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| Number | Title | Issue Date |
| 8183921 | Offset cancellation for continuous-time circuits One embodiment relates to a continuous-time circuit configured with an offset cancellation loop. The continuous-time circuit includes a multi-stage amplifier chain, including a first amplifier stage and a last amplifier stage, and an offset cancellation loop. The of... | 05/22/2012 |
| 8179172 | Auto-restart circuit and auto-restart method Disclosed is an auto-restart circuit and auto-restart method. A main integrated circuit (IC) of a main stage controls a switching operation of at least one power switch. The auto-restart circuit for restarting the main IC detects a switching state of the at l... | 05/15/2012 |
| 8174269 | Abnormal switching monitoring device and abnormal switching monitoring method The present invention relates to an abnormal switching monitoring device and method. A time point when a high-side switch in which a first electrode receives an input voltage is turned on, a time point when a low-side switch that is connected to a second electrode o... | 05/08/2012 |
| 8171467 | Updating of malicious code patterns using public DNS servers Malicious code patterns of an antivirus may be updated using public DNS (domain name system) servers. An update to the malicious code patterns may be generated and divided into several portions for inclusion in DNS records. The DNS records may be published for cachi... | 05/01/2012 |
| 8171002 | Matching engine with signature generation A system and a method generates at least one signature associated with document. In one embodiment, a document comprised of text is received and parsed to generate a token set. The token set includes a plurality of tokens. Each token corresponds to the text in the d... | 05/01/2012 |
| 8169800 | Power converter, switching control device thereof, and driving method thereof A power converter according to the present invention includes a power supply unit, an output unit, and a switching controller. The power supply unit includes a primary coil of a transformer that receives an input voltage, a gate electrode, and a switch having a firs... | 05/01/2012 |
| 8169163 | Control device and LED light emitting device using the control device The present invention relates to a control device of a light emitting device that includes a plurality of LED rows formed of a plurality of LEDs sequentially connected in series. The control device includes: a plurality of switches respectively connected to the plur... | 05/01/2012 |
| 8164927 | Switch control device and switch control method The present invention relates to a switch control device and a switch control method. The present invention controls a switching operation of a power switch that controls output power of a switching mode power supply (SMPS). The present invention generates an operat... | 04/24/2012 |
| 8164493 | High-resolution circular interpolation time-to-digital converter A time-to-digital converter includes a circular delay chain, a phase interpolator, and a time-to-digital (TDC) core. The circular delay chain receives a first input clock and generates a first set of multi-phase clocks by propagating the first input clock through de... | 04/24/2012 |
| 8163638 | Back side contact solar cell structures and fabrication processes In one embodiment, active diffusion junctions of a solar cell are formed by diffusing dopants from dopant sources selectively deposited on the back side of a wafer. The dopant sources may be selectively deposited using a printing method, for example. Multiple dopant... | 04/24/2012 |
| 8158877 | Localized power point optimizer for solar cell installations In one embodiment, a solar cell installation includes several groups of solar cells. Each group of solar cells has a local power point optimizer configured to control power generation of the group. The local power point optimizer may be configured to determine an op... | 04/17/2012 |
| 8156234 | Multicast distribution of computer virus pattern files with fail over mechanism Components of an antivirus program may be updated by multicasting fragments of the update and unicasting missed fragments. The components may include a virus pattern file. The virus pattern file may be divided into several file fragments, with each file fragment bei... | 04/10/2012 |
| 8148956 | Power factor correction circuit and method of driving the same The present invention relates to a power factor correction circuit and a method of driving the power factor correction circuit. The power factor correction circuit according to the present invention includes a power transfer element configured to receive an input vo... | 04/03/2012 |
| 8148627 | Solar cell interconnect with multiple current paths Solar cell interconnects with multiple current paths. A solar cell interconnect may include a plurality of in-plane slits arranged in several rows. The in-plane slits may be spaced to provide strain relief without unduly increasing the electrical path resistance thr... | 04/03/2012 |
| 8145904 | System and method for network edge data protection Disclosed are systems and methods which examine information communication streams to identify and/or eliminate malicious code, while allowing the good code to pass unaffected. Embodiments operate to provide spam filtering, e.g., filtering of unsolicited and/or unwan... | 03/27/2012 |
| 8145733 | Identification of computers located behind an address translation server In one embodiment, a Network Address Translation (NAT) server performs address translation services for client computers in a private computer network. A traffic monitor computer outside the private computer network may receive network data processed by the NAT serv... | 03/27/2012 |
| 8145003 | Adaptive transforms In one embodiment, an image is broken up into multiple regions or segments, where each segment may be of arbitrary shape, and a transform (multi-scale or otherwise) is applied on the set of segments. In another embodiment, pattern adaptive prediction is used when pr... | 03/27/2012 |
| 8143845 | Cable voltage drop compensation for battery chargers A battery charger may be configured to charge a battery by way of a charging cable. A DC gain of a voltage control loop of the battery charger may be limited to a predetermined value to compensate for voltage drop on the charging cable. For example, a DC gain of an ... | 03/27/2012 |
| 8140664 | Graphical user interface based sensitive information and internal information vulnerability management system A system and method provides a graphical user interface (GUI) for users to monitor and manage sensitive information within an enterprise network. The GUI can provide users with information, such as the presence of input/output devices (I/O device), the location of d... | 03/20/2012 |
| 8139381 | Power converter, and switching controller and driving method thereof In a power converter, a primary coil of a transformer receives an input voltage, and a first terminal of a switch is coupled to the primary coil. An output unit includes a secondary coil of the transformer, and outputs an output voltage to which the input voltage is... | 03/20/2012 |
