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Patent # Description
US-6,198,907 Satellite communications systems using satellites in a zero-drift constellation
A zero-drift constellation (200 FIG. 2) is used to simplify the tracking and hand-off requirements of terrestrial-based user terminals (110 FIG. 1). Each...
US-6,198,782 Estimation of frequency offsets in OFDM communication systems
Apparatus for estimating carrier and clock frequency offsets in OFDM systems employs a maximun likelihood estimator operation on the demodulated signals. The...
US-6,198,779 Method and apparatus for adaptively classifying a multi-level signal
A radio receiver circuit (200) is used for receiving a multi-level signal (201) that includes a plurality of symbols, wherein each level is representative of a...
US-6,198,776 Device and method for precoding data signals for PCM transmission
A device and method for preceding data signals for pulse code modulation (PCM) transmission includes a transmitter for transmitting a sequence of analog levels...
US-6,198,748 Data transmission system and method
A data transmission system identifies the length of communicated messages and adjusts interleave depth in response to the length of the communicated message. The...
US-6,198,735 Method for retransmitting a data packet in a packet network
The present invention provides a method for retransmitting a data packet in a packet network. Compressed data packets are sent from a first network entity to a...
US-6,198,730 Systems and method for use in a dual mode satellite communications system
A communications network is capable of using time division multiple access (TDMA) techniques, code division multiple access (CDMA) techniques, or a combination...
US-6,198,444 Double pole limit switch having an actuator as a pole
A double pole limit switch (340) includes an insulator (410), a conductive spring element (420), and a conductive element (430). The conductive spring element is...
US-6,198,406 Method and apparatus for providing a predictable upper bound for a channel search time of a portable subscriber...
A portable subscriber unit (PSU) (222) operating in a plurality of messaging systems selects (605) a first messaging system to monitor for messages. The PSU then...
US-6,198,348 Differential circuit with reverse isolation
A differential circuit (200) provides for reverse isolation between input and output ports (202, 204). The differential circuit has amplification circuitry that...
US-6,198,314 Sample and hold circuit and method therefor
A sample and hold circuit (200) accepts an input (202). During a first half of the clock (204) (either an active high portion or an active low portion) the...
US-6,197,688 Interconnect structure in a semiconductor device and method of formation
In one embodiment, a conductive interconnect (38) is formed in a semiconductor device by depositing a dielectric layer (28) on a semiconductor substrate (10)....
US-6,195,536 Impedance matching for a dual band power amplifier
An exciter matching circuit (125), interstage matching circuit (134), and harmonic filter matching circuit (140) match impedances at the input to a two-stage...
US-6,195,342 Method for determining hand-off candidates in a neighbor set in a CDMA communication system
A CDMA communication system (400) includes a plurality of base stations (410, 420 and 430) transmitting at least a corresponding plurality of pilot signals. A...
US-6,195,052 Radio communication device
A radio communication device (10) has a controller (11), an antenna mount (12), a reference voltage source (13), a voltage bias supply (14), transceiver...
US-6,195,051 Microstrip antenna and method of forming same
A microstrip antenna (300) includes a substrate (302) having an inner ground plane layer (322) around which a radiator element is folded so as to form first and...
US-6,195,037 Method and apparatus for increased system capacity using antenna beamforming
In a satellite communications system (100), system capacity is improved using a satellite (110 and 120) that includes a main mission antenna (MMA) (310 FIG. 3),...
US-6,194,990 Printed circuit board with a multilayer integral thin-film metal resistor and method therefor
A thin-film metal resistor (44) suitable for a multilayer printed circuit board (12), and a method for its fabrication. The resistor (44) generally has a...
US-6,194,975 Dual band VCO with improved phase noise
A dual band VCO selects between the oscillator output frequencies by switching the resonant circuit elements in the active circuit. For each output frequency...
US-6,194,250 Low-profile microelectronic package
A microelectronic package (10) is formed by placing a lead frame (22) onto an adhesive polyimide tape (38). The lead frame (22) includes a plurality of metallic...
US-6,194,246 Process for fabricating electronic devices having a thermally conductive substrate
A process for fabricating an electronic module (30) and a packaged electronic device (56) having a thermally conductive substrate includes the step of thermally...
US-6,194,089 Organic electroluminescent device with improved reliability
An organic EL device includes a cathode, an organic electroluminescent layer and an anode, laminated in sequence. The organic layer is composed of a continuous...
US-6,192,449 Apparatus and method for optimizing performance of a cache memory in a data processing system
A most recently used bit (25) is used to determine if a data transfer should occur from a fill buffer (20) into a data memory (32) in a cache (15). If the data...
US-6,192,353 Multiresolutional classifier with training system and method
An improved method and system for training and classifying using a low complexity and high accuracy multiresolutional polynomial classifier (412) is presented. A...
US-6,192,256 Devices for transmitter path weights and methods therefor
A receiving communication device (101) receives a reference signal transmitted through at least one of the antennas (106, 110, 112) of an antenna array of a...
