Patents by Inventor Geoffrey C. Dawe
Geoffrey C. Dawe 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: 7982527Abstract: A frequency mixer or modulator circuit that is reconfigurable through electronic programming among active and passive operation, and/or harmonic and sub-harmonic operation, and/or up-conversion and down-conversion, and/or no-overlap, off-overlap, and on-overlap mixing, and/or upper-sideband modulation and lower-sideband modulation. In one example, the frequency mixer or modulator circuit also includes automatic gain control.Type: GrantFiled: January 5, 2009Date of Patent: July 19, 2011Assignee: BitWave Semiconductor, Inc.Inventors: Geoffrey C. Dawe, Krenar Komoni
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Patent number: 7764125Abstract: A multi-band, multi-standard programmable power amplifier having tunable impedance matching input and output networks and programmable device characteristics. The impedance of either or both of the impedance matching input and output networks is tunable responsive to one or more control signals. In one example, the programmable power amplifier incorporates a feedback control loop and the control signal(s) are varied responsive to the feedback loop.Type: GrantFiled: May 23, 2008Date of Patent: July 27, 2010Assignee: BitWave Semiconductor, Inc.Inventor: Geoffrey C Dawe
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Publication number: 20100171542Abstract: A frequency mixer or modulator circuit that is reconfigurable through electronic programming among active and passive operation, and/or harmonic and sub-harmonic operation, and/or up-conversion and down-conversion, and/or no-overlap, off-overlap, and on-overlap mixing, and/or upper-sideband modulation and lower-sideband modulation. In one example, the frequency mixer or modulator circuit also includes automatic gain control.Type: ApplicationFiled: January 5, 2009Publication date: July 8, 2010Inventors: Geoffrey C. Dawe, Krenar Komoni
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Patent number: 7580684Abstract: A fully integrated, programmable mixed-signal radio transceiver comprising a radio frequency integrated circuit (RFIC) which is frequency and protocol agnostic with digital inputs and outputs, the radio transceiver being programmable and configurable for multiple radio frequency bands and standards and being capable of connecting to many networks and service providers. The RFIC includes a tunable resonant circuit that includes a transmission line having an inductance, a plurality of switchable capacitors configured to be switched into and out of the tunable resonant circuit in response to a first control signal, and at least one variable capacitor that can be varied in response to a second control signal, wherein a center resonant frequency of the resonant circuit is electronically tunable responsive to the first and second control signals that control a first capacitance value of the plurality of switchable capacitors and a second capacitance value of the at least one variable capacitor.Type: GrantFiled: February 10, 2005Date of Patent: August 25, 2009Assignee: BitWave Semiconductor, Inc.Inventors: Russell J. Cyr, Geoffrey C. Dawe
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Publication number: 20090079524Abstract: A fully integrated, programmable mixed-signal radio transceiver comprising a radio frequency integrated circuit (RFIC) which is frequency and protocol agnostic with digital inputs and outputs, the radio transceiver being programmable and configurable for multiple radio frequency bands and standards and being capable of connecting to many networks and service providers. The RFIC includes a tunable resonant circuit that includes a transmission line having an inductance, a plurality of switchable capacitors configured to be switched into and out of the tunable resonant circuit in response to a first control signal, and at least one variable capacitor that can be varied in response to a second control signal, wherein a center resonant frequency of the resonant circuit is electronically tunable responsive to the first and second control signals that control a first capacitance value of the plurality of switchable capacitors and a second capacitance value of the at least one variable capacitor.Type: ApplicationFiled: December 3, 2008Publication date: March 26, 2009Applicant: BitWave Semiconductor, Inc.Inventors: Russell J. Cyr, Geoffrey C. Dawe
