Patents Assigned to Integrated Device Technology
  • Publication number: 20190212445
    Abstract: A laser distance sensor (LDS) performs multiple measurement attempts with different values of operating parameters, e.g. of laser power gain (GL) or received light amplifier gain (GTIA). The parameter values, and the order of values for different measurement attempts, are determined from analysis of prior measurement data. Such data may include parameter values used in prior satisfactory measurements. The parameter values, the order indication, and other measurement information are stored by the LDS for use in subsequent measurements. Machine learning is performed to analyze stored data and determine the best parameter values and order for the current measurement.
    Type: Application
    Filed: January 10, 2018
    Publication date: July 11, 2019
    Applicant: Integrated Device Technology, Inc.
    Inventor: Cheng Wen HSIAO
  • Patent number: 10340786
    Abstract: A rectifier circuit can include a plurality of FETs arranged as a rectifier; and a start-up circuit applied to each of the plurality of FETs that turn each of the FETs off during a circuit startup period, wherein the start-up circuit provides a large impedance for low power dissipation during normal operation of the rectifier.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: July 2, 2019
    Assignee: Integrated Device Technology, Inc.
    Inventors: Lijie Zhao, Yue Wang, Stephen Ulbrich
  • Publication number: 20190187628
    Abstract: A multi-stop time-to-digital converter (TDC, 110) includes single-stop TDCs (326, 510) connected to output nodes of a ring oscillator (504). Other features and embodiments are also provided.
    Type: Application
    Filed: December 20, 2017
    Publication date: June 20, 2019
    Applicant: Integrated Device Technology, Inc.
    Inventor: Min CHU
  • Patent number: 10320376
    Abstract: A frequency divider system and method includes a split-divisor frequency divider module. The split-divisor frequency divider module receives a clock signal and generates an output signal based on a first divisor and a second divisor. The clock signal and output signal each have rectangular waveforms characterized by a respective frequency and pulse width. The frequency of the output signal is a selectable integer fraction of the frequency of the clock signal, the frequency of the output signal being selected based on a sum of the first and second divisors. The pulse width of the output signal is a selectable integer number of clock cycles, the pulse width of the output signal being selected based on at least one of the first divisor and the second divisor.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: June 11, 2019
    Assignee: Integrated Device Technology, Inc.
    Inventor: Richard Geiss
  • Patent number: 10320234
    Abstract: A wireless power receiver comprises a resonant tank configured to generate an AC power signal responsive to an electromagnetic field, a rectifier configured to receive the AC power signal and generate a DC output power signal, and control logic configured to control the resonant tank to reconfigure and adjust its resonant frequency responsive to a determined transmitter type of a wireless power transmitter. The control logic may operate the wireless power receiver as a multimode receiver having a first mode for a first transmitter type and a second mode for a second transmitter type. The resonant tank may exhibit a different resonant frequency for each of the first mode and the second mode. A method comprises determining a transmitter type for a wireless power transmitter desired to establish a mutual inductance relationship, and adjusting a resonant frequency of a resonant tank of a wireless power receiver.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: June 11, 2019
    Assignee: Integrated Device Technology, Inc.
    Inventor: Ovidiu Aioanei
  • Publication number: 20190170584
    Abstract: Embodiments of the invention relate to a method for producing a color sensor with a sensor characteristic adjusted by three sensor elements that each comprise an element characteristic, and a color filter cooperating with the sensor elements and consisting of color filter elements that each comprise a filter element characteristic, and to a color sensor. Embodiments include a method with which a color sensor with a precisely adjustable sensor characteristic can be produced from several photosensitive elements and from simple filter elements is solved in that the particular filter element characteristics are adjusted in such a manner that they have in cooperation with the respective element characteristic an interim characteristic of the sensor which deviates from the sensor characteristic on the whole, wherein the sensor characteristic is generated from the interim characteristic by a transformation algorithm using transformation parameters.
    Type: Application
    Filed: July 4, 2017
    Publication date: June 6, 2019
    Applicant: Integrated Device Technology, Inc.
    Inventors: Matthias GARZAROLLI, Thomas REICHEL
  • Patent number: 10312736
    Abstract: A wireless power transmission system is presented. In some embodiments, a transmission unit includes a first inductor with a center tap, a first end tap, and a second end tap; a pre-regulator coupled to provide current to the center tap; a switching circuit coupled to the first end tap and the second end tap, the switching circuit alternately coupling the first end tap and the second end tap to ground at a frequency; and a resonant circuit magnetically coupled to the first inductor, the resonant circuit wirelessly transmitting power. In some embodiments, the switching circuit can be formed of FETs. The current provided to the center tap can be controlled in response to current sensors.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: June 4, 2019
    Assignee: Integrated Device Technology, Inc.
