Stephen T Kitchens

US Patent:

20090205582, Aug 20, 2009

Filed:

Feb 15, 2008

Appl. No.:

12/031795

Inventors:

Stephen Anthony Kitchens - Durham NC, US

Assignee:

SONY ERICSSON MOBILE COMMUNICATIOS AB - Lund

International Classification:

A01K 15/04
A01K 15/02

US Classification:

119719, 3403842

Abstract:

A mobile device, upon user selection and actuation, transmits an ultrasonic frequency signal into the area surrounding the mobile device, at a signal intensity capable of being heard by animals present in such area, whereby the transmitted ultrasonic signal is suitable for use as a defense measure and, alternately, as a training measure for animals present in the transmission area.

US Patent:

20090273355, Nov 5, 2009

Filed:

May 2, 2008

Appl. No.:

12/114361

Inventors:

Stephen Anthony KITCHENS - Durham NC, US

International Classification:

G01R 27/26

US Classification:

324679

Abstract:

A circuit includes a first capacitor having first and second capacitive sensing strips positioned on first and second sliding portions of the slider type mobile device. In the closed position, the first and second capacitive sensing strips overlap one another and in an open position the first and second capacitive sensing strips have no overlap with one another. A voltage divider having a voltage Vcomprised of a first resistor network is coupled with the first capacitor. A voltage comparator having two inputs Vand Vis used to determine a high or low state. A second resistive network is used to set V. The voltage comparator will return a digital high condition indicative of the slider being in the open position when Vis greater than Vand a digital low condition indicative of the slider being in the closed position when Vis less than V.