Layers of safety and failsafe capability for operation of class IV laser in consumer electronics devices
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 17, 2018
Grant Date -
Mar 30, 2017
app pub date -
Sep 29, 2016
filing date -
Sep 29, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An optical power transfer device includes a transmitter circuit, including a laser light source that is configured to emit coherent light responsive to operation above a lasing threshold, and is configured to emit incoherent light responsive operation below the lasing threshold. A proximity sensor circuit is coupled to the transmitter circuit and is configured to output a detection signal therefrom responsive to authentication of an optical receiver including at least one photovoltaic cell having surface area of about 4 square millimeters or less within a proximity thereof. The transmitter circuit is configured to operate the laser light source below the lasing threshold to emit the incoherent light responsive to an absence of the detection signal from the proximity sensor circuit. Related devices and methods of operation are also discussed.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully