Patents by Inventor James Archer
James Archer 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).
-
Publication number: 20240146268Abstract: Examples of circuits and amplifiers include recirculation circuitry to reduce or cancel error currents produced by target bipolar junction transistors (BJTs). In an example, first recirculation circuitry is coupled to the base of a first signal-conveyance BJT and to one of the collector or the emitter of the first signal-conveyance BJT; second recirculation circuitry is coupled to the base of a second signal-conveyance BJT and to one of the collector or the emitter of the second signal-conveyance BJT; and biasing circuitry is coupled to the first and second recirculation circuitry. The recirculation circuitry may be implemented with BJTs or MOSFETs. Configurations are provided in which error current(s) are recirculated between the base and collector/emitter node of each target BJT.Type: ApplicationFiled: October 31, 2022Publication date: May 2, 2024Inventors: Tyler James Archer, Bharath Karthik Vasan, Jerry L. Doorenbos
-
Publication number: 20240105169Abstract: Some embodiments are directed to a biometric authentication system including headwear having a plurality of biosensors each configured to sample muscle activity so as to obtain a respective time-varying signal, a data store for storing a data set representing characteristic muscle activity for one or more users, and a processor configured to process the time-varying signals from the biosensors in dependence on the stored data set so as to determine a correspondence between a time-varying signal and characteristic muscle activity of one of the one or more users, and in dependence on the determined correspondence, authenticate the time-varying signals as being associated with that user.Type: ApplicationFiled: December 4, 2023Publication date: March 28, 2024Inventors: Charles NDUKA, Andrew CLEAL, James ARCHER, Mohsen FATOORECHI
-
Publication number: 20240090095Abstract: An integrated multi-layered lighting system includes a first board having a first component area and a first light area, a second board coupled to and offset from the first board, the second board having a first opening overlapping the first light area of the first board in a plan view, and a second component area overlapping the first component area of the first board in a plan view, a plurality of light emitting diodes (LEDs) coupled to the first board and positioned in the first light area corresponding to the first opening of the second board, and a light driver configured to drive the plurality of LEDs and including a plurality of first components coupled to the first board and positioned in the first component area and a plurality of second components coupled to the second board and positioned in the second component area.Type: ApplicationFiled: November 15, 2023Publication date: March 14, 2024Inventors: Michael Archer, Louis Chen, James H. Mohan
-
Patent number: 11924933Abstract: A light driver includes a pulse generator circuit configured to generate a pulsed signal based on a rectified input line voltage, a dimming detection circuit configured to determine whether phase-cut dimming is present at an input of the light driver based on the pulsed signal and to generate a phase-cut detection signal, and an input selection circuit configured to apply a first voltage or a second voltage to a reference input of a power factor correction (PFC) circuit of the light driver based on the phase-cut detection signal.Type: GrantFiled: November 2, 2022Date of Patent: March 5, 2024Assignee: ERP POWER, LLCInventors: Michael Archer, Louis Chen, James H. Mohan
-
Patent number: 11836236Abstract: Some embodiments are directed to a biometric authentication system including headwear having a plurality of biosensors each configured to sample muscle activity so as to obtain a respective time-varying signal, a data store for storing a data set representing characteristic muscle activity for one or more users, and a processor configured to process the time-varying signals from the biosensors in dependence on the stored data set so as to determine a correspondence between a time-varying signal and characteristic muscle activity of one of the one or more users, and in dependence on the determined correspondence, authenticate the time-varying signals as being associated with that user.Type: GrantFiled: December 16, 2022Date of Patent: December 5, 2023Assignee: EMTEQ LIMITEDInventors: Charles Nduka, Andrew Cleal, James Archer, Mohsen Fatoorechi
-
Patent number: 11764740Abstract: Examples of amplifiers accurately generate control currents for control terminals of output drivers using current-replication transistors and current mirrors. An input terminal of a first current mirror is coupled to the control terminal of a first current-replication transistor, and an input terminal of a second current mirror is coupled to the control terminal of a second current-replication transistor. The output terminals of the first and second current mirrors are coupled to the control terminals of first and second output drivers, respectively. First and second intermediate currents indicative of first and second currents flowing to the first and second output driver elements, respectively, are generated. Using the first and second current mirrors, first and second control currents are generated to control the first and second output driver elements, respectively, by scaling the first and second intermediate currents according to the gain factors of the current mirrors.Type: GrantFiled: August 31, 2021Date of Patent: September 19, 2023Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Tyler James Archer, Joel Martin Halbert, Bharath Karthik Vasan
