Patents by Inventor Bruce C. Rothaar
Bruce C. Rothaar 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: 10469113Abstract: Systems and methods are disclosed which provide wireless communication systems implementing subsystems adapted for flexible deployment configurations and to resist the introduction of interference. Preferred embodiments of the present invention provide a wireless communication system configuration in which an ODU subsystem is coupled to an IDU subsystem using a fiber optic link. According to a preferred embodiment of the present invention, an ODU subsystem is adapted to provide conversion between digital and analog to thereby facilitate the use of a digital link between the ODU subsystem and a corresponding IDU subsystem. Embodiments of the present invention utilize a plurality of ODU subsystems configured according to the present invention to provide wireless communication coverage of a service area, such as to provide a wireless application termination system (WATS) hub for use in providing wireless communication links with respect to a plurality of subscriber units.Type: GrantFiled: June 9, 2014Date of Patent: November 5, 2019Assignee: NETGEAR, Inc.Inventors: David Prager, Bruce C. Rothaar, Heinz Lycklama A'nyeholt, Dave Randall
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Publication number: 20180368128Abstract: A wireless RF data transmission system has at least one base station transmitting control information on a control channel and high speed data on at least one data channel. At least one subscriber station receives the control information and data channels, adjusting a modulation and/or coding of reception of the data in response to the control information. Preferably, the control information is transmitted using a more robust modulation, such as QPSK, than used to transmit the data, which is preferably transmitted using either 16, 64 or 256 QAM. Additionally, timing or header information for the data may be included on the control channel.Type: ApplicationFiled: August 28, 2018Publication date: December 20, 2018Inventors: Mark D. Reudink, Lee David Dunbar, Bruce C. Rothaar
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Patent number: 10070423Abstract: A wireless RF data transmission system has at least one base station transmitting control information on a control channel and high speed data on at least one data channel. At least one subscriber station receives the control information and data channels, adjusting a modulation and/or coding of reception of the data in response to the control information. Preferably, the control information is transmitted using a more robust modulation, such as QPSK, than used to transmit the data, which is preferably transmitted using either 16, 64 or 256 QAM. Additionally, timing or header information for the date may be included on the control channel.Type: GrantFiled: July 7, 2017Date of Patent: September 4, 2018Assignee: NETGEAR, Inc.Inventors: Mark D. Reudink, Lee David Dunbar, Bruce C. Rothaar
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Publication number: 20170311305Abstract: A wireless RF data transmission system has at least one base station transmitting control information on a control channel and high speed data on at least one data channel. At least one subscriber station receives the control information and data channels, adjusting a modulation and/or coding of reception of the data in response to the control information. Preferably, the control information is transmitted using a more robust modulation, such as QPSK, than used to transmit the data, which is preferably transmitted using either 16, 64 or 256 QAM. Additionally, timing or header information for the date may be included on the control channel.Type: ApplicationFiled: July 7, 2017Publication date: October 26, 2017Inventors: Mark D. Reudink, Lee David Dunbar, Bruce C. Rothaar
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Patent number: 9730192Abstract: A wireless RF data transmission system has at least one base station transmitting control information on a control channel and high speed data on at least one data channel. At least one subscriber station receives the control information and data channels, adjusting a modulation and/or coding of reception of the data in response to the control information. Preferably, the control information is transmitted using a more robust modulation, such as QPSK, than used to transmit the data, which is preferably transmitted using either 16, 64 or 256 QAM. Additionally, timing or header information for the data may be included on the control channel.Type: GrantFiled: July 18, 2013Date of Patent: August 8, 2017Assignee: NETGEAR, Inc.Inventors: Mark D. Reudink, Lee David Dunbar, Bruce C. Rothaar
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Publication number: 20150171988Abstract: Systems and methods are disclosed which provide wireless communication systems implementing subsystems adapted for flexible deployment configurations and to resist the introduction of interference. Preferred embodiments of the present invention provide a wireless communication system configuration in which an ODU subsystem is coupled to an IDU subsystem using a fiber optic link. According to a preferred embodiment of the present invention, an ODU subsystem is adapted to provide conversion between digital and analog to thereby facilitate the use of a digital link between the ODU subsystem and a corresponding IDU subsystem. Embodiments of the present invention utilize a plurality of ODU subsystems configured according to the present invention to provide wireless communication coverage of a service area, such as to provide a wireless application termination system (WATS) hub for use in providing wireless communication links with respect to a plurality of subscriber units.Type: ApplicationFiled: March 3, 2015Publication date: June 18, 2015Applicants: Adaptix, Inc., NETGEAR, Inc.Inventors: David Prager, Bruce C. Rothaar, Heinz Lycklama A'nyeholt, Dave Randall
