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Current interpolation in multi-phase local oscillator for use with
harmonic rejection mixer
A circuit provides a reduced harmonic content output signal OUTA and/or OUTB that is modulated according to an input signal 231. The circuit has an oscillator...
Current mode transmitter
A current-domain transmitter is configured to receive an input signal and provide a transmitted signal. The transmitter has a plurality of elements, operatively...
Method of slip compensation for integer frequency offset correction in a
wireless communication system
A method of correctly estimating the frequency offset when the CPE modem has already acquired and is tracking the OFDM burst boundaries in an OFDM-based,...
Efficient framing of overhead channel for ADSL modems
An efficient framing scheme is described for the transmission of frame overhead data in next generation ADSL modems. As a result of this new framing scheme, the...
Digital micromirror device with simplified drive electronics for use as
temporal light modulator
A digital micromirror device (DMD) modified for use as a temporal light modulator. The DMD is modified so that the mirrors of the DMD have a preferential tilt...
Magnet on frame oscillating device
An oscillating torsional hinged device, such as a mirror, having the advantages of an oscillating device with permanent magnets mounted on the hinges, but...
Leakage balancing transistor for jitter reduction in CML to CMOS
The CML (current mode logic) to CMOS converter with a leakage balancing transistor for jitter reduction includes: a differential input stage; an output stage...
Method of sensing motor winding current in integrated stepper motor buffer
A method and motor controller for sensing motor winding current. An FET drive transistor has its ON resistance periodically increased to about five times the...
Semiconductor device with a conductive layer including a copper layer with
A method of manufacturing a semiconductor device includes the steps of providing a semiconductor substrate (202), forming a dielectric layer (204) over the...
Distributed power MOSFET
Segmented power transistors and fabrication methods are disclosed in which transistor segments are spaced from one another to facilitate thermal diffusion, and...
Drain-extended MOS transistors with diode clamp and methods for making the
High side extended-drain MOS driver transistors (T2) are presented in which an extended drain (108, 156) is separated from a first buried layer (120) by a second...
Chemical mechanical polishing method and apparatus
A method for removing material from the surface of a semiconductor wafer with a chemical mechanical polishing process is described. The method uses a polishing...
Tap with separate scan cell in series with instruction register
An integrated circuit can have plural core circuits, each having a test access port that is defined in IEEE standard 1149.1. Access to and control of these ports...
Video block transform
Integer transforms of 4.times.4 blocks of the type used in proposed H.26L but adapted to 16-bit arithmetic by shifts after matrix multiplications and integer...
Transmit power control in a wireless communication device
A method and apparatus permit a wireless communication device to be calibrated during manufacturing and subsequently re-calibrated while in use to correct for...
Method of timing compensation for OFDM-based wireless communication system
coded parameter signaling (CPS)...
A method of determining CPS data in an OFDM-based, wireless communication system resolves the phase angle difference between training tones in a burst without...
Time-domain windowing of multi-band OFDM system to enable spectral
A method of wirelessly communicating is disclosed. The method comprises generating a plurality of tones for a wideband orthogonal frequency division multiplex...
Time domain equalizer and method
Time domain equalizer determination for discrete multitone systems by tone error minimization from a starting point of a single-tone equalizer.
Method to mitigate effects of ISDN off/on transitions in ADSL
The present invention provides for a method and apparatus for allocating data to subchannels used for ADSL transmission over a communication link which supports...
Reduced subset scan and dual frequency wakeup for bluetooth inquiry
An inquiry message is transmitted successively on each of a first plurality of transmit frequencies (44 48) and thereafter successively on each of a second...
Spread spectrum path estimation
Spread spectrum rake receiver estimates number of paths within a chip interval and assigns corresponding fingers. Cross-correlation matrix eigenvalues or direct...
Method of increasing data rate in a wireless data communication network
via clock switching
A method of increasing the data rate in a wireless Ethernet employs clock switching between the preamble and the encoded data portion of a packet structure. A...
Method and apparatus for multiuser access in a multicarrier modulation
A multiple access system for a network using multicarrier modulation. To contend for service a subscriber station selects an upcoming frame in whose contention...
Apparatus and method for driving a write head
An apparatus for driving a write head in response to a data signal includes: (a) a first drive unit coupled with the write head; (b) a second drive unit coupled...
Rod integrators for light recycling
An integrating rod (200) for use with a multiple segment dynamic filter, such as a spiral dichroic color wheel having three or more narrow filters adjacent to...
Digital micro-mirror device having improved contrast and method for the
According to one embodiment of the present invention, a digital micro-mirror device having improved contrast and a method for the same are provided. The digital...
