Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8164527 | Antenna apparatus and method for reducing background noise and increasing reception sensitivity An antenna apparatus includes an electrically conductive section having peripheral edges, an antenna element coupled to the electrically conductive section, which transmits or receives electromagnetic signals, and an electromagnetic absorbing carbon material compone... | 04/24/2012 |
| 7880542 | Incremental gain amplifier An amplifier includes an amplifier section having selectable signal paths to provide discrete gain settings, and logic to incrementally select the signal paths. The logic may be configured to increment the gain in response to digital gain control signals or an analo... | 02/01/2011 |
| 7777552 | Logarithmic amplifier with RMS post-processing An RF measurement system includes an envelope detector to extract the modulation envelope of the RF input signal. The resulting baseband envelope signal is then applied to a statistics extraction circuit which provides a precise measure of the modulation envelope. T... | 08/17/2010 |
| 7760833 | Quadrature demodulation with phase shift A quadrature demodulator preweights an input signal prior to mixing with in-phase and quadrature clock signals. In an implementation with discrete phase rotation, a series of weighting circuits may be arranged before or after a select circuit to select the amount of... | 07/20/2010 |
| 7757866 | Rotary annular crossflow filter, degasser, and sludge thickener In an embodiment, axially-fed slurry can be continuously separated into clarified liquid, stripped gas, and thickened sludge in radial counterflow between counter-rotating coaxial centrifugal impellers. One impeller comprises an annular crossflow filter through whic... | 07/20/2010 |
| 7756053 | Memory agent with error hardware A memory agent that communicates with another memory agent over links may include error hardware to monitor errors in the links. In some embodiments, the error hardware may include logic to classify the errors into different severity levels, control corrective actio... | 07/13/2010 |
| 7632557 | Method for restoring used railroad ties and the restored railroad ties formed thereby This invention provides a method for restoring at least one means defining a railroad spike hole located in a used railroad tie. In this way, the restored railroad tie can be reused in subsequent rail replacement operations. The restored railroad tie is capable of h... | 12/15/2009 |
| 7620605 | System and method for processing tokenless biometric electronic transmissions using an electronic rule module clearinghouse Herein is described a tokenless biometric method for processing electronic transmissions, using at least one user biometric sample, an electronic identicator and an electronic rule module clearinghouse. The steps for processing of the electronic transmissions compri... | 11/17/2009 |
| 7602794 | Implementation of control plane protocols and networking stacks in a distributed network device A network device, such as a router or switch, uses multiple forwarding and control processors that operate different protocols or operating systems to route a packet in a computer network. A support stack module determines which processor a packet is routed to and c... | 10/13/2009 |
| 7578875 | Black inks and method for making same Disclosed is a phase change black ink composition comprising (1) a low polarity ink carrier comprising (A) an ester-terminated polyamide, (B) a Guerbet alcohol or a Guerbet alcohol mixture including at least one linear alcohol, and (C) a low polarity wax, and (2) a ... | 08/25/2009 |
| 7572325 | Ink carriers, phase change inks including same and methods for making same Disclosed is an ink carrier comprising (A) an antioxidant mixture comprising (a) a hindered phenol antioxidant, and (b) a hindered amine antioxidant, (B) a polyalkylene wax, (C) a functional wax, and (D) an ester-terminated amide. The low polarity ink carrier is sub... | 08/11/2009 |
| 7563314 | Ink carriers containing nanoparticles, phase change inks including same and methods for making same Disclosed is an ink carrier and a method for forming same, and a phase change ink including same. The ink carrier comprises a colloidal dispersion of at least one of silica nanoparticles and metal oxide nanoparticles. The ink carrier can also include a low melting w... | 07/21/2009 |
| 7563313 | Ink carriers, phase change inks including same and methods for making same Disclosed is an ink carrier comprising an ester terminated oligo-amide material having a substantially low polydispersity. This ink carrier can be combined with a colorant to produce an ink composition. ... | 07/21/2009 |
| 7550964 | Apparatus and method for linked slot-level burn-in A Burn-In Board (BIB) transfer module that links a Burn-In Board (BIB) Loader/Unloader (BLU) to a burn-in chamber rack. The BIB transfer module is capable of transferring a BIB between the BLU and the burn-in chamber rack by moving the BIB in at least two perpendicu... | 06/23/2009 |
| 7550846 | Conductive bump with a plurality of contact elements A method of forming a contact structure and a contact structure. The contact structure includes a contact location, and contact elements disposed substantially on the contact location, at least one such contact element including a deformable center and a conducting ... | 06/23/2009 |
| 7001328 | Method for using tropoelastin and for producing tropoelastin biomaterials It is a general object of the invention to provide a method of effecting repair or replacement or supporting a section of a body tissue using tropoelastin, preferably crosslinked tropoelastin and specifically to provide a tropoelastin biomaterial suitable for use as... | 02/21/2006 |
| 7537185 | Swiveling beverage holder Embodiments of the invention prevent beverage spills by retaining a beverage container in a swiveling device that provides the ability to upright itself when not in use. Embodiments of the invention further prevent dropping of beverage containers by retaining the be... | 05/26/2009 |
| D588484 | Low voltage occupancy sensor | 03/17/2009 |
| 7500131 | Training pattern based de-skew mechanism and frame alignment Some embodiments of the invention provide a training sequence that may be used in a deskewing process or a protocol to be implemented in a training sequence deskew. Embodiments may also comprise a training pattern that allows for header or frame alignment. ... | 03/03/2009 |
