Patent application number | Description | Published |
20150021390 | KEY VERIFICATION OF REPLACEABLE FUEL CARTRIDGES - Verifying authenticity of a hydrogen fuel canister by utilizing at least one unique identifier element (UIE) associated with a fuel canister; inputting the UIE into a communication device; querying a database with said communication device to determine a value for the UIE; placing a hole matrix on a canister into a matrix interface reader; measuring a value associated with the position of one or more movable fixtures in the matrix interface reader; comparing the value obtain via the matrix interface reader with the value associated with the UIE and, using the comparison to authenticate or not authenticate if the hydrogen in said canister may be used, is disclosed. | 01-22-2015 |
20150041354 | AUTHENTICATION OF REPLACEABLE FUEL CARTRIDGE - The within disclosure provides devices, methods and systems for use in authenticating hydrogen fuel tanks or cartridges utilizing unique identifier elements, physical conformations and combinations of same. A user may place a hydrogen cartridge with a hollow body and a shaped body and/or dispensing end in a carriage having a fluid communication means and said fluid communication means matching said shaped body and/or dispensing end, whereby a tank mating to the carriage is limited to matching shaped cartridge and carriage. | 02-12-2015 |
20150093667 | VERIFICATION OF REPLACEABLE FUEL CARTRIDGES FOR FUEL CELL POWER SYSTEMS - A hydrogen cartridge with a dispensing end, said cartridge having unique identification associated therewith is disclosed, said cartridge providing a supply of hydrogen and being removably fitted to a host device. Prior to use in said host device, the unique identifier is input into a communications device which, through a network, contacts a secure database with records of authentic unique identifiers. Said secure database may require verification of a user and/or a communication device prior to granting access. The host device also has a communications link whereby one of the database and the communications device may provide authorization to a host device, including but not limited to a controller, to utilize the hydrogen in the canister associated with a specific unique identifier. | 04-02-2015 |
Patent application number | Description | Published |
20090108917 | METHODS AND APPARATUS TO PRODUCE FULLY ISOLATED NPN-BASED BANDGAP REFERENCE - Methods and apparatus to produce fully isolated NPN-based bandgap references are disclosed. A disclosed method to form a bandgap reference comprises generating a first current that is proportional-to-temperature, generating a second current that is complementary-to-temperature, and adding the currents to form a third current that is constant over a change in temperature. | 04-30-2009 |
20090108918 | METHODS AND APPARATUS TO SENSE A PTAT REFERENCE IN A FULLY ISOLATED NPN-BASED BANDGAP REFERENCE - Methods and apparatus for a PTAT reference in a fully isolated NPN-based bandgap references are disclosed. A disclosed method to form a bandgap reference comprises generating a first current that is constant over a change in temperature, generating a second current that is complementary-to-temperature, and generating a current that is proportional-to-temperature. | 04-30-2009 |
20090110027 | METHODS AND APPARATUS FOR A FULLY ISOLATED NPN BASED TEMPERATURE DETECTOR - Methods and apparatus for a fully isolated NPN-based temperature detector are disclosed. A disclosed method to determine the temperature of a circuit comprises generating a first current that increases as temperature increases, generating a second current that decreases as temperature increases, and detecting the temperature by receiving a first and second signal based on the first and second currents to determine whether the temperature exceeds at least one temperature threshold. | 04-30-2009 |
20100148857 | METHODS AND APPARATUS FOR LOW-VOLTAGE BIAS CURRENT AND BIAS VOLTAGE GENERATION - Methods and apparatus for low-voltage bias current and bias voltage generation are disclosed. An example bias signal generation circuit disclosed herein comprises a first amplifier stage, an output amplifier stage electrically coupled with the first amplifier stage, the first amplifier stage and the output amplifier stage configured to generate an output bias signal, the output amplifier stage configured to provide the output bias signal, a low impedance circuit electrically coupled with the output amplifier stage, the low impedance circuit configured to reduce an impedance of the output amplifier stage, and a current source electrically coupled with the low impedance circuit, the current source configured to drive the low impedance circuit to reduce loading of the output amplifier stage by the low impedance circuit. | 06-17-2010 |
