Patents by Inventor Arshan Aga
Arshan Aga 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: 11300613Abstract: A method of assessing the ability of one or more multi-die circuit elements to tolerate the presence of jitter in intra-package. The method includes: providing a first die having a set of transmitters for digital communications, the set of transmitters comprising a first transmitter and a second transmitter; providing a second die having a set of receivers for digital communications; providing a performance monitor; coupling, using an intra-package trace, a first transmit signal from the first transmitter to a receiver of the set of receivers; coupling a second transmit signal from the second transmitter to an external pin; supplying an input signal that induces jitter in the first and second transmit signals; measuring jitter in the second transmit signal via the external pin; and determining, using the performance monitor, a performance characteristic of the second die.Type: GrantFiled: September 16, 2020Date of Patent: April 12, 2022Assignee: Credo Technology Group LimitedInventors: Arshan Aga, Haoli Qian, Junqing Sun, James Bartenslager
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Publication number: 20220082618Abstract: A method of assessing the ability of one or more multi-die circuit elements to tolerate the presence of jitter in intra-package. The method includes: providing a first die having a set of transmitters for digital communications, the set of transmitters comprising a first transmitter and a second transmitter; providing a second die having a set of receivers for digital communications; providing a performance monitor; coupling, using an intra-package trace, a first transmit signal from the first transmitter to a receiver of the set of receivers; coupling a second transmit signal from the second transmitter to an external pin; supplying an input signal that induces jitter in the first and second transmit signals; measuring jitter in the second transmit signal via the external pin; and determining, using the performance monitor, a performance characteristic of the second die.Type: ApplicationFiled: September 16, 2020Publication date: March 17, 2022Applicant: Credo Technology Group LimitedInventors: Arshan AGA, Haoli QIAN, Junqing SUN, James BARTENSLAGER
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Patent number: 11035900Abstract: Scan-chain testing of a semiconductor chip may be performed entirely via a deserializer port. In one illustrative device embodiment, a semiconductor chip includes at least one deserializer having: a serial-to-parallel converter coupled to a pair of differential signal input pins; a scan-chain receiver circuit coupled to at least one of the pair of differential signal input pins in parallel with the serial-to-parallel converter to receive a scan-chain test input data stream; a scan-chain test logic circuit that loads the scan-chain test input data stream into a scan chain and extracts a scan-chain test result data stream from the scan chain; and a scan-chain transmit circuit that drives the pair of differential signal input pins with the scan-chain test result data stream. If multiple SerDes blocks exist on the chip, the deserializer ports may be employed in parallel for input and output of test data streams.Type: GrantFiled: January 4, 2019Date of Patent: June 15, 2021Assignee: Credo Technology Group, LtdInventors: Arshan Aga, Nianwei Xing
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Patent number: 10987018Abstract: A method and system for determining a body impedance (Zbody) of a user are disclosed. The method comprises coupling a sensor device to the user, wherein the sensor device includes at least a first and a second electrode. The method includes applying a voltage signal (Vin) through a first impedance (Zin1) to the first electrode and through a second impedance (Zin2) to the second electrode to produce an output signal. The method includes measuring a differential voltage (Vbody) across the first and second electrodes and calculating the body impedance (Zbody) using the measured differential voltage (Vbody), the voltage signal (Vin), the first impedance (Zin1), and the second impedance (Zin2).Type: GrantFiled: August 28, 2017Date of Patent: April 27, 2021Assignee: VITAL CONNECT, INC.Inventors: Arshan Aga, Steve Fang
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Patent number: 10856741Abstract: A system and method for detecting and monitoring core body temperature are disclosed. The system includes a patch device and an electronic module coupled to the patch device. The method includes providing a patch device, coupling an electronic module to the patch device to provide a wearable device, and monitoring core body temperature of a user using the wearable device.Type: GrantFiled: December 14, 2016Date of Patent: December 8, 2020Assignee: Vital Connect, Inc.Inventors: Dhwanil Damania, Olivier Colliou, Arshan Aga
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Patent number: 10778236Abstract: An illustrative PLL circuit and method for generating a clock signal over a wide frequency range without gaps. In one illustrative embodiment, an extended-range PLL includes: a phase comparator that determines a phase error between a reference clock and a feedback clock; a loop filter that converts the phase error into a control signal; a voltage controlled oscillator (VCO) that provides a generated clock signal having a generated clock frequency determined by the control signal; a divide-by-1.5 block that produces a reduced-frequency clock signal in response to the generated clock signal; and a multiplexer that selects one of the generated clock signal and the reduced-frequency clock signal as a selected clock signal.Type: GrantFiled: January 4, 2019Date of Patent: September 15, 2020Assignee: Credo Technology Group LimitedInventors: Arshan Aga, Xiang Gao, Ni Xu
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Publication number: 20200220550Abstract: An illustrative PLL circuit and method for generating a clock signal over a wide frequency range without gaps. In one illustrative embodiment, an extended-range PLL includes: a phase comparator that determines a phase error between a reference clock and a feedback clock; a loop filter that converts the phase error into a control signal; a voltage controlled oscillator (VCO) that provides a generated clock signal having a generated clock frequency determined by the control signal; a divide-by-1.5 block that produces a reduced-frequency clock signal in response to the generated clock signal; and a multiplexer that selects one of the generated clock signal and the reduced-frequency clock signal as a selected clock signal.Type: ApplicationFiled: January 4, 2019Publication date: July 9, 2020Applicant: CREDO TECHNOLOGY GROUP LIMITEDInventors: Arshan Aga, Xiang Gao, Ni Xu
