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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7436222 | Circuit and method for trimming integrated circuits A programmable after-package, on-chip reference voltage trim circuit for an integrated circuit having a plurality of programmable trim cells generating a programmed sequence. A converter is provided to convert the bit sequence into a trim current. The trim current i... | 10/14/2008 |
| 7425949 | Power supply for an LCD panel A power supply system is provided for a multiple lamp LCD panel. In one aspect, the power supply includes a plurality of transformers for driving a plurality of respective CCFLs. The primary sides of each transformer are coupled in series to thereby reduce the stres... | 09/16/2008 |
| 7412553 | Enhanced protocol conversion system capable of providing offloaded protocol instruction processing Systems are provided for the offloading of protocol control and conversion information within microprocessor-based systems. A converter controller comprises a first interface and protocol, as well as a second interface and protocol. An intermediate protocol and inte... | 08/12/2008 |
| 7409484 | Integrated circuit having reduced pin count A method according to one embodiment may include decoupling a CAUDIO/SPKR#/BVD2 signal line from a PC Card controller integrated circuit. The method of this embodiment may also include controlling, by the PC Card controller integrated circuit, at least one PC Card i... | 08/05/2008 |
| 7385795 | Cordless power tool with a protected weak link element A method consistent with an embodiment may include selecting one of a plurality of components of a power supply system of a cordless power tool to be a protected weak link element. The method may also include configuring the protected weak link element to fail from ... | 06/10/2008 |
| 7372213 | Lamp current balancing topologies A method according to on embodiment may include generating AC voltage and current and a striking voltage. The method of this embodiment may also include generating striking voltage and steady-state voltage for at least two lamp loads. The method of this embodiment m... | 05/13/2008 |
| 7365995 | Power converter A power converter may include a transformer having a primary winding and a secondary winding. A first high side switch and a first low side switch may be coupled in series along a first path of a full bridge circuit, having a first node between the first high side s... | 04/29/2008 |
| 7365454 | Enhanced power switch device enabling modular USB PC cards An enhanced power switch device is provided for enabling modular USB PC cards. The enhanced power switch may include a card sense circuit for sensing the type of card present, a card power switching circuit for supplying power to a modular USB card, and isolation ci... | 04/29/2008 |
| 7348760 | Power management topologies A wake up circuit according to one embodiment includes a comparison circuit and an output decision circuit. The comparison circuit may be adapted to receive a first signal representative of a charging current level provided to a battery via a path and a second signa... | 03/25/2008 |
| 7343498 | ExpressCard power switch device with enhanced communications paths and security functions A method according to one embodiment includes receiving at least one ExpressCard module power management signal and controlling the passing of at least one ExpressCard power management signal to a host computer system, based on, at least in part, at least one signal... | 03/11/2008 |
| 7319346 | Circuit and method for trimming integrated circuits A programmable after-package, on-chip reference voltage trim circuit for an integrated circuit having a plurality of programmable trim cells generating a programmed sequence. A converter is provided to convert the bit sequence into a trim current. The trim current i... | 01/15/2008 |
| 7309021 | Dual mode controller for ISO7816 and USB enabled smart cards A dual mode smart card controller is provided. In one embodiment, a USB and ISO7816 smart card controller is provided that determines the type of card that is inserted into a slot. If the smart card is a USB smart card, the controller is adapted to pass control of t... | 12/18/2007 |
| 7304866 | System and method for power converter switch control A power converter includes a transformer having a primary winding and a secondary winding, and a plurality of switches coupled to the primary and secondary winding, the plurality of switches responsive to at least one control signal to short both the primary and sec... | 12/04/2007 |
| 7292946 | Integrated PC card host controller for the detection and operation of a plurality of expansion cards A controller includes a plurality of readers for reading an associated plurality of expansion cards and for controlling operation of such expansion cards, wherein at least one of the plurality of readers is a flash media reader. A method for controlling the operatio... | 11/06/2007 |
| 7268520 | Sense amplifier for use with wake-up charging current A sense amplifier adapted to amplify a voltage signal representative of a charging current provided to a rechargeable battery. The sense amplifier may include a p-type input sense amplifier and an n-type input sense amplifier, The p-type input sense amplifier may be... | 09/11/2007 |
| 7242598 | DC-to-DC converter with improved transient response A DC to DC converter includes a comparator, a driver, and a pair of switches. The comparator compares the output voltage with a reference voltage signal and generates a PWM signal. The driver drives the switches so as to force the output voltage to follow the refere... | 07/10/2007 |
| 7233117 | Inverter controller with feed-forward compensation The present invention is an inverter controller with feed-forward compensation. The inverter controller includes an error amplifier, a high frequency oscillator (HFOSC) with feed-forward compensation, a comparator, and a driver. The error amplifier can output a sign... | 06/19/2007 |
| 7202650 | Controller for DC to DC converter A DC to DC converter to convert an input voltage to an output voltage. The DC to DC converter may include a pair of switches including a high side switch and a low side switch, an inductor coupled to the pair of switches; and a controller. The controller may be conf... | 04/10/2007 |
| 7202634 | Voltage mode, high accuracy battery charger A circuit for controlling a charging parameter provided to a rechargeable battery. The circuit includes a power control circuit configured to provide a power control signal representative of a power output level of a DC source, and a control signal generating circui... | 04/10/2007 |
| 7065591 | Reconfigurable flash media reader system A reconfigurable flash media reader system provides a flash media reader that accepts both asynchronous and synchronous flash media cards. The reader identifies the card type of the inserted flash media card and notifies the host computer of the card type. The host ... | 06/20/2006 |
