Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Farshid

Farshid Arman, Lafayette, CA US

Patent application numberDescriptionPublished
20100012499FUEL CELL CHARGER - A method and apparatus is described for recharging a fuel used to produce hydrogen for a hydrogen consuming device. The fuel can be NaBH01-21-2010

Patent applications by Farshid Arman, Lafayette, CA US

Farshid Aryanfar, Lake Zurich, IL US

Patent application numberDescriptionPublished
20080267056METHOD AND APPARATUS FOR PERFORMING MULTI-ANTENNA TRANSMISSION - A method and apparatus for performing beamforming are provided herein. During operation, a mobile device will notify a base station of the situation in which one or more of its antennas has become unusable. Using this technique, the Multiple Input, Multiple Output (MIMO) algorithms employed at the base station will be adjusted accordingly.10-30-2008
20100296564METHOD AND APPARATUS FOR PERFORMING MULTI-ANTENNA TRANSMISSION - A method and apparatus for performing beamforming are provided herein. During operation, a mobile device will notify a base station of the situation in which one or more of its antennas has become unusable. Using this technique, the Multiple Input, Multiple Output (MIMO) algorithms employed at the base station will be adjusted accordingly.11-25-2010

Farshid Aryanfar, Sunnyvale, CA US

Patent application numberDescriptionPublished
20110090100TRANSFORMING SIGNALS USING PASSIVE CIRCUITS - Passive signal combiners are employed to transform at least one signal from one domain to another. In some aspects the transformation comprises an NFL an IFFT, a DFT, or an IDFT. In some implementations the passive signal combiners comprise a set of planar waveguides (e.g., which may be referred to as beamformers or Rotman lenses) that have multiple inputs and outputs and are configured to provide orthogonal output signals. In some implementations an electrical signal (e.g., received via an antenna element) is coupled to passive beamformers that transform the electrical signal from one domain to another domain. Here, a transformation of the electrical signal by a given passive beamformer may have a first resolution, and outputs from the passive beamformers may correspond to orthogonal groups. A combiner circuit may be used to combine the outputs from the passive beamformers and produce a combined output having a second resolution and an associated error. In some aspects, this error may be less than a cumulative error associated with the passive beamformers if a single passive beamformer was instead employed to transform the electrical signal at the second resolution. Also, by using at least partially different bandwidths for components in the circuits, a higher effective bandwidth for the transformation may be achieved.04-21-2011
20110228864RESONANCE MITIGATION FOR HIGH-SPEED SIGNALING - The frequency response of a first component signal path of a differential signaling link is adjusted to off-set a notch in the frequency response from a corresponding notch in the frequency response of a second component signal path of the differential signaling link.09-22-2011

Farshid Bakhtyari, Newton, MA US

Patent application numberDescriptionPublished
20100028758Suppression of battery thermal runaway - Thermal runaway in battery packs is suppressed by inserting packages of hydrated hydrogel at physical interfaces between groups of one or more cells. The hydrogel acts to diffuse and absorb thermal energy released by the cells in the event of a cell failure. During extreme overheating of a battery cell, the water stored by the hydrogel will undergo phase change, that is, begin to vaporize, thus absorbing large amounts of thermal energy and preventing thermal runaway.02-04-2010

Farshid Delgosha, Glen Cove, NY US

Patent application numberDescriptionPublished
20090010428Asymmetric cryptosystem employing paraunitary matrices - Disclosed are multivariate paraunitary asymmetric cryptographic systems and methods that are based on paraunitary matrices. An algebraic approach is employed in designing the multivariate cryptographic systems and methods. The cryptographic systems and methods are based on formulating a general system of multivariate polynomial equations by paraunitary matrices. These matrices are a family of invertible polynomial matrices that can be completely parameterized and efficiently generated by primitive building blocks. Using a general formulation that involves paraunitary matrices, a one-way function is designed that operates over the fields of characteristic two. To include a trapdoor, approximations are made to the paraunitary matrix. The result is a trapdoor one-way function that is efficient to evaluate, but hard to invert unless secret information about the trapdoor is known. An exemplary implementation operates on the finite field GF(256). In this example, the message block includes 16 to 32 symbols from GF(256), i.e., the block size n is an integer between 16 and 32. The ciphertext block takes its elements from the same field and has at least 10 extra symbols.01-08-2009

