Patents by Inventor Gary A. Lang
Gary A. Lang 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: 9020018Abstract: A calibration system may be provided for calibrating wireless communications circuitry in an electronic device during manufacturing. The calibration system may include data acquisition equipment and calibration computing equipment for receiving and processing test and calibration signals from wireless communications circuitry to be calibrated. During testing and calibration operations, a device may be provided with initial pre-distortion calibration values. The initial pre-distortion calibration values may be generated at least in part based on calibration operations performed for other wireless electronic devices. The device may generate a test signal using the initial pre-distortion calibration values. The calibration system may determine whether the test signal is within an acceptable range of a known reference signal.Type: GrantFiled: June 14, 2012Date of Patent: April 28, 2015Assignee: Apple Inc.Inventors: Gary Lang Do, David A. Donovan, Gurusubrahmaniyan Radhakrishnan
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Patent number: 8798198Abstract: A calibration system may be provided for calibrating wireless communications circuitry in an electronic device during manufacturing. The calibration system may include data acquisition equipment for receiving an amplitude-modulated calibration signal from the electronic device. The calibration system may include calibration computing equipment for extracting pre-distortion coefficients from the amplitude-modulated calibration signal. The calibration computing equipment may be configured to detect a bulk phase drift in the amplitude-modulated calibration signal. The calibration computing equipment may be configured to remove the bulk phase drift from the amplitude-modulated calibration signal. The wireless communications circuitry may include a power amplifier that distorts a signal generated by the wireless communications circuitry. The wireless communications circuitry may include a pre-distortion compensator for countering the distortion.Type: GrantFiled: August 31, 2011Date of Patent: August 5, 2014Assignee: Apple Inc.Inventor: Gary Lang Do
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Publication number: 20130336376Abstract: A calibration system may be provided for calibrating wireless communications circuitry in an electronic device during manufacturing. The calibration system may include data acquisition equipment and calibration computing equipment for receiving and processing test and calibration signals from wireless communications circuitry to be calibrated. During testing and calibration operations, a device may be provided with initial pre-distortion calibration values. The initial pre-distortion calibration values may be generated at least in part based on calibration operations performed for other wireless electronic devices. The device may generate a test signal using the initial pre-distortion calibration values. The calibration system may determine whether the test signal is within an acceptable range of a known reference signal.Type: ApplicationFiled: June 14, 2012Publication date: December 19, 2013Inventors: Gary Lang Do, David A. Donovan, Gurusubrahmaniyan Radhakrishnan
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Publication number: 20130052960Abstract: A calibration system may be provided for calibrating wireless communications circuitry in an electronic device during manufacturing. The calibration system may include data acquisition equipment for receiving an amplitude-modulated calibration signal from the electronic device. The calibration system may include calibration computing equipment for extracting pre-distortion coefficients from the amplitude-modulated calibration signal. The calibration computing equipment may be configured to detect a bulk phase drift in the amplitude-modulated calibration signal. The calibration computing equipment may be configured to remove the bulk phase drift from the amplitude-modulated calibration signal. The wireless communications circuitry may include a power amplifier that distorts a signal generated by the wireless communications circuitry. The wireless communications circuitry may include a pre-distortion compensator for countering the distortion.Type: ApplicationFiled: August 31, 2011Publication date: February 28, 2013Inventor: Gary Lang Do
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Publication number: 20070164043Abstract: A compressible gasket is mounted on retainers in the space between the surfaces of first and second structures such as an apparatus and a door. The gasket can move axially on the retainers and can pivot transversely on the retainers, thereby affording access to the spaces around and behind the gasket for easy cleaning and inspection.Type: ApplicationFiled: December 29, 2005Publication date: July 19, 2007Inventors: Gary Lang, Steven McCarty
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Publication number: 20070026781Abstract: Animals such as poultry are stunned while still caged and on a vehicle or stationary platform prior to processing the animal by isolating the atmosphere surrounding the animal, adjusting the composition of the isolated atmosphere by introducing a gaseous mixture that brings the animal to the desired state, and evacuating or exhausting the gaseous mixture.Type: ApplicationFiled: August 23, 2006Publication date: February 1, 2007Inventors: Gary Lang, Narsimha Nayini
