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Battery for a portable radio
Channel selection for radio communication supportable with repeaters
A radio (1) for radio communication supportable with repeaters. The radio (1) has a transceiver (2) for receiving information on either a repeater channel or a...
Method and apparatus for a radio remote repeater in a digital cellular
radio communication system
A digital cellular radio communication system having a remote repeater is provided. The communication system includes a central communication site which:...
Hybrid constellation satellite comunication systems and methods with
efficient signaling and control
A hybrid constellation satellite communication system (100) is established using two or more satellite types (110, 120) in different constellations. The two or...
System power saving means and method
An apparatus (12) and method (80, 120) is described for reducing power consumption in a system (10) having subsystems (34). A controller (40, 40', 40") detects...
An olfactory card (10) comprises a PC card housing (12) and a PC card connector (14) supported by the PC card housing (12). The olfactory card (10) includes a...
Method, system, and device for accumulating data and maintaining the
A method of accumulating and maintaining the accumulated data comprises steps of maintaining an intermediate count in a first memory device (12), reading a...
Method and apparatus for interleave/de-interleave addressing in data
Interleaving/de-interleaving of data is achieved by storing and subsequently retrieving portions of the data from circular buffers (60,70). The circular buffers...
System, device, and method for sharing contention mini-slots among
multiple priority classes
A system, device, and method for sharing contention mini-slots among multiple priority classes determines an aggregate feedback state for each of the priority...
Recording information in a phase change optical medium with a vertical
cavity surface emitting laser
An apparatus for changing the phase of an optical storage medium changeable between a reflective phase and a dispersive phase. The apparatus including a...
Non-volatile memory cell and method of programming
The programming time of a non-volatile memory cell (13) is reduced by forming the non-volatile memory cell (13) in a well region (12). The presence of the well...
Circuit and method of measuring the negative threshold voltage of a
non-volatile memory cell
A portable data carrier (10) embodies an integrated circuit (12) with an EEPROM (24). The EEPROM has a number of rows of memory cells (32, 38) each having...
Static random access memory cell having graded channel metal oxide
semiconductor transistors and method of...
An SRAM memory cell (40) uses GCMOS transistors (42, 44, 56, and 58) for improving discharge of complementary bit lines (60 and 62). The GCMOS transistors (42,...
Variable conducting element and method of programming
A variable conducting element (10) and method for programming a constant current or constant resistance provided at output terminals (24 and 26) of a...
Apparatus using a circuit board having a frangible portion apparatus
A circuit board (10) has a frangible portion (12) for carrying information relating to the circuitry carried on the circuit board. The information is carried in...
Method and apparatus for providing duplicate messages in an
acknowledge-back communication system
A communication system (100) for providing information includes transceivers (110) for receiving the information and acknowledging reception of the information...
Apparatus for efficient current amplification
Two emitter follower transistors (260, 250), in which each transistor has an emitter coupled to one of the collectors of a differential pair structure (230,...
Apparatus and method for amplifying a signal
The apparatus includes an amplifier (204) having an input and an output, the amplifier output coupled to an input of a Doherty amplifier (208). The Doherty...
Method and apparatus for reducing distortion in a power amplifier
A method and apparatus for efficient power amplification with low distortion includes an envelope detector (220), a difference amplifier (130), an envelope...
Method and apparatus for synchronizing a plurality of output clock
signals generated from a clock input signal
A clock circuit for generating alternate clock phases (P.sub.1, P.sub.2) whose trailing edges define sampling points of an analog-to-digital converter (106)....
Low power schmitt trigger
A Schmitt trigger (30) operates at low power and low frequency and can be implemented in a small amount of surface area on an integrated circuit. Specifically,...
Circuit and method of controlling mixer linearity
An integrated receiver circuit (10) has a first amplifier (12) coupled for receiving a radio frequency (RFIN) input signal. A mixer (16) has an RF input coupled...
Organic electroluminescent device with emission from hole transporting
An organic EL device comprises a cathode, an electron transporting layer (ETL), a hole transporting layer (HTL) and an anode which are laminated in sequence,...
Semiconductor device having an insulating layer and method for making
An electrical insulation for a heatsink (14) of a semiconductor device (10) is provided by an insulating layer (16) formed on a desired portion or portions of...