20100156477 | BANDGAP REFERENCED POWER ON RESET (POR) CIRCUIT WITH IMPROVED AREA AND POWER PERFORMANCE - In an apparatus for monitoring a supply voltage, a current mirror coupled to the supply voltage provides a pair of matching currents. A resistor divider that includes a first resistor coupled in series with a second resistor to from a first node is disposed between the supply voltage and a voltage reference. A pair of transistors that have their bases coupled to the first node are coupled to receive a corresponding one of the pair of matching currents. A collector of a first transistor of the pair of transistors provides an output voltage in response to the supply voltage. A third resistor is disposed between an emitter of a second transistor of the pair of transistors and the voltage reference. A base and a collector of a third transistor are coupled to the first node and an emitter is coupled to the voltage reference. | 06-24-2010 |
Patent application number | Description | Published |
20120230087 | SRAM CIRCUITS FOR CIRCUIT IDENTIFICATION USING A DIGITAL FINGERPRINT - Circuitry that includes static random access memory (SRAM) access circuitry and a group of SRAM memory cells is disclosed. A digital fingerprint of the group of SRAM memory cells is determined by using the SRAM access circuitry to force at least a portion of the group of SRAM memory cells into a metastable state and then releasing the portion of the SRAM memory cells. Each SRAM memory cell that was released then selects one of two stable states and the SRAM access circuitry provides a selection profile based on the selections. The digital fingerprint is based on the selection profile. | 09-13-2012 |
20150089329 | ELECTRONIC CIRCUIT FOR FITTING A VIRTUAL ADDRESS RANGE TO A PHYSICAL MEMORY CONTAINING FAULTY ADDRESS - A memory having variable size blocks of failed memory addresses is connected to a TCAM storing data values of ranges of addresses in the memory. The ranges of addresses correspond to virtual addresses that, in combination with an offset, point away from failed memory addresses. A reduction circuit connected to the TCAM produces an output for each programmed range of addresses based on a virtual address. A priority encoder, connected to the reduction circuit, selects a first range from the reduction circuit and passes the first range to a random-access memory (RAM). Responsive to the virtual address bring an address in one of the ranges of addresses, the priority encoder passes the first range containing the virtual address to the RAM, which passes a corresponding offset value to the Adder based on the first range. The Adder calculates a physical memory address directing the virtual address to a functional memory location. | 03-26-2015 |
20150163211 | UNCLONABLE ID BASED CHIP-TO-CHIP COMMUNICATION - A first copy of an intrinsic ID of a first node may be stored on a second node. The first node may receive a challenge that causes it to generate a second copy of its intrinsic ID. The second copy and a random value may be used as inputs of a function to generate a first code. The first code is transmitted to the second node. The second node decodes the first code using its local copies of the random value and/or the intrinsic ID. The second node checks the decoded information against its local information and authenticates the first node if there is a match. | 06-11-2015 |
20150347592 | HIERARCHICAL IN-MEMORY SORT ENGINE - A local sorting module includes a set of storage elements storing binary vectors configured in a one-dimensional (1D) or two-dimensional (2D) array structure and separated by respective comparators configured to conditionally compare and sort the binary vectors. The comparators may perform a sort using a compare-and-flip or a compare-and-swap operation. Local sorting modules may be coupled with a global sorting module for enabling a tournament sort algorithm to output values stored in storage elements one at a time until all data is outputted in a predetermined sorting order. | 12-03-2015 |
20150363517 | TECHNIQUES FOR GENERATING PHYSICAL LAYOUTS OF IN SILICO MULTI MODE INTEGRATED CIRCUITS - This disclosure relates generally to computerized systems and methods of producing a physical representation of an in silico Integrated Circuit (IC) having an in silico Multi-Mode Redundant (MMR) pipeline circuit. An IC layout of the in silico IC is initially generated with the electronic design automation (EDA) program. Multi-Mode Redundant Self-Correcting Sequential State Element (MMRSCSSE) layouts are then rendered immotile while initial redundant Combinational Logic Circuit (CLC) layouts are removed from the IC layout after the MMRSCSSE layouts have been rendered immotile. By first placing the MMRSCSSE layouts and then rendering them immotile, the remaining logic can be placed again and optimized without compromising critical node spacing. As such, the described method provides for a more efficient way to create the IC layout of the in silico IC while maintaining critical node spacing. | 12-17-2015 |
20160085702 | HIERARCHICAL IN-MEMORY SORT ENGINE - A local sorting module includes a set of storage elements storing binary vectors configured in a one-dimensional (1D) or two-dimensional (2D) array structure and separated by respective comparators configured to conditionally compare and sort the binary vectors. The comparators may perform a sort using a compare-and-flip or a compare-and-swap operation. Local sorting modules may be coupled with a global sorting module for enabling a tournament sort algorithm to output values stored in storage elements one at a time until all data is outputted in a predetermined sorting order. | 03-24-2016 |
