Speech recognition system with implicit checksum

Details Speech recognition system with implicit checksum Speech recognition system with implicit checksum

1997-11-03

2000-04-11

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

Application

704231, 714807, G10L 1522

Patent

active

060497688

ABSTRACT:
A user identifier is preassigned to a user, the user identifier being generated by retrieving an implicit checksum and calculating the user identifier (by, for example, using a hidden Markov model) using a checksum operation such as a modulo algorithm so that the user identifier conforms to the implicit checksum, the implicit checksum being based on a checksum parameter, such as the current date or month or a user's phone number. The preassigned user identifier is then received from the user, at and least one recognized identifier is received that is based on the received preassigned user identifier. A checksum is calculated for one recognized identifier using a checksum operation, and the implicit checksum is retrieved. The calculated checksum is compared with the implicit checksum, and the one recognized identifier is selected as the received preassigned user identifier if the calculated checksum equals the retrieved implicit checksum. The selected recognized identifier can be determined as the received user identifier by presenting the selection to the user and receiving confirmation.

REFERENCES:
patent: 3571581 (1971-03-01), Kaus et al.
patent: 5222187 (1993-06-01), Doddington et al.
patent: 5283829 (1994-02-01), Anderson
patent: 5652786 (1997-07-01), Rogers
patent: 5737489 (1998-04-01), Chou et al.
patent: 5832235 (1998-11-01), Wilkes
patent: 5875248 (1999-02-01), Lewis

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