Patents by Inventor Shahla Khorram
Shahla Khorram 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: 9408015Abstract: Systems and apparatuses are provided for negating the degradation effects of fundamental coupling between at least two near field communication (NFC) enabled devices, at least one of which can receive frequency modulation (FM) signals. Due to the fundamental coupling, strong NFC signals can mix with blocking signals associated with a desired/tuned-to FM frequency causing degradation in FM receiver performance. By utilizing a notch filter at the front end of the FM receiver, the degradation in FM receiver performance caused by the fundamental coupling phenomenon can be avoided.Type: GrantFiled: May 24, 2013Date of Patent: August 2, 2016Assignee: Broadcom CorporationInventors: Shahla Khorram, Fazal Haq, Thomas Francis Baker, Bojko Frederik Marholev, Razieh Roufoogaran
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Patent number: 8983418Abstract: Techniques and devices are disclosed to provide multi-stage gain control in circuits or devices having two or more stages of signal amplification. A circuit with multi-stage gain control can include amplification stages coupled to receive an input signal and to produce an amplified output signal. Each amplification stage includes an amplifier that is adjustable in gain and a signal detector that is coupled to measure an output signal of the amplifier and to produce a detector signal indicative of a signal strength of the output signal of the amplifier. A gain control circuit is coupled to receive detector signals from the signal detectors in the amplification stages, respectively, and to control gains of the amplifiers of the amplification stages based on respective received detector signals, respectively.Type: GrantFiled: June 20, 2011Date of Patent: March 17, 2015Assignee: Broadcom CorporationInventors: Amir Ibrahim, Henrik Tholstrup Jensen, Shahla Khorram, Aminghasem Safarian, Seema Anand
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Patent number: 8923780Abstract: Aspects of a method and system for sharing low noise amplifier (LNA) circuitry in a single chip Bluetooth and wireless local area network (WLAN) system are disclosed. Aspects of the system may comprise a chip with integrated WLAN and Bluetooth radios. RF signals may be received via a single antenna coupled to a shared LNA integrated in chip. When WLAN signals are received they are communicated from the shared LNA to a subsequent amplification stage integrated within the WLAN radio. When Bluetooth signals are received they are communicated from the shared LNA to a subsequent amplification stage that comprises a transconductance amplifier integrated within the WLAN radio and an LNA load integrated within the Bluetooth radio. Gains in the LNAs, the transconductance amplifier, and/or the subsequent WLAN amplification stage may be dynamically adjusted. Outputs from the subsequent amplification stages may be communicated to mixers for further processing.Type: GrantFiled: January 12, 2007Date of Patent: December 30, 2014Assignee: Broadcom CorporationInventors: Adedayo Ojo, Bojko Marholev, Shahla Khorram
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Publication number: 20140329462Abstract: Systems and apparatuses are provided for negating the degradation effects of fundamental coupling between at least two near field communication (NFC) enabled devices, at least one of which can receive frequency modulation (FM) signals. Due to the fundamental coupling, strong NFC signals can mix with blocking signals associated with a desired/tuned-to FM frequency causing degradation in FM receiver performance. By utilizing a notch filter at the front end of the FM receiver, the degradation in FM receiver performance caused by the fundamental coupling phenomenon can be avoided.Type: ApplicationFiled: May 24, 2013Publication date: November 6, 2014Applicant: Broadcom CorporationInventors: Shahla Khorram, Fazal Haq, Thomas Francis Baker, Bojko Frederik Marholev, Razieh Roufoogaran
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Patent number: 8768284Abstract: An integrated circuit includes an analog module, digital circuitry, and a border section. The analog module is susceptible to noise and is on a substrate of the integrated circuit. The digital circuitry generates the noise and is on the substrate. The border section is on the substrate and physically separates the analog module from the digital circuitry.Type: GrantFiled: July 6, 2006Date of Patent: July 1, 2014Assignee: Broadcom CorporationInventor: Shahla Khorram
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Publication number: 20120319774Abstract: Techniques and devices are disclosed to provide multi-stage gain control in circuits or devices having two or more stages of signal amplification. A circuit with multi-stage gain control can include amplification stages coupled to receive an input signal and to produce an amplified output signal. Each amplification stage includes an amplifier that is adjustable in gain and a signal detector that is coupled to measure an output signal of the amplifier and to produce a detector signal indicative of a signal strength of the output signal of the amplifier. A gain control circuit is coupled to receive detector signals from the signal detectors in the amplification stages, respectively, and to control gains of the amplifiers of the amplification stages based on respective received detector signals, respectively.Type: ApplicationFiled: June 20, 2011Publication date: December 20, 2012Applicant: BROADCOM CORPORATIONInventors: Amir Ibrahim, Henrik Tholstrup Jensen, Shahla Khorram, Aminghasem Safarian, Seema Anand
