Patents by Inventor Hasan Akyol
Hasan Akyol 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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Publication number: 20160118942Abstract: A power amplifier circuit includes an amplifier MOSFET and a predistorter MOSFET. The predistorter MOSFET source and drain are connected together, and the predistorter MOSFET is connected between the gate of the amplifier MOSFET and a second bias voltage signal. This biasing of the predistorter MOSFET causes it to provide a nonlinear capacitance at the gate of the amplifier MOSFET. The combined non-linear capacitances of the amplifier MOSFET and predistorter MOSFET provide predistortion that promotes cancellation of the distortion or nonlinearity contributed by the amplifier MOSFET alone.Type: ApplicationFiled: December 18, 2015Publication date: April 28, 2016Inventors: Hamid R. Amir Firouzkouhi, Bipul Agarwal, Hasan Akyol
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Patent number: 9285207Abstract: A method and system for measuring displacement of a structure is disclosed. The method and system comprise providing a first capacitance and providing a second capacitance. The first and second capacitances share a common terminal. The method and system further include determining a difference of the inverses of the value of the first and second capacitances when the structure is displaced. The first capacitance varies in inverse relation to the displacement of the structure.Type: GrantFiled: July 26, 2013Date of Patent: March 15, 2016Assignee: INVENSENSE, INC.Inventors: Baris Cagdaser, Du Chen, Hasan Akyol, Derek Shaeffer
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Patent number: 9252719Abstract: A power amplifier circuit includes an amplifier MOSFET and a predistorter MOSFET. The predistorter MOSFET source and drain are connected together, and the predistorter MOSFET is connected between the gate of the amplifier MOSFET and a second bias voltage signal. This biasing of the predistorter MOSFET causes it to provide a nonlinear capacitance at the gate of the amplifier MOSFET. The combined non-linear capacitances of the amplifier MOSFET and predistorter MOSFET provide predistortion that promotes cancellation of the distortion or nonlinearity contributed by the amplifier MOSFET alone.Type: GrantFiled: April 24, 2015Date of Patent: February 2, 2016Assignee: Skyworks Solutions, Inc.Inventors: Hamid R. Amir Firouzkouhi, Bipul Agarwal, Hasan Akyol
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Publication number: 20160018838Abstract: A dB-linear voltage-to-current (V/I) converter is amenable to implementation in CMOS technology. In a representative embodiment, the dB-linear V/I converter has a voltage scaler, a current multiplier, and an exponential current converter serially connected to one another. The voltage scaler supplies an input current to the current multiplier based on an input voltage. The current multiplier multiplies the input current and a current proportional to absolute temperature and supplies the resulting current to the exponential current converter. The exponential current converter has a differential MOSFET pair operating in a sub-threshold mode and generating an output current that is proportional to a temperature-independent, exponential function of the input voltage.Type: ApplicationFiled: July 22, 2015Publication date: January 21, 2016Inventors: Hasan Akyol, Bipul Agarwal, Dean Badillo
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Patent number: 9124230Abstract: A dB-linear voltage-to-current (V/I) converter that is amenable to implementation in CMOS technology. In a representative embodiment, the dB-linear V/I converter has a voltage scaler, a current multiplier, and an exponential current converter serially connected to one another. The voltage scaler supplies an input current to the current multiplier based on an input voltage. The current multiplier multiplies the input current and a current proportional to absolute temperature and supplies the resulting current to the exponential current converter. The exponential current converter has a differential MOSFET pair operating in a sub-threshold mode and generating an output current that is proportional to a temperature-independent, exponential function of the input voltage.Type: GrantFiled: October 26, 2011Date of Patent: September 1, 2015Assignee: Skyworks Solutions, Inc.Inventors: Hasan Akyol, Bipul Agarwal, Dean Badillo
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Publication number: 20150229279Abstract: A power amplifier circuit includes an amplifier MOSFET and a predistorter MOSFET. The predistorter MOSFET source and drain are connected together, and the predistorter MOSFET is connected between the gate of the amplifier MOSFET and a second bias voltage signal. This biasing of the predistorter MOSFET causes it to provide a nonlinear capacitance at the gate of the amplifier MOSFET. The combined non-linear capacitances of the amplifier MOSFET and predistorter MOSFET provide predistortion that promotes cancellation of the distortion or nonlinearity contributed by the amplifier MOSFET alone.Type: ApplicationFiled: April 24, 2015Publication date: August 13, 2015Inventors: Hamid R. Amir Firouzkouhi, Bipul Agarwal, Hasan Akyol
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Patent number: 9048802Abstract: A power amplifier circuit includes an amplifier MOSFET and a predistorter MOSFET. The predistorter MOSFET source and drain are connected together, and the predistorter MOSFET is connected between the gate of the amplifier MOSFET and a second bias voltage signal. This biasing of the predistorter MOSFET causes it to provide a nonlinear capacitance at the gate of the amplifier MOSFET. The combined non-linear capacitances of the amplifier MOSFET and predistorter MOSFET provide predistortion that promotes cancellation of the distortion or nonlinearity contributed by the amplifier MOSFET alone.Type: GrantFiled: February 16, 2012Date of Patent: June 2, 2015Assignee: Skyworks Solutions, Inc.Inventors: Hamid R. Amir Firouzkouhi, Bipul Agarwal, Hasan Akyol
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Publication number: 20140266256Abstract: A method and system for measuring displacement of a structure is disclosed. The method and system comprise providing a first capacitance and providing a second capacitance. The first and second capacitances share a common terminal. The method and system further include determining a difference of the inverses of the value of the first and second capacitances when the structure is displaced. The first capacitance varies in inverse relation to the displacement of the structure.Type: ApplicationFiled: July 26, 2013Publication date: September 18, 2014Applicant: InvenSense, Inc.Inventors: Baris CAGDASER, Du CHEN, Hasan AKYOL, Derek SHAEFFER
