Telephone-based speech recognition for data collection

US6101241A · kind A · utility

Assignee

• AT&T CORP. · US

Inventors

• Susan Boyce · Rumson, US
• Lynne Shapiro Brotman · Westfield, US
• Deborah W. Brown · Manalapan, US
• Randy G. Goldberg · Princeton, US
• Edward Dennis Haszto · Berkeley Heights, US
• Stephen Michael Marcus · Eindhoven, NL
• Richard R. Rosinski · Middletown, US
• William R. Wetzel · Little Silver, US

Key dates

• Filing date: Jul 16, 1997
• Grant date: Aug 8, 2000
• Expiry date: Jul 16, 2017

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04M2201/40
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A production script for interactions between participants and an automated data collection system is created by selectively tuning an experimental script through successive trials until a recognition rate of the system is at least an acceptability threshold. The data collection system uses a semi-constrained grammar, which is a practical accommodation of a larger range of possible inputs than a menu. The data collection system collects data by recognizing utterances from participants in accordance with the production script.