Farshid Farazmandnia, Irvine, CA US

Patent application numberDescriptionPublished
20080261626Method and system for transmitting a location of a mobile communication device - There is provided a method for use by a mobile communication device for transmitting a location of the mobile communication device over a network using a protocol stack. In one embodiment, location data indicating the location of the mobile communication device is received. The location data can include, for example, Global Positioning System (“GPS”) coordinates. Thereafter a command for initiating transmission of the location data is received from a user. Then a delivery destination is received from the user. The delivery destination can be, for example, a telephone number of a cellular telephone. The location data is then provided to the protocol stack. A Short Message Service (“SMS”) message including said location data is then generated. The SMS message is then transmitted to the delivery destination.10-23-2008

Farshid Forouzbakhsh, Tehran IR

Patent application numberDescriptionPublished
20100096022Safety shutoff valve - It is disclosed a shut-off valve which acts automatically and has a fully mechanical performance with respect to the loosing of the tower-shape part balance under the effect of the special acceleration which is arisen from the quakes waves or serious vibrations, while such vibrations are mainly resulted from collision or effusion. A static tower has been applied for the main core of this part of the valve which loses balance state under the effect of collision and bounces to the neighboring part, which results in release of the catch and blockage of the gas passing channel.04-22-2010

Farshid Ghasemzadeh, Sollentuna SE

Patent application numberDescriptionPublished
20090310492Method and Apparatus for Testing Mobile Terminals in an OFDM System - The present invention relates to a method and apparatus for testing mobile terminals in an OFDMA system, in which all or part of available downlink radio resources in a cell are transmitted. A processing unit in a test apparatus splits the resources used for transmission into contiguous unities in the frequency domain such that one or more of said unities comprise resources allocated to one or more mobile terminals under test, and at least one of said unities comprise resources allocated to virtual users.12-17-2009
20090312056Relative Frequency Error Compensation for Multi-Carrier Receivers - A wireless receiver utilizes a single analog oscillator to down-convert multi-carrier signals in one or more receiver front-end paths. The received signals are digitized, and the different carrier signals received at each antenna are separated in digital domain by mixing the digitized signal from each antenna with a carrier/antenna separation digital oscillator to down-convert a desired carrier signal and low-pass filtering to remove unwanted carriers. A coarse frequency correction adjusts the analog oscillator, and fine frequency corrections adjust digital oscillators mixing with the separated signals. In one embodiment, the fine frequency correction is applied to the carrier/antenna separation digital oscillators in the separation function. In another embodiment, the fine frequency correction is applied to frequency adjustment digital oscillators mixing with the separated signals. The frequency corrections may be based on reference symbols in the received signals.12-17-2009
20100118836Method and Arrangement in a Telecommunication System - The present invention relates to a method for sending reserved sub-carriers to a UE for the purpose of reducing peak to average power ratio (PAPR) of the transmitted signal to ensure sufficient quality of the modulated signal to achieve high data rate, including the steps of sending the information related to dynamic activation and deactivation of reserved sub-carriers on a common channel, which is readable for all UEs in idle and in connected mode; dynamically activating the transmission of the reserved sub-carriers in a cell when high modulation quality is to be maintained; dynamically deactivating the transmission of the reserved sub-carriers in a cell when high modulation quality is not required. The invention furthermore relates to a radio base station and a UE relating to said method.05-13-2010
20100178921Interference Avoidance In A WCDMA System - A method for a cellular system comprising base stations of a first and a second kind, which control cells of a first and second kinds, and a control function for the base station of the first kind. The control function maintains a list of cells in the vicinity of the first cell, a Neighbour Cell list, and a UE in the first cell measures transmissions from Neighbour Cells and reports them, and said UE makes Detected Set, DS, measurements, and reports them to the control function. The control function searches DS measurement reports for cells of the second kind, and if a cell of the second kind is found, a hand over of the UE is initiated, to prevent transmissions from the UE to cause interference in the base station of the second kind.07-15-2010
20110205106Power Control for Home Base Station with GNSS Receiver - Embodiments herein include a method and a network node in a wireless communications network for controlling a maximum output power of the network node. The network node comprises a Global Navigation Satellite System (GNSS) receiver. The GNSS receiver receives signals from the GNSS. The method comprises determining whether a GNSS signal transmitted from the GNSS is considered detectable. If the GNSS signal is considered detectable, the method includes determining whether the GNSS signal is received directly from the GNSS or via a GNSS repeater. The method further includes selecting a power control method for controlling the maximum output power of the network node, based on at least one of the determination of whether the GNSS signal is considered detectable, and the determination of whether the GNSS signal is received directly from the GNSS or via the GNSS repeater.08-25-2011