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Patent number: 9014200Abstract: Systems and methods are disclosed which provide wireless communication systems implementing subsystems adapted for flexible deployment configurations and to resist the introduction of interference. Preferred embodiments of the present invention provide a wireless communication system configuration in which an ODU subsystem is coupled to an IDU subsystem using a fiber optic link. According to a preferred embodiment of the present invention, an ODU subsystem is adapted to provide conversion between digital and analog to thereby facilitate the use of a digital link between the ODU subsystem and a corresponding IDU subsystem. Embodiments of the present invention utilize a plurality of ODU subsystems configured according to the present invention to provide wireless communication coverage of a service area, such as to provide a wireless application termination system (WATS) hub for use in providing wireless communication links with respect to a plurality of subscriber units.Type: GrantFiled: November 28, 2012Date of Patent: April 21, 2015Assignee: Netgear, Inc.Inventors: David Prager, Bruce C. Rothaar, Heinz Lycklama A'nyeholt, Dave Randall
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Patent number: 8861058Abstract: A scanning beam projection system includes a scanning mirror having a fast-scan axis and a slow-scan axis. Movement on the fast-scan axis is controlled by a fast-scan scanning mirror control system. The control system receives position information describing angular displacement of the mirror. A fast-scan drive signal is generated that causes the scanning mirror to oscillate at a resonant frequency with a varying amplitude.Type: GrantFiled: November 14, 2011Date of Patent: October 14, 2014Assignee: Microvision, Inc.Inventors: Bruce C. Rothaar, Joel Sandgathe
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Publication number: 20140286380Abstract: Systems and methods are disclosed which provide wireless communication systems implementing subsystems adapted for flexible deployment configurations and to resist the introduction of interference. Preferred embodiments of the present invention provide a wireless communication system configuration in which an ODU subsystem is coupled to an IDU subsystem using a fiber optic link. According to a preferred embodiment of the present invention, an ODU subsystem is adapted to provide conversion between digital and analog to thereby facilitate the use of a digital link between the ODU subsystem and a corresponding IDU subsystem. Embodiments of the present invention utilize a plurality of ODU subsystems configured according to the present invention to provide wireless communication coverage of a service area, such as to provide a wireless application termination system (WATS) hub for use in providing wireless communication links with respect to a plurality of subscriber units.Type: ApplicationFiled: June 9, 2014Publication date: September 25, 2014Applicant: NETGEAR, Inc.Inventors: David Prager, Bruce C. Rothaar, Heinz Lycklama A'nyeholt, Dave Randall
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Patent number: 8755395Abstract: Systems and methods are disclosed which provide wireless communication systems implementing subsystems adapted for flexible deployment configurations and to resist the introduction of interference. Preferred embodiments of the present invention provide a wireless communication system configuration in which an ODU subsystem is coupled to an IDU subsystem using a fiber optic link. According to a preferred embodiment of the present invention, an ODU subsystem is adapted to provide conversion between digital and analog to thereby facilitate the use of a digital link between the ODU subsystem and a corresponding IDU subsystem. Embodiments of the present invention utilize a plurality of ODU subsystems configured according to the present invention to provide wireless communication coverage of a service area, such as to provide a wireless application termination system (WATS) hub for use in providing wireless communication links with respect to a plurality of subscriber units.Type: GrantFiled: July 6, 2010Date of Patent: June 17, 2014Assignee: NETGEAR, IncInventors: David Prager, Bruce C. Rothaar, Heinz Lycklama A'nyeholt, Dave Randall
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Patent number: 8717342Abstract: A scanning projector includes an optical filter. The optical filter exhibits a variable attenuation as a function of position. The scanning projector may scan sinusoidally in at least one dimension. The variable attenuation of the optical filter compensates for brightness variations due to sinusoidal scanning.Type: GrantFiled: August 31, 2011Date of Patent: May 6, 2014Assignee: Microvision, Inc.Inventor: Bruce C. Rothaar
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Patent number: 8634024Abstract: A scanning projector includes a mirror that scans in two dimensions, at least one of which is sinusoidal. A digital phase lock loop locks to the sinusoidal movement of the mirror. A free-running pixel clock is provided. An interpolation component interpolates pixel intensity data from adjacent pixels based on the position of the mirror when a pixel clock arrives.Type: GrantFiled: June 15, 2009Date of Patent: January 21, 2014Assignee: Microvision, Inc.Inventors: Bruce C. Rothaar, Mark Champion
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Patent number: 8605764Abstract: A projection apparatus includes at least one laser diode and a laser diode junction temperature estimator to estimate the junction temperature of the at least one laser diode. Laser diode current drive values are modified in response to the estimated laser junction temperature. The modification of laser diode current drive values may occur as frequently as once per pixel.Type: GrantFiled: July 9, 2012Date of Patent: December 10, 2013Assignee: Microvision, Inc.Inventors: Bruce C. Rothaar, Dale Eugene Zimmerman, Joel Sandgathe
