Patents Assigned to NXP
  • OSCILLATOR CIRCUIT
    Publication number: 20140070897
    Abstract: An oscillator circuit (702; 802) comprising first and second resonator terminals (710, 712; 810, 812) for connecting to respective terminals of a resonator (704; 804). The oscillator circuit also comprises a first inverting amplifier (706; 806) connected between the first and second resonator terminals (710, 712; 810, 812) in a first mode of operation; and a back to back pair of second inverting amplifiers (706, 708; 806, 808) connected between the first and second resonator terminals (710, 712; 810, 812) in a second mode of operation. There is also provided a controller configured to compare an operational parameter of the oscillator circuit (702; 802) to a switchover threshold, and switch the oscillator circuit (702; 802) from the first mode of operation to the second mode of operation when the operational parameter exceeds the switchover threshold.
    Type: Application
    Filed: February 22, 2013
    Publication date: March 13, 2014
    Applicant: NXP B.V.
    Inventor: NXP B.V.
  • SET-UP OF MEDIA STREAM TRANSMISSION AND SERVER AND CLIENT FOR MEDIA STREAM TRANSMISSION
    Publication number: 20140074992
    Abstract: A network client device is disclosed having a media streamer for processing a media stream received at a first port of a client device. Further included is a setup controller configured to transmit a set-up request message and a discovery message without waiting for acknowledgement of reception of the set-up request message before transmission of the discovery message, from a second port and the first port respectively, to predetermined ports of a server device.
    Type: Application
    Filed: October 1, 2013
    Publication date: March 13, 2014
    Applicant: NXP B.V.
    Inventor: Raoul MALLART
  • SECURE WIRELESS COMMUNICATION APPARATUS
    Publication number: 20140075511
    Abstract: Aspects of various embodiments are directed to the communication of wireless data. In a particular embodiment, an apparatus includes a master/wireless communication circuit and a slave circuit that carries out a secure function. The master generates session initiation commands, and the slave is responsive to these commands by generating and storing a session ID. In response to the receipt and validation of user-input data, the slave accesses and locally stores the session ID. Upon the initiation of and/or during a wireless communication process, the slave again accesses the session ID and compares the accessed session ID with the locally stored session ID, and facilitates communication based on the comparison (e.g., communication is not permitted if the comparison does not indicate a match).
    Type: Application
    Filed: September 7, 2012
    Publication date: March 13, 2014
    Applicant: NXP B.V.
    Inventors: Andreas Lessiak, Mario Ivkovic
  • INTEGRATED CIRCUIT COMPRISING A GAS SENSOR
    Publication number: 20140070825
    Abstract: An integrated circuit and a method of making the same. The integrated circuit includes a semiconductor substrate. The integrated circuit also includes an electrical impedance based gas sensor located on the substrate. The sensor includes first and second electrically conductive sensor electrodes. Each sensor electrode is enclosed in an electrically conductive corrosion protection material. The sensor also includes a gas sensitive material located between the sensor electrodes. The impedance of the gas sensitive material is sensitive to a gas to be sensed.
    Type: Application
    Filed: September 10, 2013
    Publication date: March 13, 2014
    Applicant: NXP B.V.
    Inventors: Aurelie Humbert, Roel Daamen
  • NOISE FILTERING
    Publication number: 20140071719
    Abstract: A noise filter circuit uses open loop signal processing to process the signal that causes the noise and generate a signal to be fed back into the system to cancel noise currents.
    Type: Application
    Filed: August 5, 2013
    Publication date: March 13, 2014
    Applicant: NXP B.V.
    Inventors: Juergen STAHL, Thomas Antonius DUERBAUM, Jens GOETTLE, Alexander PAWELLEK, Anton Cornelis BLOM, Hans HALBERSTADT, Frans PANSIER
  • MULTIPATH INTERFERENCE REDUCTION
    Publication number: 20140072122
    Abstract: The invention provides an audio signal processing system in which a magnitude spectrum of a frequency domain audio signal is processed based on a measure of multipath interference. The processing keeps the magnitude spectrum approximately fixed during periods of multipath interference, for example by replacing it with a temporally smoothed version of the magnitude spectrum. The magnitude spectrum (processed if required) and the phase spectrum are combined to derive a frequency domain output, which is transformed to the time domain.
    Type: Application
    Filed: September 10, 2013
    Publication date: March 13, 2014
    Applicant: NXP B.V .
