Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent
1987-10-19
1989-09-26
Shoop, Jr., William M.
Electrical audio signal processing systems and devices
One-way audio signal program distribution
Public address system
379355, G10L 506
Patent
active
048706868
ABSTRACT:
A user-interactive speech recognition control system is disclosed for recognizing a complete sequence of keywords (e.g., a telephone number such as 123-4567) via entering, verifying, and editing variable-length utterance strings (e.g., 1-2-3; 4-5; 6-7) separated by the user-defined placement of pauses. The device controller (120) utilizes timers (124) to monitor the pause time between partial-sequence digit strings recognized by the speech recognizer (110). When a string of digits is followed by a predetermined pause time interval, the recognized digits will be replied via the speech synthesizer (130). An additional string of digits can then be entered, and only the subsequent string will be replied after the next pause. Furthermore, the user has the flexibility to correct only the last digit string entered, or the entire sequence. Hence, if there is an error in only one digit, the erroneous digit string can be corrected without having to re-enter the entire digit sequence. The invention is well-suited to be used in a hands-free voice command dialing system for a mobile radiotelephone, wherein vehicular background noise may affect recognition accuracy.
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Gerson Ira A.
Lindsley Brett L.
Hoff Marc S.
Motorola Inc.
Shoop Jr. William M.
Southard Donald B.
Warren Charles L.
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