Visual/voice input recognition sensor

Details Visual/voice input recognition sensor Visual/voice input recognition sensor

1987-01-07

1990-01-02

Shoop, Jr., William M.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

358209, H03K 500

Patent

active

048916021

ABSTRACT:
Raw feature sensors are arranged in rank order for sensing raw features which exceed a respective set of raw feature values. Each raw feature sensor determines if a feature exists which falls within its range. The raw feature sensors have ranges which are exponentially separated by a constant factor, which may be chosen to allow easy approximate calculation of small integer ratios or other important ratios. A contrast-enhancer may be used in the case of visual data to improve the operation of the raw feature sensors. A ratio-detector network is repsonsive to the raw feature sensors and calculates ratios of the raw feature data. The ratio-detector network pairwise ANDs each possible pair of results from the raw feature sensors and combines these pairwise AND results with OR gates to generate a set of outputs, each of which indicates the detection of a single ratio.

REFERENCES:
patent: 3997797 (1976-12-01), Sahara et al.
patent: 4383135 (1983-05-01), Scott et al.
patent: 4758794 (1988-07-01), Ogawa

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