Database searching and retrieval using phoneme and word lattice
AssigneeCanon Kabushiki Kaisha
InventorsJason Peter Andrew Charlesworth, Philip Neil Garner, Jebu Jacob Rajan
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Abstract
A data structure is provided for annotating data files within a database. The annotation data comprises a phoneme and word lattice which allows the quick and efficient searching of data files within the database in response to a user's input query. The structure of the annotation data is such that it allows the input query to be made by voice and can be used for annotating various kinds of data files, such as audio data files, video data files, multimedia data files etc. The annotation data may be generated from the data files themselves or may be input by the user either from a voiced input or from a typed input.
Claims5
A method of searching a data file including annotation data, in response to an input query, the method comprising:
- generating query data corresponding to the input query;
- searching the data file based on at least one query datum and the annotation data;
- and
- outputting search results in dependence upon the result of said searching step,
- wherein the query data is a lattice containing phoneme and word data.
An apparatus for searching a data file including annotation data, in response to an input query, the apparatus comprising:
- a generator operable to generate query data corresponding to the input query;
- a searcher operable to search the data file based on at least one query datum and the annotation data;
- and
- an output operable to output search results in dependence upon the result of said searcher,
- wherein the query data is a lattice containing phoneme and word data.
A computer program product comprising machine-readable program code recorded on a machine-readable recording medium, for controlling the operation of a data processing apparatus on which the program code executes to perform a method of searching a data file including annotation data, in response to an input query, the method comprising:
- generating query data corresponding to the input query;
- searching the data file based on at least one query datum and the annotation data;
- and
- outputting search results in dependence upon the results of said searching step,
- wherein the query data is a lattice containing phoneme and word data.
Dependencies are inferred from the claim text.