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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 8174070 | Dual channel trench LDMOS transistors and BCD process with deep trench isolation A dual channel trench LDMOS transistor includes a substrate of a first conductivity type; a semiconductor layer of a second conductivity type formed on the substrate; a first trench formed in the semiconductor layer where a trench gate is formed in an upper portion ... | 05/08/2012 |
| 8159821 | Diffusion bonding circuit submount directly to vapor chamber A method for providing a high in-plane and through-plane thermal conductivity path between a heat producing electronic device and a heat sink is described. A vapor chamber, or other type of heat spreader, is provided that has a substantially flat top copper surface ... | 04/17/2012 |
| 8157564 | Manufacturing method and apparatus of artificial teeth using dental CT The present invention discloses a manufacturing method and apparatus of artificial human teeth using dental CT. The method comprises the steps of: removing a damaged part of human teeth; obtaining surface coordinates of the teeth using a dental CT machine located at... | 04/17/2012 |
| 8156693 | Wildlife deterrent for high voltage supporting members A wildlife deterrent for a utility support structure member between two conductors includes a bracket for attachment to the supporting member, a center support piece with a variable height arm connector, and two adjustable arms pivotally attached to the arm connecto... | 04/17/2012 |
| 8155205 | Dynamic decoder switch A method provides for dynamic changes in a software video player. The method includes learning of a dynamic change from an input pin of a decoder filter, recording states of the decoder filter and a renderer filter, stopping the decoder and the renderer filters with... | 04/10/2012 |
| 8152625 | Bonus game awarding and displaying selected values Various bonus games for being played on a gaming machine are described. The base game may consist of the random selection and display of a 5×3 matrix of symbols. In one bonus game (FIGS. 5-7), upon a certain outcome of the base game including special ... | 04/10/2012 |
| 8150149 | Automatic determination of exciting segments from a video A method is provided to automatically determine “exciting” segments from a video. The method includes calculating image features of each frame in the video, determining a difference for each pair of adjacent frames, calculating a sum of differences for each grou... | 04/03/2012 |
| 8147324 | Gaming machine with hidden jackpot Various type of jackpot systems are disclosed wherein visible jackpots are replenished after a win by an invisible jackpot. Some embodiments include: replenishing the visible jackpot with less than 100% of the invisible jackpot; increasing the invisible jackpot at a... | 04/03/2012 |
| 8138851 | High bandwidth programmable transmission line equalizer A transmission line equalizer includes multiple signal paths connected in parallel between an equalizer input signal and an output amplifier where each signal path has a network implementing a specific frequency dependent response and each signal path implements cur... | 03/20/2012 |
| 8135103 | Mixed domain spread spectrum clocking for use in imaging systems for maximum imaging quality and optimized EMI performance A method of operating a line imaging device including receiving a first clock signal indicative of a system timing signal in the line imaging device, generating a second clock signal based on the first clock signal and being unmodulated where the second clock signal... | 03/13/2012 |
| 8130133 | A/D converter using isolation switches In an A/D converter, isolation switches are used between the capacitors and the conversion switches. The conversion switches are those switches used to selectively couple the plates of the binary weighted capacitors to either Vref or 0 volts during the A/D conversio... | 03/06/2012 |
| 8123365 | One-way display using color filter A one-way display system includes a transparent screen and a transparent color filter. An image is emitted by the screen or projected onto the screen. The image is formed from a combination of colored lights. Instead of spanning all the wavelengths of each color, ea... | 02/28/2012 |
| 8120105 | Lateral DMOS field effect transistor with reduced threshold voltage and self-aligned drift region A method of forming a lateral DMOS transistor includes performing a low energy implantation using a first dopant type and being applied to the entire device area. The dopants of the low energy implantation are blocked by the conductive gate. The method further inclu... | 02/21/2012 |