Patent applications by Farshid Ghasemzadeh, Sollentuna SE

Farshid Guilak, Durham, NC US

Patent application numberDescriptionPublished
20090196901Tissue Engineering Methods and Compositions - The presently disclosed subject matter generally relates to methods and systems for facilitating the growth and differentiation of adipose-derived stem cells for laboratory and therapeutic applications. The cells can be employed alone or in conjunction with unique biologically-compatible scaffold structures to generate differentiated tissues and structures, both in vitro and in vivo. The presently disclosed subject matter further relates to methods of forming and using improved tissue engineered scaffolds that can be used as substrates to facilitate the growth and differentiation of cells.08-06-2009

Patent applications by Farshid Guilak, Durham, NC US

Farshid Karimi Mostowfi, Edmonton CA

Patent application numberDescriptionPublished
20090243635ANALYSIS OF THIN LIQUID FILMS - A novel microfluidic device has been developed to measure stability of thin liquid films of water in oil emulsions using electrochemical perturbation of interfaces. This new device can be utilized in rapid classification of de-emulsifiers used in petroleum industries. Although water/crude oil emulsions have been the primary focus of this research, this measurement platform can be used in other industries such as food, cosmetics and bio-engineering (bilayer lipid membranes) as well as environmental remediation of oil spills. The compact design of the device and replacement of the mechanical measurements such as pressure with electrical signal measurements contributes in substantial size reduction of the experimental platform so that it can be employed for onsite measurements in remote areas.10-01-2009

Farshid Mostowfi, Edmonton CA

Patent application numberDescriptionPublished
20090326827PHASE BEHAVOIR ANALYSIS USING A MICROFLUIDIC PLATFORM - Methods and related systems are described for analyzing phase properties in a microfluidic device. A fluid is introduced under pressure into microchannel, and phase states of the fluid are optically detected at a number of locations along the microchannel. Gas and liquid phases of the fluid are distinguished based on a plurality of digital images of the fluid in the microchannel. Bi-level images can be generated based on the digital images, and the fraction of liquid or gas in the fluid can be estimated versus pressure based on the bi-level images. Properties such as bubble point values and/or a phase volume distribution ratio versus pressure for the fluid are can be estimated based on the detected phase states of the fluid.12-31-2009
20100017135PRESSURE MEASUREMENT OF A RESERVOIR FLUID IN A MICROFLUIDIC DEVICE - Methods and related systems are described for measuring fluid pressure in a microchannel. A number of flexible membranes are positioned at locations along the microchannel such that pressure of the fluid in the microchannel causes a deformation of the membranes. An optical sensing system adapted and positioned to detect deformation of the membranes that thereby determine the pressure of the fluid flowing in the microchannel at a number of locations along the microchannel.01-21-2010
20110030466Microfluidic Apparatus and Method for Measuring Thermo-Physical Properties of a Reservoir Fluid - A microfluidic apparatus for measuring thermo-physical properties of a reservoir fluid includes a first substrate defining a microchannel, an entrance well, and an exit well. The microchannel extends between and is in fluid communication with the entrance well and the exit well. The apparatus further includes a second substrate attached to the first substrate to form a microfluidic device. The second substrate defines an entrance passageway in fluid communication with the entrance well and an exit passageway in fluid communication with the exit well. The entrance passageway is configured to receive the reservoir fluid under pressure. A method of measuring thermo-physical properties of a reservoir fluid includes introducing the fluid under pressure into a microchannel and determining the thermo-physical properties of the fluid based upon the size and concentration of the bubbles formed as the fluid flows through the microchannel.02-10-2011
20110292382SYSTEM AND METHOD FOR DETERMINING THE ASPHALTENE CONTENT OF CRUDE OIL - A system for determining the asphaltene content of crude oil includes a first optical flow cell, a first spectrometer operably associated with the first optical flow cell, and a mixer in fluid communication with the first optical flow cell. The system further includes a crude oil injection/metering device configured to receive the crude oil, the crude oil injection/metering device being in fluid communication with the first optical flow cell; a titrant injection/metering device in fluid communication with the mixer, the titrant injection/metering device configured to receive a titrant; and a filtration unit in fluid communication with the mixer. The system further includes a second optical flow cell in fluid communication with the filtration unit, and a second spectrometer operably associated with the second optical flow cell.12-01-2011
20110307186System and Method for Determining the Phase Envelope of a Gas Condensate - A system for determining the phase envelope of a gas condensate includes a microfluidic device defining an entrance passageway, an exit passageway, and a microchannel in fluid communication with the passageways. The system includes an input sample bottle in fluid communication with the entrance passageway and a first pump associated with the input sample bottle for urging the gas condensate, in the input sample bottle, into the entrance passageway. The system further comprises an output sample bottle in fluid communication with the exit passageway and a second pump associated with the output sample bottle for pressurizing the gas condensate, in the output sample bottle, into the exit passageway in opposition to the first pump. The system comprises a temperature control device for controlling the temperature of the gas condensate in the microchannel. The first pump and the second pump operate to provide a desired pressure drop across the microchannel.12-15-2011