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Patent number: 10582854Abstract: A method and system for determining thermistor resistance have been disclosed. The method comprises providing a temperature sensor network within a wireless sensor device, wherein the temperature sensor network includes a driver device and a receiver device, coupling the driver device to the receiver device using a dual bond wire system, determining at least one output voltage using at least one input current flowing through the dual bond wire system, and determining the thermistor resistance using the at least one output voltage. The system comprises a wireless sensor device including a temperature sensor network that comprises driver and receiver devices, and a dual bond wire system that couples the driver device to the receiver device, wherein at least one output voltage is determined using at least one input current flowing through the dual bond wire system, further wherein the thermistor resistance is determined using the at least one output voltage.Type: GrantFiled: August 5, 2016Date of Patent: March 10, 2020Assignee: Vital Connect, Inc.Inventors: Raymond Liou, Arshan Aga, Steve Fang
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Publication number: 20200041565Abstract: Scan-chain testing of a semiconductor chip may be performed entirely via a deserializer port. In one illustrative device embodiment, a semiconductor chip includes at least one deserializer having: a serial-to-parallel converter coupled to a pair of differential signal input pins; a scan-chain receiver circuit coupled to at least one of the pair of differential signal input pins in parallel with the serial-to-parallel converter to receive a scan-chain test input data stream; a scan-chain test logic circuit that loads the scan-chain test input data stream into a scan chain and extracts a scan-chain test result data stream from the scan chain; and a scan-chain transmit circuit that drives the pair of differential signal input pins with the scan-chain test result data stream. If multiple SerDes blocks exist on the chip, the deserializer ports may be employed in parallel for input and output of test data streams.Type: ApplicationFiled: January 4, 2019Publication date: February 6, 2020Applicant: CREDO TECHNOLOGY GROUP LIMITEDInventors: Arshan Aga, Nianwei Xing
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Patent number: 10262506Abstract: A method, system, and a computer-readable medium for pairing a wireless sensor device which is associated with a user to a wireless relay device are disclosed. The method, system, and computer-readable medium comprise providing an identification code that includes a network address within the wireless sensor device. The method, system, and computer-readable medium include utilizing an application within a wireless relay device. The application selects the wireless sensor device by using the corresponding identification code, scans for network addresses, and compares the network address to the scanned network addresses. When the network address matches one of the scanned network addresses, the wireless sensor device is paired to the wireless relay device by the application.Type: GrantFiled: July 7, 2017Date of Patent: April 16, 2019Assignee: VITAL CONNECT, INC.Inventors: Arshan Aga, Yun Yang, Saeed Azimi
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Publication number: 20190090781Abstract: A system, device and method of calibrating a sensor determine a sensor vector associated with a subject; process the sensor vector; determine a sensor elevation angle as a prediction of the subject's body elevation from a result of processing the sensor vector; and perform calibration using the sensor vector, sensor elevation angle, and a gravity vector.Type: ApplicationFiled: September 28, 2017Publication date: March 28, 2019Inventors: Nandakumar SELVARAJ, Thang TRAN, Arshan AGA
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Publication number: 20190059777Abstract: A method and system for determining a body impedance (Zbody) of a user are disclosed. The method comprises coupling a sensor device to the user, wherein the sensor device includes at least a first and a second electrode. The method includes applying a voltage signal (Vin) through a first impedance (Zin1) to the first electrode and through a second impedance (Zin2) to the second electrode to produce an output signal. The method includes measuring a differential voltage (Vbody) across the first and second electrodes and calculating the body impedance (Zbody) using the measured differential voltage (Vbody), the voltage signal (Vin), the first impedance (Zin1), and the second impedance (Zin2).Type: ApplicationFiled: August 28, 2017Publication date: February 28, 2019Inventors: Arshan Aga, Steve Fang
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Patent number: 10213146Abstract: A method and system for measuring psychological stress disclosed. In a first aspect, the method comprises determining R-R intervals from an electrocardiogram (ECG) to calculate a standard deviation of the R-R intervals (SDNN) and determining a stress feature (SF) using the SDNN. In response to reaching a threshold, the method includes performing adaptation to update a probability mass function (PMF). The method includes determining a stress level (SL) using the SF and the updated PMF to continuously measure the psychological stress. In a second aspect, the system comprises a wireless sensor device coupled to a user via at least one electrode, wherein the wireless sensor device includes a processor and a memory device coupled to the processor, wherein the memory device stores an application which, when executed by the processor, causes the processor to carry out the steps of the method.Type: GrantFiled: July 12, 2017Date of Patent: February 26, 2019Assignee: VITAL CONNECT, INC.Inventors: Arshan Aga, Alexander Chan, Ravi Narasimhan
