumination apparatus includes a plug for plugging the apparatus into the...
US5943403 (A), filed
Jul 08, 1998
, published
Aug 24, 1999
- US ADVANCE NETWORK INC
Method and apparatus for providing customized, billing-controlled call bridging services through a bridging node which includes a node interface for connection through incoming and outgoing telephone trunks to a carrier switch of a public switched network, an...
US4792968 (A), filed
Feb 24, 1987
, published
Dec 20, 1988
- FDR INTERACTIVE TECHNOLOGIES
For use with a public communication facility C incorporating terminals T1-TN, e.g. a telephone system, a statistical analysis system D interfaces with individual stations where a caller is prompted by voice instructions to provide digital data that is...
US6527409 (B1), filed
Nov 17, 2000
, published
Mar 04, 2003
- TECHNOLOGY CREATIONS INC
The present invention involves an apparatus for illuminating a display screen of a handheld portable video game device having a utility power jack or communication port in electrical connection with a power source. The apparatus includes a plug for plugging...
US5369704 (A), filed
Mar 24, 1993
, published
Nov 29, 1994
- ENGATE INC
A transcription network having linked computer terminals for a court reporter and for examining, defending, and associate attorneys is disclosed. Real-time transcription text is communicated from the reporter's terminal through the network. Secure message...
US7024189 (B2), filed
Apr 15, 2004
, published
Apr 04, 2006
- TELULAR CORP
A Bluetooth-wireless docking station for use with a Bluetooth-enabled cellular mobile handset, which docking station allows mobility to the cellular mobile handset rather than having to be fixed stationarily in the docking station, which docking station...
US7471698 (B2), filed
Apr 08, 2003
, published
Dec 30, 2008
- SPRINT COMMUNICATIONS CO
The present invention is an apparatus, system, and method for converting point codes in a signal transfer point in a telecommunications signaling system. The STP converts point codes which designate the origination and destination signaling points for the...
US5956324 (A), filed
Oct 30, 1997
, published
Sep 21, 1999
- APPLIED DIGITAL ACCESS INC
A DS3 level access, monitor and test system for a telephone network. The system provides selective, and hitless, bit overwrite in any of the embedded DS1, DS0 and subrate channels in a DS3 signal. Multiple DS0 and subrate channels can be tested via the...
US5946387 (A), filed
Feb 19, 1997
, published
Aug 31, 1999
- GENESYS TELECOMM LAB INC
A computerized telephony call center for serving a customer base has a central switch connected to a plurality of telephones at operator workstations and adapted to route calls to individual ones of the telephones, and also connected to a public switched...
US5127043 (A), filed
May 15, 1990
, published
Jun 30, 1992
- VCS IND INC
The present invention describes a system and method for enabling a caller to obtain access to services via a telephone network by entering a spoken password having a plurality of digits. Preferably, the method includes the steps of: (1) prompting the caller to...
US5666401 (A), filed
Mar 08, 1996
, published
Sep 09, 1997
- SYNTELLECT ACQUISITION CORP
Disclosed is an intercept system for integrating the personalized services of switchboard attendants associated with on-premises PBX switching systems, with the capabilities of the intercept system for allowing calling parties the opportunity to complete their...
US6260984 (B1), filed
Apr 21, 2000
, published
Jul 17, 2001
- TECHNOLOGY CREATIONS INC
An illumination device that can use a white light diode in a flexible arm plugs into, and is powered through, a utility power jack of a portable computing device or a utility port of a portable computing device.
US6895450 (B2), filed
Apr 16, 2002
, published
May 17, 2005
- BROADCOM CORP
An apparatus and a method for routing data in a radio data communication system having one or more host computers, one or more intermediate base stations, and one or more RF terminals organizes the intermediate base stations into an optimal spanning-tree...
US4994926 (A), filed
Sep 22, 1988
, published
Feb 19, 1991
- MAIL ASSOCIATES L P F
US4696028 (A), filed
Mar 26, 1984
, published
Sep 22, 1987
- DYTEL CORP
Disclosed is an intercept system for integrating the personalized services of switchboard attendants associated with on-premises PBX switching systems with the capabilities of the intercept system for allowing calling parties the opportunity to complete their...
