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US5781884A Expired / Lapsed US ⏱️ 0.0 years remaining

Grapheme-to-phoneme conversion of digit strings using weighted finite state transducers to apply grammar to powers of a number basis

Assignee: Nokia of America Corp
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Filing: 1996-11-22
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Granted: 1998-07-14
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Expires: 2016-11-22
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Abstract

Abstract The present invention provides a method of expanding a string of one or more digits to form a verbal equivalent using weighted finite state transducers. The method provides a grammatical description that expands the string into a numeric concept represented by a sum of powers of a base number system, compiles the grammatical description into a first weighted finite state transducer, provides a language specific grammatical description for verbally expressing the numeric concept, compiles the language specific grammatical description into a second weighted finite state transducer, composes the first and second finite state transducers to form a third weighted finite state transducer from which the verbal equivalent of the string can be synthesized, and synthesizes the verbal equivalent from the third weighted finite state transducer.

Inventors

  • 👤 Fernando Carlos Neves Pereira
  • 👤 Michael Dennis Riley
  • 👤 Richard William Sproat

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 09:56
CPC Classifications
G; G10; G10L; G10L13/00; G10L13/08

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 116 words
A method of expanding a string of one or more digits to form a verbal equivalent, the method comprising the steps of: (a) providing a grammatical description that expands the string into a numeric concept represented by a sum of powers of a base number system; (b) compiling said grammatical description into a first weighted finite state transducer (WFST); (c) providing a language specific grammatical description for verbally expressing the numeric concept; (d) compiling the language specific grammatical description into a second WFST; (e) composing said first and second WFSTs to form a third WFST from which the verbal equivalent of the string can be synthesized; and (f) synthesizing the verbal equivalent from the third WFST.
Claim 2
Independent Claim 116 words
A method of expanding a string of one or more digits to form a verbal equivalent, the method comprising the steps of: (a) providing a grammatical description that expands the string into a numeric concept represented by a sum of powers of a base number system; (b) compiling said grammatical description into a first weighted finite state transducer (WFST); (c) providing a language specific grammatical description for verbally expressing the numeric concept; (d) compiling the language specific grammatical description into a second WFST; (e) composing said first and second WFSTs to form a third WFST from which the verbal equivalent of the string can be synthesized; and (f) synthesizing the verbal equivalent from the third WFST.

References Cited (Backward Citations)

US5353336A Cited
US5634084A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2001-07-13 2002-01-12 2002-07-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2005-07-13 2006-01-12 2006-07-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2009-07-13 2010-01-12 2010-07-14 $7700.00 Window Closed / Lapsed

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