Abstract:
An earpiece (100) and a method (640) for acoustic management of multiple microphones is provided. The method can include capturing an ambient acoustic signal from an Ambient Sound Microphone (ASM) to produce an electronic ambient signal, capturing in an ear canal an internal sound from an Ear Canal Microphone (ECM) to produce an electronic internal signal, measuring a background noise signal, and mixing the electronic ambient signal with the electronic internal signal in a ratio dependent on the background noise signal to produce a mixed signal. The mixing can adjust an internal gain of the electronic internal signal and an external gain of the electronic ambient signal based on the background noise characteristics. The mixing can account for an acoustic attenuation level and an audio content level of the earpiece. Other embodiments are provided.
Abstract:
A device (100) and method (300) for enhancing range detection accuracy in ultrasonic touchless sensing applications can include transmitting (302) an ultrasonic signal intended to reflect off a finger and produce an echo, receiving (304) the echo, saving (306) most recent echoes to a history (400), selectively discarding (308) echoes less recently saved in the history to produce a sparse history, identifying (310) a relative phase of the echo with respect to a previously received echo in the sparse history, tracking (312) a location and a movement of the finger from an arrival time of the echo and the relative phase, and providing (314) touchless control to a user interface control in accordance with the location and the movement of the finger.
Abstract:
An earpiece (100) and a method (640) for acoustic management of multiple microphones is provided. The method can include capturing an ambient acoustic signal from an Ambient Sound Microphone (ASM) to produce an electronic ambient signal, capturing in an ear canal an internal sound from an Ear Canal Microphone (ECM) to produce an electronic internal signal, measuring a background noise signal, and mixing the electronic ambient signal with the electronic internal signal in a ratio dependent on the background noise signal to produce a mixed signal. The mixing can adjust an internal gain of the electronic internal signal and an external gain of the electronic ambient signal based on the background noise characteristics. The mixing can account for an acoustic attenuation level and an audio content level of the earpiece.
Abstract:
Methods and devices for voice operated control are provided. The method can include measuring an ambient sound received from at least one Ambient Sound Microphone, measuring an internal sound received from at least one Ear Canal Microphone, detecting a spoken voice from a wearer of the earpiece based on an analysis of the ambient sound and the internal sound, and controlling at least one voice operation of the earpiece if the presence of spoken voice is detected. The analysis can be a sound pressure level (SPL) difference, a correlation, a coherence, or a spectral difference.
Abstract:
An Integrated Development Environment (IDE) (100) for creating a touchless Virtual User Interface (VUI) 120 is provided. The IDE can include a development window (152) for graphically presenting a visual layout of user interface (UI) components (161) that respond to touchless sensory events in a virtual layout of virtual components (261), and at least one descriptor (121) for modifying a touchless sensory attribute of a user component. The touchless sensory attribute describes how a user component responds to a touchless touchless sensory event on a virtual component.
Abstract:
A method and system (500) for generating an approximately planar sensory field (199) and confirming a presence of an object (310) in the field is provided. The system can include at least one paired receiver (121/122) and at least one transmitter (130) in a front and back orientation of a touchless sensing unit (110). The method can include detecting a movement of the object within a sensory space (176/177), estimating a phase angle of the movement; and evaluating whether the phase angle is within a predetermined range (197), and if so, confirming a presence of the object within the approximately planar sensory field.
Abstract:
A system (100) and method (400) for touchless object control is provided. The system can include a sensing unit (110) for capturing a first signal (677) reflected off a first object (151) at a first time and a second signal (679) reflected off the first object at a second time, a phase detector (116) for identifying a first phase difference (601) between the first signal and the second signal, and a processor (117) for updating an expected location of the first object using the first phase difference. A first object (143) can control a movement of a second object (124) using touchless control.
Abstract:
A device (100) and a method (200) for operating a camera (130) based on touchless movements is provided. The device (100) includes a sensing unit (110) for detecting a touchless movement, and a controller (130) for handling one or more controls of the camera in accordance with the touchless movement. A virtual user interface is provided to allow a user to control a camera on a computer or a mobile device using touchless finger movements. Touchless controls are provided for zoom, pan, focus, aperture, balance, color, calibration, or tilt. A first touchless finger movement can select a control, and a second touchless finger movement can adjust the control.
Abstract:
A method for acute sound detection and reproduction is provided that can include measuring an ambient sound level external to an ear canal at least partially occluded by the earpiece, monitoring a change in the ambient sound level for detecting an acute sound, estimating a proximity of the acute sound, and reproducing the acute sound within the ear canal responsive to detecting the acute sound and the proximity. Other embodiments are disclosed.
Abstract:
A sensor device (100) and method (300) for touchless finger signing and recognition is provided. The method can include detecting (304) a first pause of a finger in a touchless sensory space (101), tracking (306) a movement (140) of the finger, detecting (308) a second pause of the finger, creating (310) a trace (145) of the finger movement from the tracking, and recognizing (312) a pattern (146) from the trace. The pattern can be an alphanumeric character or a finger gesture. A user can accept or reject the recognized pattern via touchless finger control.