Patents by Inventor Christopher A. Snyder
Christopher A. Snyder 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: 7333057Abstract: A stacked patch antenna including a distributed reactive network proximity feed, preferably implemented in a microstrip metallization network, coupled to an active antenna patch element to feed the active antenna patch element to emit a field to parasitically stimulate a parasitic antenna patch element.Type: GrantFiled: July 31, 2004Date of Patent: February 19, 2008Assignee: Harris CorporationInventor: Christopher A. Snyder
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Publication number: 20070210977Abstract: An antenna apparatus, which can increase capacity in a cellular communication system or Wireless Local Area Network (WLAN), such as an 802.11 network, operates in conjunction with a mobile subscriber unit or client station. At least one antenna element is active and located within multiple passive antenna elements. The passive antenna elements are coupled to selectable impedance components for phase control of re-radiated RF signals. Various techniques for determining the phase of each antenna element are supported to enable the antenna apparatus to direct an antenna beam pattern toward a base station or access point with maximum gain, and, consequently, maximum signal-to-noise ratio. By directionally receiving and transmitting signals, multipath fading is greatly reduced as well as intercell interference.Type: ApplicationFiled: May 8, 2007Publication date: September 13, 2007Applicant: IPR Licensing, Inc.Inventors: Griffin Gothard, Alton Keel, Christopher Snyder, Bing Chiang, Joe Richeson, Douglas Wood, James Proctor, Kenneth Gainey
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Publication number: 20070152892Abstract: A wireless mobile handset includes an antenna array. The antenna array includes a passive element disposed on a first portion of a dielectric substrate and an active element disposed on a second portion of the dielectric substrate. The passive element is configured to operate in a reflective mode to produce a bi-directional radiation pattern.Type: ApplicationFiled: February 15, 2007Publication date: July 5, 2007Applicant: IPR Licensing, Inc.Inventors: Bing Chiang, Christopher Snyder, Griffin Gothard, David Jorgenson
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Publication number: 20070152893Abstract: A wireless handset including an antenna array. The antenna array includes an active antenna element and two passive antenna elements. The active and passive antenna elements are arranged to form a triangle with a vertex. The vertex includes a vertex angle and the active antenna element is disposed at the vertex. The vertex angle is between 90 degrees and 180 degrees.Type: ApplicationFiled: February 13, 2007Publication date: July 5, 2007Applicant: IPR Licensing, Inc.Inventors: Bing Chiang, Griffin Gothard, Christopher Snyder, William Palmer, Michael Lynch, Thomas Gorsuch, Kenneth Gainey, James Proctor
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Publication number: 20070117514Abstract: A wireless communication node, such as a repeater, including a frequency translating repeater, a physical layer (PHY) repeater, time divisional duplex repeater (TDD) and the like, is configured with a pair of directional patch antennae and an omni-directional antenna. The patch antennae can be selected depending on the orientation of the repeater package to communicate with a station such as an access point or a base station. The omni-directional antenna can be directed toward another station such as a client. The patch antennae and the omni-directional antenna can be orthogonally polarized to increase isolation and reduce electromagnetic coupling. Multiple antennae can be used in multiple-input-multiple-output (MIMO) configurations.Type: ApplicationFiled: November 21, 2006Publication date: May 24, 2007Applicant: WIDEFI, INC.Inventors: Kenneth Gainey, James Proctor, Christopher Snyder, James Otto
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Patent number: 7215297Abstract: An antenna apparatus, which can increase capacity in a cellular communication system or Wireless Local Area Network (WLAN), such as an 802.11 network, operates in conjunction with a mobile subscriber unit or client station. At least one antenna element is active and located within multiple passive antenna elements. The passive antenna elements are coupled to selectable impedance components for phase control of re-radiated RF signals. Various techniques for determining the phase of each antenna element are supported to enable the antenna apparatus to direct an antenna beam pattern toward a base station or access point with maximum gain, and, consequently, maximum signal-to-noise ratio. By directionally receiving and transmitting signals, multipath fading is greatly reduced as well as intercell interference.Type: GrantFiled: January 17, 2006Date of Patent: May 8, 2007Assignee: IPR Licensing, Inc.Inventors: Griffin K. Gothard, Alton S. Keel, Jr., Christopher A. Snyder, Bing Chiang, Joe T. Richeson, Douglas H. Wood, James A. Proctor, Jr., Kenneth M. Gainey
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Patent number: 7190313Abstract: A mobile communication handset includes at least one passive antenna element and an active antenna element adjacent to the passive antenna elements protruding from a housing. The active element is coupled to electronic radio communication circuits and the passive antenna elements are coupled to circuit elements that affect the directivity of communication signals coupled to the antenna elements.Type: GrantFiled: March 14, 2005Date of Patent: March 13, 2007Assignee: IPR Licensing, Inc.Inventors: Bing Chiang, Christopher A. Snyder, Griffin K. Gothard, David C. Jorgenson
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Patent number: 7176844Abstract: An antenna array that uses at least two passive antennas and one active antenna disposed above a ground plane, but electrically isolated from the ground plane, and a respective resonant strip positioned beneath each passive antenna. The passive antenna elements are positioned about the active element, and each of the at least two passive antenna elements is individually set to a reflective or a transmissive mode to change the characteristics of an input/output beam pattern of the antenna apparatus.Type: GrantFiled: April 11, 2005Date of Patent: February 13, 2007Assignee: IPR Licensing, Inc.Inventors: Bing Chiang, Griffin K. Gothard, Christopher A. Snyder, William R. Palmer, Michael J. Lynch, Thomas E. Gorsuch, Kenneth M. Gainey, James A. Proctor, Jr.
