1
Nicola R Chong White, Richard Vandervoort Cox: Enhancing speech intelligibility using variable-rate time-scale modification. AT&T, June 20, 2006: US07065485 (134 worldwide citation)

The method and preprocessor enhances the intelligibility of narrowband speech without essentially lengthening the overall time duration of the signal. Both spectral enhancements and variable-rate time-scaling procedures are implemented to improve the salience of initial consonants, particularly the ...


2
David Malah, Richard Vandervoort Cox: System for bandwidth extension of Narrow-band speech. AT&T, May 17, 2005: US06895375 (101 worldwide citation)

A system and method are disclosed for extending the bandwidth of a narrowband signal such as a speech signal. The method applies a parametric approach to bandwidth extension but does not require training. The parametric representation relates to a discrete acoustic tube model (DATM). The method comp ...


3
Richard Vandervoort Cox, Thomas M Isaacson: System and method of ubiquitous language translation for wireless devices. AT&T, September 18, 2007: US07272377 (82 worldwide citation)

A system and method of providing a location-based translation service is disclosed. A wireless device receives from a wireless network an updated priority target language list according to the location of the wireless device. The wireless device and/or wireless network are capable of automatic speec ...


4
Richard Vandervoort Cox, Thomas M Isaacson: System and method of ubiquitous language translation for wireless devices. AT&T Intellectual Property II, March 30, 2010: US07689245 (64 worldwide citation)

A system and method of providing a location-based translation service is disclosed. A wireless device receives from a wireless network an updated priority target language list according to the location of the wireless device. The wireless device and/or wireless network are capable of automatic speec ...


5
Anthony J Accardi, Richard Vandervoort Cox: Modular approach to speech enhancement with an application to speech coding. AT&T, January 30, 2001: US06182033 (40 worldwide citation)

A speech coder separates input digitized speech into component parts on an interval by interval basis. The component parts include gain components, spectrum components and excitation signal components. A set of speech enhancement systems within the speech coder processes the component parts such tha ...


6
David Malah, Richard Vandervoort Cox: System for bandwidth extension of narrow-band speech. AT&T, May 8, 2007: US07216074 (36 worldwide citation)

A system, computer-readable medium and generated signal are disclosed for extending the bandwidth of a first signal (i.e., a narrowband signal) such as a speech signal. The system produces a second signal from a first signal by computing first area coefficients from a first signal, generating second ...


7
Richard Vandervoort Cox, Bruce Lowell Hanson, Kenneth Mervin Huber, Candace Ann Kamm, Lawrence Richard Rabiner: Method and system for delivering messages to both live recipients and recording systems. AT&T, Morgan & Finnegan L, May 15, 2001: US06233319 (17 worldwide citation)

Method and system for delivering a message over a telecommunications network to a recipient comprising transmitting a message over the telecommunications network to the recipient when a predetermined energy/silence condition is detected, performing echo cancellation on a signal communicated from the ...


8
Richard Vandervoort Cox, Hossein Eslambolchi, Behzad Nadji, Mazin G Rahim: System and method for providing a natural language interface to a database. AT&T Intellectual Property II, April 5, 2011: US07921091 (16 worldwide citation)

A system and method for providing a natural language interface to a database or the Internet. The method provides a response from a database to a natural language query. The method comprises receiving a user query, extracting key data from the user query, submitting the extracted key data to a data ...


9
Lee Begeja, Richard Vandervoort Cox, Harris Drucker, David Crawford Gibbon, Allen Louis Gorin, Patrick Guy Haffner, Steven H Lewis, Zhu Liu, Mazin G Rahim, Bernard S Renger, Behzad Shahraray: Systems and methods for monitoring speech data labelers. AT&T, October 9, 2007: US07280965 (14 worldwide citation)

Systems and methods for monitoring labelers of speech data. To test or train labelers, a labeler is presented with utterances that have already been identified as belonging to a particular class or call type. The labeler is asked to assign a call type to the utterances. The performance of the labele ...


10
Richard Vandervoort Cox, Rainer Martin: Speech enhancement with gain limitations based on speech activity. AT&T, August 5, 2003: US06604071 (14 worldwide citation)

An apparatus and method for data processing that improves estimation of spectral parameters of speech data and reduces algorithmic delay in a data coding operation. Estimation of spectral parameters is improved by adaptively adjusting a gain function used to enhance data based on whether the data co ...