Electric lamp and discharge devices: systems – Current and/or voltage regulation
Reexamination Certificate
2011-06-28
2011-06-28
Owens, Douglas W (Department: 2821)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
C324S711000
Reexamination Certificate
active
07969100
ABSTRACT:
A bulb detection circuit is associated with a dimmer circuit for a lighting system. The bulb detection circuit is operable to detect whether an incandescent or a fluorescent bulb is received in an electric light socket. The socket may be hardwired to the circuit, or could be plugged into an electrical outlet. The bulb detection circuit may utilize a separately inventive method of measuring the resistance by looking at an RC circuit time constant. Further, the bulb detection circuit may utilize a separately inventive method of identifying a short circuit by again looking at the RC circuit time constant.
REFERENCES:
patent: 5430356 (1995-07-01), Ference et al.
patent: 5530322 (1996-06-01), Ference et al.
patent: 5608293 (1997-03-01), Blom
patent: 5910875 (1999-06-01), Tian et al.
patent: 5952791 (1999-09-01), Watanabe et al.
patent: 5990635 (1999-11-01), Ference et al.
patent: 6008593 (1999-12-01), Ribarich
patent: 6046550 (2000-04-01), Ference et al.
patent: 6081123 (2000-06-01), Kasbarian et al.
patent: 6188181 (2001-02-01), Sinha et al.
patent: 6300727 (2001-10-01), Bryde et al.
patent: 6366031 (2002-04-01), Klien
patent: 6380692 (2002-04-01), Newman, Jr. et al.
patent: 6577076 (2003-06-01), Li et al.
patent: 6804129 (2004-10-01), Lin
patent: 6836082 (2004-12-01), Buij et al.
patent: 7015654 (2006-03-01), Kuhlmann et al.
patent: 7030916 (2006-04-01), Aotsuka
patent: 7106261 (2006-09-01), Nagel et al.
patent: 7173381 (2007-02-01), Hyeon-Yong
patent: 2005/0156534 (2005-07-01), Oh
patent: 2006/0215345 (2006-09-01), Huizenga
patent: 2007/0001624 (2007-01-01), Blondia
patent: 2007/0090775 (2007-04-01), Ribarich
patent: 1387489 (2004-02-01), None
patent: 2002025787 (2002-01-01), None
patent: 20040061649 (2004-07-01), None
patent: 2005060320 (2005-06-01), None
L.M. Lee et al., An Automatic Lamp Detection Technique for Electronic Ballasts, Article, 2005. part 1, pp. 578-581.
T.A. Hough, Measuring and Modeling Intensity Distributions of Light Sources in Waveguide Illumination Systems, Article, Mar. 1995, pp. 819-823, vol. 34 No. 3.
International Search Report and Written Opinion dated Jul. 7, 2008.
Barnett Thomas Alan
Iott Jeffrey
Xu Ji-an
A Minh D
Carlson & Gaskey & Olds PC
Liberty Hardware Manufacturing Corp.
Owens Douglas W
LandOfFree
Bulb type detector for dimmer circuit and inventive... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bulb type detector for dimmer circuit and inventive..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bulb type detector for dimmer circuit and inventive... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2718562