Texas Instruments Corporation

Yeshwant K Muthusamy

Edwin Randolph Cole

Jonathan D Courtney

Lorin Paul Netsch

Periagaram K Rajasekaran

Barbara J Wheatley

A system and method for providing a controllable virtual environment includes a computer ( ) with processor and a display coupled to the processor to display 2-D or 3-D virtual environment objects. Speech grammars are stored as attributes of the virtual environment objects. Voice commands are recognized by a speech recognizer ( ) and microphone ( ) coupled to the processor whereby the voice commands are used to manipulate the virtual environment objects on the display. The system is further made role-dependent whereby the display of virtual environment objects and grammar is dependent on the role of the user.

System and method for advanced interfaces for virtual environments

A system and method for providing a controllable virtual environment includes a computer (,) with processor and a display coupled to the processor to display 2-D or 3-D virtual environment objects. Speech grammars are stored as attributes of the virtual environment objects. Voice commands are recognized by a speech recognizer (,) and microphone (,) coupled to the processor whereby the voice commands are used to manipulate the virtual environment objects on the display. The system is further made role-dependent whereby the display of virtual environment objects and grammar is dependent on the role of the user.

This invention consists of three enhancements to HMM-based automatic language identification systems. The three enhancements are: (i) language-discriminant acoustic model training and recognition, (ii) an acoustic model pruning procedure that picks only those phonetic models which are considered useful for language identification, and (iii) a neural network-based language classification method that uses knowledge-based features derived from phone sequences output by the HMM phonetic recognizers.

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Plano, TX, United States of America

Yeshwant K Muthusamy