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| Number | Title | Issue Date |
| 8165832 | Wall plug power monitor A wall plug power monitor accurately measures power consumption of an appliance connected via a wall plug power monitor to AC power supplies of any of the various frequencies used around the world. A three milliohm current sense resistor minimizes power consumption ... | 04/24/2012 |
| 8164391 | Synchronization of multiple high frequency switching power converters in an integrated circuit A phase locked loop is used to synchronize the switching frequency of a high frequency switching power converter to a clock signal. A switching power converter integrated circuit is a tile-based power management unit and includes an oscillator and multiple tiles of ... | 04/24/2012 |
| 8161450 | Re-programmable modular power management circuit An integrated circuit includes a buck converter controller, a PFET, an NFET that is coupled in common drain configuration to the PFET, a first microbump that is connected to the source of the PFET, a second microbump that is connected to the source of the NFET, a th... | 04/17/2012 |
| 8159269 | Multi-function input terminal of integrated circuits A single terminal is used to configure an integrated circuit into one of three states. A circuit within the integrated circuit is coupled to the terminal and determines whether the terminal: 1) is coupled by a low impedance to a voltage source, or 2) is coupled by a... | 04/17/2012 |
| 8159204 | Regulating current output from a buck converter without external current sensing A step-down (buck) switching regulator regulates output current without sensing a current external to a converter integrated circuit. The regulator generates a set current that is indicative of a predetermined current level to which the output current is regulated. ... | 04/17/2012 |
| 8157885 | Continuous production of metallic titanium and titanium-based alloys Metallic titanium is continuously produced in an electric-arc furnace under a vacuum by the metallothermic reduction of titanium tetrachloride by a reducing agent such as magnesium. The nanoparticles of titanium obtained from the reduction are simultaneously melted ... | 04/17/2012 |
| 8155946 | Computerized method and system for searching for text passages in text documents A method is disclosed for searching for text passages in text documents. The method uses computerized prediction-based and ontology-based semantic language processing. Both the text passages that are to be located, as well as the text of the documents that are searc... | 04/10/2012 |
| 8149191 | Sequential calibration of matched current sources A system involves LED strings and programmable current source circuits (CSC). An LED current flows through each LED string. Each LED current is controlled by an associated programmable CSC. In one embodiment, the CSCs form a chain. A first CSC uses a reference curre... | 04/03/2012 |
| 8143865 | Average current mode controlled converter having a buck mode, a boost mode, and a partial four-switch mode An average current-mode controlled converter has a buck mode, a boost mode, and a four-switch mode. In one example, the converter operates in one of the three modes, depending on the difference between the converter output voltage VOUT and the converter input voltag... | 03/27/2012 |
| 8125798 | Constant current and voltage controller in a three-pin package operating in critical conduction mode A self-oscillating flyback converter includes a controller integrated circuit housed in a 3-pin package. A switch control terminal is coupled to the base of an inductor switch that controls the current through a primary inductor of the converter. The controller IC a... | 02/28/2012 |
| 8123386 | Shape forming heat sink with flexible heat rod A conforming heat dissipating structure transfers heat to an irregular surface from a heat source mounted on its bottom surface. The heat dissipating structure includes an open container filled with metal shavings and balls covered by a flexible retainer. The shavin... | 02/28/2012 |
| 8102676 | Compensating for cord resistance to maintain constant voltage at the end of a power converter cord A cord correction circuit in a primary-side-controlled flyback converter compensates for the loss of output voltage caused by the resistance of the charger cord. In one embodiment, a correction voltage is subtracted from a feedback voltage received from a primary-si... | 01/24/2012 |
| 8093121 | ESD protection transistor An electrostatic discharge (ESD) transistor structure includes a self-aligned outrigger less than 0.4 microns from a gate electrode that is 50 microns wide. The outrigger is fabricated on ordinary logic transistors of an integrated circuit without severely affecting... | 01/10/2012 |
