Patents by Inventor Vikas Vinayak
Vikas Vinayak 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: 20230309557Abstract: The present disclosure relates to a stable solid agrochemical composition includes: a chloroacetanilide herbicide; a second herbicide; and a suspensibility promoting agent. In said composition, the second herbicide is one or more of a sulfonylurea herbicide, an anilide herbicide, a triazinone herbicide, a salt or derivative thereof. A process of preparing the stable solid agrochemical composition, and a method of controlling weeds using said composition as herbicide are also disclosed.Type: ApplicationFiled: July 10, 2021Publication date: October 5, 2023Inventors: Vikas Vinayak Oltikar, Pradeep Shamrao Sapkale, Anil Saini, Rajan Ramakant Shirsat
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Publication number: 20220315506Abstract: A system for coating fertilizer substrates is provided. The system comprises a mixing unit wherein the mixing unit comprises a container bowl having an inlet portion and an outlet portion wherein the inlet portion is operatively fastened to a hot air conduit having a blowing unit connected at one end. The invention also relates to a process for coating fertilizer substrates and the coated substrates thereof.Type: ApplicationFiled: September 2, 2019Publication date: October 6, 2022Inventors: Vikas Vinayak Oltikar, Rajan Ramakant Shirsat, Jaidev Rajnikant Shroff, Vikram Rajnikant Shroff
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Patent number: 11171613Abstract: Controllable radio frequency power amplifiers (RFPAs), e.g., in a Hybrid-MIMO array, which are being driven at lower power levels, are operated at conditions such that their inherent EVM and ACLR are intentionally further increased. This increase of inherent EVM and ACLR is done in a precise manner, and the increased inherent EVM and ACLR are cancelled or reduced by the EVM and ACLR of the input Array DPD signal. The net result is improved EVM and ACLR performance over a broader range of angles. Exemplary methods and apparatus for increasing distortion include individual or combinations of: i) changing the DC bias a RFPA based on average operating power level; ii) changing supply voltage, e.g. Vcc, of a RFPA based on average operating power level, iii) adding a controllable non-linear element, such as a diode or varactor, at the input of the RFPA, based on the average operating power.Type: GrantFiled: June 30, 2020Date of Patent: November 9, 2021Assignee: Mixcomm, Inc.Inventors: Harish Krishnaswamy, Frank Lane, Arun Natarajan, Aristotele Hadjichristos, Vikas Vinayak
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Patent number: 11012055Abstract: A comparator system and a method for comparing an input signal and a reference signal are presented. The system has a controller to adjust a rising output delay and/or a falling output delay of a system output signal. The system output signal is dependent on the comparison between the input signal and the reference signal. This system provides a more efficient comparator with reduced power consumption whilst still providing the required rising output delay and falling output delay for a given application. Techniques used in prior art will always resort to running the comparators at a speed that supports the speed requirements in the worst case conditions and does not exploit any asymmetries in the required rising output delay and falling output delay for a given application. When these asymmetries are exploited, further increases in power efficiency can be achieved.Type: GrantFiled: May 17, 2019Date of Patent: May 18, 2021Assignee: Silego Technology Inc.Inventors: Vikas Vinayak, David Kuneth Chow, Nathan Willis John, Sidney Chan
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Publication number: 20200366277Abstract: A comparator system and a method for comparing an input signal and a reference signal are presented. The system has a controller to adjust a rising output delay and/or a falling output delay of a system output signal. The system output signal is dependent on the comparison between the input signal and the reference signal. This system provides a more efficient comparator with reduced power consumption whilst still providing the required rising output delay and falling output delay for a given application. Techniques used in prior art will always resort to running the comparators at a speed that supports the speed requirements in the worst case conditions and does not exploit any asymmetries in the required rising output delay and falling output delay for a given application. When these asymmetries are exploited, further increases in power efficiency can be achieved.Type: ApplicationFiled: May 17, 2019Publication date: November 19, 2020Inventors: Vikas Vinayak, David Kuneth Chow, Nathan Willis John, Sidney Chan
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Patent number: 10466730Abstract: A power supply efficiently suppresses transient voltages by storing the maximum charge expected in the transient and releasing it during the transient event at a rate in an equal but opposite amount to the transient, preventing the battery voltage from collapsing. The described power supply provides improved efficiency compared to conventional architectures for transient suppression, thus increasing the length of time between battery charges and creating a better user experience.Type: GrantFiled: November 29, 2016Date of Patent: November 5, 2019Assignee: QUANTANCE, INC.Inventors: Vikas Vinayak, Serge Francois Drogi
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Patent number: 10129642Abstract: An audio system comprises an audio driver configured to receive a target audio signal and a feedback signal and to generate an adjusted audio signal responsive to the target audio signal and the feedback signal. A loudspeaker is configured to convert the adjusted audio signal into acoustical sound. A test signal generator is configured to generate a test signal having a higher frequency than the target audio signal. The test signal causes a test current to flow through the loudspeaker. A current sensing circuit is configured to measure the test current flowing through the loudspeaker and to generate a current sense signal indicative of the test current. A feedback circuit is configured generates the feedback signal responsive to the current sense signal.Type: GrantFiled: February 29, 2016Date of Patent: November 13, 2018Assignee: QUANTANCE, INC.Inventor: Vikas Vinayak
