National Semiconductor Corporation - Santa Clara CA
International Classification:
H03M 1/34 H03M 3/00
US Classification:
341143, 341158
Abstract:
A circuit includes an analog-to-digital converter configured to receive an analog input signal and generate first digital values at a first sampling rate. The first digital values have a first bit-width. The circuit also includes an interpolator configured to receive the first digital values and generate second digital values at a second sampling rate higher than the first sampling rate. The second digital values have a second bit-width equal to or greater than the first bit-width. The circuit further includes a digital filter configured to receive the second digital values and perform bit-width reduction in a recoverable manner to generate third digital values. The third digital values have a third bit-width less than the first and second bit-widths. The circuit could optionally include a recovery circuit configured to process the third digital values to generate recovered digital values at the first sampling rate. The recovered digital values have the first bit-width.
- Dallas TX, US Alfred Gomes - Sunnyvale CA, US Domenico Granozio - Borgarello, IT Matthew Christopher Kessler - Denver CO, US Scott D. Kulchycki - Mountain View CA, US
International Classification:
G01N 27/22 B65H 7/02
Abstract:
A capacitive sensing system based on projected self-capacitance is suitable for use in printing systems/products to sense paper tray status. In example embodiments, a capacitive sensing system is adapted for sensing the condition/characteristics of paper in the paper tray, such as paper size, stack height and page count and paper dielectric. The capacitive sensing system can be configured with one or more shielded capacitive sensors incorporated into the paper tray, and oriented relative to the paper according to the paper condition/characteristic sensed.
Blood Pulse Measurement Based On Capacitive Sensing
- Dallas TX, US Scott Douglas Kulchycki - Mountain View CA, US David Zakharian - San Francisco CA, US Preeti Rajendran - Mountain View CA, US
International Classification:
A61B 5/0245 A61B 5/024 A61B 5/00
US Classification:
600383, 600372
Abstract:
A capacitive sensing system is adapted for noninvasive measurement of blood pulse (hear rate). A capacitive sensor is located near a skin pulse point exhibiting pulse displacement of skin tissue from vascular pulsation (for example, the temple area of the head), and includes a sensor electrode disposed over and spaced from the skin pulse point, such that the distance between sensor electrode and the skin pulse point cycles between a proximal and a distal displacement distance based on vascular pulsation. A capacitance-to-digital conversion (CDC) unit includes excitation circuitry providing sensor excitation to generate a sensor E-field between the sensor electrode and the skin pulse point based on sensor self-capacitance, and capacitance acquisition/conversion circuitry that acquires capacitance measurements for proximal and distal self-capacitance (for example, by multi-phase capacitive charge transfer using a switched capacitor arrangement), and converts these capacitance measurements into sensor data representative of vascular pulsation.
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Product Manager
Texas Instruments Feb 1, 2016 - May 2017
General Manager and Product Line Manager, Sensor Signal Path
Texas Instruments Mar 2013 - Jan 2016
Manager of Product Management, Sensor Signal Path
Texas Instruments Jan 2014 - May 2015
Manager of Applications and Systems, Sensor Signal Path
Texas Instruments Dec 2011 - Feb 2013
Manager of Product Management and Product Marketing, High-Speed Signal Path
Education:
Stanford University 2001 - 2007
Doctorates, Doctor of Philosophy, Electrical Engineering
Stanford University 2001 - 2004
Masters, Electrical Engineering
Simon Fraser University 1996 - 2001
Bachelors, Bachelor of Arts, Electrical Engineering
Skills:
Product Marketing Marketing Management Ic Semiconductors Business Development Marketing Strategy Analog Product Development Product Management Cmos Rf Wireless Analog Circuit Design Mixed Signal Silicon Semiconductor Industry Soc Integrated Circuit Design Radio Frequency Integrated Circuits
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