Patents by Inventor Tommy Yu

Tommy Yu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11933919
    Abstract: Systems and methods for synthesis of a modulated RF signal using a variety of modulation schemes are described. An embodiment includes a direct frequency synthesizer with frequency modulated continuous wave (FMCW) modulation that includes: a high speed BAW resonator that generates a frequency signal; a BAW oscillator that receives the frequency signal and generates an output BAW clock signal (BAW CLK); a frequency and phase estimation circuit that receives a reference clock signal from a reference clock (REF CLK) and the BAW CLK and generates a frequency error and a phase error; a frequency chirp generator that receives chirp parameters, a chirp sync signal and generates a nominal frequency control word (FCW); and a high speed digital to analog converter (HS DAC) that receives the BAW CLK and the codeword and outputs an analog signal.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: March 19, 2024
    Assignee: Mixed-Signal Devices Inc.
    Inventors: Tommy Yu, Avanindra Madisetti
  • Publication number: 20240081025
    Abstract: A boiler plate is provided. The boiler plate includes a heat spreader layer operable to transfer heat from a computing component across the heat spreader layer. The heat spreader layer extends along a plane. At least one heat pipe extends from the heat spreader layer in a direction substantially perpendicular to the plane away from the computing component. The at least one heat pipe is operable to transfer the heat away from the heat spreader layer to reduce a temperature of the computing component.
    Type: Application
    Filed: September 6, 2022
    Publication date: March 7, 2024
    Applicant: ZT GROUP INT'L, INC. DBA ZT SYSTEMS
    Inventors: Ting Yu Lin, Tommy Lin
  • Publication number: 20240063803
    Abstract: Systems and methods for processing and storing digital information are described. One embodiment includes a method for linearizing digital-to-analog conversion including: receiving an input digital signal; segmenting the input digital signal into several segments, each segment being thermometer-coded; generating a redundant representation of each of the several segments, defining several redundant segments; performing a redundancy mapping for the several segments, defining redundantly mapped segments; assigning a probabilistic assignment for redundantly mapped segments; converting each redundantly mapped segment into an analog signal by a sub-digital-to-analog converter (DAC); and combining the analog signals to define an output analog signal.
    Type: Application
    Filed: August 24, 2023
    Publication date: February 22, 2024
    Applicant: Mixed-Signal Devices Inc.
    Inventors: Tommy Yu, Avanindra Madisetti
  • Patent number: 11777511
    Abstract: Systems and methods for processing and storing digital information are described. One embodiment includes a method for linearizing digital-to-analog conversion including: receiving an input digital signal; segmenting the input digital signal into several segments, each segment being thermometer-coded; generating a redundant representation of each of the several segments, defining several redundant segments; performing a redundancy mapping for the several segments, defining redundantly mapped segments; assigning a probabilistic assignment for redundantly mapped segments; converting each redundantly mapped segment into an analog signal by a sub-digital-to-analog converter (DAC); and combining the analog signals to define an output analog signal.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: October 3, 2023
    Assignee: Mixed-Signal Devices Inc.
    Inventors: Tommy Yu, Avanindra Madisetti
  • Publication number: 20230266448
    Abstract: Systems and methods for synthesis of a modulated RF signal using a variety of modulation schemes are described. An embodiment includes a direct frequency synthesizer with frequency modulated continuous wave (FMCW) modulation that includes: a high speed BAW resonator that generates a frequency signal; a BAW oscillator that receives the frequency signal and generates an output BAW clock signal (BAW CLK); a frequency and phase estimation circuit that receives a reference clock signal from a reference clock (REF CLK) and the BAW CLK and generates a frequency error and a phase error; a frequency chirp generator that receives chirp parameters, a chirp sync signal and generates a nominal frequency control word (FCW); and a high speed digital to analog converter (HS DAC) that receives the BAW CLK and the codeword and outputs an analog signal.
    Type: Application
    Filed: February 24, 2022
    Publication date: August 24, 2023
    Applicant: Mixed-Signal Devices Inc.
    Inventors: Tommy Yu, Avanindra Madisetti
  • Publication number: 20220252694
    Abstract: Systems and methods for digitally synthesizing chirp signal in a low intermediate frequency (IF) band and using frequency multipliers to generate a higher frequency signal for radar applications are described. An embodiment includes a chirp signal generator that includes: a direct digital frequency synthesizer (DDFS) that is configured to receive an input sync signal and a frequency reference signal and generate several chirp signals at a first frequency that is in a low intermediate frequency (IF) band, several frequency multipliers that are configured to increase the chirp signals to higher frequencies and several bandpass filter circuits that are configured to remove nonlinearities from the chirp signals to generate a clean output signal.
