Abstract: An improved temperature compensated quartz oscillator, which includes a package for mounting compensating circuitry over a cavity instead of on a planar layer, reduces the chip failure rate by preventing undesired contact of the compensation circuitry with the material forming the layer upon which the circuitry is mounted.

Abstract: A method (300), device (408), and system (400) provide part-of-speech disambiguation for words based on hybrid neural-network and stochastic processing. The method disambiguates the part-of-speech tags of text tokens by obtaining a set of probabilistically annotated tags for each text token, determining a locally predicted tag for each text token based on the local context of the text token, determining an alternative tag for each text token based on the expanded context of the text token, and choosing between the locally predicted tag and the alternative tag when the locally predicted tag and the alternative tag are different.

Abstract: The method (400, 500) and device (200) for reworkable direct chip attachment include a thermal-mechanical and mechanical stable solder joint for arranging connection pads on a top surface of the circuit board to facilitate connection for electronic elements, and affixing a reinforcement having apertures to accommodate solder joints to the top surface of the circuit board to facilitate solder attachment of the connection pads to the electronic elements wherein the reinforcement constrains deformation of the circuit board to provide reliable solder joints and facilitates attachment and removal of electronic elements from the circuit board.

Abstract: The present invention provides a method/protocol (400, 800) and device (600; 700) for transmitting a synchronous stream of information, in a wireless, centrally controlled communication system. The method includes the steps of parsing the synchronous stream of information into a plurality of predetermined fixed sized blocks and transmitting/retransmitting each fixed size block in a predetermined window of time until one of: reception of each fixed size block is positively acknowledged and each corresponding predetermined window of time has elapsed.

Abstract: A manufacturing method (700) and device ((100, 200, 300, 400, 500, 600) provide a fixturing frame with an optics array alignment for a wireless local area network optics fixture array that has a plurality of circumferential cavities for collecting and detecting optical signals to achieve a quasi-diffuse collection/reception pattern.

Abstract: The invention provides a device, method (400,500,600), and system (100) to improve compression efficiency when coding audio for bitrate scalability. It includes at least one of an encoder and a decoder and is applicable when utilizing perceptual coding for an upper bitrate. The encoder includes a hybrid psychoacoustic modeling unit, coupled to receive lowband audio and diffband audio, for determining psychoacoustic data, and a quantizer control and zero-flagging unit, coupled to receive psychoacoustic data and diffband audio, for determining explicit quantizer stepsize parameters and at least one of: 1) implicit quantizer stepsize parameters and 2) implicit zero-flags.

Abstract: A method, access point device and a plurality of peripheral devices provide for controlling a space diversity switch in a time division duplex system. The method includes: inputting data to a peripheral; generating a CRC.sub.1 in a peripheral; transmitting the data and the CRC.sub.1 ; receiving, by an access point device, the data with the CRC.sub.1 ; extracting CRC.sub.1 and generating CRC.sub.2 from received data; determining whether CRC.sub.1 and CRC.sub.2 are equal and where CRC.sub.1 and CRC.sub.2 are equal, failing to generate a repeat request; where CRC.sub.1 and CRC.sub.2 are unequal, generating a repeat request; determining whether a number of requests=N; where the number of requests.noteq.N, incrementing a counter and returning to receiving the data with the CRC.sub.1 ; and where the number of requests=N, resetting the counter, changing an antenna state and returning to receiving, by an access point device, the data with the CRC.sub.1.

Abstract: A device (100) and method (200, 300) authenticate and secure control event data for a vehicle, wherein the device includes: A) a microcontroller (104), coupled to receive control event information, for attaching a first time stamp and vehicle identification number VIN to the control event information to provide first information and sending the first information to memory (106) in time overlap fashion; B) the memory (106), coupled to the microcontroller (104) and a microprocessor (108), for storing first information and second information in time overlap fashion; and C) the microprocessor (108), coupled to the memory (106) and a plurality of transducers (110), for determining whether received impact data varies from previous impact data, and where received impact data varies, adding a second time stamp and VIN to the received impact data to form second information.

Abstract: A network protocol method (300), access point device (600) and peripheral devices (700, 800) provide an efficient centrally coordinated peer-to-peer wireless communications network wherein the access point device: (1) broadcasts a block assignment that specifies a wireless source peripheral device and a wireless destination peripheral device; (2) receives, from the wireless destination peripheral device, sequence information; (3) determines whether the sequence information represents one of: a negative acknowledgment and a positive acknowledgment with a sequence number; (4) forwards an acknowledgment to the wireless source peripheral based on the sequence information, and repeats steps (1)-(4) until N blocks of data, N a predetermined integer, have been transferred from the wireless source peripheral to the wireless destination peripheral.

Abstract: An encryption apparatus and method generate a unique keystream output value for every frame of bearer traffic to provide encryption protection in a communications system. The keystream output value is generated from the following equations:x(n+1).sub.low ={x(n).sub.low *R1.sub.low +R2.sub.low } mod R3.sub.lowx(n+1).sub.high ={x(n).sub.high *R2.sub.high +R1.sub.high } mod R3.sub.highwhere R1, R2, and R3 are linear feedback shift registers and x(n) and x(n+1) represent previous and current output values.

