United States Patent (19) 11 Patent Number: 5,930,754 Karaali Et Al
USOO593.0754A United States Patent (19) 11 Patent Number: 5,930,754 Karaali et al. (45) Date of Patent: Jul. 27, 1999 54 METHOD, DEVICE AND ARTICLE OF OTHER PUBLICATIONS MANUFACTURE FOR NEURAL-NETWORK BASED ORTHOGRAPHY-PHONETICS “The Structure and Format of the DARPATIMIT CD-ROM TRANSFORMATION Prototype”, John S. Garofolo, National Institute of Stan dards and Technology. 75 Inventors: Orhan Karaali, Rolling Meadows; “Parallel Networks that Learn to Pronounce English Text' Corey Andrew Miller, Chicago, both Terrence J. Sejnowski and Charles R. Rosenberg, Complex of I11. Systems 1, 1987, pp. 145-168. 73 Assignee: Motorola, Inc., Schaumburg, Ill. Primary Examiner David R. Hudspeth ASSistant Examiner-Daniel Abebe 21 Appl. No.: 08/874,900 Attorney, Agent, or Firm-Darleen J. Stockley 22 Filed: Jun. 13, 1997 57 ABSTRACT A method (2000), device (2200) and article of manufacture (51) Int. Cl. .................................................. G10L 5/06 (2300) provide, in response to orthographic information, 52 U.S. Cl. ............... 704/259; 704/258; 704/232 efficient generation of a phonetic representation. The method 58 Field of Search ..................................... 704/259,258, provides for, in response to orthographic information, effi 704/232 cient generation of a phonetic representation, using the Steps of inputting an Orthography of a word and a predetermined 56) References Cited Set of input letter features, utilizing a neural network that has U.S. PATENT DOCUMENTS been trained using automatic letter phone alignment and predetermined letter features to provide a neural network 4,829,580 5/1989 Church. 5,040.218 8/1991 Vitale et al.. hypothesis of a word pronunciation. 5,668,926 9/1997 Karaali et al.
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