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Patent number: 7508898Abstract: A fully integrated, programmable mixed-signal transceiver comprising a radio frequency integrated circuit (RFIC) which is frequency and protocol agnostic with digital inputs and outputs, the transceiver being programmable and configurable for multiple radio frequency bands and standards and being capable of connecting to many networks and service providers. The RFIC does not use spiral inductors and instead includes transmission line inductors allowing for improved scalability. Components of the transceiver are programmable to allow the transceiver to switch between different frequency bands of operating. Frequency switching can be accomplished though the content of digital registers coupled to the components.Type: GrantFiled: August 11, 2005Date of Patent: March 24, 2009Assignee: BitWave Semiconductor, Inc.Inventors: Russell J. Cyr, Geoffrey C. Dawe, Jose L. Bohorquez
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Patent number: 7482887Abstract: A fully integrated, programmable mixed-signal radio transceiver comprising a radio frequency integrated circuit (RFIC) which is frequency and protocol agnostic with digital inputs and outputs, the radio transceiver being programmable and configurable for multiple radio frequency bands and standards and being capable of connecting to many networks and service providers. The RFIC includes a tunable resonant circuit that includes a transmission line having an inductance, a plurality of switchable capacitors configured to be switched into and out of the tunable resonant circuit in response to a first control signal, and at least one variable capacitor that can be varied in response to a second control signal, wherein a center resonant frequency of the resonant circuit is electronically tunable responsive to the first and second control signals that control a first capacitance value of the plurality of switchable capacitors and a second capacitance value of the at least one variable capacitor.Type: GrantFiled: February 10, 2005Date of Patent: January 27, 2009Assignee: Bitwave Semiconductor, Inc.Inventors: Russell J. Cyr, Geoffrey C. Dawe
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Publication number: 20080290947Abstract: A multi-band, multi-standard programmable power amplifier having tunable impedance matching input and output networks and programmable device characteristics. The impedance of either or both of the impedance matching input and output networks is tunable responsive to one or more control signals. In one example, the programmable power amplifier incorporates a feedback control loop and the control signal(s) are varied responsive to the feedback loop.Type: ApplicationFiled: May 23, 2008Publication date: November 27, 2008Inventor: Geoffrey C. Dawe
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Patent number: 7323945Abstract: A fully integrated, programmable mixed-signal radio transceiver comprising a radio frequency integrated circuit (RFIC) which is frequency and protocol agnostic with digital inputs and outputs, the radio transceiver being programmable and configurable for multiple radio frequency bands and standards and being capable of connecting to many networks and service providers. The RFIC includes a tunable resonant circuit that includes a transmission line having an inductance, a plurality of switchable capacitors configured to be switched into and out of the tunable resonant circuit in response to a first control signal, and at least one variable capacitor that can be varied in response to a second control signal, wherein a center resonant frequency of the resonant circuit is electronically tunable responsive to the first and second control signals that control a first capacitance value of the plurality of switchable capacitors and a second capacitance value of the at least one variable capacitor.Type: GrantFiled: February 10, 2005Date of Patent: January 29, 2008Assignee: BitWave Semiconductor, Inc.Inventors: Russell J. Cyr, Geoffrey C. Dawe
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Patent number: 6631257Abstract: A system and method for a mixer circuit places the RF and mixer core LO transistors on the same level in anti-series. The mixer circuit provides increased headroom, excellent linearity, controllable conversion-gain, and operates with a reduced supply voltage requirement.Type: GrantFiled: April 20, 2000Date of Patent: October 7, 2003Assignee: Microtune (Texas), L.P.Inventors: William A. White, Geoffrey C. Dawe
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Patent number: RE45418Abstract: A multi-band, multi-standard programmable power amplifier having tunable impedance matching input and output networks and programmable device characteristics. The impedance of either or both of the impedance matching input and output networks is tunable responsive to one or more control signals. In one example, the programmable power amplifier incorporates a feedback control loop and the control signal(s) are varied responsive to the feedback loop.Type: GrantFiled: July 27, 2012Date of Patent: March 17, 2015Assignee: TriDev Research LLCInventor: Geoffrey C. Dawe