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Publication number: 20060262026Abstract: An antenna configuration includes two closely spaced antennas each positioned so as to be orthogonally polarized with respect to the other. The antenna configuration increases antenna isolation and reduces electromagnetic coupling between donor side antenna and repeat side antenna. The antennas include printed dipoles connected to respective transceivers through respective baluns to balance the non-symmetrical portions of the antenna feed paths to reduce unwanted radiation therein. Printed features such as chokes and non-symmetrical and non-parallel structures are preferably included in the ground plane of a multi-layer circuit board to reduce or eliminate circulating ground currents.Type: ApplicationFiled: May 18, 2006Publication date: November 23, 2006Applicant: WIDEFI, INC.Inventors: Kenneth Gainey, Christopher Snyder, James Proctor
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Publication number: 20060141952Abstract: The present invention relates generally to communications, and more specifically to a method and apparatus of modulating baseband and RF (radio frequency) signals. A modulator topology is disclosed in which an input signal x(t) is up-converted to an output signal y(t), either by mixing it with two mixing signals ?1 and ?2 (“pseudo-direct conversion” mode), or by mixing it with only one mixing signal ?2 (“direct-conversion” mode). In pseudo-direct modulation mode, the ?1 and ?2 mixing signals emulate a local oscillator signal; the product ?1*?2 has significant power at the frequency of a local oscillator signal being emulated, but neither ?1 nor ?2 have significant power at the frequency of the input signal x(t), the LO signal being emulated, or the output signal ?1 ?2 x(t).Type: ApplicationFiled: January 6, 2004Publication date: June 29, 2006Applicant: SiRiFIC Wireless CorporationInventors: William Kung, Christopher Snyder
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Publication number: 20060125709Abstract: An antenna apparatus, which can increase capacity in a cellular communication system or Wireless Local Area Network (WLAN), such as an 802.11 network, operates in conjunction with a mobile subscriber unit or client station. At least one antenna element is active and located within multiple passive antenna elements. The passive antenna elements are coupled to selectable impedance components for phase control of re-radiated RF signals. Various techniques for determining the phase of each antenna element are supported to enable the antenna apparatus to direct an antenna beam pattern toward a base station or access point with maximum gain, and, consequently, maximum signal-to-noise ratio. By directionally receiving and transmitting signals, multipath fading is greatly reduced as well as intercell interference.Type: ApplicationFiled: January 17, 2006Publication date: June 15, 2006Inventors: Griffin Gothard, Alton Keel, Christopher Snyder, Bing Chiang, Joe Richeson, Douglas Wood, James Proctor, Kenneth Gainey
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Patent number: 7046202Abstract: An antenna array includes a dielectric substrate comprising an integral center hub including a pivotal center section therein, and a pivotal wings extending radially from the integral center hub. An active antenna element is on the pivotal center section of the integral center hub, and passive antenna elements are on the pivotal wings. The active antenna element and the passive antenna elements are pivotal between a stored position and an operational position. The active antenna element and the passive antenna elements are substantially planar when in the stored position, and are substantially perpendicular to the integral center hub when in the operational position.Type: GrantFiled: July 30, 2004Date of Patent: May 16, 2006Assignee: IPR Licensing, Inc.Inventors: Bing Chiang, William R. Palmer, Griffin K. Gothard, Christopher A. Snyder
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Patent number: 7034761Abstract: An antenna includes a dielectric substrate, an ative antenna element carried by the dielectric substrate, and passive antenna elements carried by the dielectric substrate. The passive antenna elements are laterally adjacent the active antenna element. A respective impedance element is selectively connectable to each passive antenna element for antenna beam steering. Image elements are carried by the dielectric substrate, and a respective image element is connected to each impedance element and ground.Type: GrantFiled: July 12, 2004Date of Patent: April 25, 2006Assignee: IPR Licensing, Inc.Inventors: Bing Chiang, William R. Palmer, Griffin K. Gothard, Christopher A. Snyder
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Publication number: 20060022874Abstract: A stacked patch antenna including a distributed reactive network proximity feed, preferably implemented in a microstrip metallization network, coupled to an active antenna patch element to feed the active antenna patch element to emit a field to parasitically stimulate a parasitic antenna patch elementType: ApplicationFiled: July 31, 2004Publication date: February 2, 2006Inventor: Christopher Snyder
