Patents by Inventor Bhusan Gupta
Bhusan Gupta 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: 11346089Abstract: A fluid dispensing system comprises a first pipe, a second pipe and a thermoelectric generator. The first pipe is configured to carry fluid to the fluid dispensing system. The second pipe is configured to carry fluid to the fluid dispensing system. Temperature of the fluid carried by the first pipe is higher than temperature of the fluid carried by the second pipe. The thermoelectric generator comprises a first side and a second side. The first side of the thermoelectric generator is in thermal contact with the first pipe. The second side of the thermoelectric generator is in thermal contact with the second pipe. Temperature gradient is established between the first side and the second side due to difference in temperature in the first pipe and the second pipe. Electric current is generated by the thermoelectric generator as a result of the temperature gradient.Type: GrantFiled: June 1, 2018Date of Patent: May 31, 2022Assignee: M.I.S. Electronics Inc.Inventors: Bhusan Gupta, Hamid Farzaneh, Farhad Pezeshki, Saeid Mohmedi
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Patent number: 11300310Abstract: A method for conditioning at least one room comprises receiving a first temperature target for a first room; determining a current temperature of the room; determining a first amount of forced air required to reach the temperature target based on a thermal inertia of the first room and the current temperature; powering on an HVAC blower; and powering off the blower once the determined first amount of forced air is blown.Type: GrantFiled: March 4, 2019Date of Patent: April 12, 2022Assignee: Alea Labs, Inc.Inventors: Bhusan Gupta, Hamid Najafi, Hamid Farzaneh
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Publication number: 20210156126Abstract: A fluid dispensing system comprises a first pipe, a second pipe and a thermoelectric generator. The first pipe is configured to carry fluid to the fluid dispensing system. The second pipe is configured to carry fluid to the fluid dispensing system. Temperature of the fluid carried by the first pipe is higher than temperature of the fluid carried by the second pipe. The thermoelectric generator comprises a first side and a second side. The first side of the thermoelectric generator is in thermal contact with the first pipe. The second side of the thermoelectric generator is in thermal contact with the second pipe. Temperature gradient is established between the first side and the second side due to difference in temperature in the first pipe and the second pipe. Electric current is generated by the thermoelectric generator as a result of the temperature gradient.Type: ApplicationFiled: June 1, 2018Publication date: May 27, 2021Inventors: BHUSAN GUPTA, HAMID FARZANEH, FARHAD PEZESHKI, SAEID MOHMEDI
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Publication number: 20200284459Abstract: A method for conditioning at least one room comprises receiving a first temperature target for a first room; determining a current temperature of the room; determining a first amount of forced air required to reach the temperature target based on a thermal inertia of the first room and the current temperature; powering on an HVAC blower; and powering off the blower once the determined first amount of forced air is blown.Type: ApplicationFiled: March 4, 2019Publication date: September 10, 2020Inventors: Bhusan Gupta, Hamid Najafi, Hamid Farzaneh
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Publication number: 20190083917Abstract: A smart air filter housing is provided comprising at least one air filter frame connected to a data measurer and having a wireless communicator. The wireless communicator may interface directly with an HVAC system controller. The data measurer may be a humidity sensor, a temperature, air quality sensor, a microphone, or any other sensor capable of detecting qualities of the air flowing through the HVAC return chamber. The smart air filter housing may be embodied by having a compliance determiner to determine whether an inserted air filter is suitable to the smart air filter housing. The smart air filter housing may also be embodied by having an energy harvester.Type: ApplicationFiled: September 17, 2018Publication date: March 21, 2019Inventors: Hamid NAJAFI, Hamid FARZANEH, Bhusan GUPTA
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Publication number: 20180231271Abstract: A smart vent system is provided comprising at least one smart vent having a wireless connection to a gateway which interfaces directly with the HVAC system to control the HVAC system's operation, thereby bypassing or rendering unnecessary any thermostats that would normally control the HVAC system. The smart vent has a user device link for communicating directly with a user device. The gateway may be configured to either communicate with a smart thermostat or control the HVAC system directly. The smart vent may be embodied in either one device or two intercommunicating devices.Type: ApplicationFiled: February 14, 2018Publication date: August 16, 2018Inventors: Hamid NAJAFI, Bhusan Gupta, Hamid Farzaneh
