Patents by Inventor Ali M. Niknejad
Ali M. Niknejad 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: 10153731Abstract: An apparatus, comprising has an array of power amplifiers. A power detector collects a power signal applied to the array of power amplifiers. Digital logic is connected to the array of power amplifiers and the power detector. The digital logic is configured to evaluate the power signal and select an array pattern from a set of array patterns and generate a control signal to implement the array pattern on the array of power amplifiers. Each array pattern in the set of array patterns includes at least one operative power amplifier.Type: GrantFiled: October 23, 2017Date of Patent: December 11, 2018Assignee: RF Pixels, Inc.Inventors: Siva V. Thyagarajan, Ali M. Niknejad, Sriramkumar Venugopalan
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Publication number: 20180115360Abstract: An apparatus has an array of antennae. Each antenna in the array has a tile circuit including a frequency conversion circuit to generate from an incoming reference signal a local oscillator carrier signal operative as an outgoing reference signal for an adjacent tile circuit. A mixer receives the local oscillator carrier signal and combines it with an antenna signal to produce a frequency converted antenna signal. A matrix of phase shifters and variable gain elements produces a set of frequency converted and phase rotated antenna signals. Analog summers combine the frequency converted and phase rotated antenna signals with user input signals from the adjacent tile circuit for distributed analog beam forming of multiple streams. The user input signals correspond to distinct users tracked by the array of antennae.Type: ApplicationFiled: October 23, 2017Publication date: April 26, 2018Applicant: RF Pixels, Inc.Inventors: Ali M. Niknejad, Siva V. Thyagarajan, Sriramkumar Venugopalan
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Publication number: 20180115282Abstract: An apparatus, comprising has an array of power amplifiers. A power detector collects a power signal applied to the array of power amplifiers. Digital logic is connected to the array of power amplifiers and the power detector. The digital logic is configured to evaluate the power signal and select an array pattern from a set of array patterns and generate a control signal to implement the array pattern on the array of power amplifiers. Each array pattern in the set of array patterns includes at least one operative power amplifier.Type: ApplicationFiled: October 23, 2017Publication date: April 26, 2018Applicant: RF Pixels, Inc.Inventors: Siva V. Thyagarajan, Ali M. Niknejad, Sriramkumar Venugopalan
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Patent number: 8718742Abstract: A sensor system in accordance with the present invention comprises a plane member, a plurality of electrodes within the plane member, adapted to contact a human body to detect and monitor human generated voltages. The sensor can be applied to monitor a variety of applications relating to health, disease progression, fitness and wellness. Some of the specific applications include the monitoring of ECG, EEG, EMG, glucose, electrolytes, body hydration, dehydration, tissue state and wounds. Various aspects of the invention are shown by illustrating certain embodiments. Many other embodiments can be used to implement the invented schemes.Type: GrantFiled: May 23, 2008Date of Patent: May 6, 2014Assignee: HMicro, Inc.Inventors: James Beck, Venkateswara R. Sattiraju, Ali M. Niknejad, Louis C. Yun, Randall Lee, Surendar Magar, Lois M. Fisher
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Publication number: 20100317958Abstract: A sensor system in accordance with the present invention comprises a plane member, a plurality of electrodes within the plane member, adapted to contact a human body to detect and monitor human generated voltages. The sensor can be applied to monitor a variety of applications relating to health, disease progression, fitness and wellness. Some of the specific applications include the monitoring of ECG, EEG, EMG, glucose, electrolytes, body hydration, dehydration, tissue state and wounds. Various aspects of the invention are shown by illustrating certain embodiments. Many other embodiments can be used to implement the invented schemes.Type: ApplicationFiled: May 23, 2008Publication date: December 16, 2010Inventors: James Beck, Venkateswara R. Sattiraju, Ali M. Niknejad, Louis C. Yun, Randall Lee, Surendar Magar, Lois M. Fisher
