Patents by Inventor Noshir Dubash
Noshir Dubash 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).
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Patent number: 11641155Abstract: Certain aspects of the present disclosure provide apparatus and techniques for wireless communication implemented with harmonic cancellation. One example implementation includes a polar transmitter having at least one amplifier having an input configured to receive a phase-modulated signal to be amplified based on an amplitude-modulated signal, a harmonic cancellation circuit coupled to the input of the at least one amplifier, the harmonic cancellation circuit being configured to cancel at least one of an even harmonic or an odd harmonic of a transmission signal at an output of the polar transmitter, a controller having an output coupled to one or more control inputs of the harmonic cancellation circuit, and a feedback path between an output of the at least one amplifier and an input of the controller.Type: GrantFiled: April 22, 2020Date of Patent: May 2, 2023Assignee: QUALCOMM IncorporatedInventors: Seyyed Amir Ayati, Noshir Dubash, Zaid Aboush
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Patent number: 11271662Abstract: A method for low power communication links between wireless devices is described. The method includes establishing, by a first wireless device, a first magnetic communication link to a source wireless device through a human body. The method also includes establishing, by a second wireless device, a second magnetic communication link to the source wireless device through the human body. The method also includes receiving, by the first wireless device via the first magnetic communication link and the second wireless device via the second magnetic communication link, communications from the source wireless device through the human body.Type: GrantFiled: June 11, 2019Date of Patent: March 8, 2022Assignee: QUALCOMM INCORPORATEDInventors: Noshir Dubash, Jeffrey Koeller, Luis Briones
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Publication number: 20210336526Abstract: Certain aspects of the present disclosure provide apparatus and techniques for wireless communication implemented with harmonic cancellation. One example implementation includes a polar transmitter having at least one amplifier having an input configured to receive a phase-modulated signal to be amplified based on an amplitude-modulated signal, a harmonic cancellation circuit coupled to the input of the at least one amplifier, the harmonic cancellation circuit being configured to cancel at least one of an even harmonic or an odd harmonic of a transmission signal at an output of the polar transmitter, a controller having an output coupled to one or more control inputs of the harmonic cancellation circuit, and a feedback path between an output of the at least one amplifier and an input of the controller.Type: ApplicationFiled: April 22, 2020Publication date: October 28, 2021Inventors: Seyyed Amir AYATI, Noshir DUBASH, Zaid ABOUSH
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Publication number: 20200396011Abstract: A method for low power communication links between wireless devices is described. The method includes establishing, by a first wireless device, a first magnetic communication link to a source wireless device through a human body. The method also includes establishing, by a second wireless device, a second magnetic communication link to the source wireless device through the human body. The method also includes receiving, by the first wireless device via the first magnetic communication link and the second wireless device via the second magnetic communication link, communications from the source wireless device through the human body.Type: ApplicationFiled: June 11, 2019Publication date: December 17, 2020Inventors: Noshir Dubash, Jeffrey Koeller, Luis Briones
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Patent number: 9577688Abstract: A radio frequency (RF) receiver that includes a low noise amplifier (LNA), a tunable resonant circuit, and a processor for performing calibration of the RF receiver. The processor is configured to sweep the tunable resonant circuit through a dynamic range of resonant frequency settings while estimating noise signal output power at the LNA at each setting. The processor is also configured to set the tunable resonant circuit to the setting that produces the greatest noise signal power output at the LNA.Type: GrantFiled: February 24, 2015Date of Patent: February 21, 2017Assignee: QUALCOMM TECHNOLOGIES INTERNATIONAL, LTD.Inventors: Fedor Danilenko, Noshir Dubash, Jeffrey Koeller
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Publication number: 20160248462Abstract: A radio frequency (RF) receiver that includes a low noise amplifier (LNA), a tunable resonant circuit, and a processor for performing calibration of the RF receiver. The processor is configured to sweep the tunable resonant circuit through a dynamic range of resonant frequency settings while estimating noise signal output power at the LNA at each setting. The processor is also configured to set the tunable resonant circuit to the setting that produces the greatest noise signal power output at the LNA.Type: ApplicationFiled: February 24, 2015Publication date: August 25, 2016Inventors: Fedor Danilenko, Noshir Dubash, Jeffrey Koeller
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Patent number: 9362966Abstract: Tuners, multi-tuner receivers and methods of configuring multiple tuners are provided. A tuner on an integrated circuit includes an RF amplifier configured to be coupled to an antenna to amplify an RF signal received from the antenna, a bidirectional port configured to be coupled to another tuner and a bidirectional port circuit coupled between the RF amplifier and the bidirectional port. The bidirectional port circuit includes signal routing circuitry and a programmable control that is configured to control the signal routing circuitry to implement one of an input port, an output port or a disabled port.Type: GrantFiled: March 31, 2015Date of Patent: June 7, 2016Assignee: QUALCOMM TECHNOLOGIES INTERNATIONAL, LTD.Inventors: Charles Matsumoto, Noshir Dubash, Michael Schödel, Jeff Koeller, Luis Briones
