Patents by Inventor Forrest Williams
Forrest Williams 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: 11536793Abstract: A calibration apparatus calibrates cross-frequency phases of large-signal network analyzer measurements and includes: a signal generator; a vector network analyzer that includes couplers and receivers that receive the calibration signal and the reference multitone signal from the signal generator; a calibration receiver that receives a calibration signal from the vector network analyzer and produces a digitized calibration temporal signal from the calibration signal; and a signal processor in communication with the signal generator and the vector network analyzer and that: receives the reference digitized signal from the reference receiver; receives the forward digitized signal from the forward coupled receiver; receives the reverse digitized signal from the reverse coupled receiver; receives the digitized calibration temporal signal from the calibration receiver; and produces a calibration factor from the reference digitized signal, the forward digitized signal, the reverse digitized signal, and the digitizeType: GrantFiled: March 5, 2021Date of Patent: December 27, 2022Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Dylan Forrest Williams, Aric Warner Sanders
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Publication number: 20210286036Abstract: A calibration apparatus calibrates cross-frequency phases of large-signal network analyzer measurements and includes: a signal generator; a vector network analyzer that includes couplers and receivers that receive the calibration signal and the reference multitone signal from the signal generator; a calibration receiver that receives a calibration signal from the vector network analyzer and produces a digitized calibration temporal signal from the calibration signal; and a signal processor in communication with the signal generator and the vector network analyzer and that: receives the reference digitized signal from the reference receiver; receives the forward digitized signal from the forward coupled receiver; receives the reverse digitized signal from the reverse coupled receiver; receives the digitized calibration temporal signal from the calibration receiver; and produces a calibration factor from the reference digitized signal, the forward digitized signal, the reverse digitized signal, and the digitizeType: ApplicationFiled: March 5, 2021Publication date: September 16, 2021Inventors: Dylan Forrest Williams, Aric Warner Sanders
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Publication number: 20090219491Abstract: An illumination system for transforming at least one laser light beam having a non-uniform distribution in a first axis and a second axis to a beam having a substantially uniform distribution in the first axis while preserving the non-uniform distribution in the second axis. The transformed beam may be imaged as a line image onto a one-dimensional light modulation device. The illumination system may comprise a light tunnel having two sides that interact with the at least one laser light beam in the first axis and two sides that do not interact with the light in the second axis.Type: ApplicationFiled: October 20, 2008Publication date: September 3, 2009Applicant: Evans & Sutherland Computer CorporationInventors: Forrest Williams, Robert Christensen, David M. Bloom, Allen Tanner
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Publication number: 20090168186Abstract: An optical assembly for reducing the etendue of a diode laser light source having a plurality of laser light emitters. The optical assembly comprises a first optical device for collimating beams of light emitted from the emitters of the diode laser. A second optical device spatially shifts a portion of the collimated light beams emitted from the diode laser to thereby reduce gaps or dark space between the beams. A third optical device focuses all of the light beams onto a surface, such as a surface of a light modulation surface.Type: ApplicationFiled: September 8, 2008Publication date: July 2, 2009Inventors: Forrest Williams, Robert Christensen, Allen Tanner
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Patent number: 7420177Abstract: A system and method for generating a high-resolution image using a scanned-column projector is disclosed. The method includes the operation of generating a time-varying line image. A further operation includes collimating the time-varying line image in at least one plane. An additional operation involves scanning the collimated time-varying line image using a scan mirror. A further operation includes projecting the scanned collimated time-varying line image onto a surface. The scanned collimated time-varying line image is projected with at least one imaging element.Type: GrantFiled: January 20, 2006Date of Patent: September 2, 2008Assignee: Evans & Sutherland Computer CorporationInventors: Forrest Williams, Robert R. Christensen, Allen H. Tanner
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Publication number: 20070170365Abstract: A system and method for generating a high-resolution image using a scanned-column projector is disclosed. The method includes the operation of generating a time-varying line image. A further operation includes collimating the time-varying line image in at least one plane. An additional operation involves scanning the collimated time-varying line image using a scan mirror. A further operation includes projecting the scanned collimated time-varying line image onto a surface. The scanned collimated time-varying line image is projected with at least one imaging element.Type: ApplicationFiled: January 20, 2006Publication date: July 26, 2007Inventors: Forrest Williams, Robert Christensen, Allen Tanner
