Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent
1986-10-21
1989-05-09
Shoop, Jr., William M.
Electrical audio signal processing systems and devices
One-way audio signal program distribution
Public address system
3645135, 381 44, 381 45, G10L 500
Patent
active
048295760
ABSTRACT:
A text locating system recognizes spoken utterances, uses the recognized words as a search string, and searches text for words matching that search string. The probability that a given vocabulary word is selected as a search word is altered both by limiting the recognizable vocabulary to words in the text to the searched, and by altering the probability that individual recognizable words will be selected as a function of the number of time they occur in that text. The system performs incremental searches by adding successively recognized words to the search string and searching for the next occurrence of the string in response to each such addition. The invention can be used in a text editing system which enables a user to switch between a dictation mode, which inserts recognized words into text, and a search mode, which uses them to search for new cursor locations. Broadly speaking, the invention provides a computer system which recognizes spoken words, which has a data structure representing words; which uses that data structure for a purpose other than speech recognition; and which alters the probability that a given vocabulary word will be recognized as a function of the frequency of that word in the data structure.
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Dragon Systems, Inc.
Porter Edward W.
Shoop Jr. William M.
Young Brian
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