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Patent number: 8116677Abstract: An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged for integration into a single IC including components such as filters and inductors. The controller for adaptive programming and calibration of the receiver, transmitter and LO generator. The self-testing unit generates is used to determine the gain, frequency characteristics, selectivity, noise floor, and distortion behavior of the receiver, transmitter and LO generator. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.Type: GrantFiled: August 24, 2010Date of Patent: February 14, 2012Assignee: Broadcom CorporationInventors: Ahmadreza Rofougaran, Maryam Rofougaran, Meng-An Pan, Hung-Ming Chien, Shahla Khorram, William T. Colleran, Jacob Rael, Masood Syed, Brima Ibrahim, Stephen Wu, Shervin Moloudi
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Patent number: 8116690Abstract: An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged for integration into a single IC including components such as filters and inductors. The controller for adaptive programming and calibration of the receiver, transmitter and LO generator. The self-testing unit generates is used to determine the gain, frequency characteristics, selectivity, noise floor, and distortion behavior of the receiver, transmitter and LO generator. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.Type: GrantFiled: March 25, 2008Date of Patent: February 14, 2012Assignee: Broadcom CorporationInventors: Ahmadreza Rofougaran, Maryam Rofougaran, Shahla Khorram
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Patent number: 8041294Abstract: An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged for integration into a single IC including components such as filters and inductors. The controller for adaptive programming and calibration of the receiver, transmitter and LO generator. The self-testing unit generates is used to determine the gain, frequency characteristics, selectivity, noise floor, and distortion behavior of the receiver, transmitter and LO generator. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.Type: GrantFiled: June 26, 2009Date of Patent: October 18, 2011Assignee: Broadcom CorporationInventors: Ahmadreza Rofougaran, Maryam Rofougaran, Brima Ibrahim, Jacob Rael, Shahla Khorram, Shervin Moloudi, Stephen Wu, Hooman Darabi, William T. Colleran, Ed Chien, Meng-An Pan
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Patent number: 8000664Abstract: A linear high powered integrated circuit amplifier includes a plurality of power amplifiers, balanced integrated circuit coupling, and a combining circuit. The balanced integrated circuit coupling couples a signal to the plurality of power amplifiers to the up-conversion module such that the power amplifiers amplify the signal to produce a plurality of amplified radio frequency (RF) signals. The combining circuit is operably coupled to combine the plurality of amplified RF signals to produce a high-powered amplified signal.Type: GrantFiled: June 15, 2009Date of Patent: August 16, 2011Assignee: Broadcom CorporationInventor: Shahla Khorram
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Publication number: 20110053522Abstract: An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged for integration into a single IC including components such as filters and inductors. The controller for adaptive programming and calibration of the receiver, transmitter and LO generator. The self-testing unit generates is used to determine the gain, frequency characteristics, selectivity, noise floor, and distortion behavior of the receiver, transmitter and LO generator. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.Type: ApplicationFiled: August 24, 2010Publication date: March 3, 2011Applicant: BROADCOM CORPORATIONInventors: Ahmadreza Rofougaran, Maryam Rofougaran, Meng-An Pan, Hung-Ming Chien, Shahla Khorram, William T. Colleran, Jacob Rael, Masood Syed, Brima Ibrahim, Stephen Wu, Shervin Moloudi
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Publication number: 20110007843Abstract: An FM transmitter operates at low power by maintaining a substantially constant transmit voltage over the FM frequency band. A transmit signal strength indicator (TSSI) is provided at the output of the FM transmitter to measure the power at the output of the power amplifier. The TSSI generates a power control signal indicative of the output power and inputs the power control signal to the baseband processor. The baseband processor generates gain control signals to control the gain of various analog stages of the FM transmitter based on the power control signal.Type: ApplicationFiled: July 7, 2009Publication date: January 13, 2011Applicant: BROADCOM CORPORATIONInventors: Shahla Khorram, Frank (Bo-Shiou) Ke, Amir Ibrahim
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Patent number: 7783251Abstract: An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged for integration into a single IC including components such as filters and inductors. The controller for adaptive programming and calibration of the receiver, transmitter and LO generator. The self-testing unit generates is used to determine the gain, frequency characteristics, selectivity, noise floor, and distortion behavior of the receiver, transmitter and LO generator. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.Type: GrantFiled: July 31, 2008Date of Patent: August 24, 2010Assignee: Broadcom CorporationInventors: Ahmadreza Rofougaran, Maryam Rofougaran, Meng-An Pan, Hung-Ming Chien, Shahla Khorram, William T. Colleran, Jacob Rael, Masood Syed, Brima Ibrahim, Stephen Wu, Shervin Moloudi