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Publication number: 20070026779Abstract: Poultry is stunned while still caged and on the vehicle that carries it to a processing plant, by exposing it to an atmosphere of stunning gas applied while the vehicle is inside an enclosure.Type: ApplicationFiled: July 8, 2005Publication date: February 1, 2007Inventor: Gary Lang
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Publication number: 20070026780Abstract: Animals such as poultry are stunned while still caged and on the vehicle that carries them to a processing plant, by exposing the animal to an atmosphere of gradually lessening oxygen content.Type: ApplicationFiled: September 21, 2005Publication date: February 1, 2007Inventor: Gary Lang
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Publication number: 20060248913Abstract: Apparatus and methods for cooling or heating product by passing it through a tunnel in which gaseous heat transfer medium such as cryogen vapor or steam is impinged toward the product and then drawn away from the product in a manner that minimizes intersection with impinging medium.Type: ApplicationFiled: May 6, 2005Publication date: November 9, 2006Inventors: Theodore Gasteyer, Gary Lang, John Girard
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Patent number: 5974829Abstract: The method of the invention recovers CO.sub.2 from an inlet cold feed stream containing a low concentration thereof, and includes the following steps. An inlet feed stream is passed through a heat exchanger, against a compressed flow of the inlet feed stream, to cool the compressed flow. The compressed flow is further cooled and compressed to a high pressure, fed to a distillation column and there converted into a vent gas including CO.sub.2 and a high purity bottom liquid CO.sub.2. A first portion of the bottom liquid CO.sub.2 is expanded to achieve a first cooled liquid CO.sub.2 refrigerant flow, which is then vaporized against the vent gas to recover condensed CO.sub.2 therefrom. The condensed CO.sub.2 is then reintroduced into the distillation column. A second portion of the bottom liquid CO.sub.2 is expanded to achieve a second cooled liquid CO.sub.2 refrigerant flow, which is then used to subcool the CO.sub.2 product output.Type: GrantFiled: June 8, 1998Date of Patent: November 2, 1999Assignee: Praxair Technology, Inc.Inventors: Richard A. Novak, Gary Lang, Brad Hagstrom, Enrique Lozano
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Patent number: 5892229Abstract: The method and apparatus for measuring a content of vaporous hydrogen peroxide in a gaseous medium within an enclosure includes a irradiating a portion of the gaseous medium with light, measuring an absorbance of light in a selected near-infrared wavelength range, and calculating the content of vaporous hydrogen peroxide from the measured absorbance of light.Type: GrantFiled: April 22, 1996Date of Patent: April 6, 1999Assignee: Rosemount Analytical Inc.Inventors: David Crozier, Gary A. Lang, Seetha Ananth
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Patent number: 5196169Abstract: The free fatty acid content of an edible oil is measured by a system including a supply of a carrier solution containing an organic solvent for dissolving the oil and a color indicating reagent and an oil sample supply connected to a flow-through colorimetric detector via a sample injection valve. The sample injection valve is movable between a load position wherein a sample stream of the oil is routed to a sample waste collector via a sample loop and a stream of the carrier solution passes through the detector via a carrier solution conduit and a measure position wherein a slug of the oil in the sample loop is introduced into the carrier solution conduit and mixed with the carrier solution prior to passing through the detector. The free fatty acid in the oil reacts with the color indicating reagent in the carrier solution to produce a color of an intensity indicative of the free fatty acid content which is measured by the detector.Type: GrantFiled: October 2, 1991Date of Patent: March 23, 1993Assignee: Eppendorf North America, Inc.Inventors: Karl G. Schick, Paul M. Karges, Gary A. Lang, David A. Uhen
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Patent number: 5139956Abstract: The peroxide content of a non-aqueous medium is measured by a system including separate supplies for two carrier solutions, a first one containing an acid for acidifying the sample and the second containing an iodide compound for reacting with the peroxide(s) in the sample and producing a free iodine ion, such as I.sub.3.sup.-, and a flow-through detector, such as a colorimetric device. The sample and first carrier solution streams are controlled by a sample injection valve which is movable between a load position wherein the sample stream is routed to a sample waste collector via a sample loop and the first carrier solution stream passes through a first carrier solution conduit and is combined with a stream the second carrier solution prior to passing through the detector and a measure position wherein a slug of the sample is introduced into the first carrier solution conduit, mixed with the first carrier solution and combined with the second carrier solution prior to passing through the detector.Type: GrantFiled: March 4, 1991Date of Patent: August 18, 1992Assignee: FIAtron-Eppendorf, Inc.Inventors: Karl G. Schick, Paul M. Karges, Gary A. Lang, David A. Uhen