| 8113919 | Bowling ball surface treatment apparatus A bowling ball surface treatment apparatus is designed to uniformly abrade and polish a bowling ball. The apparatus includes a housing and a ball movement guider provided inside the housing for guiding movement of a bowling ball and confining the bowling ball within... | 02/14/2012 |
| 8113436 | Semiconductor structure with communication element In one embodiment, a structure includes a semiconductor chip including a communication element for performing a wireless communication function where the communication element has a communication core occupying a region of the semiconductor chip, a plurality of chip... | 02/14/2012 |
| 8104895 | One-way transparent display systems A display system includes a projection screen and a projector. The projection screen includes a retarder plate between a polarizer and a transparent screen. The projector projects an image through the polarizer and the retarder plate onto the transparent screen. The... | 01/31/2012 |
| 8100764 | Software security for gaming devices A secure smart card or other secure modular memory device is plugged into (or otherwise connected to) a port of a game controller board internal to a gaming machine, where it is not accessible to a player. The smart card is programmed to detect an encrypted “chall... | 01/24/2012 |
| 8094892 | Automatic photo orientation detection A method determining image orientation includes determining if an image includes an orientation tag and if the tag indicates the image is rotated +90 or −90 degrees. When the image does not include the tag or the tag does not indicate the image is rotated, the met... | 01/10/2012 |
| 8092659 | Multi-station sputtering and cleaning system A multi-chamber processing system is described for depositing materials on multiple workpieces (wafers, display panels, or any other workpieces) at a time in a vacuum chamber. The system includes a sputtering chamber and a separate pre-clean chamber, where wafers ca... | 01/10/2012 |
| 8092298 | Multiple progressive jackpots for a gaming device A gaming machine is described wherein a player first plays a primary game, such as the spinning and stopping of mechanical or video reels displaying symbols. A plurality of progressive jackpots is displayed to the player, where the progressive jackpots are increment... | 01/10/2012 |
| 8091718 | Cap for sealing nipple A cap includes a cavity for receiving the rounded tip of a nipple. The cavity narrows from an open end to a neck, and widens from the neck to a closed end. The neck forms an interference fit with the rounded tip, and the interference fit forms a sealed compartment i... | 01/10/2012 |
| 8085005 | Buck-boost converter with sample and hold circuit in current loop In an average-current mode control type buck-boost PWM converter, a sample and hold circuit is inserted in the current loop to avoid problems associated with ripple of the average inductor current demand signal. The rippling average inductor current is generated by ... | 12/27/2011 |
| 8082788 | MEMS load cell and strain sensor A sensor includes at least one stationary pad with comb teeth, a hub, at least one actuator spoke coupled to a location on the hub, and at least one sensing spoke extending from the hub. The sensing spokes have comb teeth generally interdigitated with the comb teeth... | 12/27/2011 |
| 8077179 | System and method for creating animated video with personalized elements Described herein are systems and methods for cartoonizing an image and incorporating the image into an animated video based upon a predefined animated story. In alternate embodiments of the invention, multiple images may be incorporated into the animated video. In f... | 12/13/2011 |
| 8076181 | Lead plating technique for singulated IC packages A packaging technique is described for QFNs, DFN, and other surface mount packages that allows the sides of leads to be plated with a wettable metal prior to the lead frames being singulated from the lead frame sheet. The leads of the lead frames in the sheet are sh... | 12/13/2011 |
| 8070584 | Matrix game involving an award based on non-highlighted grid positions In one embodiment, the invention is a secondary game played concurrently with a conventional Keno game. In Keno, a player selects a plurality of numbers (e.g., 4-20) within an M×N grid (e.g., 8×10) of different numbers. A random number generator randomly selects a... | 12/06/2011 |
| 8070580 | Conversion of lowest value symbols into special symbols in a gaming machine Upon a trigger event occurring during a main game on a video slot machine, a number of free games having a special feature are awarded to the player. For each trigger event that occurs during the free games, the lowest value symbol displayed for each free spin becom... | 12/06/2011 |
