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| Number | Title | Issue Date |
| 7301107 | Semiconductor device having reduced intra-level and inter-level capacitance An interconnect structure of a semiconductor device designed for reduced intralevel and interlevel capacitance, and includes a lower metal layer and an upper metal layer and an insulating layer interposed between metal layers. Each of the lower metal layer and upper... | 11/27/2007 |
| 6975664 | Article comprising a two-dimensional photonic crystal coupler and method of making the same A two-dimensional photonic crystal coupler is disclosed, together with a cross-coupled laser structure that is based on a two-dimensional photonic crystal coupler stage. Unlike traditional grating couplers, this two-dimensional photonic crystal coupler can couple li... | 12/13/2005 |
| 6778655 | Call waiting caller identifier A method and apparatus for processing an incoming call during a call-in-progress is disclosed. The method and apparatus provide non-visual indicators to a user indicating the type of incoming caller. ... | 08/17/2004 |
| 6706609 | Method of forming an alignment feature in or on a multi-layered semiconductor structure A method of forming a multi-layered semiconductor structure having an alignment feature for aligning a lithography mask and that may be used in connection with a SCALPEL tool. The present invention is particularly well-suited for sub-micron CMOS technology devices a... | 03/16/2004 |
| 6671341 | Glitch-free phase switching synthesizer A system for generating a glitch-free output signal having a frequency. The system comprises a frequency divider for receiving a signal having an input frequency, wherein the frequency divider is configured to generate a plurality of corresponding phase-s... | 12/30/2003 |
| 6630772 | Device comprising carbon nanotube field emitter structure and process for forming device The invention provides improved devices containing adherent carbon nanotube films, in particular electron field emitter structures containing such films. Previously, attaining even moderate adherence of powdery or mat-like nanotubes to a substrate was dif... | 10/07/2003 |
| 6622153 | Virtual parallel multiplier-accumulator A virtual parallel multiplier-accumulator (VMAC) that can execute more than or less than one MAC operation in a single system clock cycle. The inventive VMAC advantageously employs a resource/time-sharing methodology with multiple sequential computational... | 09/16/2003 |
| 6611594 | Robust signed regressor PNLMS method and apparatus for network echo cancellation The invention is a method and apparatus for performing echo cancellation utilizing a Proportionate Normalized Least Mean Squares (PNLMS) algorithm having a high convergence rate and low complexity. The invention utilizes a proportional step-size adaptive ... | 08/26/2003 |
| 6561951 | Networked biometrically secured fitness device scheduler An apparatus and method are provided for scheduling and controlling access to physical fitness devices. A prospective user makes an entry into a reservation system reserving the timeframe to use a particular fitness device. Each physical fitness device is... | 05/13/2003 |
| 6545454 | System and method for testing an integrated circuit device using FFT analysis based on a non-iterative FFT coherency analysis algorithm A system tests analog and mixed signal IC devices using an FFT algorithm, supported by a non-iterative Fast Fourier Transform (FFT) coherency analysis algorithm to establish FFT sample-set coherency. A test signal is input into the IC device, and an outpu... | 04/08/2003 |
| 6531857 | Low voltage bandgap reference circuit A bandgap reference circuit that uses reduced substrate area while requiring relatively low voltage. The circuit may include a bipolar transistor with a resistor electrically connected across the emitter-base of the bipolar transistor. The resistor sums a... | 03/11/2003 |
| 6526141 | Method and apparatus for network echo cancellation using a proportionate normalized least mean squares algorithm The invention is a method and apparatus for performing adaptive filtering, and particularly echo cancellation, utilizing an efficient and effective adaptive algorithm. The invention is particularly useful in connection with network echo cancellation but i... | 02/25/2003 |
| 6525681 | DC compensation method and apparatus A method and apparatus which compensates for the effect of DC components due to imperfections in analog circuits used in a coder/decoder (CODEC) by adding a compensation value to an outgoing signal prior to the DC components being introduced. The method i... | 02/25/2003 |
| 6523233 | Method and apparatus for telephone network impairment detection and compensation in signal transmission between modems A general, low cost method for detecting and compensating any non-linear digital impairment and linear analog gain for data communication systems transmitting signals through telephone networks is disclosed. The inventive method eliminates the need of cos... | 02/25/2003 |
| 6519711 | Method and apparatus for controlling a clocked circuit having a register for storing a bit received from an input terminal and an output terminal connected to clock terminal of the clocked circuit A method and apparatus for controlling a clock of a component of an integrated circuit for testing purposes. The clock is controlled on a hardware level. Specifically, a stepped clocking technique is provided by which a processor can advance the clock sig... | 02/11/2003 |
| 6516010 | Method and apparatus for active numeric temperature compensation of an etalon in a wavelength stabilized laser A unique method and apparatus for locking on an absolute wavelength of laser light output by a laser package by actively compensating for a change in the temperature of an etalon optical filter is disclosed. Changes in etalon response characteristics due ... | 02/04/2003 |
| 6232040 | Method of electron beam exposure utilizing emitter with conductive mesh grid The specification describes a method and apparatus for electron beam lithography wherein a Wehnelt electron gun is modified to improve the uniformity of the electron beam. A mesh grid is applied to the Wehnelt aperture and the mesh grid functions as a mul... | 05/15/2001 |