| 8089783 | Constant current and voltage controller in a three-pin package with dual-use switch pin A flyback converter includes a controller integrated circuit (IC) housed in an IC package with only three terminals. The controller IC is grounded through a ground terminal. A feedback signal is received onto a power terminal. The feedback signal powers the controll... | 01/03/2012 |
| 8084987 | USB port with smart power management A method involves detecting an inrush current that flows out of a USB port of a first electronic device when a central processing unit (CPU) of the first electronic device is not being powered. The inrush current is detected by a novel inrush current detect circuit ... | 12/27/2011 |
| 8080988 | Switch driver with low impedance initial drive and higher impedance final drive A driver circuit (for example, in a switching power supply or in a Class-D switching amplifier) drives a gate of a switch during a transition with a low output impedance during an initial period and then for the remainder of the transition drives the gate with a mid... | 12/20/2011 |
| 8079007 | Programmable analog tile programming tool A programmable analog tile integrated circuit programming tool communicates a power management control characteristic query soliciting control requirement information for a novel power management integrated circuit (PMIC) tile in a multi-tile power management integr... | 12/13/2011 |
| 8077487 | Using output drop detection pulses to achieve fast transient response from a low-power mode In a first aspect, in a Primary Side Regulation (PSR) power supply, some primary current pulses are used to forward bias an output diode such that an auxiliary winding voltage can be properly sampled after each pulse. The samples are used to regulate the power suppl... | 12/13/2011 |
| 8062941 | ESD protection transistor An electrostatic discharge (ESD) transistor structure includes a self-aligned outrigger less than 0.4 microns from a gate electrode that is 50 microns wide. The outrigger is fabricated on ordinary logic transistors of an integrated circuit without severely affecting... | 11/22/2011 |
| 8059429 | Using output drop detection pulses to achieve fast transient response from a low-power mode In a first aspect, in a Primary Side Regulation (PSR) power supply, some primary current pulses are used to forward bias an output diode such that an auxiliary winding voltage can be properly sampled after each pulse. The samples are used to regulate the power suppl... | 11/15/2011 |
| 8058893 | Frequency trimming for internal oscillator for test-time reduction An internal precision oscillator (IPO) is trimmed within a microcontroller integrated circuit. The microcontroller integrated circuit receives a test program into flash memory on the microcontroller integrated circuit from a tester. The microcontroller integrated ci... | 11/15/2011 |
| 8058858 | High efficiency voltage regulator with auto power-save mode A DC-to-DC converter comprises an error amplifier, a comparator, a PWM controller, a power switch unit, and a control signal monitoring circuit. The PWM controller receives a comparison signal from the comparator and generates a digital control signal that controls ... | 11/15/2011 |
| 8056159 | Mattress supporting system A folding mattress support system replaces both a conventional box spring and the bed frame with rails. The mattress support system is lighter, quieter and easier to transport, and also provides more storage space beneath the mattress. The mattress support system in... | 11/15/2011 |
| 8045344 | Regulating output current from a primary side power converter by clamping an error signal An inductor current flows through an inductor of a flyback converter. In a constant voltage mode, the pulse width of an inductor switch control signal is adjusted to maintain a constant output voltage of the flyback converter. The inductor switch control signal cont... | 10/25/2011 |
| 8040699 | Secondary side constant voltage and constant current controller A low-cost integrated circuit is used as a secondary side constant voltage and constant current controller. The integrated circuit has four terminals and two amplifier circuits. A first amplifier circuit is used to sense a voltage on a FB terminal and in response to... | 10/18/2011 |
| 8030867 | Sample and hold time stamp for sensing zero crossing of back electromotive force in 3-phase brushless DC motors A microcontroller determines the position of the rotor of a brushless, direct-current motor by determining the time of zero crossing of back electromotive force (EMF) emanating from the non-driven phase winding. The zero crossing point is determined by interpolating... | 10/04/2011 |
| 8019134 | Automatic image analysis and quantification for fluorescence in situ hybridization An analysis system automatically analyzes and counts fluorescence signals present in biopsy tissue marked using Fluorescence in situ Hybridization (FISH). The user of the system specifies classes of a class network and process steps of a process hierarchy. Then pixe... | 09/13/2011 |