| 8063996 | Content delivery to a digital TV using a low-power frequency converted RF signal A simple antenna is connected to the RF input port on a conventional digital TV to receive video content from a plurality of video content sources wirelessly. The video content sources, such as a DVD player and cable/satellite box, may generate baseband signals in a... | 11/22/2011 |
| 8061692 | Floor isolation system A floor isolation system includes a platform and a multidirectional spring unit. The platform has rolling supports that isolate the platform from lateral movements of a substrate. The platform further has sliding supports that (1) prevent the platform from moving fr... | 11/22/2011 |
| 8035874 | MEMS device with off-axis actuator A micro-electro-mechanical system (MEMS) mirror device has a mirror, a frame rotatively coupled to the mirror, and a uniaxial actuator rotatively coupled to the frame where the rotational axis of the actuator is offset from the rotational axes of the mirror and the ... | 10/11/2011 |
| 8031098 | DAC circuit with pseudo-return-to-zero scheme and DAC calibration circuit and method In one embodiment, digital-to-analog converter (DAC) circuit includes dual DAC units employing pseudo-return-to-zero DAC operations to reduce inter-symbol interference. Moreover, each DAC unit is implemented using complementary MOS transistors to improve conversion ... | 10/04/2011 |
| 8030078 | Bonus game where player collects playing cards to make a hand A base game on a gaming machine may be a conventional 5×3 video reel-type game, where awards are granted for winning symbol combinations in the base game. If a bonus trigger has occurred, a special card deck symbol is added to at least one reel, and the player is g... | 10/04/2011 |
| 8018999 | Algorithm description on non-motion blur image generation project A method for simulating an image captured at a long exposure time (“simulated image”), includes (1) capturing each of first, second, and third images at a short exposure time, (2) determining a first relative motion between the first and the second images, (3) t... | 09/13/2011 |
| 8018704 | Parallel analog and digital timers in power controller circuit breaker A circuit breaker for a power controller integrated circuit is described where an analog timer and a digital timer are provided in parallel. The digital timer provides a fixed, on-chip maximum delay during an overcurrent condition to ensure the transistor will not b... | 09/13/2011 |
| 8013414 | Gallium nitride semiconductor device with improved forward conduction A gallium nitride based semiconductor diode includes a substrate, a semiconductor body including a first heavily doped GaN layer and a second lightly doped GaN layer. The semiconductor body includes mesas projecting upwardly from a lower surface where each of the me... | 09/06/2011 |
| 8004039 | Field effect transistor with trench-isolated drain A MOS transistor includes a body region of a first conductivity type, a conductive gate and a first dielectric layer, a source region of a second conductivity type formed in the body region, a heavily doped source contact diffusion region formed in the source region... | 08/23/2011 |
| 7979813 | Chip-scale package conversion technique for dies A method is described for converting an existing die, originally designed for a non-chip-scale package, to a chip-scale package die, where the die's bonding pads are located in positions within a defined grid of candidate positions. In the first step, the die's layo... | 07/12/2011 |
| 7974190 | Dynamic queue memory allocation with flow control A method in an Ethernet controller for allocating memory space in a buffer memory between a transmit queue (TXQ) and a receive queue (RXQ) includes allocating initial memory space in the buffer memory to the RXQ and the TXQ; defining a RXQ high watermark and a RXQ l... | 07/05/2011 |
| 7973846 | Digital image capture having an ultra-high dynamic range An image capture method in a digital image sensor implements a continuous sampling technique with a massively parallel thermometer-code analog-to-digital conversion (ADC) technique to generate pixel data having an intrinsic to an ultra-high dynamic range. In one emb... | 07/05/2011 |
| 7969637 | MEMS mirror driven by one motion with oscillations of different frequency for bidirectional rotation A micro-electro-mechanical system (MEMS) mirror system has an actuator that imparts a motion with a first periodic movement of high frequency superimposed a second periodic movement of low frequency to a frame and a mirror coupled to the frame so that the mirror rot... | 06/28/2011 |