    Inventor: Mehmet K. Nalbant
  • Publication number: 20190155738
    Abstract: Scalable Coherent Apparatus and Method have been disclosed. In one implementation a dual directory approach is used to implement scalable coherent accesses in a heterogeneous system.
    Type: Application
    Filed: January 29, 2019
    Publication date: May 23, 2019
    Applicant: Integrated Device Technology, Inc.
    Inventor: Mohammad Shahanshah Akhter
  • Patent number: 10284015
    Abstract: A wireless power transmission system is presented. In some embodiments, a transmission unit includes a first inductor with a center tap, a first end tap, and a second end tap; a pre-regulator coupled to provide current to the center tap; a switching circuit coupled to the first end tap and the second end tap, the switching circuit alternately coupling the first end tap and the second end tap to ground at a frequency; and a resonant circuit magnetically coupled to the first inductor, the resonant circuit wirelessly transmitting power. In some embodiments, the switching circuit can be formed of FETs. The current provided to the center tap can be controlled in response to current sensors.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: May 7, 2019
    Assignee: Integrated Device Technology, Inc.
    Inventor: Mehmet K. Nalbant
  • Patent number: 10211720
    Abstract: A wireless power transmitter comprises a bridge inverter including a first switch and a second switch coupled together with a first switching node therebetween, and a first capacitor coupled to the first switching node. The transmitter further includes control logic configured to control the first switch and the second switch according to an operating frequency to generate an AC power signal from a DC power signal, and a resonant tank operably coupled to the first switching node of the bridge inverter, the resonant tank configured to receive the AC power signal and generate an electromagnetic field responsive thereto. A method for operating the wireless power transmitter and a method for making the wireless power transmitter are also disclosed.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: February 19, 2019
    Assignee: Integrated Device Technology, Inc.
    Inventor: Mehmet K. Nalbant
  • Patent number: 10199818
    Abstract: A system and method of over-voltage protection includes a switch coupled between a power source and a load, a detection circuit configured to detect an onset of an over-voltage event at the load; and a driver circuit coupled to the switch and the detection circuit. The driver circuit includes a boost sub-circuit that provides a low-resistance path for opening the switch in a boost mode, the boost mode being triggered by the onset of the over-voltage event and having a predetermined duration and a steady state sub-circuit that provides a high-resistance path for holding the switch open during steady state operation when the boost mode.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: February 5, 2019
    Assignee: Integrated Device Technology, Inc.
    Inventors: Rosario Pagano, Herman R. Paz, Siamak Abedinpour
  • Patent number: 10199865
    Abstract: In accordance with some embodiments, a transmitter for wireless transfer includes a rectifier that receives an AC voltage and provides a DC voltage; a capacitor that receives and smooths the DC voltage; a regulator that receives the DC voltage and outputs an input voltage; and a wireless transmitter that receives the input voltage and transmits wireless power.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: February 5, 2019
    Assignee: Integrated Device Technology, Inc.
    Inventor: Mehmet K. Nalbant
  • Publication number: 20180350878
    Abstract: A Method and Apparatus for a Transmission Gate for Multi-GB/s Application have been disclosed. By actively biasing the gate and body of both NFET and PFET improved performance is achieved.
    Type: Application
    Filed: September 24, 2011
    Publication date: December 6, 2018
    Applicant: Integrated Device Technology, Inc.
    Inventors: Yonggang Chen, Shriram Kulkarni, Prashant Shamarao
  • Patent number: 10132650
    Abstract: A wireless power transmitter may include a transmit coil configured to generate a wireless power signal for wireless power transfer, at least one secondary sensing coil configured to generate a signal responsive to a magnetic flux field generated during the wireless power transfer, and control logic configured to detect at least one condition of a wireless power transfer system responsive to detecting distortion in the magnetic flux field from the at least one signal received from the secondary sensing coil. A related method may include generating with a wireless power transmitter a wireless power signal, generating with a plurality of secondary sensing coils one or more signals responsive to a magnetic flux field generated during the wireless power transfer, and detecting at least one condition of a wireless power transfer system responsive to the one or more signals generated by the plurality of secondary sensing coils.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: November 20, 2018
    Assignee: Integrated Device Technology, Inc.