-
Patent number: 11722104Abstract: Examples of amplifiers use current-replication transistors and a separation circuit coupled to such transistors to separate error current components from other current components in a pre-driver of an amplifier. In response to driving the current-replication transistors with the separated error current components, replica base current components that approximate error-modulation components of the pre-driver base currents are generated. Replica-current subtraction circuitry coupled to the current-replication transistors then subtract the replica base current components from the pre-driver base currents, affecting cancellation of the error-modulation components of the pre-driver base currents.Type: GrantFiled: August 31, 2021Date of Patent: August 8, 2023Assignee: Texas Instruments IncorporatedInventors: Tyler James Archer, Paul Gerard Damitio, Joel Martin Halbert, Bharath Karthik Vasan
-
Publication number: 20230123831Abstract: Some embodiments are directed to a biometric authentication system including headwear having a plurality of biosensors each configured to sample muscle activity so as to obtain a respective time-varying signal, a data store for storing a data set representing characteristic muscle activity for one or more users, and a processor configured to process the time-varying signals from the biosensors in dependence on the stored data set so as to determine a correspondence between a time-varying signal and characteristic muscle activity of one of the one or more users, and in dependence on the determined correspondence, authenticate the time-varying signals as being associated with that user.Type: ApplicationFiled: December 16, 2022Publication date: April 20, 2023Inventors: Charles NDUKA, Andrew CLEAL, James ARCHER, Mohsen FATOORECHI
-
Publication number: 20230069204Abstract: Examples of amplifiers accurately generate control currents for control terminals of output drivers using current-replication transistors and current mirrors. An input terminal of a first current mirror is coupled to the control terminal of a first current-replication transistor, and an input terminal of a second current mirror is coupled to the control terminal of a second current-replication transistor. The output terminals of the first and second current mirrors are coupled to the control terminals of first and second output drivers, respectively. First and second intermediate currents indicative of first and second currents flowing to the first and second output driver elements, respectively, are generated. Using the first and second current mirrors, first and second control currents are generated to control the first and second output driver elements, respectively, by scaling the first and second intermediate currents according to the gain factors of the current mirrors.Type: ApplicationFiled: August 31, 2021Publication date: March 2, 2023Inventors: Tyler James Archer, Joel Martin Halbert, Bharath Karthik Vasan
-
Publication number: 20230060318Abstract: Examples of amplifiers use current-replication transistors and a separation circuit coupled to such transistors to separate error current components from other current components in a pre-driver of an amplifier. In response to driving the current-replication transistors with the separated error current components, replica base current components that approximate error-modulation components of the pre-driver base currents are generated. Replica-current subtraction circuitry coupled to the current-replication transistors then subtract the replica base current components from the pre-driver base currents, affecting cancellation of the error-modulation components of the pre-driver base currents.Type: ApplicationFiled: August 31, 2021Publication date: March 2, 2023Inventors: Tyler James Archer, Paul Gerard Damitio, Joel Martin Halbert, Bharath Karthik Vasan
-
Patent number: 11538279Abstract: Some embodiments are directed to a biometric authentication system including headwear having a plurality of biosensors each configured to sample muscle activity so as to obtain a respective time-varying signal, a data store for storing a data set representing characteristic muscle activity for one or more users, and a processor configured to process the time-varying signals from the biosensors in dependence on the stored data set so as to determine a correspondence between a time-varying signal and characteristic muscle activity of one of the one or more users, and in dependence on the determined correspondence, authenticate the time-varying signals as being associated with that user.Type: GrantFiled: May 10, 2021Date of Patent: December 27, 2022Assignee: EMTEQ LIMITEDInventors: Charles Nduka, Andrew Cleal, James Archer, Mohsen Fatoorechi
-