    Type: Application
    Filed: February 4, 2022
    Publication date: August 11, 2022
    Applicant: Mixed-Signal Devices Inc.
    Inventors: Tommy Yu, Avanindra Madisetti
  • Patent number: 11405045
    Abstract: The present embodiments introduce an approach for designing perfectly linear DACs using non-ideal components. The approach may eliminate the non-linearity of the DAC and remove the conventional trade-offs between performance and complexity.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: August 2, 2022
    Assignee: Mixed-Signal Devices Inc.
    Inventors: Tommy Yu, Avanindra Madisetti
  • Publication number: 20220085823
    Abstract: The present embodiments introduce an approach for designing perfectly linear DACs using non-ideal components. The approach may eliminate the non-linearity of the DAC and remove the conventional trade-offs between performance and complexity.
    Type: Application
    Filed: September 10, 2021
    Publication date: March 17, 2022
    Applicant: Mixed-Signal Devices Inc.
    Inventors: Tommy Yu, Avanindra Madisetti
  • Patent number: 11258448
    Abstract: Systems and methods for digital synthesis of an output signal using a frequency generated from a resonator and computing amplitude values that take into account temperature variations and resonant frequency variations resulting from manufacturing variability are described. A direct frequency synthesizer architecture is leveraged on a high Q resonator, such as a film bulk acoustic resonator (FBAR), a spectral multiband resonator (SMR), and a contour mode resonator (CMR) and is used to generate pristine signals.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: February 22, 2022
    Assignee: Mixed-Signal Devices Inc.
    Inventors: Tommy Yu, Avanindra Madisetti
  • Publication number: 20220006465
    Abstract: Systems and methods for processing and storing digital information are described. One embodiment includes a method for linearizing digital-to-analog conversion including: receiving an input digital signal; segmenting the input digital signal into several segments, each segment being thermometer-coded; generating a redundant representation of each of the several segments, defining several redundant segments; performing a redundancy mapping for the several segments, defining redundantly mapped segments; assigning a probabilistic assignment for redundantly mapped segments; converting each redundantly mapped segment into an analog signal by a sub-digital-to-analog converter (DAC); and combining the analog signals to define an output analog signal.
    Type: Application
    Filed: September 14, 2021
    Publication date: January 6, 2022
    Applicant: Mixed-Signal Devices Inc.
    Inventors: Tommy Yu, Avanindra Madisetti
  • Publication number: 20210175889
    Abstract: Systems and methods for digital synthesis of an output signal using a frequency generated from a resonator and computing amplitude values that take into account temperature variations and resonant frequency variations resulting from manufacturing variability are described. A direct frequency synthesizer architecture is leveraged on a high Q resonator, such as a film bulk acoustic resonator (FBAR), a spectral multiband resonator (SMR), and a contour mode resonator (CMR) and is used to generate pristine signals.
    Type: Application
    Filed: October 19, 2020
    Publication date: June 10, 2021
    Applicant: Mixed-Signal Devices Inc.
    Inventors: Tommy Yu, Avanindra Madisetti
  • Patent number: 10840939
    Abstract: A parallel delta sigma modulator architecture is disclosed. The parallel delta sigma modulator architecture includes a signal demultiplexer configured to receive an input signal and to demultiplex the input signal to output a plurality of streams, a plurality of delta sigma modulators executing in parallel, each delta sigma modulator configured to receive a stream from the plurality of streams and to generate a delta sigma modulated output, and a signal multiplexer configured to receive a plurality of delta sigma modulated outputs from the plurality of delta sigma modulators and to multiplex together the plurality of delta sigma modulated outputs into a pulse train.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: November 17, 2020
    Assignee: Mixed-Signal Devices Inc.
    Inventors: Tommy Yu, Avanindra Madisetti
  • Patent number: 10812087
    Abstract: Systems and methods for digital synthesis of an output signal using a frequency generated from a resonator and computing amplitude values that take into account temperature variations and resonant frequency variations resulting from manufacturing variability are described. A direct frequency synthesizer architecture is leveraged on a high Q resonator, such as a film bulk acoustic resonator (FBAR), a spectral multiband resonator (SMR), and a contour mode resonator (CMR) and is used to generate pristine signals.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: October 20, 2020
    Assignee: Mixed-Signal Devices Inc.
    Inventors: Tommy Yu, Avanindra Madisetti
  • Publication number: 20200106448
    Abstract: Systems and methods for digital synthesis of an output signal using a frequency generated from a resonator and computing amplitude values that take into account temperature variations and resonant frequency variations resulting from manufacturing variability are described. A direct frequency synthesizer architecture is leveraged on a high Q resonator, such as a film bulk acoustic resonator (FBAR), a spectral multiband resonator (SMR), and a contour mode resonator (CMR) and is used to generate pristine signals.