Patent application number | Description | Published |
20110095485 | METAL-TO-METAL SEAL WITH RETENTION DEVICE - A downhole tool includes a first portion having a first metal protrusion configured to seal against a first metal surface and a second portion having a second metal protrusion configured to seal against a second metal surface. A ratcheting device includes a first element having a plurality of grooves, and a second element having at least two sets of teeth, wherein one of the at least two sets of teeth engages the plurality of grooves. Additionally, a method of forming a downhole seal includes disposing in a wellbore a downhole tool including an inner tubular, a lock ring, a lower ring, an upper ring, an insert ring, and a deformable element. The method further includes moving a wedge sleeve axially downward with respect to the downhole tool such that the wedge sleeve engages the deformable ring and forces a first metal protrusion on the deformable element into contact with an outer tubular. | 04-28-2011 |
20120118559 | RCD SEALING ELEMENTS WITH MULTIPLE ELASTOMER MATERIALS - A sealing element for a rotating control device is disclosed, wherein the sealing element has an inner surface which forms a drillstring bore extending axially through the sealing element, an attachment end having a receiving cavity extending into the attachment end substantially parallel with the drillstring bore, a nose end opposite from the attachment end, wherein the nose end has an inner diameter smaller than the inner diameter of the attachment end, a throat region between the attachment end and the nose end, at least one soft elastomer region comprising a soft elastomer material having a hardness of 70 duro or less, and at least one stiff elastomer region comprising a stiff elastomer material having a hardness greater than 70 duro. | 05-17-2012 |
20140374163 | ACTUATING A DOWNHOLE TOOL - A downhole tool includes a body having a bore extending, at least partially therethrough. A component is disposed within the bore and arranged and designed to move axially from a first position to a second position within the bore. An axial end portion of the component has a first contact surface that is oriented at an angle from about 1° to about 45° with respect to a longitudinal axis extending through the component. | 12-25-2014 |
20160032710 | TOOL FOR MEASURING WELLBORE GEOMETRY - A downhole tool is disclosed for measuring wellbore geometry. The downhole tool may include a body with a bore extending at least partially therethrough. The body may include a radial recess. An arm may be movably coupled to the body at a first end portion of the arm. The arm may be within the radial recess in a retracted position and be pivotable in a radially-outward direction relative to the body to an expanded position. A measurement device coupled to the body may measure the pivoting motion of the arm. A piston coupled to the body may be movably coupled to a second end portion of the arm, and the piston may respond to changes in hydraulic pressure to pivot the arm between the retracted position and the expanded position. | 02-04-2016 |
Patent application number | Description | Published |
20100308909 | PA GAIN STATE SWITCHING BASED ON WAVEFORM LINEARITY - Techniques for optimizing the power consumption of existing low cost multi-gain state power amplifiers (PA) to increase the talk time of wireless communication devices are described. In an exemplary embodiment a device, such as a baseband processor, operates to set a multistage PA having at least two gain states for amplifying a transmit signal to a lowest power consuming gain state. The device calculates a transition power level as a function of an identified maximum power reduction (MPR) value and switches the PA to a higher gain state from a lower gain state when a transmission power level is higher than the calculated transition power level. | 12-09-2010 |
20110141930 | BASEBAND COMPENSATION FOR PHASE DISCONTINUITIES IN RADIO FREQUENCY COMMUNICATION DEVICES - A method for compensating for phase discontinuities on a communication device is described. A communication device may determine a desired output power. The communication device may determine a Digital-to-Analog Converter (DAC) gain corresponding to the desired output power. The communication device may determine a cumulative phase offset based on the DAC gain. The communication device may apply the DAC gain. The communication device may apply a phase compensation to a rotator to adjust for the cumulative phase offset. | 06-16-2011 |
