Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices
Patent
1993-11-12
1994-11-01
Isen, Forester W.
Electrical audio signal processing systems and devices
Monitoring/measuring of audio devices
381 59, 381 86, 455 672, 455 66, 455 99, H04R 2900, H04B 100
Patent
active
053613058
ABSTRACT:
A vehicle audio system is tested during vehicle assembly by a computer controlled system coupled to a vehicle data bus via a diagnostic connector. Radio settings are controlled via the data bus. RF signals bearing preset tones are generated according to computer command via an encoder and RF generator and coupled to the audio antenna base. A microphone in the vehicle detects tones from the speakers and a decoder analyzes the tones to determine whether a tone is correct. Certain speakers are selected for test by adjustment of Fade and Balance controls to check speaker connections. AM and FM SEEK function are checked to verify radio circuits and antenna connections.
REFERENCES:
patent: 4603325 (1986-07-01), Marino et al.
patent: 4743887 (1988-05-01), Pothier
patent: 5042070 (1991-08-01), Linna et al.
patent: 5108335 (1992-04-01), Carey et al.
patent: 5164703 (1992-11-01), Rickman
Dobosz Paul J.
Easley J. Alexander
Herkness Randall R.
Soutar Larry W.
Stacey Lisa A.
Delco Electronics Corporation
Funke Jimmy L.
Isen Forester W.
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