Patents by Inventor William J. Domino

William J. Domino 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: 8374297
    Abstract: A controller and a circuit work together to enable a selective and dynamic adjustment to correct phase and gain imbalances in quadrature signal paths of a receiver. Under select conditions, it has been determined that statistical estimates of gain and phase imbalance can be applied to adjust signals in the quadrature signal paths of a receiver. The controller validates the select conditions before updating the estimate of the gain imbalance and the estimate of the phase imbalance. The controller directs a compensator under select operating conditions such that validated dynamic estimates of the gain and phase imbalance or calibration data is applied to the quadrature signal paths. The controller disables the compensator and enables an estimator and a calculator when estimates are unavailable for the present operating conditions.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: February 12, 2013
    Assignee: Intel Corporation
    Inventors: Jaleh Komaili, Thomas Obkircher, William J. Domino
  • Publication number: 20120242379
    Abstract: Apparatus and methods for distributing spurious tones through the frequency domain are disclosed. One such apparatus can include a dithering circuit configured to generate a sequence of numbers that exhibit statistical randomness and a variable frequency circuit configured to adjust a frequency of an output based on the sequence of numbers so as to spread energy of spurious tones in a frequency response of the output to lower a noise floor. In one example, spurious tones can be reduced in a negative voltage generator of a radio frequency (RF) attenuator.
    Type: Application
    Filed: March 22, 2012
    Publication date: September 27, 2012
    Applicant: SKYWORKS SOLUTIONS, INC.
    Inventors: Thomas Obkircher, William J. Domino, Bipul Agarwal
  • Publication number: 20120183106
    Abstract: A controller and a circuit work together to enable a selective and dynamic adjustment to correct phase and gain imbalances in quadrature signal paths of a receiver. Under select conditions, it has been determined that statistical estimates of gain and phase imbalance can be applied to adjust signals in the quadrature signal paths of a receiver. The controller validates the select conditions before updating the estimate of the gain imbalance and the estimate of the phase imbalance. The controller directs a compensator under select operating conditions such that validated dynamic estimates of the gain and phase imbalance or calibration data is applied to the quadrature signal paths. The controller disables the compensator and enables an estimator and a calculator when estimates are unavailable for the present operating conditions.
    Type: Application
    Filed: March 22, 2012
    Publication date: July 19, 2012
    Inventors: Jaleh Komaili, Thomas Obkircher, William J. Domino
  • Publication number: 20120063555
    Abstract: A low noise receiver includes a downconverter configured to receive a radio frequency (RF) signal, the downconverter comprising a switching architecture configured to generate a plurality of output phases based on a respective plurality of local oscillator (LO) signals, a differencing circuit configured to combine the plurality of output phases such that an nth output phase is differenced with an (n+K)th output phase, resulting in gain-added output phases, and a summation filter configured to receive the gain-added output phases and configured to combine the gain-added output phases such that a response of the receiver effectively reduces odd harmonics of the RF signal.
    Type: Application
    Filed: September 14, 2011
    Publication date: March 15, 2012
    Applicant: SKYWORKS SOLUTIONS, INC.
    Inventors: Rajasekhar Pullela, William J. Domino
  • Publication number: 20100067622
    Abstract: A controller and a circuit work together to enable a selective and dynamic adjustment to correct phase and gain imbalances in quadrature signal paths of a receiver. Under select conditions, it has been determined that statistical estimates of gain and phase imbalance can be applied to adjust signals in the quadrature signal paths of a receiver. The controller validates the select conditions before updating the estimate of the gain imbalance and the estimate of the phase imbalance. The controller directs a compensator under select operating conditions such that validated dynamic estimates of the gain and phase imbalance or calibration data is applied to the quadrature signal paths. The controller disables the compensator and enables an estimator and a calculator when estimates are unavailable for the present operating conditions.
    Type: Application
    Filed: September 15, 2008
    Publication date: March 18, 2010
    Applicant: Skyworks Solutions, Inc.
    Inventors: Jaleh Komaili, Thomas Obkircher, William J. Domino
  • Patent number: 7647028
    Abstract: An internal calibration system for a radio frequency (RF) transmitter comprises a digital processing element to generate within a radio frequency (RF) transmitter test points at which an output of the RF transmitter is measured, an RF detector to measure the radio frequency output of the RF transmitter at the test points, the digital processing element also determining transmitter impairments by analyzing the measured radio frequency output, and compensation circuitry to compensate the RF transmitter for the measured impairments.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: January 12, 2010
    Assignee: Skyworks Solutions, Inc.
    Inventors: Norman J. Beamish, Morten Damgaard, William J. Domino
  • Patent number: 7593484
    Abstract: A radio frequency (RF) receiver device comprises a receiver system that receives an analog radio frequency signal and downconverts the analog radio frequency signal to a downconverted analog signal, the receiver system further including a peak signal detector configured to determine a peak signal level of the downconverted analog signal, and an automatic gain control adjustment element configured to determine whether the peak signal level falls within a predetermined range, and configured to generate, in the RF receiver, a gain control signal controlling the gain of at least one analog component based on whether the peak signal level falls within the predetermined range.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: September 22, 2009
    Assignee: Skyworks Solutions, Inc.