    Type: Application
    Filed: December 4, 2019
    Publication date: April 2, 2020
    Applicant: MY Tech, LLC
    Inventors: Tommy Yu, Avanindra Madisetti
  • Patent number: 10530372
    Abstract: Systems and methods for digital synthesis of an output signal using a frequency generated from a resonator and computing amplitude values that take into account temperature variations and resonant frequency variations resulting from manufacturing variability are described. A direct frequency synthesizer architecture is leveraged on a high Q resonator, such as a film bulk acoustic resonator (FBAR), a spectral multiband resonator (SMR), and a contour mode resonator (CMR) and is used to generate pristine signals.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: January 7, 2020
    Assignee: MY Tech, LLC
    Inventors: Tommy Yu, Avanindra Madisetti
  • Publication number: 20190356329
    Abstract: A parallel delta sigma modulator architecture is disclosed. The parallel delta sigma modulator architecture includes a signal demultiplexer configured to receive an input signal and to demultiplex the input signal to output a plurality of streams, a plurality of delta sigma modulators executing in parallel, each delta sigma modulator configured to receive a stream from the plurality of streams and to generate a delta sigma modulated output, and a signal multiplexer configured to receive a plurality of delta sigma modulated outputs from the plurality of delta sigma modulators and to multiplex together the plurality of delta sigma modulated outputs into a pulse train.
    Type: Application
    Filed: July 29, 2019
    Publication date: November 21, 2019
    Applicant: MY Tech, LLC
    Inventors: Tommy Yu, Avanindra Madisetti
  • Patent number: 10454490
    Abstract: A dielectric resonator oscillator includes a dielectric resonator; a transmission line disposed adjacent the dielectric resonator; an active device having an input electrically connected to the transmission line; a matching network having an input electrically connected to an output of the active device and an output configured to be connected to a load; wherein both the transmission line and the active device are positioned sufficiently close to the dielectric resonator to form part of a resonant circuit with the dielectric resonator.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: October 22, 2019
    Assignee: Entropic Communications LLC
    Inventors: Branislav Petrovic, Tommy Yu, Troy Brandon, Ralph Duncan
  • Patent number: 10367522
    Abstract: A parallel delta sigma modulator architecture is disclosed. The parallel delta sigma modulator architecture includes a signal demultiplexer configured to receive an input signal and to demultiplex the input signal to output a plurality of streams, a plurality of delta sigma modulators executing in parallel, each delta sigma modulator configured to receive a stream from the plurality of streams and to generate a delta sigma modulated output, and a signal multiplexer configured to receive a plurality of delta sigma modulated outputs from the plurality of delta sigma modulators and to multiplex together the plurality of delta sigma modulated outputs into a pulse train.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: July 30, 2019
    Assignee: MY Tech, LLC
    Inventors: Tommy Yu, Avanindra Madisetti
  • Patent number: 10236969
    Abstract: Systems and methods for correcting frequency error in a received signal include: receiving a satellite signal, the satellite signal having a bandwidth and a center frequency; determining the profile of the satellite signal; computing the center frequency of the satellite signal based on the profile of the received signal; and generating a reference signal at the computed center frequency. The systems and methods may further include computing a center frequency of each of a plurality of satellite signals based on the computed center frequency. Determining the profile may include sweeping a tuner above and below a given reference frequency; measuring the received signal strength during the sweeping operation; and determining the profile based on the received signal strength.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: March 19, 2019
    Assignee: Entropic Communications LLC
    Inventors: Branislav Petrovic, Tommy Yu, Troy Brandon, Ralph Duncan
  • Publication number: 20180234123
    Abstract: Systems and methods for canceling cross-coupled satellite signals in a LNB IC include receiving a first satellite signal at a first input of the LNB IC and filtering the first satellite signal using a first adaptive filter, the first adaptive filter having first filter coefficients; combining the adjusted first satellite signal with a second satellite signal received at a second input of the LNB IC to generate a first combined satellite signal; measuring the total output power of the combined satellite signal; changing the filter coefficients of the first adaptive filter; remeasuring the total output power of the first combined satellite signal after the changing of the first filter coefficients to determine whether the total power of the first combined satellite signal has decreased.
    Type: Application
    Filed: April 11, 2018
    Publication date: August 16, 2018
    Inventors: Branislav Petrovic, Tommy Yu, Troy Brandon, Ralph Duncan