Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent
1990-04-11
1992-06-16
Shaw, Dale M.
Electrical audio signal processing systems and devices
One-way audio signal program distribution
Public address system
381 41, G10L 506
Patent
active
051230496
ABSTRACT:
A pattern recognition apparatus includes a pattern memory unit for storing a pattern set constituted by a plurality of reference patterns and a comparison unit for comparing an input pattern with each reference pattern stored in the pattern memory unit in the recognition mode. In the pattern recognition apparatus, the pattern memory unit includes first and second pattern memory sections, a switch is provided to select one of the first and second pattern memory sections, the comparison unit is constituted to compare the input pattern with a desired reference pattern stored in one of the pattern memory sections which is selected by the switch in the registration mode, and a pattern modifying unit is provided to copy the pattern set stored in one of the pattern memory sections which is selected by the switch into the other pattern memory section in the registration mode, and modify the desired reference pattern in one of the first and second pattern memory sections according to the comparison result obtained from the comparison unit.
REFERENCES:
patent: 4618984 (1986-10-01), Das et al.
patent: 4827520 (1989-05-01), Zeinstra
patent: 4829577 (1989-05-01), Kuroda et al.
patent: 4933973 (1990-06-01), Porter
Doerrler Michelle
Kabushiki Kaisha Toshiba
Shaw Dale M.
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