    Inventors: Norman J. Beamish, William J. Domino, Morten Damgaard, Bala Ramachandran
  • Patent number: 7548737
    Abstract: A system for transmitting and receiving data is provided. The system includes a direct-conversion receiver that receives a signal modulated on a carrier frequency signal. The direct-conversion receiver includes one or more subharmonic local oscillator mixers. A local oscillator is connected to the direct conversion receiver, and generates a signal having a frequency equal to a subharmonic of the carrier frequency signal. A transmitter is connected to the local oscillator, which uses the local oscillator signal to transmit outgoing data.
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: June 16, 2009
    Assignee: Skyworks Solutions, Inc.
    Inventors: William J. Domino, Scott A. Griffin, Dmitriy Rozenblit
  • Patent number: 7526265
    Abstract: Embodiments of a receiver impairment estimation and correction system and method that can be implemented in a low intermediate frequency receiver system are disclosed. In one embodiment, among others, a method for operating a receiver is disclosed that comprises receiving a radio frequency signal, downconverting the radio frequency signal to a downconverted signal comprising an in-phase component and quadrature-phase component, buffering the downconverted signal in a memory, estimating receiver impairments associated with the in-phase component and the quadrature-phase component for a defined time period, and compensating for the receiver impairments for each defined time period.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: April 28, 2009
    Assignee: Skyworks Solutions, Inc.
    Inventors: Norman J. Beamish, William J. Domino, Morten Damgaard
  • Patent number: 7512392
    Abstract: An adaptive band-pass filter for a wireless receiver comprises a band-pass filter associated with the receiver, the band-pass filter configured to selectively filter the received signal, and a switch responsive to a control signal, the switch configured to control the band-pass filter based on a level of the received signal.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: March 31, 2009
    Assignee: Skyworks Solutions, Inc.
    Inventors: Jason D. Millard, William J. Domino, James R. Snider
  • Patent number: 7480349
    Abstract: Embodiments of a low intermediate frequency system and method are disclosed. In one embodiment, among others, a method for operating a receiver is disclosed that comprises receiving a radio frequency signal, downconverting the radio frequency signal to a downconverted signal comprising an in-phase component and quadrature component, and estimating a gain and phase imbalance between the in-phase component and the quadrature component.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: January 20, 2009
    Assignee: Skyworks Solutions, Inc.
    Inventors: Norman J. Beamish, William J. Domino, Morten Damgaard
  • Patent number: 7400862
    Abstract: A transmit-receive switch architecture comprises a first switch coupled to transmit circuitry and to an antenna, a second switch coupled to receive circuitry and to ground, wherein the second switch is configured to couple the receive circuitry to ground during a time period in which a power source associated with the transmit circuitry is enabled.
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: July 15, 2008
    Assignee: Skyworks Solutions, Inc.
    Inventors: William J. Domino, Peter Hagn
  • Patent number: 7376116
    Abstract: A software defined transmit architecture includes a plurality of individually selectable components that can be selectively enabled to transmit a data signal that complies with any of a plurality of transmission standards. The software defined transmit architecture comprises components that can be enabled by associated logic to transmit, for example, communications signals that comply with the global system for mobile communications (GSM), enhanced data rates for GSM evolution (EDGE), which employs TDMA, and wide band code division multiple access (WCDMA) transmission standards. A single transmit architecture supports multiple transmission standards, thus minimizing the number of components in a multi-band, multi-mode portable transceiver, while reducing the number of active components.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: May 20, 2008
    Assignee: Skyworks Solutions, Inc.
    Inventors: Dmitriy Rozenblit, William J. Domino, Morten Damgaard, Rahul Magoon
  • Patent number: 7369871
    Abstract: A method for a closed power control feedback loop allows a single portable transceiver architecture to be used for systems in which a transmit signal including both a phase modulated (PM) component and an amplitude modulated (AM) component are supplied to a power amplifier and in systems in which the transmit signal has only a PM component supplied to a power amplifier. By injecting the inverse of the AM portion of the desired transmit signal into the closed power control feedback loop, the feedback loop will not cancel the AM portion of the signal, thus allowing a system where both a PM component and an AM component of the transmit signal are present at the output of the power amplifier to function using a closed power control feedback loop.
    Type: Grant
    Filed: August 10, 2004
    Date of Patent: May 6, 2008
    Assignee: Skyworks Solutions, Inc.