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Publication number: 20060221429Abstract: The invention provides a system and method for reducing laser speckle and interference patterns in a laser projector display when using a laser projector having a spatial light modulator (SLM) with a defined pixel rate. The method can include the operation of polarizing a laser output of a continuous wave laser such that the laser output is s-polarized with respect to a beam combiner. The s-polarized laser output can be divided into a first laser beam and a second laser beam. A phase of the second laser beam can be modulated with an amplitude sufficient to create a phase delay of approximately half a wavelength of the laser output and at a frequency at least twice that of the SLM's pixel rate.Type: ApplicationFiled: March 31, 2005Publication date: October 5, 2006Inventors: Robert Christensen, Forrest Williams, Allen Tanner
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Publication number: 20060177171Abstract: A tunable fiber optic component providing environmental isolation, thermal tuning, and mechanical tuning and a method of tuning a fiber optic component using application of substantially simultaneous varying of temperature and mechanical strain is disclosed. A method of using a tunable fiber optic component, for example, a distributed feedback fiber laser, to compensate variations in an optical system, and a method of making a tunable fiber optic component are also disclosed.Type: ApplicationFiled: March 23, 2006Publication date: August 10, 2006Inventors: David Marceau, Dennis Elkins, Forrest Williams, Allen Tanner
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Publication number: 20060177170Abstract: A tunable fiber optic component providing environmental isolation, thermal tuning, and mechanical tuning and a method of tuning a fiber optic component using application of substantially simultaneous varying of temperature and mechanical strain is disclosed. A method of using a tunable fiber optic component, for example, a distributed feedback fiber laser, to compensate variations in an optical system, and a method of making a tunable fiber optic component are also disclosed.Type: ApplicationFiled: March 23, 2006Publication date: August 10, 2006Inventors: David Marceau, Dennis Elkins, Forrest Williams, Allen Tanner
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Publication number: 20060165339Abstract: A tunable fiber optic component providing environmental isolation, thermal tuning, and mechanical tuning and a method of tuning a fiber optic component using application of substantially simultaneous varying of temperature and mechanical strain is disclosed. A method of using a tunable fiber optic component, for example, a distributed feedback fiber laser, to compensate variations in an optical system, and a method of making a tunable fiber optic component are also disclosed.Type: ApplicationFiled: March 23, 2006Publication date: July 27, 2006Inventors: David Marceau, Dennis Elkins, Forrest Williams, Allen Tanner
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Publication number: 20060165338Abstract: A tunable fiber optic component providing environmental isolation, thermal tuning, and mechanical tuning and a method of tuning a fiber optic component using application of substantially simultaneous varying of temperature and mechanical strain is disclosed. A method of using a tunable fiber optic component, for example, a distributed feedback fiber laser, to compensate variations in an optical system, and a method of making a tunable fiber optic component are also disclosed.Type: ApplicationFiled: March 23, 2006Publication date: July 27, 2006Inventors: David Marceau, Dennis Elkins, Forrest Williams, Allen Tanner
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Publication number: 20060047330Abstract: Systems and methods for dynamically distributing power of a light beam for use in administering light therapy. A laser light beam having a maximum peak power is selectively diffused to distribute the maximum peak power. In at least some implementations, the diffused laser light beam is attenuated across the diffused beam. Having undergone processes of diffusion and attenuation, the laser light beam is then safely used to administer light therapy on a patient. In further implementations, the diffusion includes a defocused diffusion and/or includes a distribution of power rather than an attenuation of power.Type: ApplicationFiled: September 2, 2004Publication date: March 2, 2006Inventors: Gary Whatcott, Forrest Williams
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Publication number: 20050242185Abstract: A shuttering system for a scanning projector having a laser source, a grating light valve light modulator, and a light steering scanner includes a feedback system interconnecting the scanner with the light modulator. The feedback system is configured to deactivate the light modulator in case of scanner malfunction, so as to redirect laser light away from the scanner.Type: ApplicationFiled: March 24, 2005Publication date: November 3, 2005Inventors: Bret Winkler, Forrest Williams
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Publication number: 20020181873Abstract: A multimode optical coupler comprising a first optical fiber having a polished face on its side, and a second optical fiber having an end which is polished at an angle. The angled polished end of the second optical fiber is disposed in mating alignment with the polished face of the first optical fiber, and light energy propagating through the second fiber can pass into the first fiber. A series of such couplers may be interconnected in a network so as to combine the energy of many light sources for a desired power level in a single optical fiber.Type: ApplicationFiled: May 30, 2001Publication date: December 5, 2002Inventors: Jesse Anderegg, Forrest Williams, Yuri Grapov, Allen Tanner
