US 7,320,520 B2 | ||
Portable multimedia projection system | ||
Lonnie G. Johnson, Atlanta, Ga. (US) | ||
Assigned to Johnson Research and Development Co., Inc., Atlanta, Ga. (US) | ||
Filed on Jun. 21, 2006, as Appl. No. 11/425,400. | ||
Application 11/425400 is a continuation of application No. PCT/US2004/034315, filed on Oct. 19, 2004. | ||
Claims priority of provisional application 60/512673, filed on Oct. 20, 2003. | ||
Prior Publication US 2006/0227291 A1, Oct. 12, 2006 | ||
This patent is subject to a terminal disclaimer. | ||
Int. Cl. G03B 21/14 (2006.01); G03B 21/22 (2006.01); G03B 31/00 (2006.01); H04N 5/64 (2006.01); A47B 81/06 (2006.01); H05K 5/00 (2006.01) |
U.S. Cl. 353—15 [353/119; 353/122; 348/838; 181/198; 181/146] | 4 Claims |
1. A portable multimedia projection system comprising:
a portable housing;
a digital video disc/digital versatile disc (DVD) player supported by the portable housing, the DVD player outputting audio
visual data signals corresponding to data read from a DVD;
a digital projector disposed at least partially within the housing, the digital projector externally projecting images relative
to the portable housing, the projector being one of a liquid crystal display (LCD) and digital light processing (DLP);
an amplified sound system being disposed at least partially within the housing, the amplified sound system including an output
for at least one of a 2.1 channel sound system, a 5.1 channel sound system, a 6.1 channel sound system and a 7.1 channel sound
system; and
a controller disposed within the housing, the controller being electrically coupled to the DVD player, the amplified sound
system and the digital projector, the controller directing audio signals from the DVD player to the amplified sound system
and directing video signals from the DVD player to the digital projector.
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