Patent applications by Farshid Mostowfi, Edmonton CA

Farshid Nowshadi, Harston GB

Patent application numberDescriptionPublished
20110164710TRANSMISSION TIMING ADJUSTMENT IN RADIO SYSTEMS - A method of adjusting the transmission time of a signal in a radio link, the method being performed by a transmitter configured to transmit the signal over the radio link to a receiver and comprising the steps of ascertaining an accuracy that the receiver assumes for the transmitter's clock, calculating an assumed drift of the transmitter's clock based on the assumed accuracy of that clock and the time since a previous correlation between the transmitter's clock and the receiver's clock; and transmitting the signal at a time dependent on the assumed drift.07-07-2011

Farshid Roumi, Irvine, CA US

Patent application numberDescriptionPublished
20120077095Electrochemical Energy Storage Systems and Methods - A three-dimensional electrode array for use in electrochemical cells, fuel cells, capacitors, supercapacitors, flow batteries, metal-air batteries and semi-solid batteries.03-29-2012

Farshid Sabet-Sharghi, San Jose, CA US

Patent application numberDescriptionPublished
20110191600System, Method and device for playing back recorded audio, video or other content from non-volatile memory cards, compact disks, or other media - A secure software package for original equipment manufacturers to run in electronic devices in order to access and dynamically decrypt encrypted audio video or other content from a memory storage device such as a memory card, optical or hard disk such that the user interface of the device need only send simple commands and the decrypted content is output.08-04-2011

Farshid Sabet-Sharghi, Los Altos Hill, CA US

Patent application numberDescriptionPublished
20090043984METHOD FOR MANAGING PARTITIONS IN A STORAGE DEVICE - A method for re-allocating memory partition space is provided. The method comprises determining when a first memory partition is full or has reached a threshold value, determining that a second memory partition has unused storage space that can be allocated to the first memory partition, and assigning the unused storage space from the second memory partition to the first memory partition. A memory controller embedded within the mass storage device and having an interface to an external host assigns the unused storage space from the second memory partition to the first memory partition.02-12-2009

Farshid Sabet-Shargi, Los Altos Hill, CA US

Patent application numberDescriptionPublished
20100205457Portable Mass Storage Device with Virtual Machine Activation - A portable mass storage device is used to store large files such as digital pictures, movies and music. The mass storage device has firmware with security mechanisms that limit access to read write operations to ensure reliable operation of the device to prevent unwanted copying or storing of secure content such a copyrighted material. Although the security mechanisms generally limit access, the firmware is operable to work with a virtual machine and allows the virtual machine to access the secure content and work in conjunction with the firmware to read and write data to the mass storage memory, if the virtual machine is present. The virtual machine is either loaded but not activated at the time of manufacture, or is downloaded and activated post manufacture. Any royalty for the virtual machine is paid for only if and when the virtual machine is both present and activated in the device.08-12-2010