US4994926 (B1), filed
Sep 22, 1988
, published
Aug 18, 1998
- AUDIOFAX IP L L C
US4994926 (C1), filed
Sep 22, 1988
, published
Jul 03, 2001
- AUDIOFAX IP L L C
US4893335 (A), filed
Mar 20, 1986
, published
Jan 09, 1990
- FULLER RES DEV
A telephone control system connects to the telephone line from a telephone exchange. The control system includes a detector for detecting signals on the line, a signal generator for producing and applying control signals to the telephone line, memory for...
US6396920 (B1), filed
Jun 07, 1999
, published
May 28, 2002
- METRO ONE TELECOMMUNICATIONS
A mobile telephone, or personal communication services subscriber who wishes directory assistance services is connected in the conventional manner to an operator who identifies a destination telephone number desired by the subscriber. As known in the prior...
US5675507 (A), filed
Apr 28, 1995
, published
Oct 07, 1997
A Message Storage and Deliver System (MSDS) is connected to a plurality of DID phone lines and receives facsimile messages, voice messages, and data messages. The MSDS assigns a separate telephone number for each user of the system and can simultaneously...
US5742905 (A), filed
Sep 19, 1994
, published
Apr 21, 1998
- BELL COMMUNICATIONS RES
A person communications internetworking provides a network subscriber with the ability to remotely control the receipt and delivery of wireless and wireline voice and text messages. The network operates as an interfaces between various wireless and wireline...
US6069890 (A), filed
Jun 26, 1996
, published
May 30, 2000
- BELL ATLANTIC NETWORK SERVICES
A system and method for providing telephone type services over the internetwork commonly known as the Internet. Public switched telephone networks utilizing program controlled switching systems are arranged in an architecture with the Internet to provide a...
US6435692 (B1), filed
Oct 10, 2000
, published
Aug 20, 2002
- TECHNOLOGY CREATIONS INC
An apparatus and method for illuminating a display screen located in a top portion of a handheld portable video game device having a port in electrical connection with a power source. The apparatus includes a plug for plugging the apparatus into the port, a...
US5914481 (A), filed
Oct 07, 1997
, published
Jun 22, 1999
- NORAND CORP
A pocket-sized hand-held data processing device with a coupling system, a user interface and an optical indicia reader. The device can include a display to display alphanumeric information. The display can have a touch screen input area and a handwritten input...
US4987590 (A), filed
Jan 26, 1990
, published
Jan 22, 1991
- FIRST DATA RESOURCES INC
To interface a primary telephone terminal with a vast number of remote terminals through a telephone network, parties at the remote terminals are individually screened to attain a select group. Bridged together, the select group is preliminarily informed of...
US5029196 (A), filed
Jul 11, 1988
, published
Jul 02, 1991
- DYTEL CORP
A method for facilitating call completions utilizing a call identification telephone number which is transmitted along with an incoming call. A user of the call processor of the invention can program a list of anticipated or preferred call identification...
US5586121 (A), filed
Apr 21, 1995
, published
Dec 17, 1996
- HYBRID NETWORKS INC
An asymmetric network communication system for use in a client-server environment having independent forward and return channels operating at different speeds and/or under different protocols on the same or different communication media to provide efficient...
US5852655 (A), filed
Jan 10, 1997
, published
Dec 22, 1998
- CISCO SYSTEMS INC
A communication server includes a modem pool (652) that comprises a plurality of XDSL modems (660). The communication server also includes a plurality of line interface modules (650). Each line interface module (650) has a plurality of inputs each coupled to a...
USRE37618 (E1), filed
Apr 11, 1997
, published
Apr 02, 2002
An analog to digital data storage system includes receiver means for receiving an incoming signal carrying an analog component from a suitable transmitter. The analog signal is preferably preceded by a designated address code which is specific to a particular...
US4475190 (A), filed
May 27, 1982
, published
Oct 02, 1984
- AT T BELL LAB
For use in multiport digital conference arrangements wherein the speech samples of selected speakers are included in an output sample for distribution to the conferees, the disclosed arrangement features a speech detector for each port and processor-controlled...
US5740366 (A), filed
Feb 28, 1995
, published
Apr 14, 1998
- NORAND CORP
An apparatus and a method for routing data in a radio data communication system having one or more host computers, one or more intermediate base stations, and one or more RF terminals organizes the intermediate base stations into an optimal spanning-tree...
US4845739 (A), filed
May 16, 1988
, published
Jul 04, 1989
- FDR INTERACTIVE TECHNOLOGIES
A system D interfaces with a multiplicity of individual terminals Tl-Tn of a telephone network facility C, at the terminals callers are prompted by voice-generated instructions to provide digital data that is identified for positive association with a caller...
