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Future Automotive Multimedia Subsystem Interconnect Technologies
Technical Paper
2000-01-C028
Sector:
Language:
English
Abstract
For the past decade or so, automotive entertainment subsystem architectures have consisted of a simple Human Machine Interface (HMI), AM-FM tuner, a tape deck, an amplifier and a set of speakers. Over time, as customer demand for more entertainment features increased, automotive entertainment integrators made room for new features by allowing for the vertical integration of analog audio and adding a digital control. The new digital control came to entertainment subsystems via a low-speed multiplexing scheme embedded into the entertainment subsystem components, allowing remote control of these new features. New features were typically incorporated into the entertainment subsystem by independently packaging functional modules. Examples of these modules are cellular telephone, Compact Disc Jockey (CDJ), rear-seat entertainment, Satellite Digital Audio Radio System (S-DARS) receiver, voice and navigation with its associated display and hardware. This paper discusses alternatives to the module-expansion of entertainment subsystem via low-speed digital control and analog audio. Moreover, the discussion is expanded to cover future multimedia and infotainment subsystem interconnects technologies.
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