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Publication number: 20180160909Abstract: A system and method for detecting and monitoring core body temperature are disclosed. The system includes a patch device and an electronic module coupled to the patch device. The method includes providing a patch device, coupling an electronic module to the patch device to provide a wearable device, and monitoring core body temperature of a user using the wearable device.Type: ApplicationFiled: December 14, 2016Publication date: June 14, 2018Inventors: Dhwanil Damania, Olivier Colliou, Arshan Aga
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Publication number: 20180035889Abstract: A method and system for determining thermistor resistance have been disclosed. The method comprises providing a temperature sensor network within a wireless sensor device, wherein the temperature sensor network includes a driver device and a receiver device, coupling the driver device to the receiver device using a dual bond wire system, determining at least one output voltage using at least one input current flowing through the dual bond wire system, and determining the thermistor resistance using the at least one output voltage. The system comprises a wireless sensor device including a temperature sensor network that comprises driver and receiver devices, and a dual bond wire system that couples the driver device to the receiver device, wherein at least one output voltage is determined using at least one input current flowing through the dual bond wire system, further wherein the thermistor resistance is determined using the at least one output voltage.Type: ApplicationFiled: August 5, 2016Publication date: February 8, 2018Inventors: Raymond LIOU, Arshan AGA, Steve FANG
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Publication number: 20170311862Abstract: A method and system for measuring psychological stress disclosed. In a first aspect, the method comprises determining R-R intervals from an electrocardiogram (ECG) to calculate a standard deviation of the R-R intervals (SDNN) and determining a stress feature (SF) using the SDNN. In response to reaching a threshold, the method includes performing adaptation to update a probability mass function (PMF). The method includes determining a stress level (SL) using the SF and the updated PMF to continuously measure the psychological stress. In a second aspect, the system comprises a wireless sensor device coupled to a user via at least one electrode, wherein the wireless sensor device includes a processor and a memory device coupled to the processor, wherein the memory device stores an application which, when executed by the processor, causes the processor to carry out the steps of the method.Type: ApplicationFiled: July 12, 2017Publication date: November 2, 2017Inventors: Arshan Aga, Alexander CHAN, Ravi NARASIMHAN
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Publication number: 20170311116Abstract: A method, system, and a computer-readable medium for pairing a wireless sensor device which is associated with a user to a wireless relay device are disclosed. The method, system, and computer-readable medium comprise providing an identification code that includes a network address within the wireless sensor device. The method, system, and computer-readable medium include utilizing an application within a wireless relay device. The application selects the wireless sensor device by using the corresponding identification code, scans for network addresses, and compares the network address to the scanned network addresses. When the network address matches one of the scanned network addresses, the wireless sensor device is paired to the wireless relay device by the application.Type: ApplicationFiled: July 7, 2017Publication date: October 26, 2017Inventors: Arshan Aga, Yun Yang, Saeed Azimi
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Patent number: 9214196Abstract: A system and method for powering a wireless sensor device are disclosed. In a first aspect, the wireless sensor device comprises at least two electrodes configured to be attached to a body and at least two leads coupled to the at least two electrodes. The wireless sensor device also includes a system on chip (SoC) coupled to the at least two leads and a portable power source (Vbatt) coupled to the SoC. When the at least two electrodes are attached to the body, a difference in resistance is measured between the at least two leads by the SoC and the difference in resistance is utilized by the SoC to enable the portable power source to activate the wireless sensor device.Type: GrantFiled: February 16, 2012Date of Patent: December 15, 2015Assignee: VITAL CONNECT, INC.Inventors: Arshan Aga, Yun Yang
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Patent number: 9204816Abstract: A method and system for determining a body impedance (Zbody) of a user are disclosed. The method comprises coupling a sensor device to the user, wherein the sensor device includes at least a first and a second electrode. The method includes applying a voltage signal (Vin) through a first impedance (Zin1) to the first electrode and through a second impedance (Zin2) to the second electrode to produce an output signal. The method includes measuring a differential voltage (Vbody) across the first and second electrodes and calculating the body impedance (Zbody) using the measured differential voltage (Vbody), the voltage signal (Vin), the first impedance (Zin1), and the second impedance (Zin2).Type: GrantFiled: March 13, 2012Date of Patent: December 8, 2015Assignee: VITAL CONNECT, INC.Inventor: Arshan Aga
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Patent number: 9167986Abstract: A method and system for determining a body impedance (Zbody) of a user are disclosed. The method comprises coupling a sensor device to the user, wherein the sensor device includes at least a first and a second electrode. The method includes applying a voltage signal (Vin) through a first impedance (Zin1) to the first electrode and through a second impedance (Zin2) to the second electrode to produce an output signal. The method includes measuring a differential voltage (Vbody) across the first and second electrodes and calculating the body impedance (Zbody) using the measured differential voltage (Vbody), the voltage signal (Vin), the first impedance (Zin1), and the second impedance (Zin2).Type: GrantFiled: March 13, 2012Date of Patent: October 27, 2015Assignee: VITAL CONNECT, INC.Inventor: Arshan Aga