Stimulus analysis system and method having adaptive artifact...

Details Stimulus analysis system and method having adaptive artifact... Stimulus analysis system and method having adaptive artifact...

2001-11-01

2009-08-11

Chin, Vivian (Department: 2614)

Electrical audio signal processing systems and devices

Noise or distortion suppression

Using signal channel and noise channel

C381S058000, C381S071100, C600S559000, C073S585000, C342S165000

Reexamination Certificate

active

07574007

ABSTRACT:
A stimulus analysis system and artifact rejection method are disclosed. The method may be used in many applications, such as, for example, DPOAE testing, TEOAE testing, BAER testing, ultrasound, MRI, RADAR, GPS, EEG, EKG, or communications. In one embodiment, a system receives a signal, and depending on the noise power of the signal, the signal is placed in one of a plurality of buffers or is discarded. This process is repeated. The combination of buffers that yields the lowest noise power is then selected. The selected combination of buffers may then be used to calculate a signal to noise ratio, which may be used to determine whether the signal received is acceptable, indicating, for example, that a test has been passed or failed.

REFERENCES:
patent: 5601091 (1997-02-01), Dolphin
patent: 6198693 (2001-03-01), Marash
J. G. Proakis and D. G. Manolakis, Digital Signal Processing, Third Edition, Printice-Hall, New Jersey, 1996, pp. 448-475.

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