Publication number: 20210271861Abstract: Some embodiments are directed to a biometric authentication system including headwear having a plurality of biosensors each configured to sample muscle activity so as to obtain a respective time-varying signal, a data store for storing a data set representing characteristic muscle activity for one or more users, and a processor configured to process the time-varying signals from the biosensors in dependence on the stored data set so as to determine a correspondence between a time-varying signal and characteristic muscle activity of one of the one or more users, and in dependence on the determined correspondence, authenticate the time-varying signals as being associated with that user.Type: ApplicationFiled: May 10, 2021Publication date: September 2, 2021Inventors: Charles NDUKA, Andrew CLEAL, James ARCHER, Mohsen FATOORECHI
-
Patent number: 11003899Abstract: Some embodiments are directed to a biometric authentication system including headwear having a plurality of biosensors each configured to sample muscle activity so as to obtain a respective time-varying signal, a data store for storing a data set representing characteristic muscle activity for one or more users, and a processor configured to process the time-varying signals from the biosensors in dependence on the stored data set so as to determine a correspondence between a time-varying signal and characteristic muscle activity of one of the one or more users, and in dependence on the determined correspondence, authenticate the time-varying signals as being associated with that user.Type: GrantFiled: February 27, 2018Date of Patent: May 11, 2021Assignee: EMTEQ LIMITEDInventors: Charles Nduka, Andrew Cleal, James Archer, Mohsen Fatoorechi
-
Patent number: 10913097Abstract: A bending device for forming a product from a workpiece includes a shaft driven to rotate by a motor, an actuator including an extendable end configured to secure a portion of the workpiece, and a die coupled to the shaft and driven about an axis. The die includes a peripheral portion including a channel configured to receive the workpiece. The channel includes a first end and a second end offset from the first end in a direction parallel to the axis. Rotation of the die about the axis causes the workpiece to bend along the channel.Type: GrantFiled: May 31, 2017Date of Patent: February 9, 2021Assignee: Hubbell IncorporatedInventor: James Archer
-
Patent number: 10668037Abstract: A method of treating chronic kidney disease in a mammalian subject by administering a composition that includes L-arginine, glycine, L-glutamine, L-histidine, L-aspartic acid L-glutamic acid, and L-carnosine.Type: GrantFiled: May 18, 2017Date of Patent: June 2, 2020Assignee: BIO HEALTH SOLUTIONS, LLCInventor: James Archer
-
Publication number: 20200034608Abstract: Some embodiments are directed to a biometric authentication system including headwear having a plurality of biosensors each configured to sample muscle activity so as to obtain a respective time-varying signal, a data store for storing a data set representing characteristic muscle activity for one or more users, and a processor configured to process the time-varying signals from the biosensors in dependence on the stored data set so as to determine a correspondence between a time-varying signal and characteristic muscle activity of one of the one or more users, and in dependence on the determined correspondence, authenticate the time-varying signals as being associated with that user.Type: ApplicationFiled: February 27, 2018Publication date: January 30, 2020Inventors: Charles NDUKA, Andrew CLEAL, James ARCHER, Mohsen FATOORECHI
-
Publication number: 20170341120Abstract: A bending device for forming a product from a workpiece includes a shaft driven to rotate by a motor, an actuator including an extendable end configured to secure a portion of the workpiece, and a die coupled to the shaft and driven about an axis. The die includes a peripheral portion including a channel configured to receive the workpiece. The channel includes a first end and a second end offset from the first end in a direction parallel to the axis. Rotation of the die about the axis causes the workpiece to bend along the channel.Type: ApplicationFiled: May 31, 2017Publication date: November 30, 2017Inventor: James Archer
-
Publication number: 20170319528Abstract: A method of treating chronic kidney disease in a mammalian subject by administering a composition that includes L-arginine, glycine, L-glutamine, L-histidine, L-aspartic acid L-glutamic acid, and L-carnosine.Type: ApplicationFiled: May 18, 2017Publication date: November 9, 2017Inventor: James Archer
-
Patent number: 9669010Abstract: A method of treating chronic kidney disease by administering to a subject a composition that includes L-arginine, glycine, L-glutamine, L-histidine, L-aspartic acid L-glutamic acid, and L-carnosine.Type: GrantFiled: December 6, 2013Date of Patent: June 6, 2017Assignee: Bio Health Solutions, LLCInventor: James Archer
-
Publication number: 20150297567Abstract: A method of treating chronic kidney disease by administering to a subject a composition that includes L-arginine, glycine, L-glutamine, L-histidine, L-aspartic acid L-glutamic acid, and L-carnosine.Type: ApplicationFiled: December 6, 2013Publication date: October 22, 2015Applicant: Bio Health Solutions, LLCInventor: James Archer