    Inventors: Gustavo J. Mehas, David F. Wilson, Nicholaus W. Smith
  • Patent number: 10135955
    Abstract: A method and apparatus provides a parameter estimation processor configured to estimate parameters used to compress data for transmission over a serial data link. The parameter estimation processor includes a processor. The processor includes user programmable inputs. The user programmable inputs set an input data packet length, a target compression ratio, and a resampling factor and allow filter parameters to be set. Input data information is received from an input data buffer of a data sample compressor. The processor performs a function that: (a) adjusting a target compression ratio by a first compression ratio to determine a remaining compression ratio when the resampling operation is enabled; (b) estimating a set of compression parameters that are used to achieve the remaining compression ratio, the set of compression parameters includes an attenuation value, filter order, a type of encoding; and (c) sends the set of compression parameters to the data sample compressor.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: November 20, 2018
    Assignee: Integrated Device Technology, Inc.
    Inventors: Mohammad Shahanshah Akhter, Bachir Berkane
  • Patent number: 10014721
    Abstract: An inductive wireless power transfer device comprises a transmitter that comprises a transmit coil configured to generate a wireless power signal to a coupling region in response to an input voltage, and a modulator configured to modulate the wireless power signal and encode data with the wireless power signal to establish a back-channel communication link from the transmitter to a receiver. An inductive wireless power receiving device comprises a receiver that comprises a receive coil configured to generate a time varying signal in response to receiving a modulated wireless power signal from a transmitter in a coupling region, and a demodulator configured to demodulate the modulated wireless power signal from an established back-channel communication link from the transmitter to a receiver. Related inductive wireless power transfer systems and methods for back-channel communication from the transmitter to the receiver of an inductive wireless power transfer system are disclosed.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: July 3, 2018
    Assignee: Integrated Device Technology, Inc.
    Inventors: Manjit Singh, Siamak Bastami, David Wilson
  • Patent number: 9998180
    Abstract: A wireless power enabled apparatus may comprise a wireless power receiver that includes a receive coil configured to generate an AC signal responsive an electromagnetic field, a rectifier including a plurality of switches configured to receive the AC signal and generate an output power signal, and control logic configured to control the plurality of switches to cause the rectifier to modulate the output power signal. The control logic may be configured to control the plurality of switches within the rectifier to have an overlap delay that modulates at least one parameter of the wireless power receiver. A method of operating a receiver side of a wireless power transfer system comprises generating an output power signal including a rectified voltage and a rectified current responsive to receiving a wireless power signal, and controlling a rectifier according to at least one mode including a power modulation mode modulating the output power signal.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: June 12, 2018
    Assignee: Integrated Device Technology, Inc.
    Inventors: Anton Bakker, Craig Lambert
  • Patent number: 9991818
    Abstract: A wireless power enabled apparatus includes a wireless power receiver. The wireless power receiver includes one or more receive coils configured to generate an AC power signal responsive to a wireless power signal. The wireless power receiver also includes two or more inductors configured with tightly coupled windings that share a common leakage inductance. Switching circuits are included such that each switching circuit is operably coupled to a corresponding one of the inductors. Control logic is configured to operate switches of the switching circuits such that each of the switching circuits and its corresponding two or more inductors are operated to shift between an energy storage mode for one or more phases of a switching period and an energy transfer mode for other phases of the switching period and the phases combine to comprise an entirety of the switching period.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: June 5, 2018
    Assignee: Integrated Device Technology, Inc.
    Inventors: Gustavo J. Mehas, Anthonius Bakker
  • Patent number: 9979290
    Abstract: A switching regulator is presented. An embodiment of the switching regulator can include a high switch coupled between an input voltage and a switched output; a low switch coupled between the switched output and a ground; and a ringing switch coupled between a capacitor and the switched output, wherein the ringing switch is closed prior to transition into a tristate where both the high switch and the low switch are open.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: May 22, 2018
    Assignee: Integrated Device Technology, Inc.
    Inventor: Stephen Ulbrich
  • Patent number: 9979237
    Abstract: A wireless power transmission system is presented. The wireless power circuit includes an adaptive transmitter coupled to a transmit coil; a receive coil in interaction with the transmit coil, the receive coil being thin and having an inner diameter large enough to accommodate sensors of a wearable device; and a receive circuit receiving power from the receive coil.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: May 22, 2018
    Assignee: Integrated Device Technology, Inc.
    Inventor: Mehmet K. Nalbant