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Patent number: 9214972Abstract: In general, the present invention relates to an adaptive IF filter for a multiband receiver. According to certain aspects, the adaptive IF filter can be dynamically configured as a low-pass architecture or a complex band-pass architecture. According to further aspects, the adaptive IF filter enables a wideband receiver which can simultaneously receive multiple frequency bands, but still protect itself from close-in or in-band jammers by selecting a single frequency band or subset of frequency bands. This retains the multiband functionality of the receiver under nominal conditions, which is traded off dynamically for a single-frequency-band with high jammer resistance under severe jamming conditions. According to still further aspects, the approach of the invention is particularly useful for GNSS receivers, since unlike a cellular transceiver, a temporary loss of signal is not catastrophic to GNSS receivers due to the long integration times.Type: GrantFiled: June 13, 2013Date of Patent: December 15, 2015Assignee: QUALCOMM TECHNOLOGIES INTERNATIONAL, LTD.Inventors: Noshir Dubash, Joakim Landmark
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Patent number: 8923779Abstract: Systems and methods for tuning an antenna for a frequency modulation (FM) transceiver are provided. A representative system includes: a network of electrical adjustable passive components that receives and sends radio frequency (RF) signals to a receiver circuitry via the network of electrical adjustable passive components. The receiver circuitry determines the received signal strength indication (RSSI) of the RF signal. The system further includes a transmitter circuitry that transmits RF signals via the network of electrical adjustable passive components, and a peak detector circuitry that receives and determines a voltage output of the RF signals from the variable capacitors. An auto-tune circuitry receives the RSSI and output value from the receiver circuitry and the peak detector circuitry, respectively.Type: GrantFiled: August 20, 2012Date of Patent: December 30, 2014Assignee: CSR Technology Inc.Inventors: Noshir Dubash, Thomas E. Ricks, Jr., Richard J. McConnell
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Publication number: 20140369452Abstract: In general, the present invention relates to an adaptive IF filter for a multiband receiver. According to certain aspects, the adaptive IF filter can be dynamically configured as a low-pass architecture or a complex band-pass architecture. According to further aspects, the adaptive IF filter enables a wideband receiver which can simultaneously receive multiple frequency bands, but still protect itself from close-in or in-band jammers by selecting a single frequency band or subset of frequency bands. This retains the multiband functionality of the receiver under nominal conditions, which is traded off dynamically for a single-frequency-band with high jammer resistance under severe jamming conditions. According to still further aspects, the approach of the invention is particularly useful for GNSS receivers, since unlike a cellular transceiver, a temporary loss of signal is not catastrophic to GNSS receivers due to the long integration times.Type: ApplicationFiled: June 13, 2013Publication date: December 18, 2014Inventors: Noshir DUBASH, Joakim LANDMARK
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Patent number: 8634793Abstract: A radio frequency receiver on an integrated circuit (RFIC) includes an oscillator circuit, which generates a radio frequency (RF) oscillatory signal having a predetermined frequency that is outside of an intermediate frequency passband of the RFIC. An amplitude modulator modulates the RF oscillatory signal to produce an amplitude modulated signal which is applied to a mixer that downconverts the amplitude modulated signal. A calibration circuit receives the downconverted signal, including second order modulation (IM2) products, and, responsive to the IM2 products, generates a bias signal that is applied to the mixer to reduce the IM2 products.Type: GrantFiled: May 10, 2010Date of Patent: January 21, 2014Assignee: CSR Technology Inc.Inventors: Joakim Landmark, Noshir Dubash, Daniel Babitch
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Patent number: 8514982Abstract: Systems and methods for mitigating multipath signals in a receiver are provided. In this regard, a representative system, among others, includes a radio frequency (RF) front-end and at least one analog-to-digital converter (ADC). The RF front-end receives FM signals and down-converts the received frequency signals to intermediate frequency (IF) signals. The analog-to-digital converter (ADC) receives the intermediate frequency signals and digitizes multiple FM channels around a desired FM channel associated with the down-converted signals. The system further includes multiple sets of digital processing components that are configured to simultaneously receive and process the digitized multiple channels. The multiple sets of digital processing components include at least two parallel channel selection and demodulation paths in which the respective digitized multiple channels are processed therethrough.Type: GrantFiled: December 12, 2008Date of Patent: August 20, 2013Assignee: CSR Technology, IncInventors: Noshir Dubash, Siva Bonasu, Peter Naji, Douglas W. Schucker
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Publication number: 20130210373Abstract: Systems and methods for tuning an antenna for a frequency modulation (FM) transceiver are provided. A representative system includes: a network of electrical adjustable passive components that receives and sends radio frequency (RF) signals to a receiver circuitry via the network of electrical adjustable passive components. The receiver circuitry determines the received signal strength indication (RSSI) of the RF signal. The system further includes a transmitter circuitry that transmits RF signals via the network of electrical adjustable passive components, and a peak detector circuitry that receives and determines a voltage output of the RF signals from the variable capacitors. An auto-tune circuitry receives the RSSI and output value from the receiver circuitry and the peak detector circuitry, respectively.Type: ApplicationFiled: August 20, 2012Publication date: August 15, 2013Applicant: CSR TECHNOLOGY INC.Inventors: Noshir Dubash, Thomas E. Ricks, JR., Richard J. McConnell