US-6,192,253 Wrist-carried radiotelephone
An improved wrist-carried radiotelephone includes a first housing including a microphone, a display and a radio transceiver. A second housing includes a latch, a...
US-6,192,247 Method for extending the cell radius between a mobile station and a base station
The present invention provides a method for extending the cell radius between a mobile station (101) and a base station (103). A propagation delay is determined...
US-6,192,245 Method for determining handover in a multicellular communications system
A method for determining a handover for a mobile station (1) in a multicellular communication system having a serving cell (3), a plurality of neighboring cells...
US-6,192,240 Advanced subscriber outage notification methods
Advanced subscriber outage notification methods (100) notify a user of a subscriber unit (30) that its call is going to be dropped. The subscriber unit (30), the...
US-6,192,226 Carrier squelch processing system and apparatus
Carrier squelch decisions are made by performing the steps of receiving an input signal (D), free of DC offset, having desired and undesired signal components,...
US-6,192,158 Wavelet image coder using trellis-coded quantization
A system (8) for digital processing of optical image data includes a wavelet decomposition unit (12) for decomposing an input image (10) into a plurality of...
US-6,192,089 Electronic circuit and method for automatic frequency control
An automatic frequency control circuit (84) and a method for automatic frequency control in a digital receiver includes a CORDIC vector rotation processor (88),...
US-6,192,040 Method and apparatus for producing channel estimate of a communication channel in a CDMA communication system
A method and apparatus in WCDMA communication system includes extracting pilot symbols (462-5) of (2-M) plurality of communication channels of (1-M) plurality of...
US-6,192,037 Method for changing communication in a communication system, and communication system therefor
The present invention provides a method for changing communication in a communication system (100). The communication system (100) includes a base station...
US-6,192,029 Method and apparatus for performing flow control in a wireless communications system
A data communications system includes a server router (102), such as an access controller gateway, operably coupled to at least one client router (104), such as...
US-6,191,973 MRAM CAM
An integrated circuit (IC) magnetic random access memory (MRAM) content addressable memory (CAM) system has a CAM cell which includes a first data bit, a second...
US-6,191,738 Method and apparatus for locating a remote unit within a communication system
Determining a timing offset for remote-unit (113) location is accomplished by comparing a known sequence (203) to the information (201) transmitted by the remote...
US-6,191,665 Coupling circuit to reduce intermodulation distortion in radiofrequency receivers
A coupling circuit (22) for a radiofrequency (RF) receiver (10) has an attenuator (38) and a resonator (40). Three resistors (42,44,46) of attenuator (38)...
US-6,190,737 Metalized elastomers
A method (10) for coating a substrate including at least an elastomer substrate portion with a conductive coating is described. The method includes steps of (i)...
US-6,189,133 Coupling noise reduction technique using reset timing
False transitions resulting from capacitive coupling between parallel interconnects driven by dynamic circuits are reduced by classifying interconnects based on...
US-6,189,125 Method communication system and phone for systematic encoding and computationally efficient decoding for...
The present invention provides a method (600), phone (209), and communication system (202) including a systematic encoder (204) adapted to receive input data...
US-6,189,061 Multi-master bus system performing atomic transactions and method of operating same
A multi-master bus system (10) comprises bus (12), a plurality of bus devices (14, 16, 18, 20, 22, 24), coupled to the bus, including masters (14, 16, 18), and...
US-6,189,035 Method for protecting a network from data packet overload
An internal network (16) is protected from being overloaded by an excessive number of data packets that originate from a source in an external network (10). In a...
US-6,188,979 Method and apparatus for estimating the fundamental frequency of a signal
A method and apparatus for improved pitch period (.tau.) estimation in a compression system is disclosed. The system uses original estimates of integer lag...
US-6,188,904 Method for improving communication coverage in multi-cell communication systems
The present invention provides a method for improving the communication coverage in a multi-cell communication system (100) which employs neighbor cell lists. A...
US-6,188,881 Belt clip and device using the same
The housing (12) for a portable device (10) has a cavity (40) which engages a boss (28) on a U-shaped clip (22) to prevent a relative rotation between the...
US-6,188,767 Method of providing group call services in a CDMA communications system
The present invention encompasses a base station and method of providing communication services to a plurality of communication units. The method includes the...
US-6,188,287 Method and apparatus for reducing phase noise in a voltage controlled oscillator circuit
A phase noise optimization circuit (208) minimizes phase noise for a voltage controlled oscillator (VCO) (202). Control circuitry (214) locates a minimum phase...
US-6,187,682 Inert plasma gas surface cleaning process performed insitu with physical vapor deposition (PVD) of a layer of...
A method for insitu performing a cleaning operation along with a physical sputtering operation begins by placing a wafer (26) into a chamber (12). A plasma (30)...
US-6,187,216 Method for etching a dielectric layer over a semiconductor substrate
A wet etch bath (61) holds a wet etchant (52) for etching a dielectric over a semiconductor substrate. The wet etch bath (61) has a tub (63) separated from a...
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