Industry Patents
Patent: 8243278
Non-Contact Selection and Control of Lighting Devices
(Click image for PDF of full patent)
| Patent Number: |
8243278 |
| Title: |
Non-Contact Selection and Control of Lighting Devices |
| Abstract: |
The present disclosure presents systems and methods for providing for
detecting a presence of an object or a user via a non-contact selection
switch. An LED may emit a signal, comprising high components and low
components within a plurality of pulses. A detector may determine that an
average intensity of a received portion of the electromagnetic signal is
below a predetermined threshold. The average intensity may be responsive
to a ratio of high components duration over a period of time to low
components duration over the period of time. An object located in
proximity of the non-contact switch may reflect the portion of the
signal. The detector may detect presence of the object by determining
that a sum of average intensities of the received portion of the
electromagnetic signal and the reflected portion of the electromagnetic
signal exceeds the predetermined threshold responsive to the ratio of a
duration of high components to a duration of low components within or
over the period of time.
|
| Country of Issue: |
US |
| First Named Inventor: |
Valois |
| Assignee: |
Integrated Illumination Systems |
| Continuation or Divisional of: |
|
| International Classification: |
G01N 21/55 |
| US Classification: |
356/448 |
| Issue Date: |
08-14-2012 |
| Filing Date: |
05-15-2009 |
| Application : |
12/466647 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
8243278 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
8243278 at Google Patents |
1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.
Disclaimer: This web site is not intended to offer comprehensive or sufficient
information to enable a full legal analysis of a patent or potential
infringement. The information provided on this web site is intended
as general information only, and is not intended to serve as legal
opinion, legal advice or as a substitute for legal counsel. If you
have a question about a specific factual situation, you should
contact an attorney directly
|
