Patents by Inventor Mark R. Mathews
Mark R. Mathews 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: 11967937Abstract: A packaged semiconductor chip includes a semiconductor sub strate having formed thereon: radio-frequency (RF) input and output contact pads, DC contact pads, and first and second amplifier stages. An input of the first amplifier stage is coupled with the RF input contact pad. An input and an output of the second amplifier stage are respectively coupled to an output of the first amplifier stage and the RF output contact pad. The DC contact pads and the input of the first amplifier stages are connected via an input bias coupling path. The outputs of the amplifier stages are connected via an output bias coupling path. The chip further includes a lead frame having RF input and output pins electrically coupled to the RF input and output contact pads, and input bias pins electrically coupled to the DC contact pad.Type: GrantFiled: January 17, 2019Date of Patent: April 23, 2024Assignee: Viasat, Inc.Inventors: Shih Peng Sun, Kenneth V. Buer, Michael R. Lyons, Gary P. English, Qiang R. Chen, Ramanamurthy V. Darapu, Douglas J. Mathews, Mark S. Berkheimer, Brandon C. Drake
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Patent number: 9965983Abstract: A keyless entry system for an automobile includes a capacitive touch screen having at least one drive line and at least one sense line, the drive and sense lines defining a plurality of touch detection nodes. The touch screen is associated with an exterior surface of the automobile. A control circuit coupled to the touch screen is configured to detect proximity of a stimulus to the touch detection nodes. The control circuit provides a control output to a lock or latch controller when the control circuit determines that the stimulus has been placed proximate the touch detection nodes according to predetermined criteria.Type: GrantFiled: June 9, 2015Date of Patent: May 8, 2018Assignee: METHODE ELECTRONICS, INC.Inventor: Mark R. Mathews
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Patent number: 9306561Abstract: A touch switch apparatus emulating a mechanical switch includes a field effect sensor and an electric field stimulator mechanically associated with the field effect sensor. A field generation signal applied to the field effect sensor causes an electric field to be generated thereabout. The electric field stimulator can be moved between first and second positions with respect to the field effect sensor. When moved into proximity with the field effect sensor, the electric field stimulator disturbs the electric field. A detection circuit coupled to the field effect sensor detects and responds to the disturbance to the electric field.Type: GrantFiled: July 2, 2012Date of Patent: April 5, 2016Assignee: TOUCHSENSOR TECHNOLOGIES, LLCInventors: David W. Caldwell, Rick L. Oppor, Anthony V. Gioiosa, Robert B. Campbell, Thomas M. Schreiber, Bahar N. Wadia, Mark R. Mathews, Donald Charles Mueller, Daniel Eavenson
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Publication number: 20150360647Abstract: A keyless entry system for an automobile includes a capacitive touch screen having at least one drive line and at least one sense line, the drive and sense lines defining a plurality of touch detection nodes. The touch screen is associated with an exterior surface of the automobile. A control circuit coupled to the touch screen is configured to detect proximity of a stimulus to the touch detection nodes. The control circuit provides a control output to a lock or latch controller when the control circuit determines that the stimulus has been placed proximate the touch detection nodes according to predetermined criteria.Type: ApplicationFiled: June 9, 2015Publication date: December 17, 2015Inventor: Mark R. MATHEWS
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Patent number: 8758026Abstract: An interconnect apparatus for interconnecting electrical components includes a body and a spring element retained by and extending from the body. The apparatus is configured so that a portion thereof may be captured between first and second substrates and to connect electrical circuits lying in different planes.Type: GrantFiled: February 5, 2013Date of Patent: June 24, 2014Assignee: Touchsensor Technologies, LLCInventors: Donald C. Mueller, Mark R. Mathews
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Publication number: 20120267964Abstract: A touch switch apparatus emulating a mechanical switch includes a field effect sensor and an electric field stimulator mechanically associated with the field effect sensor. A field generation signal applied to the field effect sensor causes an electric field to be generated thereabout. The electric field stimulator can be moved between first and second positions with respect to the field effect sensor. When moved into proximity with the field effect sensor, the electric field stimulator disturbs the electric field. A detection circuit coupled to the field effect sensor detects and responds to the disturbance to the electric field.Type: ApplicationFiled: July 2, 2012Publication date: October 25, 2012Applicant: TOUCHSENSOR TECHNOLOGIES, LLCInventors: David W. Caldwell, Rick L. Oppor, Anthony V. Gioiosa, Robert B. Campbell, Thomas M. Schreiber, Bahar N. Wadia, Mark R. Mathews, Donald Charles Mueller, Daniel Eavenson
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Patent number: 8227940Abstract: A touch switch apparatus emulating a mechanical switch includes a field effect sensor and an electric field stimulator mechanically associated with the field effect sensor. A field generation signal applied to the field effect sensor causes an electric field to be generated thereabout. The electric field stimulator can be moved between first and second positions with respect to the field effect sensor. When moved into proximity with the field effect sensor, the electric field stimulator disturbs the electric field. A detection circuit coupled to the field effect sensor detects and responds to the disturbance to the electric field.Type: GrantFiled: February 14, 2011Date of Patent: July 24, 2012Assignee: TouchSensor Technologies, LLCInventors: David W. Caldwell, Rick L. Oppor, Anthony V. Gioiosa, Robert B. Campbell, Thomas M. Schreiber, Bahar N. Wadia, Mark R. Mathews, Donald Charles Mueller, Daniel Eavenson
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Publication number: 20110133815Abstract: A touch switch apparatus emulating a mechanical switch includes a field effect sensor and an electric field stimulator mechanically associated with the field effect sensor. A field generation signal applied to the field effect sensor causes an electric field to be generated thereabout. The electric field stimulator can be moved between first and second positions with respect to the field effect sensor. When moved into proximity with the field effect sensor, the electric field stimulator disturbs the electric field. A detection circuit coupled to the field effect sensor detects and responds to the disturbance to the electric field.Type: ApplicationFiled: February 14, 2011Publication date: June 9, 2011Applicant: TOUCHSENSOR TECHNOLOGIES, LLCInventors: David W. Caldwell, Rick L. Oppor, Anthony V. Gioiosa, Robert B. Campbell, Thomas M. Schreiber, Bahar N. Wadia, Mark R. Mathews, Donald Charles Mueller, Daniel Eavenson
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Patent number: 7906875Abstract: A touch switch apparatus for detecting the presence of an object such as a human appendage, the apparatus having a touch pad, an electric field generated about the touch pad and also having a preferably integrated and local control circuit connected to the touch pad and to a controlled device. Practical applications for touch switch apparatus, including use of touch switch apparatus in connection with other structure to emulate mechanical switches.Type: GrantFiled: September 26, 2005Date of Patent: March 15, 2011Assignee: TouchSensor Technologies, LLCInventors: David W. Caldwell, Rick L. Oppor, Anthony V. Gioiosa, Robert B. Campbell, Thomas M. Schreiber, Bahar N. Wadia, Mark R. Mathews, Donald Charles Mueller, Daniel Eavenson
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Patent number: 5546331Abstract: A measuring and control circuit for measuring the voltage of an alternating current source and controlling the operations of an associated load. A memory associated with the microprocessor is programmed to provide information representative of voltage levels associated with various modes of operation associated with the load. Tested levels are compared with programmed voltage levels to determine needed load control.Type: GrantFiled: March 10, 1994Date of Patent: August 13, 1996Assignee: Robertshaw Controls CompanyInventor: Mark R. Mathews