Abstract: A method (300), system (400), base station (500), head-end unit (600), and subscriber unit (700) provide for efficient resource management in a communication system or group of communication systems supporting a plurality of communication units, where different communication units may have varying resource size requirements. The method includes the steps of: determining a resource size requirement of a communication unit of the plurality of communication units, determining a hierarchical level within the hierarchy that the communication unit is to be assigned to based on the resource size requirement of the communication unit, and assigning the communication unit to an available resource slot in the hierarchical level in accordance with a predetermined hierarchical management scheme that maximizes a total number of remaining available slots in the hierarchy.

Abstract: A method (300), system (400), base station (500), head-end unit (600), and subscriber unit (700) provide for efficient resource hopping in a communication system or group of communication systems supporting a plurality of communication units, where different communication units may have varying resource size requirements. The method includes the steps of: assigning a communication unit of the plurality of communication units to a resource slot within a level of a plurality of levels of a hierarchical representation of a resource region, assigning an available resource hopping pattern and associated initial resource location within the resource slot to the communication unit, and hopping, by the communication unit in accordance with a predetermined hierarchical resource hopping scheme.

Abstract: The present invention provides a method, device, base station and subscriber unit for combining a plurality of antenna output signals to provide a combined data signal in a communication system where the antennas receive at least one user signal and where the at least one user signal contains pilot symbols and data symbols. The method includes the steps of: forming, in at least one communications receiver, a plurality of weighted antenna output signals, one for each antenna of a plurality of antennas, based on at least two covariance matrices and at least two steering vectors determined from the pilot symbols; and combining the weighted antenna output signals from the plurality of antennas to form the combined data signal.

Abstract: The present invention provides a low cost, efficient vertical cavity surface emitting laser package (300) and manufacturing method, the package having a head assembly having at least three leads, a vertical cavity surface emitting laser die bonded to a top surface of the head assembly, for generating a beam of light, and a photodiode, die bonded to the top surface of the head assembly proximate to the vertical cavity surface emitting laser for receiving at least a portion of the beam of light, and generating feedback for adjusting an electrical input current to the vertical cavity surface emitting laser based on a received optical power of the portion of the beam of light received. The vertical cavity surface emitting laser and the photodiode are injection molded in a predetermined shape with a recessed area for placement of a partially reflective holographic optical element/reflector.

Abstract: The present invention provides a linearization system (100) and method (700, 800) for generating a predistorted drive signal for a nonlinear transmission path. The linearization includes: A) an analog feedback system (39), coupled to a computation unit, for determining, during a training mode, a complex error signal that linearizes the nonlinear transmission path and wherein, in an operation mode, the analog feedback system is disabled; and B) a computation unit (1), coupled to the analog feedback system and coupled to receive a complex input signal and the complex error signal, for determining, during the training mode, complex predistortion gain coefficients and, during the operation mode, generating the predistorted drive signal for the nonlinear transmission path, wherein the analog feedback system and computation unit are interconnected by interface circuitry.

Abstract: A method (500), client device (700), server (800) and computer readable medium (900) provide a scheme for negotiating compression of universal resource identifiers. The method includes: (1) sending, by a client, a request to a server wherein the request includes an uncompressed universal resource identifier URI and a list of compression techniques of the client; (2) determining, by the server, an intersection of the list of compression techniques of the client and a list of compression techniques of the server and providing a response to the client that includes the intersection and information identified by the URI; (3) subsequently requesting, by the client, information wherein one of: (4) decompressing, by the server, the compressed URI using the compression technique indicated in the subsequent request; and (5) responding, by the server, wherein the response includes information requested as identified by the compressed URI.

Abstract: The present invention teaches a method (400), device and system (300) utilizing at least one of: mapping a sequence of phones to a sequence of articulatory features and utilizing prominence and boundary information, in addition to a predetermined set of rules for type, phonetic context, syntactic and prosodic context for phones to provide provide a system that generates segment durations efficiently with a small training set.

Abstract: A method (600), device, wireless transceiver, computer and personal digital assistant (300, 400) provide collision presence detection in wireless intensity-modulated binary-coded data transceivers which is compatible with the collision detection employed in IEEE standard 10BASE-T Ethernet. A measurement of the degree of correlation which exists between the signal transmitted and the signal received provides a basis for efficient collision detection in CSMA systems.

Abstract: A method (400, 900, 1000, 1100), device (1205, 1306) and system (1207, 1308) provide memory-efficient encoding of the random-access lexicon for a text-to-speech synthesis system. The method generates word pronunciations based on efficient retrieval of stored pronunciation information and disambiguation information for an input word, by dividing the input word into a stem and a maximal suffix having a maximal suffix code and then generating at least one word pronunciation based on the stem and the maximal suffix.

Abstract: A method (2000), device (2200) and article of manufacture (2300) provide, in response to orthographic information, efficient generation of a phonetic representation. The method provides for, in response to orthographic information, efficient generation of a phonetic representation, using the steps of: inputting an orthography of a word and a predetermined set of input letter features; utilizing a neural network that has been trained using automatic letter phone alignment and predetermined letter features to provide a neural network hypothesis of a word pronunciation.