US6580904 (B2), filed
Apr 02, 1998
, published
Jun 17, 2003
- METRO ONE TELECOMMUNICATIONS
A wireless telephone subscriber who wishes directory assistance in the form of directions from one specified location to another is connected to a directory assistance agent. The subscriber identifies a destination location and any requested travel criteria....
US6851819 (B2), filed
Mar 24, 2003
, published
Feb 08, 2005
- TECHNOLOGY CREATIONS INC
An illumination device that can use a white light diode in a flexible arm plugs into, and is powered through, a utility power jack of a portable computing device or a utility port of a portable computing device.
US4905003 (A), filed
Jul 24, 1987
, published
Feb 27, 1990
- HELFERICH RICHARD J
An analog to digital data storage system includes receiver means for receiving an incoming signal carrying an analog component from a suitable transmitter. The analog signal is preferably preceded by a designated address code which is specific to a particular...
USRE36416 (E), filed
May 25, 1995
, published
Nov 30, 1999
- INVENTIONS INC
A method for optimizing the pacing and processing of inbound calls and outbound calls. Statistics are generated concerning inbound calls and outbound calls, and concerning the performance of each agent for inbound calls and outbound calls. Separate statistics...
US6671567 (B1), filed
Nov 12, 1998
, published
Dec 30, 2003
- DICTAPHONE CORP
A portable digital voice recorder is interfaced for data communication with a personal computer. Voice data files are stored in the portable recorder together with header data which indicates the status of the voice data files. In response to a batch upload...
US6431451 (B1), filed
Jun 30, 2000
, published
Aug 13, 2002
- INTERMEC IP CORP
A portable, hand-held data terminal of modular structure includes a base module with a keyboard and a display screen. A data and communications module may be selected from a number of different data and communications modules, each having different types of...
US5990927 (A), filed
Dec 02, 1993
, published
Nov 23, 1999
- DISCOVERY COMMUNICAT INC
A novel advanced set top terminal capable of digital decompression, menu generation, interactivity and other advanced functional capabilities for use in a television program delivery system is described. The invention relates to methods and apparatus for...
US5812535 (A), filed
Aug 30, 1996
, published
Sep 22, 1998
- IBM
Disclosed are call processing methods which are performed by a network terminator located at a subscriber's premise. The network terminator is coupled to a digital network and a communication device at the subscriber's premise and can perform call waiting,...
US6738803 (B1), filed
Dec 14, 1999
, published
May 18, 2004
- CISCO TECH IND
A unified web-based voice messaging system provides voice application control between a proxy browser having a web browser, and an application server via an hypertext transport protocol (HTTP) connection on an Internet Protocol (IP) network. The proxy browser...
US4759056 (A), filed
Nov 09, 1984
, published
Jul 19, 1988
- NIPPO COMMUNICAT IND CO LTD
A communication system offering specific services to specific persons bears a portable memory device with a record of personal information such as the bearer's identification number, class of service, personal data, etc. In making a call, the bearer of the...
US4566030 (A), filed
Jun 09, 1983
, published
Jan 21, 1986
- CTBA ASSOCIATES
A data storage and transmission system is provided for accumulating and transmitting data from a plurality of remote T.V. panelist locations to a central location. Each remote unit includes a microprocessor, a control memory, and a data store memory. The...
US5317627 (A), filed
Mar 16, 1992
, published
May 31, 1994
- US ADVANCED NETWORK INC
Apparatus and method to provide enhanced wide area audio response services through an enhanced wide area audio response network which includes a central controller and a plurality of audio peripherals distributed over a wide area, each audio peripheral being...
US5568540 (A), filed
Apr 14, 1995
, published
Oct 22, 1996
- ACTIVE VOICE CORP
A graphical user interface for the display of voice mail message information and playing voice mail messages through a computer speaker. Using a mouse, the messages can be manipulated individually or in groups. Using the mouse or the keyboard, the sender of a...
US5247347 (A), filed
Sep 27, 1991
, published
Sep 21, 1993
- BELL ATLANTIC NETWORK SERVICES
A public switched telephone network (PSTN) provides digital video signals from a video information provider to one or more of a plurality of subscriber premises. A subscriber uses either a standard telephone instrument over the PSTN or a dedicated control...
