1
Vassilios Digalakis, Leonardo Neumeyer, Dimitry Rtischev: Method and apparatus for speech recognition adapted to an individual speaker. SRI International, Townsend and Townsend and Crew, January 26, 1999: US05864810 (102 worldwide citation)

A method and apparatus for automatic recognition of speech adapts to a particular speaker by using adaptation data to develop a transformation through which speaker independent models are transformed into speaker adapted models. The speaker adapted models are then used for speaker recognition and ac ...


2
Leonardo Neumeyer, Horacio Franco, Mitchel Weintraub, Patti Price, Vassilios Digalakis: Method and apparatus for automatic text-independent grading of pronunciation for language instruction. SRI International, Kenneth R Allen, Townsend and Townsend and Crew, April 25, 2000: US06055498 (57 worldwide citation)

Pronunciation quality is automatically evaluated for an utterance of speech based on one or more pronunciation scores. One type of pronunciation score is based on duration of acoustic units. Examples of acoustic units include phones and syllables. Another type of pronunciation score is based on a po ...


3
Vassilios Digalakis, Leonardo Neumeyer, Stavros Tsakalidis, Manolis Perakakis: Method and apparatus for automatic recognition using features encoded with product-space vector quantization. SRI International, Kenneth R Allen, Townsend and Townsend and Crew, July 3, 2001: US06256607 (47 worldwide citation)

An automatic recognition system and method divides observation vectors into subvectors and determines a quantization index for the subvectors. Subvector indices can then be transmitted or otherwise stored and used to perform recognition. In a further embodiment, recognition probabilities are determi ...


4
Leonardo Neumeyer, Horacio Franco, Mitchel Weintraub, Patti Price, Vassilios Digalakis: Method and system for automatic text-independent grading of pronunciation for language instruction. SRI International, Kenneth R Allen, Townsend and Townsend and Crew, May 1, 2001: US06226611 (31 worldwide citation)

Pronunciation quality is automatically evaluated for an utterance of speech based on one or more pronunciation scores. One type of pronunciation score is based on duration of acoustic units. Examples of acoustic units include phones and syllables. Another type of pronunciation score is based on a po ...


5
Dimitry Rtischev, Philip L Hubbard, Leonardo Neumeyer, Kaori Shibatani: Method and apparatus for language training. Minds and Technologies, Townsend & Townsend & Crew, October 16, 2001: US06302695 (26 worldwide citation)

A method for language fluency training on a computer system having an audio output device includes invoking a web browser program, receiving a pre-recorded file including a message in a spoken language from a conversation partner, playing the message to a user seeking fluency training in the spoken ...


6
Leonardo Neumeyer, Dimitry Rtischev, Diego Doval, Juan Gargiulo: Centralized processing of digital speech data originated at the network clients of a set of servers. Minds and Technology, Marcel K Bingham, Hickman Palermo Truong & Becker, July 6, 2004: US06760697 (24 worldwide citation)

Described herein is a system that enables service provider's to integrate speech functionality into their applications. A service provider maintains a set of application servers. To provide a particular speech service to a client of the application server, the application server causes the clie ...


7
John W Butzberger, Horacio E Franco, Leonardo Neumeyer, Jing Zheng: Method of dynamically altering grammars in a memory efficient speech recognition system. SRI International, Kin Wah Tong Esq, Patterson & Sheridan, January 29, 2008: US07324945 (7 worldwide citation)

A method of speech recognition that uses hierarchical data structures that include a top level grammar and various related subgrammars, such as word, phone, and state subgrammars. A speech signal is acquired, and a probabilistic search is performed using the speech signal as an input, and using the ...


8
Dimitry Rtischev, Philip L Hubbard, Leonardo Neumeyer, Kaori Shibatani: Method and apparatus for fluency language training. Minds and Technology, Townsend And Townsend And Crew, June 13, 2002: US20020072039-A1

A method for language fluency training on a computer system having an audio output device includes invoking a web browser program, receiving a pre-recorded file including a message in a spoken language from a conversation partner, playing the message to a user seeking fluency training in the spoken ...


9
Leonardo Neumeyer, Dimitry Rtischev, Diego Doval, Juan Gargiulo, Dylan Parker: Conducting asynchronous interviews over a network. Hickman Palermo Truong & Becker, April 4, 2002: US20020040317-A1

A method and apparatus are described for asynchronously conducting interviews though a user interface executing on a client. The user interface prompts an interviewee for at least one audio response, which is digitally recorded. User interfaces are generated by a client according to code defining th ...


10
John W Butzberger, Horacio E Franco, Leonardo Neumeyer, Jing Zheng: Method of dynamically altering grammars in a memory efficient speech recognition system. Thomason Moser & Patterson, Attorneys at Law, January 2, 2003: US20030004722-A1

A method of speech recognition that uses hierarchical data structures that include a top level grammar and various related subgrammars, such as word, phone, and state subgrammars. A speech signal is acquired, and a probabilistic search is performed using the speech signal as an input, and using the ...