The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 23, 2004
Filed:
Aug. 14, 2000
Volker Steinbiss, Aachen, DE;
Dietrich Klakow, Aachen, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A small vocabulary pattern recognition system is used for recognizing a sequence of words, such as a sequence of digits (e.g. telephone number) or a sequence of commands. A representation of reference words is stored in a vocabulary . Input means are used for receiving a time-sequential input pattern representative of a spoken or written word sequence. A pattern recognizer comprises a word-level matching unit for generating a plurality of possible sequences of words by statistically comparing the input pattern to the representations of the reference words of the vocabulary . A cache is used for storing a plurality of most recently recognized words. A sequence-level matching unit selects a word sequence from the plurality of sequences of words in dependence on a statistical language model which provides a probability of a sequence of M words, M≧2. The probability depends on a frequency of occurrence of the sequence in the cache. In this way for many small vocabulary systems where no reliable data is available on frequency of use of word sequences, the cache is used to provide data representative of the actual use.