Leadframe assembly for conducting thermal energy from a semiconductor
die disposed in a package
A semiconductor die (32) is disposed on a heat sink (22) in an electronic package (10). During assembly, a leadframe (20) is connected to the heat sink (22) by...
Trench transistor structure comprising at least two vertical transistors
A method for forming a trench transistor structure begins by forming a buried layers (12 and 16) and a doped well (22) in a substrate (10) via epitaxial growth...
Optically sensitive device and method
A process combines a high performance silicon pin diode (60) and other semiconductor devices such as transistors, resistors, and capacitors. The pin diode (60)...
Method of reflowing solder bumps after probe test
An integrated circuit die is tested by inserting test probe needles into flat solder pads before reflow. The testing is performed at different temperatures to...
Method for forming a semiconductor device having a nitrided oxide
In one embodiment a non-volatile memory device having improved reliability is formed by oxidizing a first portion of a semiconductor substrate (12) to form a...
Silicon carbide transistor and method
A silicon carbide MESFET (10) is formed to have a source (21) and a drain (22) that are self-aligned to a gate (16) of the MESFET (10). The gate (16) is formed...
Integrated circuit having a dummy structure and method of making
A pattern of dummy structures (20) is added to the layout pattern of an integrated circuit (10) to equilibrate the polishing rate across the surface of a...
Electronic device having multiple user interface configurations
A portable electronic device (100) includes a housing cover (110) having a faceplate location (145), an electronic circuit (115), and a first faceplate (140)....
Method of making an enhanced quality factor resonator
A high quality factor resonator (15) including a substrate (110) and a resonator layer (150). The resonator layer includes a first electrode (157). The resonator...
Front panel for a wireless communications device
Battery housing for a cellular telephone
Method and apparatus for reducing artifacts that result from time
compressing and decompressing speech
A processing system time compresses a voice message before transmission, and processing system time expands the message after reception. To process the message...
Audio interface for document based information resource navigation and
An audio interface (110) provides access to a hypertext document and enables link navigation (310). The hypertext document has textual information, including one...
Method and apparatus for covariance matrix estimation in a weighted
least-squares location solution
Signals exchanged between a fixed infrastructure (110-116) and a mobile unit (160) give rise to M channel quality metrics. The channel quality metrics are...
Method of spawning a communication service
A method of spawning a communication service comprises the steps of detecting (201) a failed call attempt initiated by a first communication unit (101) and...
Method for calculating an L1 norm and parallel computer processor
A parallel computer processor that performs L1 norm calculations includes a plurality of processing elements and a data pipeline which couples the processing...
Electronic component for aligning a light transmitting structure
An electronic component (10) for aligning a light transmitting structure (19) such as an optical fiber or a waveguide, includes a semiconductor substrate (11)...
Method and apparatus for recovering group messages in a time diversity
radio communication system
In a time diversity system (100) including a radio receiving device (110), a temporary address, a group message associated with the temporary address, and an...
Long wavelength VCSEL
A VCSEL for emitting long wavelength light including a first mirror stack with mirror pairs in a GaAs/AlGaAs material system lattice matched to a GaAs active...
Asymmetrical digital subscriber line (ADSL) block encoder circuit and
method of operation
A method and apparatus for performing block encoding in an asymmetrical digital subscriber line (ADSL) system uses a pipelined structure. The parity check...
Method and apparatus for providing synchronization during transcoder
switching in a communication system
A mobile station (115) and its supporting infrastructure equipment negotiate service configurations based on the service option capabilities of both the mobile...
Utility meter readings on a reverse channel of a two-way paging system
A meter reading device (22) for wirelessly transmitting meter readings from a plurality of meters (30) includes a receiver (44) for receiving a synchronization...
Printed wiring card end bracket for ruggedizing printed wiring cards
An end bracket for ruggedization of Commercial Off-The-Shelf (COTS) printed wiring cards is described. End bracket (400) has flanges (420,430) with holes for...
Method for positioning a vibrating alert adjacent to a selected alert in
selective call device
A selective call device (100) has a plurality of first alerts and a second alert and includes a decoder/controller (106) generating a plurality of icons...
Time diversity radio system using transparent address vector and message
A method of decoding a repeat message made up of repeat message fragments at a selective call receiver (122) using a synchronous wireless protocol having time...
Geographic-temporal significant messaging
A messaging device for receiving a plurality of messages that have a relevancy status includes a selective call receiver (22) for receiving the plurality of...