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Patent number: 7239227Abstract: A substrate having a fingerprint sensing system usable as a command interface using finger movements. A user's fingerprint pattern is recognized and compared to previously stored reference patterns. If the fingerprint pattern matches a previously stored pattern, the user is then permitted to enter certain commands via the same interface system. For example, in the case of an automobile, a user may identify themselves with their fingerprint, and then perform such functions as unlocking the doors, setting the seat to a selected location, or even pre-starting the car prior to their entering the automobile. The very same devices which perform the fingerprint identification and sensing are also used for the input sensing and command recognition to perform the various commands. A user is thus able to securely control desired functions in an automobile, while being assured that an unauthorized user will not have access to the automobile, even as they were able to obtain the command interface device.Type: GrantFiled: December 30, 1999Date of Patent: July 3, 2007Assignee: UPEK, Inc.Inventors: Bhusan Gupta, Alan Kramer
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Patent number: 6628377Abstract: A narrow array optical fingerprint detector that substantially eliminates over-sampling of the array measures the speed of a finger moving over the array and scans the array at a rate determined by the speed of movement of the finger. The fingerprint detector measures the speed of finger movement with a transparent cylinder rotatably mounted adjacent the array. The transparent cylinder is mounted to engage the finger and rotate as the finger is swept past the array. A light chopper is mounted for rotation with the cylinder. A photo-sensor is mounted adjacent the light chopper. The photo-sensor produces a signal in response to light being chopped by the light chopper. The photo-sensor is operably connected to scanning circuitry. Each time the scanning circuitry receives a signal from the photo-sensor, the scanning circuitry scans the array.Type: GrantFiled: April 4, 2000Date of Patent: September 30, 2003Assignee: STMicroelectronics, Inc.Inventors: Marco Sabatini, Frederic Raynal, Bhusan Gupta
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Patent number: 6496021Abstract: This invention is directed to a method of making a capacitive distance sensor that includes one or more sensor cells each with first and second capacitor plates. The method includes determining an expected range of sizes of objects the sensor will be used to detect and determining a total perimeter value for each of a plurality of capacitor patterns. Each capacitor pattern includes a different arrangement of the first and second capacitor plates and the total perimeter value is the sum of the perimeter values for the first and second capacitor plates. The method selects one of the capacitor patterns based on the expected size of the object and on the total perimeter values determined for the capacitor patterns. The selecting step includes selecting whichever one of the capacitor patterns has the largest total perimeter value if the object is smaller than each of the one or more sensor cells.Type: GrantFiled: January 18, 2002Date of Patent: December 17, 2002Assignee: STMicroelectronics, Inc.Inventors: Marco Tartagni, Bhusan Gupta, Alan Kramer
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Patent number: 6437583Abstract: A distance sensor has a capacitive element in turn having a first capacitor plate which is positioned facing a second capacitor plate whose distance is to be measured. In the case of fingerprinting, the second capacitor plate is defined directly by the skin surface of the finger being printed. The sensor comprises an inverting amplifier, between the input and output of which the capacitive element is connected to form a negative feedback branch. By supplying an electric charge step to the input of the inverting amplifier, a voltage step directly proportional to the distance being measured is obtained at the output.Type: GrantFiled: July 11, 2000Date of Patent: August 20, 2002Assignee: STMicroelectronics, Inc..Inventors: Marco Tartagni, Bhusan Gupta, Alan Kramer
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Publication number: 20020097059Abstract: A distance sensor has a capacitive element in turn having a first capacitor plate which is positioned facing a second capacitor plate whose distance is to be measured. In the case of fingerprinting, the second capacitor plate is defined directly by the skin surface of the finger being printed. The sensor comprises an inverting amplifier, between the input and output of which the capacitive element is connected to form a negative feedback branch. By supplying an electric charge step to the input of the inverting amplifier, a voltage step directly proportional to the distance being measured is obtained at the output.Type: ApplicationFiled: January 18, 2002Publication date: July 25, 2002Applicant: STMicroelectronics, Inc.Inventors: Marco Tartagni, Bhusan Gupta, Alan Kramer