    Inventors: Nooshin D. Vakilian, Dmitriy Rozenblit, William J. Domino, Morten Damgaard
  • Patent number: 7277678
    Abstract: A system for a fast, closed power control loop that quickly adjusts the output power of a power amplifier in a non-constant amplitude modulation format. Embodiments of the invention allow fast and precise closed loop power control in a communication system that has a transmit signal that includes a phase modulated component and an amplitude modulated signal component. By detecting the level of the transmit signal before and after the power amplifier, the invention ignores changes in the amplitude of the transmit signal, resulting in an accurate measure of the power amplifier gain. The difference between the level of the transmit signal before and after the power amplifier provides a signal that represents the gain of the power amplifier. The gain signal is compared with a reference signal to develop an error signal. The error signal is used to control the output of the power amplifier.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: October 2, 2007
    Assignee: Skyworks Solutions, Inc.
    Inventors: Dmitriy Rozenblit, William J. Domino, Darioush Agahi
  • Patent number: 7218951
    Abstract: A single continuous closed-loop power control feedback system provides seamless power control for a power amplifier and also enables an AM signal to be injected into the power amplifier through the power amplifiers' control port. The AM signal is developed by an I/Q modulator and supplied to a comparator located in the power control loop. By using leakage from the power amplifier as feedback to a phase locked loop during initial power amplifier power ramp-up, the single continuous closed-loop power control system provides continuous feedback to the phase locked loop during the entire power amplification ramp-up period and eliminates the need for multiple feedback loops.
    Type: Grant
    Filed: July 6, 2004
    Date of Patent: May 15, 2007
    Assignee: Skyworks Solutions, Inc.
    Inventors: Dmitriy Rozenblit, Morten Damgaard, Russell J. Fagg, William J. Domino
  • Patent number: 7103127
    Abstract: Systems for controlling the frequency of the output signal of a controllable oscillator in a frequency synthesizer are provided. One such system comprises a controllable oscillator and a frequency control circuit. The controllable oscillator is configured to generate an output signal that has a predefined frequency. The controllable oscillator is also configured with a plurality of operational states that are controlled by the frequency control circuit. Each operational state of the controllable oscillator defines a distinct frequency for the output signal of the controllable oscillator. The frequency control circuit receives the output signal of the controllable oscillator and determines the distinct frequency for the output signal that best approximates the predefined frequency.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: September 5, 2006
    Assignee: Skyworks Solutions, Inc.
    Inventors: Morten Damgaard, William J. Domino, Rahul Magoon, Alyosha C. Molnar, Jeff Zachan
  • Patent number: 7099636
    Abstract: A single continuous closed-loop power control feedback system provides seamless power control for a power amplifier and also enables an AM signal to be injected into the power amplifier through the power amplifiers' control port. The AM signal is developed by an I/Q modulator and supplied to a comparator located in the power control loop. By using leakage from the power amplifier as feedback to a phase locked loop during initial power amplifier power ramp-up, the single continuous closed-loop power control system provides continuous feedback to the phase locked loop during the entire power amplification ramp-up period and eliminates the need for multiple feedback loops.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: August 29, 2006
    Assignee: Skyworks Solutions, Inc.
    Inventors: Dmitriy Rozenblit, Morten Damgaard, Russell J. Fagg, William J. Domino
  • Patent number: 7082169
    Abstract: A mirror translation loop upconverter that is capable of upconverting both constant envelope and non-constant envelope modulation formats is disclosed. Embodiments of the invention provide the ability to upconvert a transmit signal that includes only a phase-modulated component, only an amplitude-modulated component, or both a phase-modulated component and an amplitude-modulated component. If the transmit signal includes both a phase-modulated signal component and an amplitude-modulated signal component, the phase-modulated signal component and the amplitude-modulated signal component are supplied to a pair of phase shifters. The phase shifters alter the phase of the phase-modulated signal by an amount related to the amplitude of the amplitude-modulated signal. The phase shifters oppositely alter the phase of the phase-modulated signal, and therefore supply complementary phase versions of the phase-modulated signal.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: July 25, 2006
    Assignee: Skyworks Solutions, Inc.
    Inventors: Dmitriy Rozenblit, William J. Domino, Morten Damgaard
  • Patent number: 6961547
    Abstract: A translation loop signal upconverter is disclosed. Embodiments of the invention minimize nth order harmonics and spurious tones in the radio frequency output spectrum of a portable transceiver. In one embodiment, the invention is a signal upconverter, comprising a modulator configured to develop a modulated intermediate frequency (IF) signal at a fundamental frequency, the modulated IF signal also including a plurality of nth order components, a synchronous oscillator configured to receive the modulated IF signal, the synchronous oscillator also configured to operate at the fundamental frequency of the modulated IF signal, thereby providing an IF signal substantially free of the nth order components, and a translation loop having a phase locked loop, the translation loop configured to receive the IF signal output of the synchronous oscillator, and supply a radio frequency (RF) output signal to a power amplifier.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: November 1, 2005
    Assignee: Skyworks Solutions, Inc.
    Inventors: Dmitriy Rozenblit, William J. Domino, Rahul Magoon