George Rogers Kunnen

US Patent:

20130120070, May 16, 2013

Filed:

Jan 4, 2013

Appl. No.:

13/734117

Inventors:

Arizona Board of Regents, a body Corporate of the State of AZ, Acting for and on behalf of ASU - Scottsdale AZ, US
David R. Allee - Phoenix AZ, US
George R. Kunnen - Chandler AZ, US

Assignee:

Arizona Board of Regents, a body Corporate of the State of A-Z, Acting for and on behalf of ASU - Scottsdale AZ

International Classification:

H03F 3/08
H05K 13/00

US Classification:

330300, 295921

Abstract:

Embodiments of dual stage active pixel devices are described herein. Other examples, implementations, and related methods are also disclosed herein.

US Patent:

20200266825, Aug 20, 2020

Filed:

Feb 14, 2019

Appl. No.:

16/275647

Inventors:

- Austin TX, US
Srikanth JAGANNATHAN - Austin TX, US
George Rogers KUNNEN - Chandler AZ, US

International Classification:

H03M 1/36

Abstract:

An A/D converter includes multiple bin comparators that compare an analog voltage to corresponding bin threshold voltages to provide output signals for providing corresponding comparison results. Some of the comparators includes enable inputs that selectively enable the output signal of the bin comparator to provide the corresponding comparison result based on a corresponding comparison result from at least one other bin comparator. The A/D convertor includes an encoder that utilizes the output signals to provide encoded bit values of the digital output. The A/D converter includes a bin selection circuit that utilizes the output signals to select a voltage level based on the output signals and provides the selected voltage level to a next stage of the A/D convertor. The next stage uses the selected voltage level and the analog voltage to provide at least one lessor bit of the digital output.

US Patent:

20160331994, Nov 17, 2016

Filed:

Jan 13, 2015

Appl. No.:

15/111952

Inventors:

- Scottsdale AZ, US
Barry O'Brien - Chandler AZ, US
Edward Bawolek - Chandler AZ, US
Jitendran Muthuswamy - Chandler AZ, US
George R. Kunnen - Chandler AZ, US
David Allee - Phoenix AZ, US

International Classification:

A61N 5/06
A61B 5/04

Abstract:

Systems and methods for stimulating neural tissue are disclosed. An array of optically emissive pixels is configured to deliver light to the neural tissue of a subject. Individual pixels within the array can be addressed to selectively illuminate a portion of the neural tissue when a neurological event occurs. The system can also include an array of microelectrodes in electrical communication with the array of pixels and a power source. A biocompatible substrate can be used to support the microelectrodes pixels, and the power source. A microelectrode circuit and a pixel circuit can also be supported by the biocompatible substrate.

US Patent:

20160003953, Jan 7, 2016

Filed:

Sep 11, 2015

Appl. No.:

14/851779

Inventors:

George Kunnen - Chandler AZ, US
David Allee - Phoenix AZ, US

Assignee:

Arizona Board of Regents, a body corporate of the State of Arizona, Acting for and on behalf of Ariz - Scottsdale AZ

International Classification:

G01T 3/08
H01L 31/115
H01L 29/423
H01L 27/144
H01L 27/12

Abstract:

Some embodiments include a system. The system includes a sensor device having a sensor element having a sensor output and an amplification element having at least one amplification stage, an amplifier input, and an amplifier output. The sensor output can be coupled to the amplifier input. Further, each amplification stage of the amplification stage(s) can have at least four thin film transistors, an input node, and an output node. Meanwhile, the sensor element can detect a physical quantity and/or an event and can provide an electric signal to the amplification element in response to detecting the physical quantity and/or the event, and the amplification element can amplify the electric signal received from the sensor element. Other embodiments of related systems and methods are also disclosed.