Patents by Inventor Preston Jett
Preston Jett 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: 7526250Abstract: Apparatuses, systems and methods for transmitting and receiving modulated impulse radio signals. An impulse radio receiver includes a time base, a precision timing generator, a template generator, a delay, first and second correlators, a data detector and a time base adjustor. The time base produces a periodic timing signal that is used by the precision timing generator to produce a timing trigger signal. The template generator uses the timing trigger signal to produce a template signal. A delay receives the template signal and outputs a delayed template signal. When an impulse radio signal is received, the first correlator correlates the received impulse radio signal with the template signal to produce a first correlator output signal, and the second correlator correlates the received impulse radio signal with the delayed template signal to produce a second correlator output signal. The data detector produces a data signal based on at least the first correlator output signal.Type: GrantFiled: August 30, 2005Date of Patent: April 28, 2009Assignee: Time Domain CorporationInventors: Larry W. Fullerton, James L. Richards, Ivan A. Cowie, David M. Dickson, Vernon R. Brethour, Preston Jett
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Publication number: 20060007988Abstract: Apparatuses, systems and methods for transmitting and receiving modulated impulse radio signals. An impulse radio receiver includes a time base, a precision timing generator, a template generator, a delay, first and second correlators, a data detector and a time base adjustor. The time base produces a periodic timing signal that is used by the precision timing generator to produce a timing trigger signal. The template generator uses the timing trigger signal to produce a template signal. A delay receives the template signal and outputs a delayed template signal. When an impulse radio signal is received, the first correlator correlates the received impulse radio signal with the template signal to produce a first correlator output signal, and the second correlator correlates the received impulse radio signal with the delayed template signal to produce a second correlator output signal. The data detector produces a data signal based on at least the first correlator output signal.Type: ApplicationFiled: August 30, 2005Publication date: January 12, 2006Applicant: Time Domain CorporationInventors: Larry Fullerton, James Richards, Ivan Cowie, David Dickson, Vernon Brethour, Preston Jett
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Patent number: 6937663Abstract: A baseband signal converter device for an impulse radio receiver combines multiple converter circuits and an RF amplifier in a single integrated circuit package. Each converter circuit includes an integrator circuit that integrates a portion of each RF pulse during a sampling period triggered by a timing pulse generator. The integrator capacitor is isolated by a pair of Schottky diodes connected to a pair of load resistors. A current equalizer circuit equalizes the current flowing through the load resistors when the integrator is not sampling. Current steering logic transfers load current between the diodes and a constant bias circuit depending on whether a sampling pulse is present.Type: GrantFiled: January 23, 2002Date of Patent: August 30, 2005Assignee: Alereon, Inc.Inventors: Preston Jett, Lawrence E. Larson, Bret A. Pollack, David A. Rowe
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Patent number: 6937667Abstract: Apparatuses, systems and methods for transmitting and receiving modulated impulse radio signals. An impulse radio receiver includes a time base, a precision timing generator, a template generator, a delay, first and second correlators, a data detector and a time base adjustor. The time base produces a periodic timing signal that is used by the precision timing generator to produce a timing trigger signal. The template generator uses the timing trigger signal to produce a template signal. A delay receives the template signal and outputs a delayed template signal. When an impulse radio signal is received, the first correlator correlates the received impulse radio signal with the template signal to produce a first correlator output signal, and the second correlator correlates the received impulse radio signal with the delayed template signal to produce a second correlator output signal. The data detector produces a data signal based on at least the first correlator output signal.Type: GrantFiled: March 29, 2000Date of Patent: August 30, 2005Assignee: Time Domain CorporationInventors: Larry W. Fullerton, James L. Richards, Ivan A. Cowie, David M. Dickson, Vernon R. Brethour, Preston Jett
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Patent number: 6748040Abstract: An apparatus for effecting synchrony with a received transmitted signal in a wireless communication system is disclosed. The transmitted signal is encoded according to a predetermined coding scheme and arranged in a plurality of first frames in a first succession having a first period. The apparatus comprises: (a) a timing circuit for generating a trigger signal for effecting periodic sampling of the transmitted signal at a sampling node; the trigger signal and the transmitted signal cooperate at the sampling node to generate a detection indication signal; (b) a reference signal source for generating a reference signal for the timing circuit in a plurality of second frames in a second succession having a second period; an amount by which the first period and the second period differ establishes a base offset; (c) an offset generator device; the offset generator device is coupled with the sampling node and with the timing circuit; the offset generator device receives the detection indication signal.Type: GrantFiled: November 9, 2000Date of Patent: June 8, 2004Assignee: Time Domain CorporationInventors: Timothy A. Johnson, Preston Jett