US6157711 (A), filed
Mar 07, 1997
, published
Dec 05, 2000
- RONALD A KATZ TECHNOLOGY LICEN
To interface a primary telephone terminal with a vast number of remote terminals through a telephone network, parties at the remote terminals are individually screened to attain a select group. Bridged together, the select group is preliminarily informed of...
US6738617 (B2), filed
Dec 04, 2001
, published
May 18, 2004
- QUALCOMM INC
A method and apparatus for reducing latency in a group communication network provides for a significant reduction in the actual total dormancy wakeup time and the PTT latency by exchanging group call signaling even when mobiles are dormant and no traffic...
US5113430 (A), filed
Oct 01, 1990
, published
May 12, 1992
- US ADVANCED NETWORK INC
Apparatus and method to provide enhanced wide area audio response services through an enhanced wide area audio response network which includes a central controller and a plurality of audio peripherals distributed over a wide area, each audio peripheral being...
US6549587 (B1), filed
Jan 28, 2000
, published
Apr 15, 2003
- BROADCOM CORP
A signal processing system which discriminates between voice signals and data signals modulated by a voiceband carrier. The signal processing system includes a voice exchange, a data exchange and a call discriminator. The voice exchange is capable of...
US5297194 (A), filed
Jun 22, 1992
, published
Mar 22, 1994
- VCS IND INC
The present invention describes a system and method for enabling a caller to obtain access to services via a telephone network by entering a spoken password having a plurality of digits. Preferably, the method includes the steps of: (1) prompting the caller to...
US5572583 (A), filed
May 25, 1994
, published
Nov 05, 1996
- BELL ATLANTIC
A peripheral platform, such as an Intelligent Peripheral (IP), is a network subsystem for use in the Advanced Intelligent Network (AIN). The IP or similar platform will assume some functions presently performed by the Integrated Service Control Point (ISCP)...
US7017178 (B1), filed
Sep 30, 1998
, published
Mar 21, 2006
- SEDNA PATENT SERVICES LLC
The invention relates to apparatus and methods for upgrading a set top terminal for use with a cable television program delivery system. A hardware upgrade or expansion card is connected to a set top terminal to enhance the functionality of the set top...
US6108704 (A), filed
Sep 25, 1995
, published
Aug 22, 2000
- NETSPEAK CORP
A point-to-point Internet protocol exchanges Internet Protocol (IP) addresses between processing units to establish a point-to-point communication link between the processing units through the Internet. A first point-to-point Internet protocol includes the...
US6765931 (B1), filed
Apr 13, 2000
, published
Jul 20, 2004
- BROADCOM CORP
In one aspect of the present invention, a network gateway is configured to facilitate on line and off line bi-directional communication between a number of near end data and telephony devices with far end data termination devices via a hybrid fiber coaxial...
US4581486 (A), filed
Sep 29, 1982
, published
Apr 08, 1986
- VMX INC
An advanced electronic telecommunications system is provided for the deposit, storage and delivery of audio messages to both user and non-users with limited access provided to the non-user under the control of the user. A Voice Message System (10) interconnect...
US5163083 (A), filed
Oct 12, 1990
, published
Nov 10, 1992
- AT T BELL LAB
This invention relates to methods and apparatus for automatically processing operator assistance calls. A caller is connected to an automated operator position. The automated position has speech recognition facilities to replace those of an operator, has...
US5347304 (A), filed
Jul 28, 1993
, published
Sep 13, 1994
- HYBRID NETWORKS INC
A hybrid transmission system is provided to transmit and receive high-speed digital information in the form of variable length packets using standard television practices and components. The basic building block of this hybrid digital transmission system is...
US6816727 (B2), filed
Apr 30, 2003
, published
Nov 09, 2004
- METRO ONE TELECOMMUNICATIONS
A wireless telephone subscriber who wishes directory assistance in the form of directions from one specified location to another is connected to a directory assistance agent. The subscriber identifies a destination location and any requested travel criteria....
US6768791 (B1), filed
Sep 10, 1999
, published
Jul 27, 2004
- PCTEL INC
A quick startup procedure for a modem system utilizes known characteristics of a previously established communication channel to reduce the initialization period associated with subsequent connections over the same channel. In response to the establishment of...
US4792849 (A), filed
Aug 04, 1987
, published
Dec 20, 1988
- TELACTION CORP
The present invention relates to a digital interactive communication system accessible to a plurality of subscribers who can select by means of their touch-tone telephones any of a plurality of pre-recorded video presentations representative of products and...