| 8138739 | Circuits and methods for improving transient response of hysteretic DC-DC converters A hysteretic DC-DC converter includes an observer circuit configured to generate an observer control signal for injection into the control loop of the converter. The observer circuit may be configured to differentiate the output voltage of the converter to generate ... | 03/20/2012 |
| 8135119 | Techniques for protecting telephone users from caller ID spoofing attacks A caller ID verifier may be employed to protect telephone users against caller ID spoofing. The caller ID verifier may be implemented in a telephony apparatus, such as a smart phone, stand alone caller ID device, or telephone network infrastructure, for example. Tel... | 03/13/2012 |
| 8132258 | Remote security servers for protecting customer computers against computer security threats A client computer may be configured to perform computer security operations in conjunction with a remotely located security server. Upon detection of a computer security event, such as reception of a file, the client computer may generate a query input and determine... | 03/06/2012 |
| 8127365 | Origination-based content protection for computer systems Content, such as confidential information of an organization, may be protected by automatically categorizing the content. The automatic categorization may be performed by calculating a sensititiy score of the content, the sensitivity score being indicative of whethe... | 02/28/2012 |
| 8127358 | Thin client for computer security applications A system for scanning a file for malicious codes may include a client agent running in a client computer and a scan server running in a server computer, the client computer and the server computer communicating over a computer network. The client agent may be config... | 02/28/2012 |
| 8120337 | Inverter driver and load driver including the same, and driving method thereof A load driver includes an inverter and an inverter driver. The inverter converts an input voltage into a driving voltage of a discharge lamp using at least one first switch for switching according to a duty ratio, and the inverter driver controls the inverter. The i... | 02/21/2012 |
| 8117878 | Method and apparatus for forming and texturing process shields A textured process shield and similar parts may be formed and textured in the same forming process using a mandrel. The mandrel may have movable portions that may be set into a forming die position to form and texture a workpiece into a process shield and collapsed ... | 02/21/2012 |
| 8117433 | Method and apparatus to prevent vulnerability to virus and worm attacks through instruction remapping A method, apparatus, and computer instructions for processing instructions by a processing unit. An instruction set is dynamically set for the processing unit using a selected instruction map. The selected instruction map is selected as one being different from a no... | 02/14/2012 |
| 8110799 | Confocal secondary electron imaging One embodiment relates to an apparatus using electrons for inspection or metrology of a semiconductor substrate. The apparatus includes an electron source, electron lenses, scan deflectors, an objective electron lens, a collection electron lens, a pin-hole filter, d... | 02/07/2012 |
| 8106355 | Automated inspection using cell-cell subtraction perpendicular to stage motion direction One embodiment relates to an apparatus for automated inspection of a semiconductor substrate. Processor-executable code is configured to control the stage electronics to move the substrate using a continuous motion in a substrate-translation direction and is configu... | 01/31/2012 |
| 8098939 | Adversarial approach for identifying inappropriate text content in images An adversarial approach in detecting inappropriate text content in images. An expression from a listing of expressions may be selected. The listing of expressions may include words, phrases, or other textual content indicative of a particular type of message. Using ... | 01/17/2012 |
| 8098505 | Phase management for interleaved power factor correction An interleaved power factor correction (PFC) circuit includes phase management to control shedding and adding of channels. The channels may be voltage (e.g., boost) converters connected in parallel. The interleaved PFC circuit can have a first channel and a second c... | 01/17/2012 |
| 8089051 | Electron reflector with multiple reflective modes One embodiment relates to a method of controllably reflecting electrons from an array of electron reflectors. An incident electron beam is formed from an electron source, and the incident beam is directed to the array of electron reflectors. A first plurality of the... | 01/03/2012 |
| 8087081 | Selection of remotely located servers for computer security operations A client computer may be configured to perform computer security operation services, such as malicious code scanning and protection against online threats, using one of several remotely located server computers. The client computer may be configured to determine an ... | 12/27/2011 |
| 8087080 | Inspection of downloadable contents for malicious codes A web page available for download from a web server computer may include a reference to a web widget. When the web page is received in a client computer, the reference executes and retrieves the web widget from a security server computer. The web widget may be confi... | 12/27/2011 |
| 8085849 | Automated method and apparatus for estimating motion of an image segment using motion vectors from overlapping macroblocks One embodiment relates to an automated method for estimating motion of an image segment. An image frame is segmented into irregularly-shaped image segments. Motion vectors of blocks of pixels in the image frame are estimated. A determination is made as to the blocks... | 12/27/2011 |
| 8085559 | Current mode control for resonant converter circuits A current mode resonant converter integrates current information from a first drive transistor to generate an integration signal. The integration signal is added to a sawtooth signal to generate a quasi-sawtooth signal. The quasi-sawtooth signal is compared to an er... | 12/27/2011 |
| 8085516 | Ground fault circuit interrupter with self test A ground fault circuit interrupter (GFCI) includes a GFCI controller configured to detect for ground faults and to periodically perform a self test. The self test may be performed during a positive half cycle of an AC line voltage coupled to a load by the GFCI. The ... | 12/27/2011 |
| 8082583 | Delegation of content filtering services between a gateway and trusted clients in a computer network Method and system for performing content filtering services in a computer network. A gateway computer may be configured to be in the data path of network communications between client computers in a private computer network and computers in a public computer network... | 12/20/2011 |
| 8063365 | Non-shot-noise-limited source for electron beam lithography or inspection One embodiment relates to an electron source apparatus for an electron beam lithography tool or an electron beam inspection tool. A cathode is configured to emit electrons, and an anode is configured to accelerate the electrons so as to create an electron beam. Ther... | 11/22/2011 |
