Patents by Inventor James E. O'Toole
James E. O'Toole 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: 6600428Abstract: A radio frequency identification device comprises an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.Type: GrantFiled: September 10, 1998Date of Patent: July 29, 2003Assignee: Micron Technology, Inc.Inventors: James E. O'Toole, John R. Tuttle, Mark E. Tuttle, Tyler Lowrey, Kevin M. Devereaux, George E. Pax, Brian P. Higgins, David K. Ovard, Shu-Sun Yu, Robert R. Rotzoll
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Publication number: 20030099210Abstract: A radio frequency identification device comprises an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.Type: ApplicationFiled: May 2, 2000Publication date: May 29, 2003Inventors: JAMES E. O'TOOLE, JOHN R. TUTTLE, MARK E. TUTTLE, TYLER A. LOWREY, KEVIN M. DEVEREAUX, GEORGE E. PAX, BRIAN P. HIGGINS, DAVID K. OVARD, SHU-SUN YU, ROBERT R. ROTZOLL
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Publication number: 20030043949Abstract: A radio frequency identification device comprises an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.Type: ApplicationFiled: March 30, 2001Publication date: March 6, 2003Inventors: James E. O'Toole, John R. Tuttle, Mark E. Tuttle, Tyler A. Lowrey, Kevin M. Devereaux, George E. Pax, Brian P. Higgins, Shu-Sun Yu, David K. Ovard, Robert R. Rotzoll
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Patent number: 6492192Abstract: A method of forming an integrated circuit including a Schottky diode includes providing a substrate of a first conductivity type, defining a region of a second conductivity type relative to the substrate and forming an insulator over the second conductivity type region. The method also includes removing an area of the insulator for definition of a contact hole, and removing an area encircling the contact hole and forming highly doped regions of the second conductivity type in second conductivity type regions encircling the contact hole. The method further includes depositing a Schottky metal in the contact hole and annealing the metal to form a suicide interface to the second conductivity type region.Type: GrantFiled: September 11, 1998Date of Patent: December 10, 2002Assignee: Micron Technology, Inc.Inventors: James E. O'Toole, John R. Tuttle, Mark E. Tuttle, Tyler Lowrey, Kevin M. Devereaux, George E. Pax, Brian P. Higgins, David K. Ovard, Shu-Sun Yu, Robert R. Rotzoll
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Publication number: 20020174153Abstract: A radio frequency identification device comprises an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.Type: ApplicationFiled: April 26, 2002Publication date: November 21, 2002Inventors: James E. O'Toole, John R. Tuttle, Mark E. Tuttle, Tyler A. Lowrey, Kevin M. Devereaux, George E. Pax, Brian P. Higgins, Shu-Sun Yu, David K. Ovard, Robert R. Rotzoll
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Patent number: 6466634Abstract: A radio frequency identification device comprises an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.Type: GrantFiled: September 28, 1998Date of Patent: October 15, 2002Assignee: Micron Technology, Inc.Inventors: James E. O'Toole, John R. Tuttle, Mark E. Tuttle, Tyler Lowrey, Kevin M. Devereaux, George E. Pax, Brian P. Higgins, David K. Ovard, Shu-Sun Yu, Robert R. Rotzoll
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Patent number: 6384648Abstract: A radio frequency identification device comprises an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.Type: GrantFiled: April 14, 2000Date of Patent: May 7, 2002Assignee: Micron Technology, Inc.Inventors: James E. O'Toole, John R. Tuttle, Mark E. Tuttle, Tyler Lowrey, Kevin M. Devereaux, George E. Pax, Brian P. Higgins, David K. Ovard, Shu-Sun Yu, Robert R. Rotzoll
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Patent number: 6351190Abstract: A stage for a voltage controlled oscillator includes a first p-channel transistor having a gate defining a control node, having a source adapted to be coupled to a supply voltage, and having a drain; a second p-channel transistor having a gate coupled to the control node, having a source coupled to the supply voltage, and having a drain; a first n-channel transistor having a gate defining a first input, having a drain coupled to the drain of the first p-channel transistor and defining a first node, and having a source; a second n-channel transistor having a gate defining a second input, having a drain coupled to the drain of the second p-channel transistor and defining a second node, and having a source; a current draw; first and second loads; a first source follower having an input coupled to the first node; and a second source follower.Type: GrantFiled: May 9, 2000Date of Patent: February 26, 2002Assignee: Micron Technology, Inc.Inventors: James E. O'Toole, John R. Tuttle, Mark E. Tuttle, Tyler Lowrey, Kevin M. Devereaux, George E. Pax, Brian P. Higgins, Shu-Sun Yu, David K. Ovard, Robert R. Rotzoll
