G - Physics – 03 – B
Patent
G - Physics
03
B
G03B 31/02 (2006.01) G11B 7/003 (2006.01) G11B 20/00 (2006.01) G11B 27/10 (2006.01) G11B 27/32 (2006.01)
Patent
CA 2116025
2116025 9313457 PCTABS00024 A signal conditioner (116) is provided for the output of a digital sound source (110) in a dual digital/analog motion picture theater sound system so that the digitally derived audio signal emulates the analog sound track (58) signal. This allows the digitial source to be easily integrated into the overall sound system, without displacing the existing analog sound track system. The theater sound playback mechanism (124) is provided with the conditioned audio signal when the digital sound source is actuated, and receives the analog sound track signal at other times. The conditioning circuit includes an adjustable impedance (P1, P2) to match the current from the digital sound source to the current from the analog sound track reader (102), a high frequency variable signal adjuster (146) that is complementary to a high frequency emphasis built into the theater playback system, and an optional subwoof output (118).
Digital Theater Systems L.p.
Oyen Wiggs Green & Mutala Llp
LandOfFree
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