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Method and apparatus for seamless crypto rekey system
Equipment (10, 20) for facilitating point-to-point cryptographic data communication systems is disclosed. The seamless rekey cryptosystem permits changing of the...
Dual mode radio subscriber unit having a diversity receiver apparatus
and method therefor
A dual mode cellular radiotelephone subscriber unit (802) comprises a diversity receiver (812) and a controller (814). The diversity receiver (812) receives...
Wireless powered communication device using power signal sampling and
A circuit (34) for data recovery in a wireless powered communication device (10) obviates the need for the costly high power consumption filters of prior art...
Method and apparatus for providing transmit diversity in a wireless
The wireless communication system transmits signals using radios (205). The radios (205) receive a signal which is formatted for transmission (602). The...
Method and apparatus for adaptive rate communication system
A system is disclosed for an adaptive rate voice system to provide improvements in coded operation over changing communication channel (50) conditions. This...
Method and apparatus for power control in a communication system
Power control in a spread-spectrum communication system takes place by receiving a signal from a remote unit (713) at both a first (701) and a second (707) base...
Method, device, wireless transceiver and computer for providing
collision detection in wireless carrier sense...
A method (600), device, wireless transceiver, computer and personal digital assistant (300, 400) provide collision presence detection in wireless ...
Asynchronous transfer mode radio communications system with handoff and
method of operation
A radio communications system (10) having a mobile station (30) and at least two base stations (13, 14). ATM radio channels (31, 32) are provided between the...
Apparatus and method for using multiple spreading codes for data
transmission in a satellite communication system
Signal routing from origination nodes (210) to destination nodes (250) in a spread spectrum communication system (100) is provided using spread spectrum routing...
Magnetic random access memory and fabricating method thereof
An improved and novel MRAM device with magnetic memory elements and circuitry for controlling magnetic memory elements is provided. The circuitry, for example,...
Dual range power supply and adapter for use with same
A dual range power supply 200 is operable with either an AC line input, or a DC input. To facilitate use with an AC input the power supply is provided with a...
Display assembly having LCD and seal captured between interlocking lens
cover and lightpipe
A display module (100) includes a light pipe (140), a liquid crystal display (LCD) module (130), a lens cover (110), and a gasket (120), which are mated together...
Graphical user interface for an electronic device and method therefor
A communication device (50) includes a display (68) for presenting information to the user. When selecting between different options/features (402-416) the...
High efficiency power amplifier using HITFET driver circuit
A high efficiency power amplifier includes an integrated circuit with a heterojunction interband tunneling field effect transistor (HITFET) amplifier coupled to...
Power combiner with harmonic selectivity
A power amplifier (517) for amplifying an operating signal includes an amplifier (538), an amplifier (540), and a power combiner (518) with harmonic selectivity....
Frequency prescaler method and apparatus responsive to low input drive
A low input prescaler (800) that is responsive to input signals having low amplitude alternating current (AC) components includes a switched tunable prescaler...
Circuit compensating nonlinearities
In a circuit (200), a differential pair (217/227) of transistors (210 and 220) receives a differential input signal (X.sub.1 -X.sub.2) from input terminals (211...
Battery and charging system using switchable coding devices
A battery and charging system including a charger (200) that provides a current and a battery (107) having at least one cell (108) that can be charged by the...
Semiconductor laser package including a lead frame and plastic resin
A semiconductor laser package including a laser chip mounted to a leadframe, and a plastic resin housing for encapsulating the laser chip. The laser chip...
Monolithic RF mixed signal IC with power amplification
A monolithic integrated circuit die (10) is fabricated to include unilateral FETs (113, 114, 115), RF passive devices such as a double polysilicon capacitor...
Writing implement having an integrated optical reader
A writing implement (10) has an optical reader (20) integrated therewith. The optical reader (20) can include a bar code reader, an optical text reader, or an...
Bar code display apparatus
A bar code display apparatus includes a time-varying nonpredictable code generator (12) and a display device (14) responsive to the time-varying nonpredictable...
Polynomial calculator device, and method therefor
A polynomial calculator device is applied to calibrate a sensing device. Preferably the sensing device (100) includes a sensing element (102) with an output...
Apparatus for reading an electronic network navigation device and a
peripheral for use therewith
An apparatus for navigating an electronic network (20) comprises a housing (240) which houses a data reader, a pointing device (236), and a transmitter. The data...
Heat sink and method for removing heat from a plurality of components
The heat sink has an interior and has a first exterior surface and a second exterior surface, and includes a first heat removal region disposed in the interior....