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Patent number: 6337634Abstract: A radio frequency identification device comprises an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.Type: GrantFiled: September 10, 1998Date of Patent: January 8, 2002Assignee: Micron Technology, Inc.Inventors: James E. O'Toole, John R. Tuttle, Mark E. Tuttle, Tyler Lowrey, Kevin M. Devereaux, George E. Pax, Brian P. Higgins, David K. Ovard, Shu-Sun Yu, Robert R. Rotzoll
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Publication number: 20010050580Abstract: A radio frequency identification device comprises an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.Type: ApplicationFiled: April 3, 2000Publication date: December 13, 2001Inventors: James E. O'Toole, John R. Tuttle, Mark E. Tuttle, Tyler Lowrey, Kevin M. Devereaux, George E. Pax, Brian P. Higgins, David K. Ovard, Shu-Sun Yu, Robert R. Rotzoll
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Patent number: 6316975Abstract: A radio frequency identification device comprises an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.Type: GrantFiled: September 28, 1998Date of Patent: November 13, 2001Assignee: Micron Technology, Inc.Inventors: James E. O'Toole, John R. Tuttle, Mark E. Tuttle, Tyler Lowery, Kevin M. Devereaux, George E. Pax, Brian P. Higgins, David K. Ovard, Robert R. Rotzoll, Shu-Sun Yu
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Patent number: 6314440Abstract: A radio frequency identification device comprises an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.Type: GrantFiled: September 22, 1998Date of Patent: November 6, 2001Assignee: Micron Technology, Inc.Inventors: James E. O'Toole, John R. Tuttle, Mark E. Tuttle, Tyler Lowrey, Kevin M. Devereaux, George E. Pax, Brian P. Higgins, David K. Ovard, Shu-Sun Yu, Robert R. Rotzoll
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Patent number: 6285261Abstract: A method of using a phase lock loop to receive an oscillating input signal and produce an output signal, the phase lock loop comprising a plurality of flip-flops which are chained together, the plurality of flip-flops including a first flip-flop having a first output, including a second flip-flop having an input coupled to the first output and having a second output, and including a third flip-flop having an input coupled to the second output, the phase lock loop further comprising a control node, the method including using the flip-flops to determine time spacing between transitions to perform a frequency comparison of the output signal relative to the input signal; extracting a clock from an input digital signal; and performing phase control and adjusting the voltage on the control node of the voltage controlled oscillator.Type: GrantFiled: July 5, 2000Date of Patent: September 4, 2001Assignee: Micron Technology, Inc.Inventors: George E. Pax, James E. O'Toole, Dan M. Griffin
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Patent number: 6278698Abstract: A radio frequency identification device comprises an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.Type: GrantFiled: September 14, 1998Date of Patent: August 21, 2001Assignee: Micron Technology, Inc.Inventors: James E. O'Toole, John R. Tuttle, Mark E. Tuttle, Tyler Lowrey, Kevin M. Devereaux, George E. Pax, Brian P. Higgins, David K. Ovard, Shu-Sun Yu, Robert R. Rotzoll
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Patent number: 6249185Abstract: An amplifier powered by a selectively engageable voltage source and a method for operating the amplifier. The amplifier includes first and second electrodes for receiving an input signal to be amplified. The first and second electrodes are adapted to be respectively connected to coupling capacitors. The amplifier also includes a differential amplifier having inputs respectively connected to the first and second electrodes, and having an output. The amplifier additionally includes selectively engageable resistances coupled between the voltage source and respective inputs of the differential amplifier and defining, with the coupling capacitors, the high pass characteristics of the circuit. The amplifier further includes second selectively engageable resistances coupled between the voltage source and respective inputs of the differential amplifier.Type: GrantFiled: September 14, 1998Date of Patent: June 19, 2001Assignee: Micron Technology, Inc.Inventors: James E. O'Toole, John R. Tuttle, Mark E. Tuttle, Tyler Lowrey, Kevin M. Devereaux, George E. Pax, Brian P. Higgins, David K. Ovard, Shu-Sun Yu, Robert R. Rotzoll
