Speech recognition system

Details Speech recognition system Speech recognition system

1987-03-12

1989-10-24

Roskoski, Bernard

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

381 45, 3645135, G10L 100

Patent

active

048767204

ABSTRACT:
The invention relates to a muffler which includes a first expansion chamber, a second expansion chamber, a resonator chamber, and an inlet pipe having a first open end and a second open end. The first open end of the inlet pipe is inserted into the first expansion chamber so as to communicate with the latter. A resonator pipe runs substantially in a coaxial relationship with the inlet pipe so as to establish communication between the first expansion chamber and the resonant chamber. A return pipe is disposed between the resonator chamber and the second expansion chamber and passes through the first expansion chamber for establishing communication between the first expansion chamber and the second expansion chamber. An outlet pipe communicates with the second expansion chamber. The improvement comprises that said return pipe has an open end and is inserted with the open end into said resonator chamber, while the inserted open end thereof is sealed with a plug. A portion of the return pipe, passing through the first expansion chamber and the resonator chamber, is provided with at least a throughhole.

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patent: 4489435 (1984-12-01), Moshier
patent: 4695962 (1987-09-01), Goudie
Kaneko, T., et al., "A Hierarchical Decision Approach to Large-Vocabulary Discrete Utterance Recognition, " IEEE Trans. Acoustics, Speech, Signal Processing, vol. ASSP-31, No. 5, Oct. 1983, pp. 1061-1066.
Kaneko, T., et al., "Large Vocabulary Isolated Word Recognition with Linear and DP Matching," Proc. 1983 Spring Conf. Acoustical Soc. Japan, pp. 151-152.
Burton, D. K., et al., "A Generalization of Isolated Word Recognition Using Vector Quantization," ICASSP 83, pp. 1021-1024.
Fujisaki et al., "High-Speed Processing and Speaker Adaptation in Automatic Recognition of Spoken Words," Trans. Comm. Speech Recognition, Acoustical Soc. Japan, S80-19, Jun. 1980, pp. 148-155.
Jelinek, Frederick, "Continuous Speech Recognition by Statistical Methods," Proc. IEEE, vol. 64, No. 4, Apr. 1976, pp. 532-556.

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