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Patent number: 6636573Abstract: A frame reference signal is produced as a function of a clock signal. A first timing generator generates a coarse timing signal having a nominal period and a transition occurring at a precise temporal position with respect to the nominal period. The nominal period is a function of the frame reference signal. The temporal position is a function of a first input timing command and the clock signal. A second timing generator generates at least one fine timing transition as a function of a second input timing command and the clock signal. A combiner circuit uses the coarse timing signal to select one of the at least one fine timing transitions to output a precise timing signal, wherein the precise timing signal has a high temporal precision with respect to the frame reference signal.Type: GrantFiled: September 18, 2001Date of Patent: October 21, 2003Assignee: Time Domain CorporationInventors: James L Richards, Preston Jett, Larry W Fullerton, Lawrence E Larson, David A Rowe
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Publication number: 20020126769Abstract: A baseband signal converter device for an impulse radio receiver combines multiple converter circuits and an RF amplifier in a single integrated circuit package. Each converter circuit includes an integrator circuit that integrates a portion of each RF pulse during a sampling period triggered by a timing pulse generator. The integrator capacitor is isolated by a pair of Schottky diodes connected to a pair of load resistors. A current equalizer circuit equalizes the current flowing through the load resistors when the integrator is not sampling. Current steering logic transfers load current between the diodes and a constant bias circuit depending on whether a sampling pulse is present.Type: ApplicationFiled: January 23, 2002Publication date: September 12, 2002Inventors: Preston Jett, Lawrence E. Larson, Bret A. Pollack, David A. Rowe
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Patent number: 6421389Abstract: A baseband signal converter device for an impulse radio receiver combines multiple converter circuits and an RF amplifier in a single integrated circuit package. Each converter circuit includes an integrator circuit that integrates a portion of each RF pulse during a sampling period triggered by a timing pulse generator. The integrator capacitor is isolated by a pair of Schottky diodes connected to a pair of load resistors. A current equalizer circuit equalizes the current flowing through the load resistors when the integrator is not sampling. Current steering logic transfers load current between the diodes and a constant bias circuit depending on whether a sampling pulse is present.Type: GrantFiled: July 16, 1999Date of Patent: July 16, 2002Assignee: Time Domain CorporationInventors: Preston Jett, Lawrence E. Larson, Bret A. Pollack, David A. Rowe
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Publication number: 20020075976Abstract: A frame reference signal is produced as a function of a clock signal. A first timing generator generates a coarse timing signal having a nominal period and a transition occurring at a precise temporal position with respect to the nominal period. The nominal period is a function of the frame reference signal. The temporal position is a function of a first input timing command and the clock signal. A second timing generator generates at least one fine timing transition as a function of a second input timing command and the clock signal. A combiner circuit uses the coarse timing signal to select one of the at least one fine timing transitions to output a precise timing signal, wherein the precise timing signal has a high temporal precision with respect to the frame reference signal.Type: ApplicationFiled: September 18, 2001Publication date: June 20, 2002Applicant: Time Domain CorporationInventors: James L. Richards, Preston Jett, Larry W. Fullerton, Lawrence E. Larson, David A. Rowe
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Patent number: 6304623Abstract: A frame reference signal is produced as a function of a clock signal. A first timing generator generates a coarse timing signal having a nominal period and a transition occurring at a precise temporal position with respect to the nominal period. The nominal period is a function of the frame reference signal. The temporal position is a function of a first input timing command and the clock signal. A second timing generator generates at least one fine timing transition as a function of a second input timing command and the clock signal. A combiner circuit uses the coarse timing signal to select one of the at least one fine timing transitions to output a precise timing signal, wherein the precise timing signal has a high temporal precision with respect to the frame reference signal.Type: GrantFiled: September 3, 1998Date of Patent: October 16, 2001Assignee: Time Domain CorporationInventors: James L. Richards, Preston Jett, Larry W. Fullerton, Lawrence E. Larson, David A. Rowe