    Inventor: Temujin Gautama
  • LOW-POWER RESISTOR-LESS VOLTAGE REFERENCE CIRCUIT
    Publication number: 20140070873
    Abstract: A method for generating a reference voltage is disclosed. The method includes generating a proportional-to-absolute temperature (PTAT) voltage across a first pseudo resistor. The first pseudo resistor includes a transistor. The method also includes converting the PTAT voltage to a current based on a resistance of the first pseudo resistor. The method also includes mirroring the current using a current mirror circuit and converting the mirrored current to the PTAT voltage using a second pseudo resistor. The second pseudo resistor includes a transistor. The first pseudo resistor and the second pseudo resistor include equal transistor types. The method also includes generating a complimentary-to-absolute temperature (CTAT) voltage, and summing the converted PTAT voltage and the CTAT voltage to produce the reference voltage. The resulting reference voltage is temperature independent.
    Type: Application
    Filed: September 7, 2012
    Publication date: March 13, 2014
    Applicant: NXP B.V.
    Inventors: ANDRE GUNTHER, KEVIN MAHOOTI
  • HYBRID RF POLLING LOOP FOR NFC DEVICE AND RETRY MECHANISM
    Publication number: 20140073240
    Abstract: Various exemplary embodiments relate to a method of controlling a near field communications (NFC) system, including: reading a number of low power iterations N from a memory; performing N low power polls; performing a normal power poll. Further, various exemplary embodiments relate to a method of controlling a near field communications (NFC) system, including: performing a low power poll of a tag; detecting a tag; initiating a first activation of the detected tag; receiving an indication that the first activation fails; reading a number of retries N from a memory; performing a second activation.
    Type: Application
    Filed: September 11, 2012
    Publication date: March 13, 2014
    Applicant: NXP B.V
    Inventor: Maxime Gree
  • DIGITAL AUDIO PROCESSING SYSTEM AND METHOD
    Publication number: 20140072123
    Abstract: Systems and method for audio processing are disclosed. Left and right channels of an audio data stream are combined to derive sum and difference signals. A time domain to frequency domain converter is provided for converting the sum and difference signals to the frequency domain. a first processing unit is provided for deriving a frequency domain noise signal based at least partly on the frequency domain difference signal. A second processing unit is provided for processing the frequency domain sum signal using the noise signal thereby to reduce noise artifacts in the sum signal. A frequency domain to time domain converter is provided for converting at least the processed frequency domain sum signal to the time domain.
    Type: Application
    Filed: August 22, 2013
    Publication date: March 13, 2014
    Applicant: NXP B.V.
    Inventors: Temujin GAUTAMA, Alan OCINNEIDE
  • METHOD AND SYSTEM FOR REDUCING IMPULSIVE NOISE DISTURBANCE
    Publication number: 20140072132
    Abstract: FM and AM receivers in car environments require a noise blanker circuit or method to reduce the audible disturbances generated by impulse noise, such as ignition noise, in the audio signal. The invention proposes a combination of time-domain and frequency-domain processing to reduce the audible distortion. The time-domain processing interpolates the signal during the impulse noise bursts, and the frequency-domain processing disperses the remaining signal distortion over time, or relocates it to positions in time where it is attenuated by a windowing technique.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 13, 2014
    Applicant: NXP B.V.
    Inventor: Temujin Gautama
  • INTEGRATED CIRCUIT INCLUDING AN ENVIRONMENTAL SENSOR
    Publication number: 20140070337
    Abstract: An integrated circuit and a method of making the same. The integrated circuit includes a semiconductor substrate including at least one environmental sensor. The integrated circuit also includes a cap layer located on a major surface of the substrate. The integrated circuit further includes at least one elongate channel for allowing access of said sensor to an environment surrounding the integrated circuit.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 13, 2014
    Applicant: NXP B. V.
    Inventors: Willem Frederik Adrianus Besling, Martien Kengen
  • Fast service scan
    Patent number: 8670077
    Abstract: A method of performing a service scan for available channels across a bandwidth of an input signal, the method comprising the steps of: acquiring a power spectrum of the input signal bandwidth; analyzing the power spectrum to identify a list of candidate channels, each candidate channel being identified by at least a center frequency; processing each of the candidate channels in a receiver unit to extract service information, if present, relating to the candidate channel; and storing the service information for the channel in a memory.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: March 11, 2014
    Assignee: NXP B.V.
    Inventors: Ewout Brandsma, Klaas de Waal, Konstantinos Doris, Erwin Janssen
  • Resonator
    Patent number: 8669822
    Abstract: A method of manufacturing a MEMS resonator formed from a first material having a first Young's modulus and a first temperature coefficient of the first Young's modulus, and a second material having a second Young's modulus and a second temperature coefficient of the second Young's modulus, a sign of the second temperature coefficient being opposite to a sign of the first temperature coefficient at least within operating conditions of the resonator. The method includes the steps of forming the resonator from the first material; applying the second material to the resonator; and controlling the quantity of the second material applied to the resonator by the geometry of the resonator.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: March 11, 2014
    Assignee: NXP, B.V.