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Patent number: 9825592Abstract: A self-setting power supply monitors a supply current drawn by a power amplifier and sets a supply voltage based on the supply current to achieve efficient power operation. In order to maintain operation of the power amplifier above minimum operating conditions, the self-setting power supply sets the supply voltage to the minimum operating voltage when the supply current drops below a threshold bias current. When the supply current is above the threshold bias current, the self-setting power supply adjusts the supply voltage approximately proportionally to the supply current to maintain approximately constant gain of the power amplifier.Type: GrantFiled: February 4, 2016Date of Patent: November 21, 2017Assignee: QUANTANCE, INC.Inventor: Vikas Vinayak
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Patent number: 9762184Abstract: An RF PA system that generates its own local characterization information. The RF PA system includes a PA to generate a RF output signal from a RF input signal, the PA powered by a supply voltage. A characterization block generates characterization information corresponding to a relationship between the supply voltage and performance (e.g., gain, power efficiency, distortion, receive band noise) of the RF PA system for a plurality of levels of one or more operating conditions (e.g., temperature, operating frequency, modulation format, antennae mismatch, etc.) of the RF PA system. An amplitude estimator block estimates an amplitude of the RF input signal. A supply control block generates a supply voltage control signal for controlling the supply voltage based on the characterization information and the amplitude of the RF input signal.Type: GrantFiled: February 4, 2016Date of Patent: September 12, 2017Assignee: QUANTANCE, INC.Inventors: Serge Francois Drogi, Vikas Vinayak
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Patent number: 9748836Abstract: A power stabilization circuit including a first reference power supply, a second reference power supply, and a combiner circuit coupled to the first reference power supply and the second reference power supply. The first reference power supply is configured to receive a first control signal, generate a first reference signal based on the first control signal, and provide the first reference signal to a first output power supply. The second reference power supply is configured to receive a second control signal, generate a second reference signal based on the second control signal, and provide the second reference signal to a second output power supply. The combiner circuit is configured to generate a combined reference signal based on the first reference signal and the second reference signal and drive a reference load based on the combined reference signal.Type: GrantFiled: July 20, 2015Date of Patent: August 29, 2017Assignee: QUANTANCE, INC.Inventor: Vikas Vinayak
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Publication number: 20170075376Abstract: A power supply efficiently suppresses transient voltages by storing the maximum charge expected in the transient and releasing it during the transient event at a rate in an equal but opposite amount to the transient, preventing the battery voltage from collapsing. The described power supply provides improved efficiency compared to conventional architectures for transient suppression, thus increasing the length of time between battery charges and creating a better user experience.Type: ApplicationFiled: November 29, 2016Publication date: March 16, 2017Inventors: Vikas Vinayak, Serge Francois Drogi
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Patent number: 9535441Abstract: A power supply efficiently suppresses transient voltages by storing the maximum charge expected in the transient and releasing it during the transient event at a rate in an equal but opposite amount to the transient, preventing the battery voltage from collapsing. The described power supply provides improved efficiency compared to conventional architectures for transient suppression, thus increasing the length of time between battery charges and creating a better user experience.Type: GrantFiled: March 12, 2014Date of Patent: January 3, 2017Assignee: QUANTANCE, INC.Inventors: Vikas Vinayak, Serge Francois Drogi
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Publication number: 20160183002Abstract: An audio system comprises an audio driver configured to receive a target audio signal and a feedback signal and to generate an adjusted audio signal responsive to the target audio signal and the feedback signal. A loudspeaker is configured to convert the adjusted audio signal into acoustical sound. A test signal generator is configured to generate a test signal having a higher frequency than the target audio signal. The test signal causes a test current to flow through the loudspeaker. A current sensing circuit is configured to measure the test current flowing through the loudspeaker and to generate a current sense signal indicative of the test current. A feedback circuit is configured generates the feedback signal responsive to the current sense signal.Type: ApplicationFiled: February 29, 2016Publication date: June 23, 2016Inventor: Vikas Vinayak