Automatic white balancing via illuminant scoring
Automatic white balancing and/or autoexposure as useful in a digital camera extracts color channel gains from comparisons of image colors with reference colors...
Gain calibration of a digital controlled oscillator
A novel apparatus for and a method of estimating, calibrating and tracking in real-time the gain of a radio frequency (RF) digitally controlled oscillator (DCO)...
Method of generating a pulsed output signal from a periodic ramp signal
and a reference voltage, and a switch...
In the proposed method of generating a pulsed output signal from a periodic ramp signal and a reference voltage, the linear range of duty cycles of the pulsed...
Systems and methods for reducing electromagnetic emissions from a
controller area network transceiver
Systems are provided for reducing electromagnetic emissions from a controller area network transceiver. A driver circuit is operative to transmit communications...
Comparing on die response and expected response applied to outputs
A test controller applies test stimulus signals to the input pads of plural die on a wafer in parallel. The test controller also applies encoded test response...
Semiconductor device having resin anti-bleed feature
A device and a method for controlling resin bleed, the device comprising a substrate having a surface, wherein an interior region, a peripheral region, and an...
Ferroelectric capacitor hydrogen barriers and methods for fabricating the
Hydrogen barriers and fabrication methods are provided for protecting ferroelectric capacitors (C.sub.FE) from hydrogen diffusion in semiconductor devices (102),...
IC with comparator receiving expected and mask data from pads
Test circuits located on semiconductor die enable a tester to test a plurality of die/ICs in parallel by inputting both stimulus and response patterns to the...
Method of fabricating a semiconductor having dual gate electrodes using a
composition-altered metal layer
Fabricating a semiconductor includes depositing a metal layer outwardly from a dielectric layer and forming a mask layer outwardly from a first portion of the...
Integration scheme for using silicided dual work function metal gates
The present invention provides a method for manufacturing a semiconductor device and a method for manufacturing an integrated circuit including the semiconductor...
Reliable high voltage gate dielectric layers using a dual nitridation
Dual gate dielectric layers are formed on a semiconductor substrate for MOS transistor fabrication. A first dielectric layer (30) is formed on a semiconductor...
High contrast projection
A method and system for improving the contrast ratio of a projected image. An asymmetric aperture stop improves the contrast ratio of a projected image. Using...
Layered decoding approach for low density parity check (LDPC) codes
A method of decoding in layers data received in a communication system, comprising receiving a codeword containing a plurality of elements and translating the...
Handheld portable automatic emergency alert system and method
In one embodiment, an automated emergency alert system includes a handheld portable communication device operable to initiate communication over a wireless...
High data rate closed loop MIMO scheme combining transmit diversity and
Closed loop multiple-antenna wireless communications system with antenna weights determined by maximizing a composite channel signal-to-interference-plus-noise...
Image coding using embedded zerotree patterns and bitplanes
An image coding method using wavelet decomposition and coding clusters of four-children coefficients bitplane-wise including value-bits for significance and...
Enhanced color correction circuitry capable of employing negative RGB
Disclosed is a system for adjusting a plurality of component color signals for expanded color gamut displays. The disclosed system comprises an input for...
Selecting between two TAP circuits with MODE/TCK and TCK/MODE signals
Data is communicated through two separate circuits or circuit groups, each having clock and mode inputs, by sequentially reversing the role of the clock and mode...
Phase estimation and compensation in orthogonal frequency division
multiplex (OFDM) systems
Methods are presented for phase estimation and compensation in Orthogonal Frequency Division Multiplex systems. The methods include the step of extracting...
Parallel concatenated trellis-coded modulation with asymmetric signal
Parallel concatenated trellis-coding modulation is accomplished by producing coded bits (21) from uncoded bits and also producing an interleaved version (22) of...
Antennas supporting high density of wireless users in specific directions
A low cost antenna in a base station suitable for deployment where high density of wireless users are present in specific directions (e.g., cross roads in urban...
Selecting groups of dies for wafer testing
Integrated circuit die on wafer are tested individually, without probing any of the die, using circuitry (TC1 8, BC1 8, LR1 8, RR1 8, PA1 PA4) provided on the...
DC-DC high frequency boost converter
A DC-DC high frequency boost converter with a supply voltage input (110), a boosted voltage output (112), a series circuit of an inductor (114) and a rectifying...
Switch structure for reduced voltage fluctuation in power domains and
System and method for reducing voltage fluctuations in an integrated circuit with multiple power domains and sub-domains. A preferred embodiment comprises a...