    Inventor: Robert J. P. Lander
  • Audio streaming system and method for performing distributed audio processing within the system
    Patent number: 8670852
    Abstract: A system and method for performing distributed audio processing within the system uses streamed audio playing satellite units of the system to perform audio processing tasks, which are assigned to the appropriate streamed audio playing satellite units by an audio streaming base unit of the system.
    Type: Grant
    Filed: January 24, 2009
    Date of Patent: March 11, 2014
    Assignee: NXP, B.V.
    Inventor: Dharmesh Mehta
  • Stray-field sensor circuit and method
    Patent number: 8669761
    Abstract: A sensor circuit is configured and operated in the presence of interference. In connection with various example embodiments, a stray magnetic field is sensed with current sensors that also respectively sense current-induced magnetic fields generated by current flowing in opposing directions through different portions of a conductor. The current-induced magnetic fields and the stray magnetic field are coplanar, and the current sensors are arranged such that a portion of the output from each current sensor corresponding to the stray magnetic field is canceled when the sensor outputs are combined.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: March 11, 2014
    Assignee: NXP B.V.
    Inventors: Robert Hendrikus Margaretha van Veldhoven, Victor Zieren
  • Method of and device for determining and controlling the distance between an integrated circuit and a substrate
    Patent number: 8669123
    Abstract: In a method of determining the distance (d) between an integrated circuit (1) and a substrate (2) emitted light enters the at least semi transparent substrate (2), passes through the substrate (2) and an at least semi transparent material (8), is reflected by the integrated circuit (1), passes again through the material (8) and the substrate (2), and leaves the substrate (2). The at least semi transparent material (8), particularly is an at least semi transparent adhesive, provided between the substrate (2) and the integrated circuit (1). The distance (d) between the substrate (2) and the integrated circuit (1) is determined by evaluating the intensities of the light leaving and entering the substrate (2), particularly by evaluating the ratio between the intensities of the light leaving and entering the substrate (2).
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: March 11, 2014
    Assignee: NXP B.V.
    Inventor: Christian Zenz
  • Protection circuit for a cascode switch, and a method of protecting a cascode switch
    Patent number: 8670220
    Abstract: A circuit arrangement is disclosed comprising: a normally-on transistor (such as a HEMT) having first and second transistor main terminals and a non-insulated control terminal, the non-insulated control terminal being electrically coupled to a ground; a normally-off switch having first and second switch main terminals and a switch control terminal, the normally-off switch being arranged in a cascode configuration with the normally-on transistor, the first switch main terminal being electrically coupled to the second transistor main terminal, the switch control terminal being electrically coupled to the second switch main terminal and to the ground; and a control circuit configured to switch on the normally-off switch in response to the voltage at the first switch main terminal being negative relative to the ground. A method of controlling such a circuit is also disclosed.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: March 11, 2014
    Assignee: NXP B.V.
    Inventor: Frans Pansier
  • Power supply circuit with shared functionality and method for operating the power supply circuit
    Patent number: 8669674
    Abstract: A power supply circuit and a method for operating the power supply circuit are described. In one embodiment, a power supply circuit includes at least one input terminal to receive at least one input voltage, a power element including multiple power element components configured to convert the at least one input voltage to at least one output voltage, multiple regulator controllers configured to control the power element components for the conversion of the at least one input voltage to the at least one output voltage, at least one first switch coupled to the regulator controllers and the power element components, and multiple output terminals to output the at least one output voltage. The at least one first switch is used to configure the power supply circuit to function as either one voltage regulator or multiple independent voltage regulators. Other embodiments are also described.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: March 11, 2014
    Assignee: NXP B.V.
    Inventor: Luc Van Dijk
  • Apparatus and method for molecule detection using nanopores
    Patent number: 8669124
    Abstract: A detector device and method of its fabrication are disclosed. Illustratively, an additional via is present through an insulator layer over a gate channel region which is on top of the channel region. The additional via is filled with conductor material. The conductor material is removed to form a chamber leading to one side of the gate channel region. Furthermore, a nanopore is etched from the chamber through the channel region.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: March 11, 2014
    Assignee: NXP, B.V.
    Inventor: Matthias Merz
  • SRAM HANDSHAKE
    Publication number: 20140068145
    Abstract: Various exemplary embodiments relate to an integrated circuit including: a RF interface; a wired interface connectable to a host; a volatile memory having a first block and a last block configured to store data transferred between the RF interface and the wired interface; and a memory controller configured to detect when the last block of the volatile memory has been written and to indicate that the volatile memory is ready to read. Various exemplary embodiments relate to a method performed by a tag including: determining that data is to be received on the first interface; blocking the second interface; writing data from the first interface to a volatile memory; detecting that the last block of the volatile memory has been written; unblocking the second interface; indicating that data is available for reading; blocking the first interface; and reading data from the volatile memory to the second interface.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicant: NXP B.V.
    Inventors: Francesco Gallo, Paul Bakker, Giancarlo Cutrignelli