Self-contained active sound reproducer with switchable control u

Details Self-contained active sound reproducer with switchable control u Self-contained active sound reproducer with switchable control u

1992-10-21

1994-05-17

Kuntz, Curtis

Electrical audio signal processing systems and devices

Including amplitude or volume control

Remote

381 80, 381 81, 381104, 381123, 381 77, 381120, 34082524, 34082525, H03G 300

Patent

active

053135245

ABSTRACT:
An active sound reproducer (76, 78) receives an audio signal and setting signals (volume settings, filter coefficients) via a digital bus (75) for processing the audio signal. Normally, the setting signals are applied by a suitable ("compatible") control unit (74). If this unit is not present, this task is taken over by one sound reproducer operating as a "master". In a setup procedure, it is determined which one of the sound reproducers operates as a master. Each sound reproducer is adapted to receive remote control signals and to transmit these signals to the master reproducer via the digital bus. This master reproducer then distributes the setting signals to the relevant sound reproducers via the digital bus. The control unit or the reproducer operating as a master may be located in another space.

REFERENCES:
patent: 4862159 (1989-08-01), Marusa et al.
patent: 5182551 (1993-01-01), Goto
"Two Buses Organize the Electronic Home" Electronics (USA) vol. 54, No. 19 (Sep. 22, 1981) pp. 76-78, by J. Gosch.
Mano, M. Morris, Computer Architecture, 1982 Prentice Hall pp. 459-462.
International Electrotechnical Commission (IEC), First Edition-1989-03 (odd numbered pages-English translation (even numbered pages are in French)).

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