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| Number | Title | Issue Date |
| 7400617 | Integrated voice-over-internet protocol processor A single-chip network processor (12) for a Voice-over-Internet Protocol phone integrates a universal serial bus port (21), a pair of IEEE 802.3 MACs (40), and repeater, and a pair of pulse code modulation (PCM) ports (24) such that... | 07/15/2008 |
| 7231271 | Steganographic method for covert audio communications Method for embedding a covert message within a digital audio signal. The existence of the covert message is undetectable and the information content of the covert message can be further rendered unascertainable. Covert message data is embedded within a digital audio... | 06/12/2007 |
| 7197330 | Dual port wireless modem for circuit switched and packet switched data transfer A dual port external wireless modem is disclosed. According to one embodiment, the external wireless modem receives command and control information over a primary serial port, and real-time data over a secondary serial port. The primary serial port is further config... | 03/27/2007 |
| 7136395 | Method and system for transmission of headerless data packets over a wireless link Headerless (i.e., zero byte) data packets are sent by a compressor over a radio bearer. The radio bearer includes a synchronized wireless link. A sequential timer-based value is associated with each of the headerless data packets. A decompressor generates a header b... | 11/14/2006 |
| 7133899 | Method and apparatus for providing interactive text messages during a voice call Embodiments of the present information relate to a method and apparatus for providing interactive text messages to a user's device during a voice call. In one embodiment, information is received from a client and at least a portion of the received information is con... | 11/07/2006 |
| 7106307 | Touch screen for use with an OLED display A touch screen for use with an organic light emitting diode (OLED) display, includes: a substrate having a top side and a bottom side; a plurality of touch screen elements located on the top side of substrate; and a polarizing element for reducing glare and improvin... | 09/12/2006 |
| 7069291 | Systems and processes for call and call feature administration on a telecommunications network Improved systems and methods for call and call feature setup, administration and processing on PSTN and other telecommunications networks are provided. Calls are set up on a service plane of a conceptual switch that includes a switch plane, control plane, and servic... | 06/27/2006 |
| 7039399 | Distribution of wireless telephony and data signals in a substantially closed environment A communication system is provided. The communication system includes a host unit that is adapted to communicate wireless telephony signals with a telephony network and adapted to communicate wireless data with at least one data network. A communication link carries... | 05/02/2006 |
| 7020251 | System and method for the creation and automatic deployment of personalized, dynamic and interactive voice services, with real-time drilling via telephone A method and system for accomplishing real-time drilling in conjunction with interactive, real-time, voice transmission of information to a user is disclosed. A voice-based communication between a user and a first system is established and a report is transmitted to... | 03/28/2006 |
| 7016475 | Extendable call agents simulator A method and associated apparatus for testing telephone system operation. The method comprising connecting a call agent simulator to a network. Call actions or events are applied from the call agent simulator to the network expected to produce expected results in th... | 03/21/2006 |
| 6975718 | Automated route plan generation A communication system includes a tenant with multiple physical locations that include a number of packet enabled telecommunications devices managed by one or more call managers. To generate a route plan for use by a call manager in managing calls from these devices... | 12/13/2005 |
| 6937616 | Method and apparatus for providing packet based and distributed xDSL communications A method and apparatus for digital subscriber line (xDSL) communications between one or more digital signal processors (DSPs) and analog front ends (AFEs) each coupled to corresponding subscriber line(s). The apparatus transports channels of data between subscribers... | 08/30/2005 |
| 6928150 | Call charging notification An approach for providing charging information of a call established over a data network is disclosed. A communications system includes a user agent that initiates a call to another user agent according to an application layer protocol. The system also includes a ne... | 08/09/2005 |
| 6925093 | Communication apparatus, communication system and method for integrating speech and data A communication apparatus, communication system, and method for integrating speech and data for performing high-quality communication by integrating speech and data efficiently are provided. A frame controlling section integrates speech frames, being speech signals ... | 08/02/2005 |
| 6782005 | Communication system and communication method In the communication system which performs the data communication by the discrete multi-tone modem scheme between a plurality of data communication units using the time-division half-duplex communication function, the ratio between the data transmission time suitabl... | 08/24/2004 |
| 6747992 | Communication system and communication method In the communication system, data transmission time suitable for data transmission and the quasi-data transmission time are set in one period in accordance with the transmission path, and first data and second data are transmitted in multiplexed fashion. Bits are as... | 06/08/2004 |
| 6707827 | Method and apparatus for optimizing audio response in telephony-over-LAN systems To improve the quality of audio signals transmitted over a computer network, a source computer (12) and a destination computer (30) that participate in the call exchange information concerning the gain and the frequency characteristics response of the ... | 03/16/2004 |
| 6704406 | Automated route plan generation A communication system includes a tenant with multiple physical locations that include a number of packet enabled telecommunications devices managed by one or more call managers. To generate a route plan for use by a call manager in managing calls from th... | 03/09/2004 |
| 6526058 | VODSL service provision A Digital Access Systems (DAS) Customer Premises Equipment (CPE) comprising: a DAS modem connected to an internal packet switched network having a switch and arranged such that the internal network is coupled to an external packet switched network by a DA... | 02/25/2003 |
| 6424661 | ADSL with RF POTS overlay A bidirectional telephony (POTS or ISDN) system utilizes RF technology to move the signalling away from the baseband frequency. The method translates baseband telephony signalling into one or more RF signals over twisted pair copper channels, in conjuncti... | 07/23/2002 |
