Abstract:
A portable electronic device including a proximity sensing device having an emitter and a detector. The electronic device further including a housing for containing the proximity sensing device which includes an optical interface forming a face of the housing through which radiation between the emitter and the detector pass. The optical interface may include an oleophobic coating which is selectively modified such that optical interference from an optical interface near-field object on the proximity sensing device is reduced without reducing a sensitivity of the proximity sensing device to a target near-field object.
Abstract:
A haptic actuator may include a housing, a stator coupled to a medial interior portion of the housing, and a field member within the housing and having an opening receiving the stator therein. The field member may include a frame, and at least one permanent magnet carried by the frame. The at least one permanent magnet may include side-by-side magnetic segments having alternating magnetic polarizations with at least one non-vertical magnetic polarization transition zone between adjacent magnetic segments.
Abstract:
A haptic actuator may include a housing having opposing first and second ends and first and second coils carried by the housing adjacent respective first and second ends thereof. Each coil may have a respective passageway therethrough. The actuator may include a field member including first and second masses adjacent respective first and second ends of the housing, and a permanent magnet having first and second ends coupled to respective ones of the first and second masses. The actuator may also include first and second flexures mounting respective first and second masses to the respective first and second ends of the housing so that the field member is reciprocally movable within the passageways of the coils responsive to powering the coils and so that the ends of the permanent magnet are within respective passageways of the coils when the coils are unpowered.
Abstract:
A wearable electronic device has a processing unit and a health sensor included in a housing, a band operable to couple the housing to a body part of a user, and a tightness sensor coupled to the band. The tightness sensor is operable to produce a signal indicative of a tightness of the band on the user's body part. The processing unit determines a tightness of the band based on the signal and perform one or more actions based thereon. Such actions may include evaluating the signal for changes in the tightness of the band according to operational tolerances of the health sensor, providing output directing the user to adjust the band to improve operation of the health sensor, monitoring changes in the tightness of the band and adjusting a measurement obtained by the health sensor, and so on.
Abstract:
A wearable electronic device has a processing unit and a health sensor included in a housing, a band operable to couple the housing to a body part of a user, and a tightness sensor coupled to the band. The tightness sensor is operable to produce a signal indicative of a tightness of the band on the user's body part. The processing unit determines a tightness of the band based on the signal and perform one or more actions based thereon. Such actions may include evaluating the signal for changes in the tightness of the band according to operational tolerances of the health sensor, providing output directing the user to adjust the band to improve operation of the health sensor, monitoring changes in the tightness of the band and adjusting a measurement obtained by the health sensor, and so on.
Abstract:
An environmental seal is formed around a square sensor disposed beneath a circular button cap within a button assembly. The button assembly includes shelf portions each extending separately into the interior of the assembly from a sidewall of the assembly. Portions of the sidewall are exposed between the shelf portions large enough to permit the four corners of the square sensor to contact the sidewall. The button cap is set above the sensor, resting upon the shelf portions. A first sealant bonds the top faces of the shelf portions to the bottom of the button cap. A second sealant bonds the edges of the sidewall to the corners of the sensor. The second sealant interfaces with the first sealant to form a complete environmental seal.
Abstract:
A tactile switch assembly can include a tactile switch structure electrically connected to one end of a flexible circuit. The tactile switch assembly has a first length when the flexible circuit is in an unfolded state and a smaller second length when the flexible circuit is in a folded state. The flexible circuit folds over itself one or more times in the folded state. The tactile switch structure can include a stiffener positioned over a switch. The flexible circuit can extend over at least a portion of a top surface of the stiffener and wrap around the stiffener at a bend region and extend under at least a portion of a bottom surface of the stiffener. One or more component chambers can be created in openings in the stiffener that provide additional locations for one or more electrical components to be electrically connected to the flexible circuit.
Abstract:
A wearable electronic device has a processing unit and a health sensor included in a housing, a band operable to couple the housing to a body part of a user, and a tightness sensor coupled to the band. The tightness sensor is operable to produce a signal indicative of a tightness of the band on the user's body part. The processing unit determines a tightness of the band based on the signal and perform one or more actions based thereon. Such actions may include evaluating the signal for changes in the tightness of the band according to operational tolerances of the health sensor, providing output directing the user to adjust the band to improve operation of the health sensor, monitoring changes in the tightness of the band and adjusting a measurement obtained by the health sensor, and so on.
Abstract:
A haptic actuator may include a housing, and a stator fixed to a medial interior portion of the housing. The haptic actuator may also include a field member having an opening receiving the stator therein. The field member may include a frame and at least one permanent magnet carried by the frame. The haptic actuator may also include at least one flexure coupled between an end of the frame and adjacent interior portions of the housing to permit reciprocal movement of the field member within the housing responsive to the stator.
Abstract:
A haptic engine for measuring displacement of the haptic engine's mass uses a single sensing magnet that is carried by the mass along a driving direction. The haptic engine further uses two or more Hall-effect sensors, which are spaced apart (i) from each other along a direction parallel to the driving direction and (ii) from the single sensing magnet along a direction orthogonal to the driving direction, and are disposed adjacent to an ASIC that receives the sensors' output.