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Patent number: 6225711Abstract: A fingertip-operated solid state capacitance switch detects a capacity change that is induced by the physical contact of an ungrounded fingertip to an external dielectric surface of the solid state switch. The input and output of a solid state signal-inverting amplifier are respectively connected to two relatively large and ungrounded capacitor plates that are associated with, but electrically isolated from, the switch's external dielectric surface. An ungrounded fingertip forms a third capacitor plate on the switch's external surface. The solid state amplifier detects the presence of a fingertip on the switch's external surface by way of a change in capacitance within a compound, three plate, capacitor that includes the two ungrounded capacitor plates and the ungrounded fingertip that is resident on the switch's external surface.Type: GrantFiled: August 13, 1999Date of Patent: May 1, 2001Assignee: STMicroelectronics, Inc.Inventors: Bhusan Gupta, Alan Henry Kramer
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Patent number: 6191593Abstract: A capacitance sensor detects the absence/presence of physical matter on a sensing surface of the sensor. The capacitive sensor is a multi-cell sensor wherein each cell has one or more buried, protected, and physically inaccessible capacitor plates. The sensor is physically placed in an environment that is to be monitored for deposition of a particle, vapor, and/or drop of a foreign material on the sensing surface. All cells are initially placed in a startup condition or state. Thereafter, the cells are interrogated or readout, looking for a change in the equivalent feedback capacitance that results from an electrical field shape modification that is caused by the presence of physical matter on the sensing surface. When no such change is detected, the method is repeated for another cell. When a change is detected for a cell, a particle/vapor/drop output is provided.Type: GrantFiled: December 17, 1997Date of Patent: February 20, 2001Assignee: STMicroelectronics, Inc.Inventors: Marco Tartagni, Bhusan Gupta
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Patent number: 6114862Abstract: A distance sensor has a capacitive element in turn having a first capacitor plate which is positioned facing a second capacitor plate whose distance is to be measured. In the case of fingerprinting, the second capacitor plate is defined directly by the skin surface of the finger being printed. The sensor comprises an inverting amplifier, between the input and output of which the capacitive element is connected to form a negative feedback branch. By supplying an electric charge step to the input of the inverting amplifier, a voltage step directly proportional to the distance being measured is obtained at the output.Type: GrantFiled: March 9, 1998Date of Patent: September 5, 2000Assignee: STMicroelectronics, Inc.Inventors: Marco Tartagni, Bhusan Gupta, Alan Kramer
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Patent number: 6110791Abstract: A variable capacitor in a semiconductor device is described in which the capacitance is varied by the movement of a dielectric material in the space between the plates of the capacitor in response to an external stimulus. A method of making such a variable capacitor is also described in which the capacitor is built in a layered structure with the top layer including a portion of dielectric material extending into the space between the capacitor plates. After formation of the top layer, an intermediate layer is etched away to render the top layer flexible to facilitate movement of the dielectric material in the space between the capacitor plates.Type: GrantFiled: July 26, 1999Date of Patent: August 29, 2000Assignee: STMicroelectronics, Inc.Inventors: Alexander Kalnitsky, Alan Kramer, Vito Fabbrizio, Giovanni Gozzini, Bhusan Gupta, Marco Sabatini
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Patent number: 5973623Abstract: A fingertip-operated solid state capacitance switch detects a capacity change that is induced by the physical contact of an ungrounded fingertip to an external dielectric surface of the solid state switch. The input and output of a solid state signal-inverting amplifier are respectively connected to two relatively large and ungrounded capacitor plates that are associated with, but electrically isolated from, the switch's external dielectric surface. An ungrounded fingertip forms a third capacitor plate on the switch's external surface. The solid state amplifier detects the presence of a fingertip on the switch's external surface by way of a change in capacitance within a compound, three plate, capacitor that includes the two ungrounded capacitor plates and the ungrounded fingertip that is resident on the switch's external surface.Type: GrantFiled: October 21, 1997Date of Patent: October 26, 1999Assignee: STMicroelectronics, Inc.Inventors: Bhusan Gupta, Alan Henry Kramer