Communications: electrical – Digital comparator systems
Patent
1979-11-01
1982-04-27
Boudreau, Leo H.
Communications: electrical
Digital comparator systems
G06K 900
Patent
active
043273548
ABSTRACT:
A device for recognizing overall patterns of digital signals which are arranged according to at least one coordinate comprises: first storage means for the storage of a pattern to be presented for comparison; a window device for selecting a local pattern of a number of digital signals from the overall pattern; a stepping mechanism for coordinate-wise adjustment of the window device over a step; a gradient determining device for determining, for predetermined coordinate values within the window, the absolute value of the coordinate-wide gradient of the values of the digital signals prevailing at said coordinate values; a moment generator for receiving these absolute values, for determining the moment therefrom with respect to a focussing point of the window, and for generating an output signal when a predetermined minimum value of said moment is reached in order to indicate the reaching of a local maximum in said coordinate-wise gradient; second storage means for the storage of a number of reference patterns; and a difference determining device for comparing, under control of the output signal of the moment generator, a local pattern selected by the window device with the reference patterns and for alternatively forming a non-correspondence/correspondence signal. If the difference is too large, the "new" pattern is stored as a further reference, so that the learning phase and the use phase occur simultaneously. The comparison does not take into account a difference near substantially coincident acute amplitude gradients.
REFERENCES:
patent: 3016518 (1962-01-01), Taylor
patent: 3088096 (1963-04-01), Steinbuch
patent: 3701095 (1972-10-01), Yamaguchi et al.
patent: 3846755 (1974-11-01), Hart
patent: 3936800 (1976-02-01), Ejiri et al.
patent: 4005385 (1977-01-01), Joynson et al.
Boudreau Leo H.
Briody Thomas A.
Goodman Edward W.
Streeter William J.
U.S. Philips Corporation
LandOfFree
Learning device for digital signal pattern recognition does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Learning device for digital signal pattern recognition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Learning device for digital signal pattern recognition will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2200136