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Patent number: 8351885Abstract: A Radio Frequency Receiver on a Single Integrated Circuit (“RFSIC”) is described. The RFSIC may include a mixer, a phase-locked loop (“PLL”) in signal communication with the mixer, and an on-chip auto-tuned RF filter in signal communication with both the mixer and PPL, such that the same PLL simultaneously tunes the frequency of the VCO and the frequency response of the auto-tuned RF filter.Type: GrantFiled: October 28, 2011Date of Patent: January 8, 2013Assignee: CSR Technology Inc.Inventors: Noshir Dubash, Jeffrey E. Koeller, Daniel Babitch
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Patent number: 8335471Abstract: Systems and methods for channel pairing a transmitter and a receiver are provided. In this regard, a representative method, among others, includes selecting a channel in a radio frequency (RF) band; transmitting a carrier and alert tone on the selected channel in the RF band; responsive to detecting the transmitted carrier and alert tone, demodulating the carrier and alert tone on the selected channel in the RF band and producing the demodulated alert tone; and responsive to detecting the produced alert tone, using the selected channel to establish a wireless link between the transmitter and receiver.Type: GrantFiled: December 11, 2008Date of Patent: December 18, 2012Assignee: CSR Technology, Inc.Inventors: Ronald Clayton Alford, Noshir Dubash, Douglas W. Schucker
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Publication number: 20120274427Abstract: A Radio Frequency Receiver on a Single Integrated Circuit (“RFSIC”) is described. The RFSIC may include a mixer, a phase-locked loop (“PLL”) in signal communication with the mixer, and an on-chip auto-tuned RF filter in signal communication with both the mixer and PPL, such that the same PLL simultaneously tunes the frequency of the VCO and the frequency response of the auto-tuned RF filter.Type: ApplicationFiled: October 28, 2011Publication date: November 1, 2012Applicant: SiRF Technology Inc.Inventors: Noshir Dubash, Jeffrey E. Koeller, Daniel Babitch
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Patent number: 8270921Abstract: Systems and methods for tuning an antenna for a frequency modulation (FM) transceiver are provided. A representative system includes: a network of electrical adjustable passive components that receives and sends radio frequency (RF) signals to a receiver circuitry via the network of electrical adjustable passive components. The receiver circuitry determines the received signal strength indication (RSSI) of the RF signal. The system further includes a transmitter circuitry that transmits RF signals via the network of electrical adjustable passive components, and a peak detector circuitry that receives and determines a voltage output of the RF signals from the variable capacitors. An auto-tune circuitry receives the RSSI and output value from the receiver circuitry and the peak detector circuitry, respectively.Type: GrantFiled: April 27, 2009Date of Patent: September 18, 2012Assignee: CSR Technology Inc.Inventors: Noshir Dubash, Thomas E. Ricks, Jr., Richard J. McConnell
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Patent number: 8073414Abstract: A Radio Frequency Receiver on a Single Integrated Circuit (“RFSIC”) is described. The RFSIC may include a mixer, a phase-locked loop (“PLL”) in signal communication with the mixer, and an on-chip auto-tuned RF filter in signal communication with both the mixer and PPL, such that the same PLL simultaneously tunes the frequency of the VCO and the frequency response of the auto-tuned RF filter.Type: GrantFiled: December 22, 2008Date of Patent: December 6, 2011Assignee: SiRF Technology Inc.Inventors: Noshir Dubash, Jeffrey E. Koeller, Daniel Babitch
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Publication number: 20110275341Abstract: A radio frequency receiver on an integrated circuit (RFIC) includes an oscillator circuit, which generates a radio frequency (RF) oscillatory signal having a predetermined frequency that is outside of an intermediate frequency passband of the RFIC. An amplitude modulator modulates the RF oscillatory signal to produce an amplitude modulated signal which is applied to a mixer that downconverts the amplitude modulated signal. A calibration circuit receives the downconverted signal, including second order modulation (IM2) products, and, responsive to the IM2 products, generates a bias signal that is applied to the mixer to reduce the IM2 products.Type: ApplicationFiled: May 10, 2010Publication date: November 10, 2011Applicant: SiRF Technology Inc.Inventors: Joakim Landmark, Noshir Dubash, Daniel Babitch
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Publication number: 20100273441Abstract: Systems and methods for tuning an antenna for a frequency modulation (FM) transceiver are provided. A representative system includes: a network of electrical adjustable passive components that receives and sends radio frequency (RF) signals to a receiver circuitry via the network of electrical adjustable passive components. The receiver circuitry determines the received signal strength indication (RSSI) of the RF signal. The system further includes a transmitter circuitry that transmits RF signals via the network of electrical adjustable passive components, and a peak detector circuitry that receives and determines a voltage output of the RF signals from the variable capacitors. An auto-tune circuitry receives the RSSI and output value from the receiver circuitry and the peak detector circuitry, respectively.Type: ApplicationFiled: April 27, 2009Publication date: October 28, 2010Applicant: SIRF Technology, Inc.Inventors: Noshir Dubash, Thomas E. Ricks, JR., Richard J. McConnell