Patent application number | Description | Published |
20090146958 | Ergonomic Hand-Held Text Input Device - A hand-held text input device includes a game controller and a keyboard. The device comfortably accommodates the hands of a user while the thumbs and fingers are associated with actuators of the game controller and keys of the keyboard. The overall configuration of the device and the arrangement of the actuators and keys permit the user to operate all of the functions provided by the device while the forearms are in a neutral posture zone between pronation and supination of the forearm, while the wrists are minimally extended, and while the fingers are comfortably flexed. | 06-11-2009 |
20110178798 | ADAPTIVE AMBIENT SOUND SUPPRESSION AND SPEECH TRACKING - A device for suppressing ambient sounds from speech received by a microphone array is provided. One embodiment of the device comprises a microphone array, a processor, an analog-to-digital converter, and memory comprising instructions stored therein that are executable by the processor. The instructions stored in the memory are configured to receive a plurality of digital sound signals, each digital sound signal based on an analog sound signal originating at the microphone array, receive a multi-channel speaker signal, generate a monophonic approximation signal of the multi-channel speaker signal, apply a linear acoustic echo canceller to suppress a first ambient sound portion of each digital sound signal, generate a combined directionally-adaptive sound signal from a combination of each digital sound signal by a combination of time-invariant and adaptive beamforming techniques, and apply one or more nonlinear noise suppression techniques to suppress a second ambient sound portion of the combined directionally-adaptive sound signal. | 07-21-2011 |
20120245933 | ADAPTIVE AMBIENT SOUND SUPPRESSION AND SPEECH TRACKING - A device for suppressing ambient sounds from speech received by a microphone array is provided. One embodiment of the device comprises a microphone array, a processor, an analog-to-digital converter, and memory comprising instructions stored therein that are executable by the processor. The instructions stored in the memory are configured to receive a plurality of digital sound signals, each digital sound signal based on an analog sound signal originating at the microphone array, receive a multi-channel speaker signal, generate a monophonic approximation signal of the multi-channel speaker signal, apply a linear acoustic echo canceller to suppress a first ambient sound portion of each digital sound signal, generate a combined directionally-adaptive sound signal from a combination of each digital sound signal by a combination of time-invariant and adaptive beamforming techniques, and apply one or more nonlinear noise suppression techniques to suppress a second ambient sound portion of the combined directionally-adaptive sound signal. | 09-27-2012 |