| 8018741 | Adjusting for conductor loss to regulate constant output voltage in a primary feedback converter A lower-cost and more precise control methodology of regulating the output voltage of a flyback converter from the primary side is provided, which works accurately in either continuous voltage mode (CCM) and discontinuous mode (DCM), and can be applied to most small... | 09/13/2011 |
| 8018562 | LCD display element and LCD display panel An LCD display element is provided that achieves a uniform LCD display panel by arranging individual LCD display elements side-by-side. The margin areas outside of the viewing field in the vicinity of the left and the right lateral edges of the LCD display element a... | 09/13/2011 |
| 8017475 | Process to improve high-performance capacitors in integrated MOS technologies A method of fabricating a high-performance capacitor that may be incorporated into a standard CMOS fabrication process suitable for submicron devices is described. The parameters used in the standard CMOS process may be maintained, particularly for the definition an... | 09/13/2011 |
| 8014217 | Serially loading programming information into a PSR CC/CV controller integrated circuit A primary-side regulation (PSR) controller integrated circuit includes a PSR CC/CV controller and a non-volatile shift register. An assembled power supply that includes the integrated circuit is in-circuit tested to determine errors in power supply output voltage an... | 09/06/2011 |
| 8006330 | Sturdy, collapsible, telescoping bed frame A collapsible bed frame that supports a box spring includes side rails and telescoping cross rails. A first hinge connects upper and lower portions of a first side rail that are each at least 35 inches long. A first portion of a cross rail telescopes inside a second... | 08/30/2011 |
| 8006329 | Mattress-supporting base A mattress-supporting base includes three mattress support portions, multiple crossbars and a baseboard. Each of the mattress support portions has a first end and a second end. The first end of each mattress support portion connects to the first ends of the other tw... | 08/30/2011 |
| 8004389 | Relaying key code signals through a remote control device Upon receiving a keystroke indicator signal from a remote control device, a key code generator device identifies a codeset usable to communicate with a selected consumer device. The keystroke indicator signal contains an indication of a pressed key, which correspond... | 08/23/2011 |
| 8000350 | Reducing bandwidth of a data stream transmitted via a digital multimedia link without losing data A system for reducing the bandwidth of a data stream transmitted via a digital multimedia link does not result in the loss of data. The system encodes control signals such that control words are generated each time the status of the control signals change. The syste... | 08/16/2011 |
| 7978558 | In-circuit programming of output voltage and output current characteristics of a PSR power supply A primary-side regulation (PSR) controller integrated circuit includes a PSR CC/CV controller and a non-volatile shift register. An assembled power supply that includes the integrated circuit is in-circuit tested to determine errors in power supply output voltage an... | 07/12/2011 |
| 7978484 | Flyback constant voltage converter having both a PWFM mode and a PWM mode A flyback AC/DC switching converter has a constant voltage (CV) mode. The CV mode has sub-modes. In one sub-mode (“mid output power sub-mode”), the output voltage (VOUT) of the converter is regulated using both pulse width modulation and pulse frequency modulati... | 07/12/2011 |
| 7969753 | Maintaining a constant output voltage by sampling and holding a voltage across an auxiliary winding A lower-cost and more precise control methodology of regulating the output voltage of a flyback converter from the primary side is provided, which works accurately in either continuous voltage mode (CCM) and discontinuous mode (DCM), and can be applied to most small... | 06/28/2011 |
| 7962041 | IrDA transceiver module that also functions as remote control IR transmitter The infrared LED of an IrDA module transmits IR energy with a peak wavelength (for example, 875 nm) appropriate for IrDA communication. This peak wavelength is lower than is the wavelength (for example, 940 nm) used in ordinary IR remote controls (RC). The IrDA LED ... | 06/14/2011 |
| 7961483 | Constant current and voltage controller in a small package with dual-use pin A comparing circuit and a control loop are used to maintain the peak level of current flowing through an inductor of a flyback converter. An inductor switch control signal controls an inductor switch through which the inductor current flows. The inductor current inc... | 06/14/2011 |
