1
Philip Jason Stephanou, Nicholas Ian Buchan, David William Burns, Kristopher Andrew Lavery, Srinivasan Kodaganallur Ganapathi: Touchscreen with bridged force-sensitive resistors. QUALCOMM MEMS Technologies, Weaver Austin Villeneuve & Sampson, May 5, 2015: US09024910 (22 worldwide citation)

A touch sensor may include a digital resistive touch (DRT) sensor architecture that is substantially free of air gaps. The DRT touch sensor may include a layer of force-sensitive resistor (FSR) material on an array of row and column electrodes. The electrodes may be formed on a substantially transpa ...


2
Srinivasan Kodaganallur Ganapathi, Nicholas Ian Buchan, David William Burns, Thad William Smith, Ion Elinor Opris: Controller architecture for combination touch, handwriting and fingerprint sensor. QUALCOMM MEMS Technologies, Weaver Austin Villeneuve & Sampson, June 3, 2014: US08743082 (21 worldwide citation)

A separate control system may be configured for a combined sensor device. Alternatively, at least part of the control system may be included in another device, such as a processor of a mobile device. Software for handwriting, touch and fingerprint detection may be included in the control system. Low ...


3
Kostadin Dimitrov Djordjev, Leonard Eugene Fennell, Nicholas Ian Buchan, David William Burns, Samir K Gupta, Sanghoon Bae: Display with peripherally configured ultrasonic biometric sensor. QUALCOMM Incorporated, Weaver Austin Villeneuve & Sampson, April 26, 2016: US09323393 (14 worldwide citation)

Various techniques and apparatuses are disclosed that provide for pixelated display modules that integrate an ultrasonic fingerprint or biometric sensing capability. In some implementations, the ultrasonic fingerprint sensor and the display components of the display module may share a common backpla ...


4
Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, Suryaprakash Ganti, John Keith Schneider, David William Burns: Air/object determination for biometric sensors. QUALCOMM Incorporated, Weaver Austin Villeneuve & Sampson, November 24, 2015: US09195879 (13 worldwide citation)

A fingerprint sensing apparatus may include a fingerprint sensor system and a control system capable of receiving fingerprint sensor data from the fingerprint sensor system. The control system may be capable of determining fingerprint sensor data blocks for at least a portion of the fingerprint sens ...


5
Philip Jason Stephanou, David William Burns, Ravindra Vaman Shenoy: Stacked lateral overlap transducer (SLOT) based three-axis accelerometer. QUALCOMM MEMS Technologies, Weaver Austin Villeneuve & Sampson, May 19, 2015: US09032796 (7 worldwide citation)

This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for making and using accelerometers. Some such accelerometers include a substrate, a first plurality of electrodes, a second plurality of electrodes, a first anchor attached to the ...


6
Philip Jason Stephanou, Cenk Acar, Ravindra Vaman Shenoy, David William Burns, Justin Phelps Black, Kurt Edward Petersen, Srinivasan Kodaganallur Ganapathi: Micromachined piezoelectric three-axis gyroscope and stacked lateral overlap transducer (slot) based three-axis accelerometer. QUALCOMM MEMS Technologies, Weaver Austin Villeneuve & Sampson, May 5, 2015: US09021880 (5 worldwide citation)

This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for making and using x-axis gyroscopes, y-axis gyroscopes, z-axis gyroscopes, two-axis accelerometers and three-axis accelerometers. Combining fabrication processes for such device ...


7
Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, Suryaprakash Ganti, John Keith Schneider, David William Burns: Layered filtering for biometric sensors. QUALCOMM Incorporated, Weaver Austin Villeneuve & Sampson, February 28, 2017: US09582705 (5 worldwide citation)

A fingerprint sensing apparatus includes a fingerprint sensor system and a control system capable of receiving fingerprint sensor data from the fingerprint sensor system. The control system may determine, according to the fingerprint sensor data, whether an object is positioned proximate a portion o ...


8
Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, Suryaprakash Ganti, John Keith Schneider, David William Burns: Finger/non-finger determination for biometric sensors. QUALCOMM Incorporated, Weaver Austin Villeneuve & Sampson, May 30, 2017: US09665763 (2 worldwide citation)

Some methods may involve determining whether an object is positioned on or near a portion of a fingerprint sensor system. If an object is positioned on or near the portion of the fingerprint sensor system, an acoustic impedance of at least a portion of the object may be determined. Based at least in ...


9
Philip Jason Stephanou, David William Burns: Piezoelectric microphone fabricated on glass. QUALCOMM MEMS Technologies, Weaver Austin Villeneuve & Sampson, May 13, 2014: US08724832 (2 worldwide citation)

This disclosure provides systems, methods and apparatus for sense elements in an electromechanical microphone device. In one aspect, a piezoelectric sense element may include a glass substrate, electrode layers, piezoelectric layers, and elastic layers. The elastic layers may serve to modify the neu ...


10
Philip Jason Stephanou, David William Burns, Ravindra V Shenoy: Microspeaker with piezoelectric, metal and dielectric membrane. QUALCOMM MEMS Technologies, Weaver Austin Villeneuve & Sampson, August 19, 2014: US08811636 (2 worldwide citation)

This disclosure provides systems, methods and apparatus for microspeaker devices. In one aspect, a microspeaker element may include a deformable dielectric membrane that spans a speaker cavity. The deformable dielectric membrane can include a piezoactuator and a dielectric layer. Upon application of ...