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Patent number: 6126567Abstract: An automatic transmissions for an automotive vehicle includes a variator of the traction drive type, the variator including an input disc, an output disc, and rollers driveably engaged with the discs and adapted to vary continuously the ratio of the speeds of the output disc and input disc. Each of two planetary gearsets includes a carrier, a sun gear and a ring gear and a set of planet pinions meshing with the respective sun gear and ring gear. Angular variation of the rollers causes the variator to drive the ring gear at a variable speed relative to engine speed and the carrier to rotate in accordance with the speeds of the sun gear and ring gear.Type: GrantFiled: April 6, 1998Date of Patent: October 3, 2000Assignee: Ford Global Technologies, Inc.Inventors: Forrest William Hoge, Daniel Warren McCarrick, Rudolf Beim
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Patent number: 6099431Abstract: A method for operating an automatic traction drive transmission for use in motor vehicles having a first gear unit for operation in an infinitely variable mode and a second gear unit for operation in a continuously variable mode includes connecting the first gear unit to the transmission output, disconnecting the second gear unit from the first gear unit, and changing the speed ratio of the variator to produce low forward and low reverse ranges, or connecting the second gear unit to the first gear unit, disconnecting the first gear unit from the transmission output, and changing the speed ratio of the variator to produce high mode low and high forward ranges.Type: GrantFiled: May 6, 1999Date of Patent: August 8, 2000Assignee: Ford Global Technologies, Inc.Inventors: Forrest William Hoge, Daniel Warren McCarrick
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Patent number: 6059685Abstract: An automatic transmission for motor vehicles includes a traction drive variator having two sets of input discs, a set of output discs, a gearset, a compound planetary gearset, and two clutches for connecting and releasing various elements of the gearsets. The carrier of the gearsets is connected continually to both sets of variator input discs, and a sun gear is continually connected to the variator output discs. The ring gear of the compound planetary gearset is continually fixed against rotation. The transmission operates in geared neutral condition, reverse and forward low ranges, and high and low forward ranges.Type: GrantFiled: May 6, 1999Date of Patent: May 9, 2000Assignee: Ford Global Technologies, Inc.Inventors: Forrest William Hoge, Daniel Warren McCarrick
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Patent number: 5967931Abstract: An automatic transmissions for an automotive vehicle includes a variator of the traction drive type, the variator including two input discs, two output discs, and rollers driveably engaged with the discs and adapted to vary continuously the ratio of the speeds of the output discs and input discs. Each of two planetary gearsets includes a carrier driven by an engine and driveably connected to an input disc, a sun gear driven by an output disc, and a sun gear connected to one of two driveshafts, which drive the front and rear wheels, respectively, of a motor vehicle. Independent angular variation of the rollers causes the variator to drive the forward drive sun gear and rear drive sun gear at different, variable speeds.Type: GrantFiled: February 2, 1998Date of Patent: October 19, 1999Assignee: Ford Global Technologies, Inc.Inventors: Forrest William Hoge, Robert Clayton Roethler
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Patent number: 5921882Abstract: An automatic transmission for an automotive vehicle includes two variator of the traction drive type, each variator including an input disc, an output disc, and rollers driveably engaged with the discs and adapted to vary continuously the ratio of the speeds of the output disc and input disc, the output disc of the first variator producing a predetermined speed in relation to the speed of an input shaft and driveably connected to a disc of the second variator. A planetary gear unit includes a carrier, a sun gear connected to mutually connected discs, a ring gear connected to the output disc of the second variator, and a set of planet pinions meshing with the respective sun gear and ring gear. Angular variation of the rollers causes the second variator to drive the ring gear at a variable speed relative to input shaft speed and the carrier to rotate in accordance with the speeds of the sun gear and ring gear.Type: GrantFiled: April 6, 1998Date of Patent: July 13, 1999Assignee: Ford Global Technologies, Inc.Inventors: Forrest William Hoge, Daniel Warren McCarrick, Rudolf Beim
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Patent number: 5821511Abstract: A vending machine/display unit (10) includes a plurality of articles (14) arranged on a plurality of dispensing paths (20 or 22). A counting mechanism is associated with each dispensing path, and includes an encoder bar (32) positioned adjacent the dispensing path, and encoder head (34) positioned to incrementally advance along the dispensing path. The encoder head (34) includes a plurality of contact members (42a-d) which interact with a plurality of active site contact members (40) disposed on the encoder bar (32) in a pattern which uniquely identifies each incremental position in the dispensing path. The inventory of articles (14) remaining in a dispensing path or the accounting of articles (14) dispensed from the dispensing path is determined from the relative position of the encoder head (34) to the encoder bar (32), and this position is detected from the active contact site points (40) on the electrical information lines (36) on the encoder bar (32).Type: GrantFiled: March 13, 1997Date of Patent: October 13, 1998Inventors: Forrest Williams, Nader Hajian