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Patent number: 7804364Abstract: A method and apparatus is provided for detecting the output power of a power amplifier. The output power is detected by detecting the absolute values of the voltage and current at the output of the amplifier and mixing the detected voltage and current to generate a signal related to the output power.Type: GrantFiled: December 22, 2004Date of Patent: September 28, 2010Assignee: Black Sand Technologies, Inc.Inventors: Timothy J. Dupuis, David R. Welland, Susanne A. Paul, Ali M. Niknejad
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Patent number: 7754606Abstract: A method and apparatus if provided for shielding a capacitor structure formed in a semiconductor device. In a capacitor formed in an integrated circuit, one or more shields are disposed around layers of conductive strips to shield the capacitor. The shields confine the electric fields between the limits of the shields.Type: GrantFiled: October 31, 2007Date of Patent: July 13, 2010Assignee: Black Sand Technologies, Inc.Inventors: Susanne A. Paul, Timothy J. Dupuis, Ali M. Niknejad
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Patent number: 7714371Abstract: A method and apparatus if provided for shielding a capacitor structure formed in a semiconductor device. In a capacitor formed in an integrated circuit, one or more shields are disposed around layers of conductive strips to shield the capacitor. The shields confine the electric fields between the limits of the shields.Type: GrantFiled: November 29, 2005Date of Patent: May 11, 2010Assignee: Black Sand Technologies, Inc.Inventors: Susanne A. Paul, Timothy J. Dupuis, Ali M. Niknejad
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Publication number: 20090042527Abstract: The present invention comprises a dynamic front end radio receiver that determines the current operating conditions and adjusts the power consumption of the receiver accordingly. In one embodiment, the receiver can detect the strength of an incoming signal and the presence of any interfering signals. The receiver includes a series of programmable blocks, where the bias of each block is adjustable. The power consumption of the overall receiver can be minimized by controlling each programmable block with a control signal. Thus, the receiver can contend with a dynamic environment, so that the performance is controlled in a manner sufficient to process the incoming signal and minimize the power dissipation necessary to achieve acceptable radio performance. An embodiment of the invention may be used in wireless radio networks for a variety of applications, such as healthcare wireless technology.Type: ApplicationFiled: June 12, 2008Publication date: February 12, 2009Applicant: HMicro Inc.Inventor: Ali M. NIKNEJAD
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Publication number: 20090040107Abstract: The present invention provides several smart antenna devices and methods. The devices and methods incorporate a programmable delay element into each RF pathway, which enables smart antennas to receive not only narrow band signals but also ultra-wide band signals at low cost and low power consumption, while in a highly reliable fashion. The devices and methods therefore enable a low complexity smart antenna receiver as part of a highly reliable, low cost and low power sensor network.Type: ApplicationFiled: June 12, 2008Publication date: February 12, 2009Applicant: HMicro, Inc.Inventors: Louis Yun, Ali M. Niknejad
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Publication number: 20080274612Abstract: A method and apparatus if provided for shielding a capacitor structure formed in a semiconductor device. In a capacitor formed in an integrated circuit, one or more shields are disposed around layers of conductive strips to shield the capacitor. The shields confine the electric fields between the limits of the shields.Type: ApplicationFiled: October 31, 2007Publication date: November 6, 2008Inventors: Susanne A. Paul, Timothy J. Dupuis, Ali M. Niknejad
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Patent number: 6969680Abstract: A method and apparatus if provided for shielding a capacitor structure formed in a semiconductor device. In a capacitor formed in an integrated circuit, one or more shields are disposed around layers of conductive strips to shield the capacitor. The shields confine the electric fields between the limits of the shields.Type: GrantFiled: March 31, 2004Date of Patent: November 29, 2005Assignee: Silicon Laboratories Inc.Inventors: Susanne A. Paul, Timothy J. Dupuis, Ali M. Niknejad