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Patent number: 8511838Abstract: A scanning projector includes a MEMS device with a scanning mirror that sweeps a light beam in two dimensions. A laser limit comparison circuit determines a metric from measured peak scan angles and measured light output. The metric is compared to a threshold and a light source is shut down when the metric exceeds the threshold.Type: GrantFiled: June 29, 2011Date of Patent: August 20, 2013Assignee: Microvision, Inc.Inventor: Bruce C. Rothaar
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Patent number: 8494063Abstract: A wireless RF data transmission system has at least one base station transmitting control information on a control channel and high speed data on at least one data channel. At least one subscriber station receives the control information and data channels, adjusting a modulation and/or coding of reception of the data in response to the control information. Preferably, the control information is transmitted using a more robust modulation, such as QPSK, than used to transmit the data, which is preferably transmitted using either 16, 64 or 256 QAM. Additionally, timing or header information for the data may be included on the control channel.Type: GrantFiled: September 25, 2001Date of Patent: July 23, 2013Assignee: NETGEAR, Inc.Inventors: Mark D. Reudink, Lee Dunbar, Bruce C. Rothaar
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Publication number: 20130120819Abstract: A scanning beam projection system includes a scanning mirror having a fast-scan axis and a slow-scan axis. Movement on the fast-scan axis is controlled by a fast-scan scanning mirror control system. The control system receives position information describing angular displacement of the mirror. A fast-scan drive signal is generated that causes the scanning mirror to oscillate at a resonant frequency with a varying amplitude.Type: ApplicationFiled: November 14, 2011Publication date: May 16, 2013Applicant: Microvision, Inc.Inventors: Bruce C. Rothaar, Joel Sandgathe
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Publication number: 20130089105Abstract: Systems and methods are disclosed which provide wireless communication systems implementing subsystems adapted for flexible deployment configurations and to resist the introduction of interference. Preferred embodiments of the present invention provide a wireless communication system configuration in which an ODU subsystem is coupled to an IDU subsystem using a fiber optic link. According to a preferred embodiment of the present invention, an ODU subsystem is adapted to provide conversion between digital and analog to thereby facilitate the use of a digital link between the ODU subsystem and a corresponding IDU subsystem. Embodiments of the present invention utilize a plurality of ODU subsystems configured according to the present invention to provide wireless communication coverage of a service area, such as to provide a wireless application termination system (WATS) hub for use in providing wireless communication links with respect to a plurality of subscriber units.Type: ApplicationFiled: November 28, 2012Publication date: April 11, 2013Inventors: David Prager, Bruce C. Rothaar, Heinz Lycklama A'nyeholt, Dave Randall
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Publication number: 20130050156Abstract: A scanning projector includes an optical filter. The optical filter exhibits a variable attenuation as a function of position. The scanning projector may scan sinusoidally in at least one dimension. The variable attenuation of the optical filter compensates for brightness variations due to sinusoidal scanning.Type: ApplicationFiled: August 31, 2011Publication date: February 28, 2013Applicant: MICROVISION, INC.Inventor: Bruce C. Rothaar
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Publication number: 20130003026Abstract: A scanning projector includes a MEMS device with a scanning mirror that sweeps a light beam in two dimensions. A laser limit comparison circuit determines a metric from measured peak scan angles and measured light output. The metric is compared to a threshold and a light source is shut down when the metric exceeds the threshold.Type: ApplicationFiled: June 29, 2011Publication date: January 3, 2013Applicant: MICROVISION, INC.Inventor: Bruce C. Rothaar
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Patent number: 8345698Abstract: Systems and methods are disclosed which provide wireless communication systems implementing subsystems adapted for flexible deployment configurations and to resist the introduction of interference. Preferred embodiments of the present invention provide a wireless communication system configuration in which an ODU subsystem is coupled to an IDU subsystem using a fiber optic link. According to a preferred embodiment of the present invention, an ODU subsystem is adapted to provide conversion between digital and analog to thereby facilitate the use of a digital link between the ODU subsystem and a corresponding IDU subsystem. Embodiments of the present invention utilize a plurality of ODU subsystems configured according to the present invention to provide wireless communication coverage of a service area, such as to provide a wireless application termination system (WATS) hub for use in providing wireless communication links with respect to a plurality of subscriber units.Type: GrantFiled: December 12, 2006Date of Patent: January 1, 2013Assignee: NETGEAR, Inc.Inventors: David Prager, Bruce C. Rothaar, Heinz Lycklama A'nyeholt, Dave Randall