Lighting control device having improved long fade off

Details Lighting control device having improved long fade off Lighting control device having improved long fade off

2007-01-23

2007-01-23

Philogene, Haissa (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Plural load device regulation

C315S291000, C315S292000, C315S293000, C315S307000, C315S360000

Reexamination Certificate

active

11320027

ABSTRACT:
A lighting control device for controlling the light intensity level of at least one lamp is disclosed. The lighting control device includes an actuator and a controller, such as a microcontroller, for example. The controller is operable to cause the light intensity level of the lamp to fade at a first fade rate when the actuator is actuated. If the controller determines that the actuator has been actuated for at least a predefined hold time, the controller causes the light intensity level of the lamp to fade at a second fade rate for a predefined long fade time. After the long fade time elapses, the controller causes the light intensity level of the lamp to fade to off at a third fade. The first fade rate is based on a predefined fade-off time that represents a time allotted for fading the light intensity level of the lamp from its initial light intensity level to off. To prevent the light intensity level from fading to off before the hold time elapses, the fade off time may be defined to be longer than the hold time. The second fade rate may be slower than the first fade rate and have an exponential fade profile. The third fade rate may be a predefined rate at which the controller is operable to cause the light intensity level to fade from full on to full off. The third fade rate may be faster than the second fade rate.

REFERENCES:
patent: 4649323 (1987-03-01), Pearlman et al.
patent: 5059871 (1991-10-01), Pearlman et al.
patent: 5248919 (1993-09-01), Hanna et al.
patent: 5399940 (1995-03-01), Hanna et al.
patent: 5463286 (1995-10-01), D'Aleo et al.
patent: 5621283 (1997-04-01), Watson et al.
patent: 6169377 (2001-01-01), Bryde et al.
patent: 6300727 (2001-10-01), Bryde et al.
patent: 6380696 (2002-04-01), Sembhi et al.
patent: 2002/0060530 (2002-05-01), Sembhi et al.
patent: 1 104 979 (2001-06-01), None
patent: 08/185986 (1996-07-01), None
U.S. Appl. No. 10/753,035, filed Jan. 7, 2004, Johnson et al.

Affiliated with

Also associated with

Rating

Lighting control device having improved long fade off does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lighting control device having improved long fade off, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lighting control device having improved long fade off will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3750396