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Synthesis unit selection apparatus and method, and storage medium

  • US 6,980,955 B2
  • Filed: 03/28/2001
  • Issued: 12/27/2005
  • Est. Priority Date: 03/31/2000
  • Status: Expired due to Fees
First Claim
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1. A synthesis unit selection apparatus comprising:

  • obtaining means for obtaining a string of synthesis units to one or more orders, which satisfies received strings, based upon a minimum distortion standard, wherein the string of synthesis units is obtained by concatenating stored synthesis units, and the minimum distortion standard determines an order of distortion values that are produced upon obtaining the string of synthesis units from the stored synthesis units; and

    selection means for selecting a synthesis unit to be stored in a memory based on the string of synthesis units obtained by said obtaining means, wherein at least one of a concatenation distortion and a modification distortion is produced, the concatenation distortion being produced upon concatenating a synthesis unit to another synthesis unit, and the modification distortion being produced upon modifying a synthesis unit, and wherein said obtaining means determines the modification distortion by looking up a table that stores the modification distortion.

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