Speech recognition method and device
First Claim
Patent Images
1. A method for interactive voice recognition of a word by a voice recognition system, which comprises the steps of:
- performing a word recognition mode by the steps of;
converting a spoken word into an electrical word voice signal;
analyzing the electrical word voice signal for recognizing the spoken word front a vocabulary of predetermined words;
performing the following steps if a definite assignment of the electrical word voice signal to a word from the vocabulary of predetermined words cannot be made;
compiling a preselection of words from the vocabulary of predetermined words which have a sufficient probability of being the spoken word;
determining for each word forming the preselection of words, at least one decisive letter which makes the word distinguishable from other words in the preselection of words;
inquiring which of the decisive letters for the words of the preselection of words is appropriate during a spelling recognition mode;
converting a spelling voice input into an assigned electrical spelling voice signal; and
analyzing the assigned electrical spelling voice signal for recognizing the decisive letter.
9 Assignments
0 Petitions
Accused Products
Abstract
In a method for interactive voice recognition, a word spoken by a user is analyzed. If no definite assignment to a word of a predetermined vocabulary is possible, the word is assigned a number of possible words from the vocabulary. For each word of the preselection of words, a decisive letter that makes the word distinguishable from the other words of the preselection of words is determined. The user is prompted to say the decisive letter for the word being sought. The word being sought is ascertained by voice recognition of the decisive letter.
-
Citations
9 Claims
-
1. A method for interactive voice recognition of a word by a voice recognition system, which comprises the steps of:
-
performing a word recognition mode by the steps of;
converting a spoken word into an electrical word voice signal;
analyzing the electrical word voice signal for recognizing the spoken word front a vocabulary of predetermined words;
performing the following steps if a definite assignment of the electrical word voice signal to a word from the vocabulary of predetermined words cannot be made;
compiling a preselection of words from the vocabulary of predetermined words which have a sufficient probability of being the spoken word;
determining for each word forming the preselection of words, at least one decisive letter which makes the word distinguishable from other words in the preselection of words;
inquiring which of the decisive letters for the words of the preselection of words is appropriate during a spelling recognition mode;
converting a spelling voice input into an assigned electrical spelling voice signal; and
analyzing the assigned electrical spelling voice signal for recognizing the decisive letter. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A device for voice recognition, comprising:
-
a word recognition unit for converting a spoken word into an electrical word voice signal and analyzing the electrical word voice signal for recognizing a word from a vocabulary of predetermined words;
a selection logic, which, if a definite assignment of the electrical word voice signal to the word of the vocabulary of predetermined words cannot be made, compiles a preselection of words from the vocabulary of predetermined words among which the spoken word is located, said selection circuit coupled to said word recognition unit;
a logic circuit for determining for each word of the preselection of words, at least one decisive letter which makes the word distinguishable from other words of the preselection of words, said logic circuit coupled to said word recognition unit;
an output unit for outputting the decisive letter for each of the words of the preselection of words, said output unit coupled to said word recognition unit; and
a spelling recognition unit for converting a spelling voice input into an associated electrical spelling voice signal, and for analyzing the associated electrical spelling voice signal for recognizing of the decisive letter, said spelling recognition unit connected to said word recognition unit.
-
-
9. A navigation system, comprising:
-
a device for voice recognition, including;
a word recognition unit for converting a spoken word into an electrical word voice signal and analyzing the electrical word voice signal for recognizing a word from a vocabulary of predetermined words;
a selection logic, which, it a definite assignment of the electrical word voice signal to the word of the vocabulary of predetermined words cannot be made, compiles a preselection of words from the vocabulary of predetermined words among which the spoken word is located, said selection circuit coupled to said word recognition unit;
a logic circuit for determining for each word of the preselection of words, at least one decisive letter which makes the word distinguishable from other words of the preselection of word, said logic circuit coupled to said word recognition unit;
an output unit for outputting the decisive letter for each of the words of the preselection of words, said output unit coupled to said word recognition unit; and
a spelling recognition unit for converting a spelling voice input into an associated electrical spelling voice signal, and for analyzing the associated electrical spelling voice signal for recognizing of the decisive letter, said spelling recognition unit connected to said word recognition unit.
-
Specification