20110199949 | METHOD AND APPARATUS FOR POWER CONTROL IN HIGH SPEED PACKET ACCESS (HSPA) NETWORKS - A wireless communication device includes: an antenna for receiving inbound signals on dual receive channels and transmitting outbound signals on dual transmit channels; a transceiver coupled to the antenna to receive the inbound signals from the antenna and convey the outbound signals; a power controller coupled to the transceiver to control power levels of the outbound signals so a maximum nominal power level of the outbound signals is a first power level; and a processor coupled to the transceiver and the antenna to cause the power controller to control the power levels of the outbound signals so if a power level of a received one of the inbound signals is below a threshold value, then the maximum nominal power level of the outbound signals is a second power level lower than the first power level, wherein the second power level is lower than the first power level. | 08-18-2011 |
20120230447 | WAVEFORM SCALING IN WIRELESS TRANSMITTERS - A wireless device for waveform scaling is disclosed. The wireless device includes a modulator that increases a magnitude of a peak digital code beyond a maximum available digital code for transmit power levels below a transmit power threshold to produce an adjusted digital code. The magnitude of the peak digital code is not increased beyond the maximum available digital code for transmit power levels above the transmit power threshold. The wireless device also includes a digital-to-analog converter that converts the adjusted digital code into an analog signal. | 09-13-2012 |
20120315961 | DEVICE FOR DERIVING A DYNAMIC VOLTAGE SCALING DATA PROFILE - A wireless communication device for deriving a dynamic voltage scaling data profile is described. The wireless communication device includes memory that includes a dynamic voltage scaling voice profile. The wireless communication device also includes a data profile determination module coupled to the memory. The data profile determination module obtains an offset and derives a dynamic voltage scaling data profile by offsetting the dynamic voltage scaling voice profile based on the offset. | 12-13-2012 |
20130033314 | POWER BASED FEEDBACK FOR IMPROVED POWER AMPLIFIER (PA) EFFICIENCY - A power train amplification stage is described. The power train amplification stage includes a power amplifier. The power train amplification stage also includes a switched mode power supply that provides a bias voltage to the power amplifier. The power train amplification stage further includes a pulse density modulator. The power train amplification stage also includes a feedback path from the power amplifier to the pulse density modulator. | 02-07-2013 |
20130257529 | CIRCUITRY FOR REDUCING POWER CONSUMPTION - Circuitry for reducing power consumption is described. The circuitry includes a power amplifier. The circuitry also includes a predistorter coupled to the power amplifier. The circuitry further includes a power supply coupled to the power amplifier. The circuitry additionally includes a controller coupled to the power amplifier, to the predistorter and to the power supply. The controller captures a transmit signal and a feedback signal concurrently and determines a minimum bias voltage from a set of voltages and a predistortion that enable the power amplifier to produce an amplified transmit signal in accordance with a requirement. | 10-03-2013 |
20140098906 | TRANSMIT DIVERSITY ARCHITECTURE WITH OPTIMIZED POWER CONSUMPTION AND AREA FOR UMTS & LTE SYSTEMS - A method and apparatus for providing total power from one transmit path. The method provides the steps of: selecting a transmit path and closing a first switch, located after a digital to analog converter. A second switch between the two transmit paths is then closed in order to provide for the use of at least one low-pass filter in each transmit path. The signal is then processed through the at least one low pass filter in each transmit path. The signal is then processed through at least one mixer in each transmit path. After the mixer, the signal is then processed through at least one driver amplifier in each transmit path, and one-half of the total power is allocated to each of two transmission paths. A third switch is then closed after the at least one power amplifier in each transmit path to force the half-power from one transmit path into one output. | 04-10-2014 |
20140171001 | RECEIVER CALIBRATION WITH LO SIGNAL FROM INACTIVE RECEIVER - Techniques for calibrating a receiver based on a local oscillator (LO) signal from another receiver are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) includes first and second local oscillator (LO) generators. The first LO generator generates a first LO signal used by a first receiver for frequency downconversion. The second LO generator generates a second LO signal used by a second receiver for frequency downconversion in a first operating mode. The second LO signal is used to generate a test signal for the first receiver in a second operating mode. The second LO signal may be provided as the test signal or may be amplitude modulated with a modulating signal to generate the test signal. The test signal may be used to calibrate residual sideband (RSB), second order input intercept point (IIP2), receive path gain, etc. | 06-19-2014 |