| 7499489 | Equalization in clock recovery receivers Equalization techniques in clock recovery receivers may include use of a passive equalizer prior to amplification, combined frequency paths in and active and/or passive equalizer, capacitive degeneration and/or negative feedback with low-pass filtering in an active ... | 03/03/2009 |
| 7495511 | Input system for a variable gain amplifier having class-AB transconductance stages A variable gain amplifier includes an attenuator having a plurality of pairs of tap points, and a plurality of pairs of gm cells, wherein each pair of gm cells is coupled to a corresponding pair of the tap points, and each pair of gm cells is constructed and arrange... | 02/24/2009 |
| 7483485 | Wireless event authentication system A wireless data acquisition and recording (DAR) system includes acquisition circuitry including a video camera and/or a microphone carried by an operator for capturing video and audio events viewed and/or heard by the operator. A wireless transmitter wirelessly tran... | 01/27/2009 |
| 7461949 | Methods and systems relating to solid state light sources for use in industrial processes Methods and systems relating to solid state light sources for use in industrial processes. ... | 12/09/2008 |
| 7453309 | Logarithmic temperature compensation for detectors The intercept of a logarithmic amplifier is temperature stabilized by generating a signal having the form H log H where H is a function of temperature such as T/T0. The first H factor is cancelled, thereby generating a correction signal having the form Y ... | 11/18/2008 |
| 7443150 | Switching power supply control with phase shift A control system for a switching power supply shifts the phase of a PWM signal in response to a change in operating conditions. The phase may be shifted by resetting an oscillator that controls the PWM signal. Phase shift logic may include a sample-hold circuit that... | 10/28/2008 |
| 7432526 | Surface-passivated zinc-oxide based sensor A semiconductor device has a heterostructure including a first layer of semiconductor oxide material. A second layer of semiconductor oxide material is formed on the first layer of semiconductor oxide material such that a two dimensional electron gas builds up at an... | 10/07/2008 |
| 7427327 | Silica glass crucible with barium-doped inner wall A silica glass crucible includes a thin barium-doped inner layer, a stable, bubble-free intermediate layer, and a stable opaque outer layer. The fusion process of the present invention controls the dynamic gas balance at the fusion front where formed grain is melted... | 09/23/2008 |
| D575972 | Magnetic storage rack for tools and parts | 09/02/2008 |
| 7417390 | Method and apparatus for driving a brushless DC motor A drive circuit for a brushless DC motor includes a switch constructed and arranged to drive the motor with a pulse signal responsive to a control signal, and control circuitry coupled to the switch and constructed and arranged to generate the control signal respons... | 08/26/2008 |
| 7414388 | Gain and phase detector having dual logarithmic amplifiers A gain-phase detector differentially processes the outputs from two logarithmic amplifiers to provide ratiometric gain measurement, thereby eliminating intercept as a parameter. Hard-limited outputs from the dual amplifiers are multiplied in a logarithmic scalable p... | 08/19/2008 |
| 7404055 | Memory transfer with early access to critical portion In some embodiments, data may be transferred from a first memory agent to a second memory agent in a first format having a first width, and at least a critical portion of the data maybe transferred from the second memory agent back to the first memory agent in a sec... | 07/22/2008 |
| 7395308 | Grounded emitter logarithmic circuit A logarithmically-responding circuit includes a differential-input amplifier that drives the control terminal of a three-terminal device that exhibits an exponential response in its output current. This arrangement allows the third terminal to be grounded. In a pref... | 07/01/2008 |
| D571572 | Chair | 06/24/2008 |
| 7383696 | Silica glass crucible with bubble-free and reduced bubble growth wall A silica glass crucible includes a stable, bubble-free inner layer and an opaque outer layer, both layers demonstrating reduced bubble growth during a Czochralski process. When used in the CZ process, little volume change is observed in the crucible wall, and the cr... | 06/10/2008 |
| 7382190 | Variable attenuation system having continuous input steering A variable attenuation system includes a steering core that continuously steers a signal to an attenuator having multiple inputs. An embodiment having an attenuator constructed from discrete components continuously interpolates a signal between the individual inputs... | 06/03/2008 |
| 7382730 | Two-pass method and apparatus for achieving maximal data compression for a modem relay mode of operation in a voice frame network The present invention is a two-pass method and apparatus for achieving maximal data compression for a voice frame modem relay channel between two endpoint modems. The method includes transitioning the channel from a voice mode to a modem relay mode of operation; neg... | 06/03/2008 |
| 7376742 | Resource and AAA service device A network device. The network device includes a gateway switch to receive an incoming call and to identify a source of the call. A parser then receives a request associated with the incoming call and produces a parsed request. A message parser within the parser rece... | 05/20/2008 |
| 7375978 | Method and apparatus for trace shielding and routing on a substrate Some embodiments of the invention effectively shield signal traces on a substrate without impacting the signal trace routing on the metal layers of the substrate. Other embodiments of the invention provide improved power delivery without impacting the signal trace r... | 05/20/2008 |
| 7369502 | Intelligent provisioning of DSP channels for codec changes A communication system in which a profile of codecs is loaded at the originating end. The originating end sends the profile of codecs to the terminating end and receives in return an indication of which codec to use. The originating end and the terminating end creat... | 05/06/2008 |
| 7362177 | Interpolator having dual transistor ranks and ratiometric control An interpolator utilizes two ranks of transistors to generate a plurality of interpolator currents within the confines of a low power supply voltage. The first rank of transistors are underdriven, thereby generating a plurality of partially switched currents having ... | 04/22/2008 |