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Patent number: 6927630Abstract: A method and apparatus is provided for detecting the output power of an RF power amplifier for purposes of controlling the output power. A circuit for generating an output power control signal includes a power detector to detect the output power of an RF power amplifier. A variable gain amplifier is coupled to the power detector for amplifying the output of the power detector. The value of the generated control signal is a function of the gain of the variable gain amplifier.Type: GrantFiled: September 29, 2003Date of Patent: August 9, 2005Assignee: Silicon Laboratories Inc.Inventors: Timothy J. Dupuis, David R. Welland, Ali M. Niknejad, Susanne A. Paul
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Patent number: 6917245Abstract: A method and apparatus is provided for detecting the output power of a power amplifier. The output power is detected by detecting the absolute values of the voltage and current at the output of the amplifier and mixing the detected voltage and current to generate a signal related to the output power.Type: GrantFiled: March 13, 2002Date of Patent: July 12, 2005Assignee: Silicon Laboratories, Inc.Inventors: Timothy J. Dupuis, David R. Welland, Susanne A. Paul, Ali M. Niknejad
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Patent number: 6756849Abstract: A method and apparatus is provided for detecting the output power of a power amplifier. The output power is detected by detecting the absolute values of the voltage and current at the output of the amplifier and mixing the detected voltage and current to generate a signal related to the output power.Type: GrantFiled: September 29, 2003Date of Patent: June 29, 2004Inventors: Timothy J. Dupuis, David R. Welland, Susanne A. Paul, Ali M. Niknejad
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Publication number: 20040113686Abstract: A method and apparatus is provided for detecting the output power of a power amplifier. The output power is detected by detecting the absolute values of the voltage and current at the output of the amplifier and mixing the detected voltage and current to generate a signal related to the output power.Type: ApplicationFiled: March 13, 2002Publication date: June 17, 2004Inventors: Timothy J. Dupuis, David R. Welland, Susanne A. Paul, Ali M. Niknejad
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Patent number: 6737698Abstract: A method and apparatus if provided for shielding a capacitor structure formed in a semiconductor device. In a capacitor formed in an integrated circuit, one or more shields are disposed around layers of conductive strips to shield the capacitor. The shields confine the electric fields between the limits of the shields.Type: GrantFiled: March 11, 2002Date of Patent: May 18, 2004Assignee: Silicon Laboratories, Inc.Inventors: Susanne A. Paul, Timothy J. Dupuis, Ali M. Niknejad
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Patent number: 6727754Abstract: A method and apparatus is provided for detecting the output power of an RF power amplifier for purposes of controlling the output power. A circuit for generating an output power control signal includes a power detector to detect the output power of an RF power amplifier. A variable gain amplifier is coupled to the power detector for amplifying the output of the power detector. The value of the generated control signal is a function of the gain of the variable gain amplifier.Type: GrantFiled: April 26, 2001Date of Patent: April 27, 2004Assignee: Silicon Laboratories, Inc.Inventors: Timothy J. Dupuis, David R. Welland, Ali M. Niknejad, Susanne A. Paul
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Publication number: 20040075499Abstract: A method and apparatus is provided for detecting the output power of an RF power amplifier for purposes of controlling the output power. A circuit for generating an output power control signal includes a power detector to detect the output power of an RF power amplifier. A variable gain amplifier is coupled to the power detector for amplifying the output of the power detector. The value of the generated control signal is a function of the gain of the variable gain amplifier.Type: ApplicationFiled: September 29, 2003Publication date: April 22, 2004Inventors: Timothy J. Dupuis, David R. Welland, Ali M. Niknejad, Susanne A. Paul
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Publication number: 20040070453Abstract: A method and apparatus is provided for detecting the output power of a power amplifier. The output power is detected by detecting the absolute values of the voltage and current at the output of the amplifier and mixing the detected voltage and current to generate a signal related to the output power.Type: ApplicationFiled: September 29, 2003Publication date: April 15, 2004Inventors: Timothy J. Dupuis, David R. Welland, Susanne A. Paul, Ali M. Niknejad