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Patent number: 6989797Abstract: An antenna apparatus, which can increase capacity in a cellular communication system or Wireless Local Area Network (WLAN), such as an 802.11 network, operates in conjunction with a mobile subscriber unit or client station. At least one antenna element is active and located within multiple passive antenna elements. The passive antenna elements are coupled to selectable impedance components for phase control of re-radiated RF signals. Various techniques for determining the phase of each antenna element are supported to enable the antenna apparatus to direct an antenna beam pattern toward a base station or access point with maximum gain, and, consequently, maximum signal-to-noise ratio. By directionally receiving and transmitting signals, multipath fading is greatly reduced as well as intercell interference.Type: GrantFiled: December 23, 2003Date of Patent: January 24, 2006Assignee: IPR Licensing, Inc.Inventors: Griffin K. Gothard, Alton S. Keel, Jr., Christopher A. Snyder, Bing Chiang, Joe T. Richeson, Douglas H. Wood, James A. Proctor, Jr., Kenneth M. Gainey
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Publication number: 20060010356Abstract: A event-driven portable data bus message logger includes an event message receiver for receiving an event message including an event field, an event message storage operably connected to the event message receiver for storing the event message, a data bus message receiver for receiving data bus messages including a data field and a data checksum, a comparator for comparing a current dat field of a current data bus message to the event field; and a trigger operably connected to the comparator for storing the current data bus message, a preceding data bus message, and a subsequent data bus message in a snapshot storage if the current data field is substantially similar to the event field.Type: ApplicationFiled: July 12, 2004Publication date: January 12, 2006Applicant: Mack Trucks, Inc.Inventors: Christopher Snyder, David Troupe
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Publication number: 20050190115Abstract: An antenna array that uses at least two passive antennas and one active antenna disposed above a ground plane, but electrically isolated from the ground plane, and a respective resonant strip positioned beneath each passive antenna. The passive antenna elements are positioned about the active element, and each of the at least two passive antenna elements is individually set to a reflective or a transmissive mode to change the characteristics of an input/output beam pattern of the antenna apparatus.Type: ApplicationFiled: April 11, 2005Publication date: September 1, 2005Applicant: IPR Licensing, Inc.Inventors: Bing Chiang, Griffin Gothard, Christopher Snyder, William Palmer, Michael Lynch, Thomas Gorsuch, Kenneth Gainey, James Proctor
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Publication number: 20050156797Abstract: A mobile communication handset includes at least one passive antenna element and an active antenna element adjacent to the passive antenna elements protruding from a housing. The active element is coupled to electronic radio communication circuits and the passive antenna elements are coupled to circuit elements that affect the directivity of communication signals coupled to the antenna elements.Type: ApplicationFiled: March 14, 2005Publication date: July 21, 2005Inventors: Bing Chiang, Christopher Snyder, Griffin Gothard, David Jorgenson
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Patent number: 6888504Abstract: An antenna array that uses at least two passive antennas and one active antenna disposed above a ground plane, but electrically isolated from the ground plane, and a respective resonant strip positioned beneath each passive antenna. The passive antenna elements are positioned about the active element, and each of the at least two passive antenna elements is individually set to a reflective or a transmissive mode to change the characteristics of an input/output beam pattern of the antenna apparatus.Type: GrantFiled: January 31, 2003Date of Patent: May 3, 2005Assignee: IPR Licensing, Inc.Inventors: Bing Chiang, Griffin K. Gothard, Christopher A. Snyder, William R. Palmer, Michael J. Lynch, Thomas E. Gorsuch, Kenneth M. Gainey, James A. Proctor, Jr.
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Patent number: 6876331Abstract: A mobile communication handset includes at least one passive antenna element and an active antenna element adjacent to the passive antenna elements protruding from a housing. The active element is coupled to electronic radio communication circuits and the passive antenna elements are coupled to circuit elements that affect the directivity of communication signals coupled to the antenna elements.Type: GrantFiled: March 14, 2003Date of Patent: April 5, 2005Assignee: IPR Licensing, Inc.Inventors: Bing Chiang, Christopher A. Snyder, Griffin K. Gothard, David C. Jorgenson