Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent
1986-12-18
1989-07-25
Harkcom, Gary V.
Electrical audio signal processing systems and devices
One-way audio signal program distribution
Public address system
381 43, 381 50, G10L 504, G10L 902
Patent
active
048521701
ABSTRACT:
Speech may be analyzed digitally and recognized in real time by a system which includes a spectrum analyzer which determines the frequency content of successive segments of speech. Each speech segment is logically analyzed to identify the class of phonemes of which it is a part, and then the frequency spectrum of the segment is analyzed to uniquely identify the specific phoneme within the type. Sequences of phonemes with transitions excluded can then be compactly stored, transmitted to remote locations, synthesized into voice and translated logically into English or other natural language.
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patent: 3846586 (1974-11-01), Griggs
patent: 4661915 (1987-04-01), Ott
James L. Flanagan, Speech Analysis Synthesis and Perception, Second Edition, 1972, pp. 69-72 and 140-149.
C. C. Tappert, "A Preliminary Investigation of Adaptive Control in the Interaction between Segmentation and Segment Classification in Automatic Recognition of Continuous Speech", IEEE Trans. on Systems, Man, and Cybernetics, Jan. 1972, vol. SMC-2, No. 1, pp. 66-72.
F. Jelinek, "Continuous Speech Recognition by Statistical Methods", IEEE Proceedings, vol. 64, No. 4, Apr. 1976, pp. 532-556.
Itahashi et al., "Discrete-Word Recognition Utilizing a Word Dictionary and Phonological Rules", IEEE Trans. on Audio and Electroacoustics, vol. AU-21, No. 3, Jun. 1973, pp. 239-249.
Harkcom Gary V.
Knepper David D.
R & D Associates
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