Abstract: An embodiment of the invention relates to a power converter formed with an error amplifier and a related method. In an embodiment, a first switch is coupled in series with an error amplifier compensation capacitor. Upon detection of a current level greater than a threshold level, the compensation capacitor is decoupled from the error amplifier by opening the first switch. In an embodiment, a second switch is coupled in parallel with the compensation capacitor, and the current-sensing circuit enables conductivity of the second switch to discharge the compensation capacitor upon detection of the current level greater than the threshold level. The second switch is opened upon detection of the current level less than the threshold level. In an embodiment, the current-sensing circuit controls an output current of the power converter at a current-limit level upon detection of the internal current level greater than the threshold level.

Abstract: A system and method for automatically updating a digital certificate prompts a user of a client computer to update a current digital certificate if a period of validity of the current digital certificate elapses or is about to elapse, and creates a new digital certificate if the current digital certificate needs to be updated. The system and method further deletes the current digital certificate, and loads the new digital certificate into a storage system of the client computer.

Abstract: A bracket for screen expansion includes a first arm, and a second arm. The first arm includes a first main body extending horizontally. Two horizontally spaced first assembling holes are defined in the first main body. The second arm is horizontally rotatably mounted to the first arm. The second arm includes a second main body extending horizontally. Two horizontally spaced second assembling holes are defined in the second main body. The brackets, to achieve screen expansion may be connected to a number of displays.

Abstract: A computer host includes a enclosure, a circuit board, and a cooling assembly. The enclosure includes a first sidewall and a second sidewall opposite to the first sidewall. The first sidewall defines a plurality of vents. The circuit board is received in the enclosure. A central processing unit and at least one memory chip are plugged into corresponding slots of the circuit board. The cooling assembly includes at least one fan and an airflow guide. The at least one fan is positioned adjacent to the second sidewall and is aligned with the vents. Each of the at least one fan defines an outlet. The airflow guide is positioned on the circuit board with the outlet of the fan being sealed with edges defining entrances of the airflow guide.

Abstract: An information handling system includes a processor, system memory, and a remote access resource that includes a virtual card reader enabled to establish a communication channel between the remote access resource and a remote card reader to communicate smart card reader access requests and response between them. The system may include an authentication module requiring two factor authentication including userid/password authentication and a physical card authentication. The communication channel enables remote physical card authentication. The resource further supports redirection of system console traffic enabling remote userid/password authentication. The virtual card reader is preferably operable to download a virtual card reader client to a remote management station to which the smart card reader is attached. The remote access resource may be operable to direct console traffic of the system to the remote management station to display a system login screen on the remote management station.

Abstract: A memory interface physical layer macro including one or more embedded input/output (I/O) buffers, one or more memory interface hardmacros and control logic. The one or more embedded input/output (I/O) buffers support a plurality of I/O supply voltage levels. The one or more memory interface hardmacros are coupled to the one or more embedded I/O buffers. The control logic controls the one or more hardmacros and the one or more I/O buffers.

Abstract: A terminal location estimation method in a wireless communication system in which an access point (AP) provides an access service to a plurality of terminals includes defining a plurality of beam spaces around the AP through space multiplexing; scheduling the beam spaces according to a predetermined pattern; simultaneously forming a beam in at least one beam space; and detecting the existence and location of a terminal according to whether a response message in response to the formed beam is received. Accordingly, an AP forms beams in a predetermined scheduling pattern, and each of the terminals detecting the beams registers its location by informing the AP that each of the terminals exists in a relevant beam area, and thus, a location of each of the terminals can be estimated without using a complex DOA algorithm.

Abstract: A power generating black mask comprising an anti-reflection layer deposited over a substrate, a first electrode layer deposited over the anti-reflection layer, a semi-conductor layer deposited over the first electrode layer and a second electrode layer deposited over the semi-conductor layer.

Abstract: Sharing a resource may include the use of label values associated with information units presented to the resource. The label values may be determined based on, for example, arrival rates and/or committed flow rates. Criteria may be applied to label values to determine if the associated information units may be dropped.