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Patent number: 7756472Abstract: An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged for integration into a single IC including components such as filters and inductors. The controller for adaptive programming and calibration of the receiver, transmitter and LO generator. The self-testing unit generates is used to determine the gain, frequency characteristics, selectivity, noise floor, and distortion behavior of the receiver, transmitter and LO generator. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.Type: GrantFiled: June 17, 2008Date of Patent: July 13, 2010Assignee: Broadcom CorporationInventors: Hooman Darabi, Ahmadreza Rofougaran, Shahla Khorram, Brima Ibrahim
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Publication number: 20090286487Abstract: An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged for integration into a single IC including components such as filters and inductors. The controller for adaptive programming and calibration of the receiver, transmitter and LO generator. The self-testing unit generates is used to determine the gain, frequency characteristics, selectivity, noise floor, and distortion behavior of the receiver, transmitter and LO generator. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.Type: ApplicationFiled: June 26, 2009Publication date: November 19, 2009Applicant: Broadcom CorporationInventors: Ahmadreza Rofougaran, Maryam Rofougaran, Brima Ibrahim, Jacob Rael, Shahla Khorram, Shervin Moloudi, Stephen Wu, Hooman Darabi, William T. Colleran, Ed Chien, Meng-An Pan
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Publication number: 20090251222Abstract: A linear high powered integrated circuit amplifier includes a plurality of power amplifiers, balanced integrated circuit coupling, and a combining circuit. The balanced integrated circuit coupling couples a signal to the plurality of power amplifiers to the up-conversion module such that the power amplifiers amplify the signal to produce a plurality of amplified radio frequency (RF) signals. The combining circuit is operably coupled to combine the plurality of amplified RF signals to produce a high-powered amplified signal.Type: ApplicationFiled: June 15, 2009Publication date: October 8, 2009Applicant: BROADCOM CORPORATIONInventor: Shahla Khorram
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Patent number: 7583212Abstract: A radio frequency integrated circuit (RFIC) includes a digital to analog converter, an analog to digital converter, and a low noise amplifier. The digital to analog converter (DAC) is operably coupled to convert outbound symbols into outbound baseband signals, wherein the digital to analog converter is fabricated within a DAC portion of a substrate of the RFIC. The analog to digital converter (ADC) is operably coupled to convert inbound baseband signals into inbound symbols, wherein the analog to digital converter is fabricated within an ADC portion of the substrate. The low noise amplifier is operably coupled to amplify an inbound radio frequency (RF) signals. The low noise amplifier is fabricated within a radio portion of the substrate, wherein the DAC portion of the substrate is physically between the ADC portion and the radio portion of the substrate to provide isolation when the low noise amplifier and the ADC are active and the DAC is inactive.Type: GrantFiled: October 22, 2007Date of Patent: September 1, 2009Assignee: Broadcom CorporationInventor: Shahla Khorram
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Patent number: 7555263Abstract: An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged for integration into a single IC including components such as filters and inductors. The controller for adaptive programming and calibration of the receiver, transmitter and LO generator. The self-testing unit generates is used to determine the gain, frequency characteristics, selectivity, noise floor, and distortion behavior of the receiver, transmitter and LO generator. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.Type: GrantFiled: August 8, 2000Date of Patent: June 30, 2009Assignee: Broadcom CorporationInventors: Ahmadreza Rofougaran, Maryam Rofougaran, Brima Ibrahim, Jacob Rael, Shahla Khorram, Shervin Moloudi, Stephen Wu, Hooman Darabi, William T. Colleran, Ed Chien, Meng-An Pan
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Patent number: 7551901Abstract: A linear high powered integrated circuit amplifier includes a plurality of power amplifiers, balanced integrated circuit coupling, and a combining circuit. The balanced integrated circuit coupling couples a signal to the plurality of power amplifiers to the up-conversion module such that the power amplifiers amplify the signal to produce a plurality of amplified radio frequency (RF) signals. The combining circuit is operably coupled to combine the plurality of amplified RF signals to produce a high-powered amplified signal.Type: GrantFiled: November 16, 2005Date of Patent: June 23, 2009Assignee: Broadcom CorporationInventor: Shahla Khorram
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Patent number: 7522394Abstract: A radio frequency integrated circuit (RFIC) having sectional electrostatic discharge (ESD) protection includes an analog receive section, an analog transmit section, a digital section, a first inductor assembly and a second inductor assembly. The analog receive section is operably coupled to convert inbound RF signals into inbound low IF signals and includes an analog receive ground connection. The analog transmit section is operably coupled to convert outbound low IF signals into outbound RF signals and includes an analog transmit ground connection. The digital section is operably coupled to convert the inbound low IF signals into inbound digital baseband signals and to convert outbound digital baseband signals into the outbound low IF signals, wherein the digital section has a digital ground connection. The first inductor assembly operably couples the analog receive ground connection to the digital ground connection.Type: GrantFiled: August 21, 2003Date of Patent: April 21, 2009Assignee: Broadcom CorporationInventor: Shahla Khorram