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Patent number: 6198332Abstract: A frequency doubler includes a first Gilbert cell, a second Gilbert cell coupled to the first Gilbert cell, a frequency generator configured to apply a first sinusoidal wave to the first Gilbert cell, and a phase shifter applying a sinusoidal wave shifted from the first sinusoidal wave to the second Gilbert cell. A method of doubling frequency without using a feedback loop includes providing a first Gilbert cell, providing a second Gilbert cell coupled to the first Gilbert cell, applying a first sinusoidal wave to the first Gilbert cell, and applying a sinusoidal wave shifted from the first sinusoidal wave to the second Gilbert cell.Type: GrantFiled: September 22, 1998Date of Patent: March 6, 2001Assignee: Micron Technology, Inc.Inventors: James E. O'Toole, John R. Tuttle, Mark E. Tuttle, Tyler Lowrey, Kevin M. Devereaux, George E. Pax, Brian P. Higgins, David K. Ovard, Shu-Sun Yu, Robert R. Rotzoll
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Patent number: 6198357Abstract: A stage for a ring oscillator, the stage including a first p-channel transistor having a gate defining a control node, having a source adapted to be coupled to a supply voltage, and having a drain; a second p-channel transistor having a gate coupled to the control node, having a source coupled to the supply voltage, and having a drain; a first n-channel transistor having a gate defining a first input, having a drain coupled to the drain of the first p-channel transistor and defining a first node, and having a source; a second n-channel transistor having a gate defining a second input, having a drain coupled to the drain of the second p-channel transistor and defining a second node, and having a source; a current source coupled to the sources of the first and second n-channel transistors directing current from the sources of the first and second n-channel transistors; a first resistor coupled between the supply voltage and the drain of the first n-type transistor; a second resistor coupled between the supply vType: GrantFiled: September 14, 1998Date of Patent: March 6, 2001Assignee: Micron Technology, Inc.Inventors: James E. O'Toole, John R. Tuttle, Mark E. Tuttle, Tyler Lowrey, Kevin M. Devereaux, George E. Pax, Brian P. Higgins, David K. Ovard, Shu-Sun Yu, Robert R. Rotzoll
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Patent number: 6157230Abstract: An integrated circuit comprising a receiver, a transmitter, and a frequency lock loop configured to supply clock signals to the receiver and transmitter, the frequency lock loop including a current source having a thermal voltage generator, a current controlled oscillator having a plurality of selectively engageable current mirrors multiplying up the current of the current source, the frequency of the frequency lock loop varying in response to selection of the current mirrors, the current mirrors including transistors operating in a subthreshold mode.Type: GrantFiled: September 14, 1998Date of Patent: December 5, 2000Assignee: Micron Technology, Inc.Inventors: James E. O'Toole, John R. Tuttle, Mark E. Tuttle, Tyler Lowrey, Kevin M. Devereaux, George E. Pax, Brian P. Higgins, David K. Ovard, Shu-Sun Yu, Robert R. Rotzoll
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Patent number: 6130602Abstract: A radio frequency identification device comprises an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.Type: GrantFiled: August 29, 1996Date of Patent: October 10, 2000Assignee: Micron Technology, Inc.Inventors: James E. O'Toole, John R. Tuttle, Mark E. Tuttle, Tyler Lowrey, Kevin M. Devereaux, George E. Pax, Brian P. Higgins, David K. Ovard, Shu-Sun Yu, Robert R. Rotzoll
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Patent number: 6100765Abstract: A communications system including a clock recovery circuit that extracts a clock signal from incoming digital data, the clock recovery circuit comprising: a voltage controlled oscillator having a control node and an output producing an output wave having a frequency that varies in response to a voltage applied to the control node; charge pump and loop filter circuitry that controls the rate of change of the voltage on the control node of the voltage controlled oscillator; a start-up circuit that performs frequency detection and, in conjunction with the charge pump and loop filter circuitry, adjusts the voltage on the control node of the voltage controlled oscillator; and a state machine that performs phase detection and adjusts the voltage on the control node of the voltage controlled oscillator.Type: GrantFiled: September 16, 1999Date of Patent: August 8, 2000Assignee: Micron Technology, Inc.Inventors: George E. Pax, James E. O'Toole