| 6320879 | Communication system and method for interleaving or transmission of telephone rings and data A telephone communication system is implemented to enable data communication and ring signaling to coexist on a subscriber loop. The communication system transmits data during the silence intervals of a ringing cadence and withholds the transmission of da... | 11/20/2001 |
| 6256302 | Method for the common transmission of digital and analogue modulated radio broadcasting and/or television broadcasting signals A method is described that is used for common transmission of digital- and analog-modulated radio and/or television signals, in particular over a broad band cable system (30). The method includes transmitting at least one digital radio and/or television s... | 07/03/2001 |
| 6226529 | System for providing a simultaneous data and voice channel within a single channel of a portable cellular telephone to provide position-enhanced cellular services (PECS) An accessory device for portable telephones which provides simultaneous functionality of a hands-free accessory device and a data-in-voice modem enabling a portable telephone to be used in a vehicle such that the driver can be engaged in a hands-free conv... | 05/01/2001 |
| 6154484 | Method and apparatus for embedding auxiliary data in a primary data signal using frequency and time domain processing Auxiliary data is transported in subbands of a primary data signal by hiding the data in the form of colored noise. The colored noise has a spectrum that simulates the spectrum of the primary data signal in each subband. The data to be transported is firs... | 11/28/2000 |
| 6061392 | Apparatus and method for communicating voice and data between a customer premises and a central office A method and apparatus are provided for communicating data across a communication link, in a manner that senses and dynamically adapts to the simultaneous transmission of voice information across the local loop. In accordance with one aspect of the invent... | 05/09/2000 |
| 6055435 | Wireless telephone connection surge suppressor A wireless power line carrier voice and data communication device is provided. The device permits a user to connect one or more electronic devices to surge suppress and isolated AC power connections while simultaneously providing a communication channel b... | 04/25/2000 |
| 5995568 | Method and apparatus for performing frame synchronization in an asymmetrical digital subscriber line (ADSL) system A method and apparatus for performing DMT frame synchronization in an ADSL system begins by providing a training signal (82) to a receiver of the ADSL system (34). The training signal (82) is processed to result in a desired impulse response. The impulse ... | 11/30/1999 |
| 5991309 | Bandwidth management system for a remote repeater network A bandwidth management system for a remote repeater network for modifying a first signal to create a second signal within the bandwidth of a communications link, transferring the second signal across the communications link, and reconstructing the first s... | 11/23/1999 |
| 5937000 | Method and apparatus for embedding auxiliary data in a primary data signal Auxiliary data is transported in a primary data signal by hiding the data in the form of colored noise. The colored noise has a spectrum that simulates the spectrum of the primary data signal. The data to be transported is first converted to a spread spec... | 08/10/1999 |
| 5822360 | Method and apparatus for transporting auxiliary data in audio signals Auxiliary data is transported in a conventional audio signal by hiding the data in the form of colored noise. The colored noise has a spectrum that simulates the spectrum of the primary audio signal. The data to be transported is first converted to a spre... | 10/13/1998 |
| 5764628 | Dual port interface for communication between a voice-over-data system and a conventional voice system A personal communications system enables the operator to simultaneously transmit voice and data communication to a remote site. The personal communications system is equipped with two telephone line interfaces to allow connection between two remote sites.... | 06/09/1998 |
| 5619508 | Dual port interface for a computer-based multifunction personal communication system A personal communications system enables the operator to simultaneously transmit voice and data communication to a remote site. The personal communications system is equipped with two telephone line interfaces to allow connection between two remote sites.... | 04/08/1997 |
| 5617423 | Voice over data modem with selectable voice compression A personal communications system enables the operator to simultaneously transmit voice and data communication to a remote site. The personal communications system is equipped with two telephone line interfaces to allow connection between two remote sites.... | 04/01/1997 |
| 5559793 | Echo cancellation system and method A personal communications system is described which includes components of software and hardware operating in conjunction with a personal computer. The user interface control software operates on a personal computer, preferably within the Microsoft Window... | 09/24/1996 |
| 5535204 | Ringdown and ringback signalling for a computer-based multifunction personal communications system The voice over data component of a personal communications system enables the operator to simultaneously transmit voice and data communication to a remote site. This voice over data function dynamically allocates data bandwidth over the telephone line dep... | 07/09/1996 |
| 5453986 | Dual port interface for a computer-based multifunction personal communication system A personal communications system enables the operator to simultaneously transmit voice and data communication to a remote site. The personal communications system is equipped with two telephone line interfaces to allow connection between two remote sites.... | 09/26/1995 |
| 5136586 | Method and apparatus for telephone line multiplex channeling of toll-quality voice and digital information A method and apparatus for telephone line multiplex channeling of toll-quality voice and modem-encoded digital data from telecommunication devices (FAX, computers, displays, printers, etc.) involving variably sample-compression of digitally converted voic... | 08/04/1992 |
| 5036513 | Method of and apparatus for integrated voice (audio) communication simultaneously with "under voice" user-transparent digital data between telephone instruments A novel method of and apparatus for voice communication and transparent, non-interfering, automatic digital data exchange between appropriately equipped telephone terminals having cooperative digital signal processing and visual display equipment, using s... | 07/30/1991 |
| 4425661 | Data under voice communications system A communications system capable of simultaneously transmitting voice and data information. The spectral energy of the data signal is smeared by spreading it in a spectrum with energy packed in the lower frequency range under the conventional voice signal ... | 01/10/1984 |
