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| Number | Title | Issue Date |
| 6807648 | Variable-strength error correction in ad-hoc networks Systems and methods for encoding packetized data include applying different codings to the header and the payload. The header of a data packet is encoded for error correction separately from the payload of the data packet. The use of separate error correction techni... | 10/19/2004 |
| 6745242 | Connectivity service-level guarantee monitoring and claim validation systems and methods A system monitors performance in a network that includes several network resources. The system obtains a list of targets in the network. The targets include selected ones of the resources. The system sends a request to the targets, receives responses from the target... | 06/01/2004 |
| 6614880 | Automated telephone line test apparatus with intelligent diagnostic function A portable, automated telephone line test device includes a test module which applies test signals to a telephone line to be tested and detects electrical characteristics of the telephone line, and a user interface module. The user interface module includ... | 09/02/2003 |
| 5960399 | Client/server speech processor/recognizer A real-time or streaming speech processing system and method is disclosed with capabilities distributed between and client and a server where the server may be reached via the Internet. The speech processing entails digitizing and converting the utterance... | 09/28/1999 |
| 5873037 | Multiple mode personal wireless communication system A multiple mode, personal, wireless communications system is disclosed which exists within a radiotelephone network serving general customers and provides unique additional services to a select group of customers equipped with special handsets, without im... | 02/16/1999 |
| 5862128 | Merged buffer signal switch A signal switch with merged buffer architecture has multiple input ports connected to a circuit switch matrix which partially sorts the input signals based on output port destination. The circuit switch matrix is connected to multiple merged buffers, each... | 01/19/1999 |
| 5848403 | System and method for genetic algorithm scheduling systems An improved Genetic Algorithm scheduling system includes system for encoding and testing hard constraint information. Each resource and task includes an associated capability and constraint indicating component. A comparison of the capability and constrai... | 12/08/1998 |
| 5835586 | Armrest telephone assembly An armrest telephone assembly comprises an armrest unit and a telephone handset. The armrest unit includes an upper side and a lower side, and the armrest unit has a release mechanism mounted therein. The telephone handset includes a latching mechanism fo... | 11/10/1998 |
| 5826864 | Active vibration mount The active vibration mount disclosed herein employs a multiplicity of layers of an electro-strictive material such as an electro-strictive polyurethane film interleaved with electrodes. A majority of the layers are employed as an output transducer while a... | 10/27/1998 |
| 5822410 | Churn amelioration system and method therefor A churn amelioration system (20) supports data feeds from mobile switching centers (32), billing systems (34), and customer service systems (36). The system (20) maintains an extensive database (42) of customer/unit data and of rules which indicate how to... | 10/13/1998 |
| 5809843 | Active cancellation of noise at gear mesh frequencies for a gear assembly under load A method and apparatus to cancel gear vibration and noise by imposing a canceling drive torque or force on a driven gear set. Sensors receive information and produce an error signal representative of the vibration and/or noise generated at meshing gears. ... | 09/22/1998 |
| 5796795 | Data transferring circuit which aligns clock and data A network (10) includes a broadband customer service module (B-CSM) (20). The B-CSM (20) includes a plurality of feeder interface cards (FICs) (36) and optical line cards (OLCS) (38) which are coupled together through a midplane assembly (34) so that each... | 08/18/1998 |
| 5794141 | Multi-mode communication network with handset-assisted cordless base station activation A multi-mode communication network (12) uses a two phase process to activate a cordless base station (22) using the assistance of a multi-mode handset (18). A customer activation system (30,32) collects cellular and cordless activation data (56,58). The h... | 08/11/1998 |
| 5793976 | Method and apparatus for performance monitoring in electronic communications networks Management packets are defined that are modified in the payload by each node along a virtual connection and are used to measure both end-to-end QoS and specific individual intermediate node performance parameters. Management packets are implemented by def... | 08/11/1998 |
| 5787354 | Method and apparatus for locating a radiotelephone within a cellular system A cellular telecommunication system (CTS) is provided that supports the operation of a radiotelephone (RT) in cellular and cordless modes. The CTS includes operating features that are dependent upon the intrasystem location of the RT. The CTS includes a m... | 07/28/1998 |
| 5787347 | Method and apparatus for selecting a cellular system for communication with a cellular telephone in a roaming area Methods and apparatus for selecting a system for communication with a personal station, such as a cellular telephone or a PCS station, in a roaming area. The personal station transmits a system access message to a default system. When the default system t... | 07/28/1998 |
