Telecommunications – Receiver or analog modulated signal frequency converter – Plural output
Patent
1997-06-26
1999-11-09
Bost, Dwayne D.
Telecommunications
Receiver or analog modulated signal frequency converter
Plural output
381 1, 381 18, 381103, H04R 120, H03G 900
Patent
active
059830875
ABSTRACT:
A radio with a tuner and other program sources uses a digital signal processor (DSP) to enhance the audio signal and to generate a stream of digital data including audio data and control data corresponding to loudness functions. A fiber optic data link couples the data stream to a plurality of remote DSP modules each of which drive one or more speakers. Each module contains a user programmed DSP, a digital to analog converter and an amplifier for each associated speaker. The DSP modules are identical except for software parameters which establish a transfer function and a loudness characteristic for each speaker. The same DSP modules and the same speakers can be used in several vehicle types and the system audio performance can be optimized by customizing software for each type of vehicle.
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Augustyn Michael Thomas
Boytim Mathew Alan
Easley J. Alexander
Hoang Tuan A.
Milne James R.
Bost Dwayne D.
Delco Electronics Corporation
Funke Jimmy L
Gantt Alan T.
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