1
Timothy P Allen, Richard R Schediwy, Federico Faggin: Stylus input capacitive touchpad sensor. Synaptics, D Alessandro & Ritchie, August 24, 1999: US05942733 (378 worldwide citation)

A capacitive touch pad comprises a substrate material, such as a PC board type laminate material, having a plurality of first parallel conductive traces running in a first (X) direction disposed on a first face thereof, and a plurality of second parallel conductive traces running in a second (Y) dir ...


2
Richard R Schediwy, Jeffrey O Pritchard, Ting Kao, Timothy P Allen, John C Platt: Object position detector. Synaptics Incorporated, D Alessandro & Ritchie, January 19, 1999: US05861583 (327 worldwide citation)

An object proximity sensor includes a capacitive touch-sensitive transducer including row conductive lines insulated from column conductive lines to from a matrix. An insulating layer is disposed over the matrix and has a thickness selected to achieve significant capacitive coupling between an objec ...


3
Josef C Frisch, Gregory E Leyh, John C Platt, Timothy P Allen, Richard R Schediwy, Federico Faggin: Force sensing touchpad. Synaptics Incorporated, D Alessandro & Ritchie, December 29, 1998: US05854625 (303 worldwide citation)

A force sensing touchpad comprises a substantially rigid touch surface; a substantially rigid frame; a plurality of spring structures formed integrally with the touch surface and mechanically connected to the reference frame; and a circuit for deriving force information from capacitances proportiona ...


4
Jeffrey Orion Pritchard, Timothy P Allen, Richard R Schediwy, John C Platt, Ting Kao: Object position detector. Synaptics Incorporated, October 1, 1998: TW341684 (48 worldwide citation)

An object proximity sensor, including:a capacitive touch-sensitive transducer including row conductive lines disposed in a first direction insulated from column conductive lines disposed in a second direction generally perpendicular to the first direction to form a matrix, and an insulating layer di ...


5
Richard R Schediwy, Robert J Bolender, Adam Schwartz, Fritz Norby, Shawn P Day: Input device with force sensing. Synaptics Incorporated, Osha Liang, June 16, 2015: US09057653 (18 worldwide citation)

Devices and methods are provided that utilize a first electrode disposed on a first substrate and a second electrode disposed on a second substrate, where the first electrode and the second electrode define at least part of a variable capacitance. A third substrate is arranged between the first subs ...


6
Richard F Lyon, Richard R Schediwy: Computer memory system. Schlumberger Systems and Services, Fitch Even Tabin & Flannery, January 3, 1989: US04796227 (17 worldwide citation)

An improved computer memory system based on a novel four transistor memory cell and an improved address decoder circuit is disclosed. The memory cell can be fabricated using currently available logic fabrication processes and requires a silicon area less than that required by prior art static memory ...


7
Massoud Badaye, Richard R Schediwy: Passive stylus for capacitive sensors. Synaptics, February 28, 2012: US08125469 (16 worldwide citation)

A passive stylus for capacitive sensors comprises a tip and a shaft. The tip is configured to couple electrically with a capacitive sensing device and to couple physically and electrically with the stylus shaft. The tip comprises a contact surface, a support region, and a flexible region. The contac ...


8
Adam Schwartz, Kirk Hargreaves, Joseph Kurth Reynolds, Richard R Schediwy: Transcapacitive sensor devices with ohmic seams. Synaptics Incorporated, January 28, 2014: US08638107 (15 worldwide citation)

A transcapacitive sensing device has and ohmic seam which sections a plurality of transmitter electrodes and also sections a plurality of receiver electrodes. A processing system is communicatively coupled with the transmitter electrodes and the receiver electrodes and configured to: transmit a firs ...


9
Richard R Schediwy: Input device with force sensing and haptic response. Synaptics Incorporated, Osha Liang, January 31, 2017: US09557857 (5 worldwide citation)

Devices and methods are provided that facilitate improved input device performance. The devices and methods utilize a first electrode disposed on a first substrate, a second electrode coupled to a first side of a piezoelectric material and a third electrode coupled to a second side of the piezoelect ...


10
Richard R Schediwy, Pascale El Kallassi: Device and method for proximity sensing with force imaging. Synaptics Incorporated, Osha Liang, December 12, 2017: US09841850 (4 worldwide citation)

Methods, systems and devices are described for operating an electronic system which includes a pliable component having an input surface, a first array of sensor electrodes, a second array of sensor electrodes, and a third array of sensor electrodes. The input device also includes a conductive subst ...