Illumination – Plural light sources – With support
Reexamination Certificate
2008-03-18
2008-03-18
Husar, Stephen F (Department: 2875)
Illumination
Plural light sources
With support
C362S259000, C362S545000, C362S800000, C315S18500S
Reexamination Certificate
active
07344275
ABSTRACT:
An LED light string employs a plurality of electrical components defined by LEDs and sockets wired in block series-parallel, where the one or more series blocks, each driven at the same input voltage as the source voltage (110 VAC or 220 VAC), are coupled in parallel. The LED light string interfaces to the source voltage using a common household plug; it may also include a corresponding common, household socket, coupled in electrical parallel, to enable multiple light strings to be connected to each other from end to end. In order to directly drive a network of diodes without current-limiting circuitry, the voltage of each series block of diodes must be matched to the input source voltage. This voltage matching requirement for direct AC drive places fundamental restrictions on the number of diodes on each diode series block, depending on the types of diodes used. For the voltage to be “matched,” it is possible to employ LED assemblies of different resistance values; e.g., the LED assemblies may emit different colors or be formed with a dedicated resistor (e.g., drop down resistor) integrally formed as part of at least one of the LED assemblies.
REFERENCES:
patent: 3758771 (1973-09-01), Frohardt et al.
patent: 3950738 (1976-04-01), Hayashi et al.
patent: 4223248 (1980-09-01), Tong
patent: 4271408 (1981-06-01), Teshima et al.
patent: 4298869 (1981-11-01), Okuno
patent: 4316125 (1982-02-01), Noguchi
patent: 4321598 (1982-03-01), Warner
patent: 4329625 (1982-05-01), Nishizawa et al.
patent: 4365244 (1982-12-01), Gillessen et al.
patent: 4367471 (1983-01-01), Gillessen
patent: 4396823 (1983-08-01), Nihei et al.
patent: 4420251 (1983-12-01), James et al.
patent: 4521835 (1985-06-01), Meggs et al.
patent: 4595920 (1986-06-01), Runyan
patent: 4652981 (1987-03-01), Glynn
patent: 4675575 (1987-06-01), Smith et al.
patent: 4727603 (1988-03-01), Howard
patent: 4753546 (1988-06-01), Witz et al.
patent: 4839777 (1989-06-01), Janko et al.
patent: 4843280 (1989-06-01), Lumbard et al.
patent: 4857920 (1989-08-01), Katoaoka et al.
patent: 4870547 (1989-09-01), Crucefix
patent: 4939426 (1990-07-01), Menard et al.
patent: 4954822 (1990-09-01), Borenstein
patent: 4959766 (1990-09-01), Jain
patent: 4984999 (1991-01-01), Leake
patent: 5027037 (1991-06-01), Wei
patent: 5087212 (1992-02-01), Hanami
patent: 5094632 (1992-03-01), Chen et al.
patent: 5130897 (1992-07-01), Kuzma
patent: 5155669 (1992-10-01), Yamuro
patent: 5187377 (1993-02-01), Katoh
patent: 5193895 (1993-03-01), Naruke et al.
patent: 5257020 (1993-10-01), Morse
patent: 5313187 (1994-05-01), Choi et al.
patent: 5323305 (1994-06-01), Ikeda et al.
patent: 5357078 (1994-10-01), Smith et al.
patent: 5366780 (1994-11-01), Rapisarda
patent: 5404282 (1995-04-01), Klinke et al.
patent: 5410458 (1995-04-01), Bell
patent: 5436809 (1995-07-01), Brassier et al.
patent: 5457450 (1995-10-01), Deese et al.
patent: 5463280 (1995-10-01), Johnson
patent: 5495147 (1996-02-01), Lanzisera
patent: 5504398 (1996-04-01), Rothenbuhler
patent: 5528484 (1996-06-01), Hayashi
patent: 5567037 (1996-10-01), Ferber
patent: 5639157 (1997-06-01), Yeh
patent: 5649755 (1997-07-01), Rapisarda
patent: 5661645 (1997-08-01), Hochstein
patent: 5663719 (1997-09-01), Deese et al.
patent: 5669703 (1997-09-01), Wheeler et al.
patent: 5726535 (1998-03-01), Yan
patent: 5762419 (1998-06-01), Yan
patent: 5806965 (1998-09-01), Deese
patent: 5808592 (1998-09-01), Mizutani et al.
patent: 5818884 (1998-10-01), Reymond
patent: 5887967 (1999-03-01), Chang
patent: 5920827 (1999-07-01), Baer et al.
patent: 5924784 (1999-07-01), Chliwnyj et al.
patent: 5936599 (1999-08-01), Reymond
patent: 5941626 (1999-08-01), Yamurd
patent: 5962971 (1999-10-01), Chen
patent: 5988831 (1999-11-01), Pan
patent: 6072280 (2000-06-01), Allen
patent: 6183310 (2001-02-01), Shu
patent: 6190021 (2001-02-01), Huang
patent: 6200003 (2001-03-01), Tseng
patent: 6261019 (2001-07-01), Furukawa
patent: 6361198 (2002-03-01), Reed
patent: 6461019 (2002-10-01), Allen
patent: 6505954 (2003-01-01), Chen
patent: 6830358 (2004-12-01), Allen
patent: 2002/0145874 (2002-10-01), Kahl
patent: 2002/0149938 (2002-10-01), Allen
patent: 2002/0191393 (2002-12-01), Chen
patent: 2003/0015968 (2003-01-01), Allen
patent: 2003/0147245 (2003-08-01), Chen
patent: 2005/0168156 (2005-08-01), Li et al.
patent: 1118394 (1982-02-01), None
patent: 0 805 304 (1997-11-01), None
patent: 2264555 (1993-09-01), None
patent: A 58-119682 (1983-07-01), None
patent: A 3-273495 (1991-12-01), None
patent: WO 00/13469 (2000-03-01), None
Alderbrook Industries Ltd., 1998 Sales Catalogue, p. 16, dated 1998.
Pages from Canadian Tourism Commission web-site, www.travelcanada.ca dated Jul. 23, 2004.
Pages from www.kropla.com web site “World Electric Guide” dated Jul. 23, 2004.
“MicroElectronics Circuits”, Third Edition, Sendra & Smith, Saunders College Publishing, 1991, pp. 126-128, and Exercise 3.12 on pp. 136-137.
“Optoelectronics/Fiber-Optics Applications Manual”, Second Edition, McGraw-Hill Book Company, 1981, pp. 2.18-2.19.
Canadian Standards Association Approval Form, dated Jun. 5, 1998.
Allen David
Allen Mark
Berenato White & Stavish
Fiber Optic Designs, Inc.
Husar Stephen F
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