Farshid Sepehri, Bethesda, MD US

Patent application numberDescriptionPublished
20090212151Yarn holding device - A yarn holding device is provided for holding and carrying a spool or skein of yarn by a person while knitting and/or crocheting. The device can hang downwardly from the arm or hand of the person while providing a supply of yarn to the person while knitting. The device has a handle in the form of a ring that can hang from the arm of the person. A shaft extends from the ring with a length to carry the skein of yarn. A sleeve in mounted on the shaft and carries the yarn during use. The sleeve is rotatable on the shaft to feed the yarn. A removable base is coupled to the bottom end of the shaft for removing the sleeve from the shaft and for positioning the sleeve with the yarn of the shaft. An eyelet is provided on the ring to feed the yarn from the skein to the person during use.08-27-2009

Farshid Tafazoli Bilandi, Vancouver CA

Patent application numberDescriptionPublished
20100110185Method, system and apparatus for monitoring loading of a payload into a load carrying container - A method, apparatus and system for monitoring loading of a payload into a load carrying container is disclosed. The method involves acquiring at least one image of a load transfer container during operation of the load transfer container by a first operator to load the payload into the load carrying container, and wirelessly transmitting an image signal representing the at least one image. The method also involves receiving the image signal and producing a display signal for causing the at least one image to be displayed for viewing by a second operator to facilitate monitoring of the loading of the payload.05-06-2010

Farshid Tofigh, Mission Viejo, CA US

Patent application numberDescriptionPublished
20090128979SYSTEM AND METHOD FOR PROTECTING A COIL STRUCTURE IN A CONTROLLED SWITCH - A system and method for protecting a coil structure in a controlled switch. In one embodiment, the invention relates to a circuit including at least one load switch connectable between a power source and a load and at least one auxiliary switch, each switch actuable between a default position and a switched position, a coil structure configured to actuate the at least one load switch and at least one auxiliary switch in response to a control input, the coil structure switchable between an actuating configuration for actuating the at least one load switch and the at least one auxiliary switch from the default position, and a holding configuration for holding the at least one load switch and the at least one auxiliary switch in the switched position, and a resettable current limiting device configured to limit the current flow in the actuating configuration of the coil structure if the current flow exceeds a threshold for a predetermined period of time, wherein the at least one auxiliary switch is configured to switch the coil structure from the actuating configuration to the holding configuration.05-21-2009
20100103709SYSTEM AND METHOD FOR EMULATING AN IDEAL DIODE IN A POWER CONTROL DEVICE - A system and method for emulating an ideal diode for use in a power control device is provided. In one embodiment, the invention relates to a circuit for emulating an ideal diode, the circuit including at least one field effect transistor including a source, a drain, a gate, and a body diode, an input; an output coupled to the drain, a control circuit including a current sensor coupled between the input and the source, and a control circuit output coupled to the gate, wherein the control circuit is configured to activate the at least one field effect transistor based on whether the current flowing into the source is greater than a predetermined threshold, and wherein the body diode comprises an anode coupled to the source and a cathode coupled to the drain.04-29-2010
20100214703POWER DISTRIBUTION SYSTEM USING SOLID STATE POWER CONTROLLERS - Solid state power controllers are described that include a switch controlled by a microcontroller and communication contacts. In one aspect of the invention, the microcontroller is galvanically isolated from the communication contacts using magnetoresistive isolation. In another aspect of the invention a number of solid state power controllers are connected to an external microcontroller to form a power distribution array. In addition, messages exchanged between the external microcontroller and the solid state power controllers can be used to configure the solid state power controllers and provide a user interface.08-26-2010
20110140663SYSTEMS AND METHODS FOR BALANCING MULTI-CELL BATTERIES - Systems and methods for balancing multi-cell batteries are provided. In one embodiment, the battery balancing circuit includes a battery including a plurality of cells coupled in series, a first terminal and a second terminal, a transformer including a primary winding and a plurality of secondary windings, where each secondary winding is coupled to one of the plurality of cells via a secondary switch and a rectifier circuit, where the primary winding is coupled between the first terminal and the second terminal of the battery, a primary switch in series with the primary winding of the transformer, and a control circuitry coupled to the primary switch, the plurality of secondary switches, and each of the plurality of cells.06-16-2011

Patent applications by Farshid Tofigh, Mission Viejo, CA US