Abstract: A thin black mask is created using a single mask process. A dielectric layer is deposited over a substrate. An absorber layer is deposited over the dielectric layer and a reflector layer is deposited over the absorber layer. The absorber layer and the reflector layer are patterned using a single mask process.

Abstract: In one embodiment, a power supply controller is configured to select either an error signal or a variable reference signal to control an on-time of the switching output signal of the power supply controller.

Abstract: Two-terminal switching devices characterized by high on/off current ratios and by high breakdown voltage are provided. These devices can be employed as switches in the driving circuits of active matrix displays, e.g., in electrophoretic, rotating element and liquid crystal displays. The switching devices include two electrodes, and a layer of a broad band semiconducting material residing between the electrodes. According to one example, the cathode comprises a metal having a low work function, the anode comprises an organic material having a p+ or p++ type of conductivity, and the broad band semiconductor comprises a metal oxide. The work function difference between the cathode and the anode material is preferably at least about 0.6 eV. The on/off current ratios of at least 10,000 over a voltage range of about 15 V can be achieved. The devices can be formed, if desired, on flexible polymeric substrates having low melting points.

Abstract: There is provided a method for making hollow microspheres including heating a feed under conditions sufficient to convert at least a portion of the feed into hollow microspheres, where the heating is conducted under a vacuum. There is also provided hollow microspheres made using this method.

Abstract: A multiuser downlink multiple-input multiple-output (MIMO) system with limited channel information feedback includes an error-free channel vector quantization scheme. Each user has multiple antennas, and the base station includes a matching number of antennas. Each MIMO channel is measured at the terminus end of a corresponding user, and used to obtain the channel state information at the receiver (CSIR). A few data bits of CSIR information are feed back to the base station through the limited feedback channels. The base station collects all these CSIR feedback data bits into a CSI at the transmitter (CSIT). The CSIT is used to determine which users are served, and how to configure a corresponding multi-user precoder. The user data channels will later all be transmitted through such precoder. A codebook of channel quantization vectors is pre-defined and distributed amongst the base station and all the users.

Abstract: A biosensor can be measured by a method that includes: determining malfunction of a production lot information sensing unit; alerting malfunction when the production lot information sensing unit malfunctions; encoding the production lot information through the production lot information sensing unit when the production lot information sensing unit does not malfunction; and detecting a component of a sample through a biosensor strip by using the encoded production lot information.

Abstract: There is provided hollow microspheres that are essentially free of blowing agent. There is also provided hollow microspheres comprising perlite and having a single cell structure.

Abstract: The disclosure provides apparatuses for videoconferencing and a method of operation thereof. In one embodiment, an apparatus includes: (1) a display substrate occupying less than an entirety of a viewing area, (2) an actuator configured to move the display substrate over the viewing area and (3) a camera having a field of view at least partially overlapping the viewing area and configured to capture a camera image through the viewing area.

Abstract: A laser pump cavity includes a heat sink holder with a central through hole, a plurality of slot portions, and a plurality of single emitters. The single emitter includes a heat sink and a single core disposed on the heat sink. The slot portions are uniformly spaced and surround the through hole. The single emitters are connected end to end, thereby forming at least one single emitter array. The at least one single emitter array is disposed in corresponding slot portions with each single core facing the through hole.

Abstract: A durable housing with a soft surface device (100) includes a substrate (10), an electrophoresis coating (20) formed on a surface of the substrate, an intermediate coating (30) formed on the electrophoresis coating, and a top coating (40) formed on the intermediate coating and configured for protecting the intermediate coating. The electrophoresis coating is made of a first resin paint. The intermediate coating is made of a second resin paint containing an isocyanate polymer and/or reaction products of the isocyanate polymer with hydroxyl groups. The top coating is made of a third resin paint an isocyanate polymer cross-linked to the second resin paint of the intermediate coating.

Abstract: A ring design machine receives one or more selections of gemstones and one or more selections of settings and allows a user to “mix and match” gemstones and settings and view a selected gemstone in a compatible setting for that gemstone. To present the gemstone in the setting, the ring design machine presents a combination image that depicts the gemstone in the setting. The ring design machine, which may be implemented using a computer programmed by software, may present the combination image to the user in response to receiving a selection of the gemstone and a selection of the setting from the user via a network.