Micro-contact printing stamp
A micro-contact printing stamp (100) includes a flexible layer (104) made from an elastomer and having a stamping surface (105). Flexible layer (104) is attached...
Method for establishing a wireless communications link in a reduced time
A mobile station (100) maintains a preferred bandmap (106) and a fixed bandmap (104). Upon powering up the mobile station, the mobile station begins scanning...
Method and system of tracking dynamic communication parameters during a
In a dynamic communication system (90) wherein communication parameters vary appreciably between transmissions, mobile subscriber units (200) are susceptible to...
Method and apparatus for adjusting inbound transmission reliability in a
two-way messaging system
A fixed portion (102) of a radio messaging system schedules (602) an inbound message to be transmitted at a first scheduled time on a channel from a portable...
Method for forming a line-on-line multi-level metal interconnect
structure for use in integrated circuits
A method of manufacturing a semiconductor component with a multi-level interconnect system includes providing a substrate (11), fabricating a device (12) in the...
Method of fabricating submicron FETs with low temperature group III-V
A method of fabricating submicron HFETs includes forming a buffered substrate structure with a supporting substrate of GaAs, a portion of low temperature AlGaAs...
Tooling die insert and rapid method for fabricating same
A rapid method for fabricating a tooling die insert (71) is disclosed. A set of master parts (31, 32) in the shape of the insert is formed using ...
Syndrome-based channel quality or message structure determiner
A syndrome-based channel quality or message structure determiner (160) uses syndrome vectors to estimate the quality of a received signal in a variable message...
Optical submodule and method for making
An optical module that includes a multiple number of VCSELs, or VCSELs and conventional edge emitting lasers, is proposed to be incorporated into a DVD pickup to...
Magnetoresistive random access memory device and method of manufacture
A Magnetoresistive Random Access Memory (MRAM) device (10) and a method for manufacturing the MRAM device (10). The MRAM device (10) has a plurality of pairs of...
Method and system for performing an L.sub.2 norm operation
A method and system for an L.sub.2 norm operation are provided. A sequence of input signals is converted to a sequence of log signals. The sequence of log...
Semiconductor component having leadframe with offset ground plane
A semiconductor component includes a leadframe (11, 40) having leads (12, 41) and a ground plane (13, 42) wherein the ground plane (13, 42) has an opening (15,...
Bio-molecule analyzer with detector array and filter device
A bio-molecule analyzer including a plurality of test sites on a transparent substrate, each test site having probe molecules attached thereto. An array of...
Radio frequency switch assembly
A radio frequency switch assembly (120) is mountable between an antenna port (110) and a detachable antenna (130) of a radio communication device assembly (100)...
Vibrating apparatus and method therefor
A vibrating apparatus (200) comprises a vibrating element (202), electromagnetic coils (204, 206), driver circuits (210, 212), and a controller (208) coupled to...
Selective loading for sideband noise ratio reduction of a voltage
A voltage controlled oscillator (1) comprising a voltage controllable variable resonant circuit (2) having a control input (Vctrl), a positive feedback input (6)...
Amplifier with input referred common-mode adjustment
A circuit and method control the common-mode potential at an output (17, 18) of a fully differential amplifier (32) by feeding forward a common-mode correction...
Method and apparatus for reducing distortion in a high efficiency power
A method and apparatus for efficient power amplification of a wideband signal with a correspondingly wide modulation bandwidth includes an envelope detector...
Lateral bipolar transistor operating with independent base and gate
A laterally formed bipolar transistor receives independent base biasing at a base terminal and gate biasing at a gate terminal for providing high forward current...
A control circuit for controlling a current switch to provide current to a load circuit, includes a hysteresis trigger circuit arranged to selectively switch on...
Field emission display with temperature sensing element and method for
the operation thereof
A field emission display (100) includes a cathode plate (104) having a plurality of electron emitters (112) and ballast resistors (118), an anode plate (120)...
Optical semiconductor component and method of fabrication
An optical semiconductor component (10) includes a substrate (11) having a surface (12), a photodetector (13) supported by the substrate (11), and a seismic mass...
Process for forming a semiconductor device
A process has been developed for a post-chemical mechanical polishing cleaning/passivting step to remove slurry particles (52) and form a passivating film (64)...
Binding assay methods
In accordance with a first aspect, a binding assay comprises a machine-readable storage medium which supports a molecular receptor (22). In accordance with a...
Single crystal ingot and method for growing the same
A single crystal ingot (10) is grown by first inserting a single crystal seed (14) into a melt (11) and pulling the seed (14) at a high pulling rate to grow a...