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Publication number: 20130001550Abstract: A system and method for providing a MEMS device with integrated electronics are disclosed. The MEMS device comprises an integrated circuit substrate and a MEMS subassembly coupled to the integrated circuit substrate. The integrated circuit substrate includes at least one circuit coupled to at least one fixed electrode. The MEMS subassembly includes at least one standoff formed by a lithographic process, a flexible plate with a top surface and a bottom surface, and a MEMS electrode coupled to the flexible plate and electrically coupled to the at least one standoff. A force acting on the flexible plate causes a change in a gap between the MEMS electrode and the at least one fixed electrode.Type: ApplicationFiled: June 28, 2012Publication date: January 3, 2013Applicant: INVENSENSE, INC.Inventors: Joseph SEEGER, Igor TCHERTKOV, Hasan AKYOL, Goksen G. YARALIOGLU, Steven S. NASIRI, Ilya GURIN
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Publication number: 20120149316Abstract: A power amplifier circuit includes an amplifier MOSFET and a predistorter MOSFET. The predistorter MOSFET source and drain are connected together, and the predistorter MOSFET is connected between the gate of the amplifier MOSFET and a second bias voltage signal. This biasing of the predistorter MOSFET causes it to provide a nonlinear capacitance at the gate of the amplifier MOSFET. The combined non-linear capacitances of the amplifier MOSFET and predistorter MOSFET provide predistortion that promotes cancellation of the distortion or nonlinearity contributed by the amplifier MOSFET alone.Type: ApplicationFiled: February 16, 2012Publication date: June 14, 2012Applicant: SKYWORKS SOLUTIONS, INC.Inventors: Hamid R. AMIR FIROUZKOUHI, Bipul AGARWAL, Hasan AKYOL
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Publication number: 20120038418Abstract: A dB-linear voltage-to-current (V/I) converter that is amenable to implementation in CMOS technology. In a representative embodiment, the dB-linear V/I converter has a voltage scaler, a current multiplier, and an exponential current converter serially connected to one another. The voltage scaler supplies an input current to the current multiplier based on an input voltage. The current multiplier multiplies the input current and a current proportional to absolute temperature and supplies the resulting current to the exponential current converter. The exponential current converter has a differential MOSFET pair operating in a sub-threshold mode and generating an output current that is proportional to a temperature-independent, exponential function of the input voltage.Type: ApplicationFiled: October 26, 2011Publication date: February 16, 2012Applicant: SKYWORKS SOLUTIONS, INC.Inventors: Hasan Akyol, Bipul Agarwal, Dean Badillo
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Patent number: 8072245Abstract: A dB-linear voltage-to-current (V/I) converter that is amenable to implementation in CMOS technology. In a representative embodiment, the dB-linear V/I converter has a voltage scaler, a current multiplier, and an exponential current converter serially connected to one another. The voltage scaler supplies an input current to the current multiplier based on an input voltage. The current multiplier multiplies the input current and a current proportional to absolute temperature and supplies the resulting current to the exponential current converter. The exponential current converter has a differential MOSFET pair operating in a sub-threshold mode and generating an output current that is proportional to a temperature-independent, exponential function of the input voltage.Type: GrantFiled: February 2, 2009Date of Patent: December 6, 2011Assignee: Skyworks Solutions, Inc.Inventors: Hasan Akyol, Bipul Agarwal, Dean Badillo
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Publication number: 20100194443Abstract: A dB-linear voltage-to-current (V/I) converter that is amenable to implementation in CMOS technology. In a representative embodiment, the dB-linear V/I converter has a voltage scaler, a current multiplier, and an exponential current converter serially connected to one another. The voltage scaler supplies an input current to the current multiplier based on an input voltage. The current multiplier multiplies the input current and a current proportional to absolute temperature and supplies the resulting current to the exponential current converter. The exponential current converter has a differential MOSFET pair operating in a sub-threshold mode and generating an output current that is proportional to a temperature-independent, exponential function of the input voltage.Type: ApplicationFiled: February 2, 2009Publication date: August 5, 2010Applicant: Skyworks Solutions, Inc.Inventors: Hasan Akyol, Bipul Agarwal, Dean Badillo
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Patent number: 6571578Abstract: A reversible ornamental article of jewelry having a plurality of ornamental links hinge ably secured to one another to form a flexible strand of jewelry, which can be in the form of a necklace or bracelet. The geometric configurations of the links in one planar surface differ from one another and also differ from one another in the opposite or reverse planar surface so that the jewelry article can be worn to display the ornamental geometric configurations in either planar surface. A pin or other connecting device passing through each link attaches the links to one another. This secures the links together to allow the jewelry article to be both flexible and reversible.Type: GrantFiled: June 22, 2001Date of Patent: June 3, 2003Inventor: Hasan Akyol
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Publication number: 20020194867Abstract: A reversible ornamental article of jewelry is disclosed having a plurality of ornamental links hinge ably secured to one another to form a flexible strand of jewelry, which can be in the form of a necklace or bracelet. The geometric configurations of the links in one planar surface differ from one another and also differ from one another in the opposite or reverse planar surface so that the jewelry article can be worn to display the ornamental geometric configurations in either planar surface. A pin or other connecting means passing through each link attaches the links to one another. This secures the links together to allow the jewelry article to be both flexible and reversible.Type: ApplicationFiled: June 22, 2001Publication date: December 26, 2002Inventor: Hasan Akyol