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US 7,030,565 B2Granted
Lamp control circuit with selectable color signals
OwnerJerrell Penn Hollawayinventor
Life of this patent
Estimating the term…
Abstract
The present invention describes a control circuit to be used in a lamp adapter that gives the user the ability to flash the main bulb on and off and, at the same time, flash a colored LED to indicate the purpose of the main bulb flashing. A first brief power interruption from the main switch starts the main bulb flashing and energizes a LED of a first color. A second interruption continues the flashing and energizes a LED of a second color. The intended purpose of the invention is be draw attention to a home and indicate whether or not an emergency exists.
Claims9
A light control circuit comprising:
- logic means for detecting power interruptions shorter in time than a prescribed period of time and for selecting modes of operation based on the positions of said interruptions in a series of interruptions, and for providing output signals for each of said modes;
- power switching means coupled between a source of power and a load, which controls the application of said power to said load in response to said output signals from said logic means;
- and
- light producing devices responsive to other of said output signals from said logic means.
1 more element
Dependencies are inferred from the claim text.