| 5787235 | Fuzzy logic-based evidence fusion tool for network analysis A fuzzy-logic-based evidence fusion tool for predicting function levels of a switch in a telecommunications network. Confidence factors related to the geographical location and to the physical characteristics of the switch are acquired and mapped into fuz... | 07/28/1998 |
| 5774805 | Multi-mode communication network with handset-selected channel assignments A multi-mode communication network (12) accommodates piloted cellular operation and pilotless cordless operation using a multi-mode handset (18). A common pool of channels (28) serves cellular and cordless operations. At least some channels from a cordles... | 06/30/1998 |
| 5774463 | Switching matrix with contention arbitration A switching matrix routes each received input to a unique output port. Each input specifies an output port as a destination. For each output port, a set of inputs contending for the output port is determined. A control for correctly routing selects an inp... | 06/30/1998 |
| 5764745 | Apparatus and method for local number portability using nongeographic subscriber numbers An apparatus and method for telecommunications network local number portability supports service provider portability, location portability, and service portability. A subscriber is assigned a nongeographic subscriber number that is uniquely mapped to a l... | 06/09/1998 |
| 5731699 | Apparatus and method for simultaneous measuring of narrow and wideband RF transmission statistics Apparatus and method for measuring the radio signal (RF) transmission statistics of a communication channel. The apparatus is arranged to receive and process a wide bandwidth signal from which signal power is measured and from which fading or other such t... | 03/24/1998 |
| 5721833 | Push-out of low priority signals from switch buffers An apparatus and method for push-out of signals from switch buffers ensures that a high percentage of the highest priority input signals are accepted by the switch by using the switch resources to remove lower priority input signals from the switch buffer... | 02/24/1998 |
| 5703934 | Cordless telephone with integral caller ID display A radiotelephone (RT) operates in either a cellular telephone mode or a cordless telephone mode within a cellular telecommunications system. The RT operates in the cordless mode if it is within the operating range of a cordless base station. The cordless ... | 12/30/1997 |
| 5673844 | Gas pressure adjustable diebonding apparatus and method A device placement or diebonding head for a diebonding apparatus including a chamber with openings in its end walls, a rod-and-piston combination extending through the chamber with the rod ends protruding through the openings, a gas inlet port into the ch... | 10/07/1997 |
| 5668861 | Telecommunications system with notification hold Apparatus and a method of implementing a notification and hold service in a telephone network is disclosed. A calling telecommunications device is placed on hold by the called telecommunications device, and signals an auxiliary computer system through a n... | 09/16/1997 |
| 5661424 | Frequency hopping synthesizer using dual gate amplifiers A frequency hopping synthesizer is constructed from two FET-based multiplier circuits each responsive to a carrier input signal and a modulation signal to produce respective output signals which are in-phase combined to provide a frequency-shifted signal.... | 08/26/1997 |
| 5648958 | System and method for controlling access to a shared channel for cell transmission in shared media networks A system and method for controlling access to a shared channel for cell transmission in a shared medium network, wherein the shared medium distribution portion of said network extends from a node to a plurality of terminals within a community, having a tr... | 07/15/1997 |
| 5627668 | Subcarrier-multiplexed optical transmission systems using optical channel selection An optical amplifier is used as a frequency-selective high-gain element in a subcarrier-multiplexed fiber optic transmission system. A high-speed diode laser optical transmitter is modulated by a plurality of independent information channels that are carr... | 05/06/1997 |
| 5615035 | Photonic dual bus for wide-area CATV broadcast and data transport Apparatus is disclosed which is advantageously used in local area, metropolitan-area, and wide-area networks using a dual bus architecture, and more particularly to a dual bus network design having significantly increased distance before termination or re... | 03/25/1997 |
| 5612806 | Acknowledgement using subcarrier multiplexed tones Subcarrier multiplexed acknowledgment tones are used for contention recovery in multiple-access WDM networks with basedband data packets and subcarrier multiplexed control headers. Upon receiving a data message from another node, the receiving node sends ... | 03/18/1997 |
| 5277747 | Extraction of spatially varying dielectric function from ellipsometric data A method of and apparatus for extracting dielectric constants from ellipsometric data taken during the growth of a semiconductor thin film and using the extracted dielectric constants to control the composition of the growing film by adjusting the growth ... | 01/11/1994 |
| 3946851 | Electromagnetic assembly for actuating a stylus in a wire printer An electromagnetic circuit for controlling the travel of a stylus by attaching the stylus to a movable core. The movable core cooperates with a drive coil to form a magnetic circuit with annular portions extending into the drive coil from both ends thereo... | 03/30/1976 |