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Publication number: 20160156316Abstract: An RF PA system that generates its own local characterization information. The RF PA system includes a PA to generate a RF output signal from a RF input signal, the PA powered by a supply voltage. A characterization block generates characterization information corresponding to a relationship between the supply voltage and performance (e.g., gain, power efficiency, distortion, receive band noise) of the RF PA system for a plurality of levels of one or more operating conditions (e.g., temperature, operating frequency, modulation format, antennae mismatch, etc.) of the RF PA system. An amplitude estimator block estimates an amplitude of the RF input signal. A supply control block generates a supply voltage control signal for controlling the supply voltage based on the characterization information and the amplitude of the RF input signal.Type: ApplicationFiled: February 4, 2016Publication date: June 2, 2016Inventors: Serge Francois Drogi, Vikas Vinayak
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Publication number: 20160156318Abstract: A self-setting power supply monitors a supply current drawn by a power amplifier and sets a supply voltage based on the supply current to achieve efficient power operation. In order to maintain operation of the power amplifier above minimum operating conditions, the self-setting power supply sets the supply voltage to the minimum operating voltage when the supply current drops below a threshold bias current. When the supply current is above the threshold bias current, the self-setting power supply adjusts the supply voltage approximately proportionally to the supply current to maintain approximately constant gain of the power amplifier.Type: ApplicationFiled: February 4, 2016Publication date: June 2, 2016Inventor: Vikas Vinayak
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Patent number: 9301071Abstract: An audio system comprises an audio driver configured to receive a target audio signal and a feedback signal and to generate an adjusted audio signal responsive to the target audio signal and the feedback signal. A loudspeaker is configured to convert the adjusted audio signal into acoustical sound. A test signal generator is configured to generate a test signal having a higher frequency than the target audio signal. The test signal causes a test current to flow through the loudspeaker. A current sensing circuit is configured to measure the test current flowing through the loudspeaker and to generate a current sense signal indicative of the test current. A feedback circuit is configured generates the feedback signal responsive to the current sense signal.Type: GrantFiled: March 12, 2013Date of Patent: March 29, 2016Assignee: QUANTANCE, INC.Inventor: Vikas Vinayak
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Patent number: 9270239Abstract: An RF PA system that generates its own local characterization information. The RF PA system includes a PA to generate a RF output signal from a RF input signal, the PA powered by a supply voltage. A characterization block generates characterization information corresponding to a relationship between the supply voltage and performance (e.g., gain, power efficiency, distortion, receive band noise) of the RF PA system for a plurality of levels of one or more operating conditions (e.g., temperature, operating frequency, modulation format, antennae mismatch, etc.) of the RF PA system. An amplitude estimator block estimates an amplitude of the RF input signal. A supply control block generates a supply voltage control signal for controlling the supply voltage based on the characterization information and the amplitude of the RF input signal.Type: GrantFiled: March 13, 2014Date of Patent: February 23, 2016Assignee: QUANTANCE, INC.Inventors: Serge Francois Drogi, Vikas Vinayak
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Patent number: 9263997Abstract: A self-setting power supply monitors a supply current drawn by a power amplifier and sets a supply voltage based on the supply current to achieve efficient power operation. In order to maintain operation of the power amplifier above minimum operating conditions, the self-setting power supply sets the supply voltage to the minimum operating voltage when the supply current drops below a threshold bias current. When the supply current is above the threshold bias current, the self-setting power supply adjusts the supply voltage approximately proportionally to the supply current to maintain approximately constant gain of the power amplifier.Type: GrantFiled: March 12, 2014Date of Patent: February 16, 2016Assignee: QUANTANCE, INC.Inventor: Vikas Vinayak
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Publication number: 20150326112Abstract: A power stabilization circuit including a first reference power supply, a second reference power supply, and a combiner circuit coupled to the first reference power supply and the second reference power supply. The first reference power supply is configured to receive a first control signal, generate a first reference signal based on the first control signal, and provide the first reference signal to a first output power supply. The second reference power supply is configured to receive a second control signal, generate a second reference signal based on the second control signal, and provide the second reference signal to a second output power supply. The combiner circuit is configured to generate a combined reference signal based on the first reference signal and the second reference signal and drive a reference load based on the combined reference signal.Type: ApplicationFiled: July 20, 2015Publication date: November 12, 2015Inventor: Vikas Vinayak
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Patent number: 9088205Abstract: A power supply system comprising a power stabilization stage configured to combine a first reference signal having a first frequency range with a second reference signal having a second frequency range that is different than the first frequency range to generate a combined reference for driving a reference load. A first power supply (e.g. SMPS) is configured to generate a first output based on the first reference signal. A second power supply (e.g. linear regulator) is configured to generate a second output based on the second reference signal. A power combiner circuit is configured to combine the first output with the second output to generate a combined output for driving an output load.Type: GrantFiled: August 14, 2013Date of Patent: July 21, 2015Assignee: QUANTANCE, INC.Inventor: Vikas Vinayak