Abstract: A peripheral device may include a body. The device may include a scroll wheel rotatably coupled with the body. The scroll wheel may include a ferromagnetic rotor. The rotor may be generally annular and may define an open interior. The rotor may define a first plurality of teeth arranged about a periphery of the open interior. The device may include a stator disposed within the open interior. The stator may define a second plurality of teeth that are alignable with the first plurality of teeth. The stator may include a plurality of electro-permanent magnets. Each of the electro-permanent magnets may be disposed within a conductive coil. The device may include a position sensor that is configured to detect an angular position of the rotor. The device may include control circuitry that controls delivery of current to the electro-permanent magnets of the stator to controls a speed of the scroll wheel.

Abstract: A microphone system includes a microphone and a pre-amplification conditioning circuit configured within a housing and comprising a pair of matched JFETs configured in a differential pair with common-source configuration and, when biased, are operable to receive and amplify the differential microphone output signal. The microphone further includes a pair of BJTs configured as a complimentary feedback transistor pair with each of the pair of BJTs coupled in parallel to a corresponding one of the pair of matched JFETs, and a current sink coupled to the matched JFETs and corresponding emitter electrodes of the BJTs and operable to maintain a fixed total direct current through each of the matched JFETs and BJTs, which reduces the JFETs corresponding electrical load, reduces signal noise, and increases a maximum amplified microphone output signal level at the drains of the matched JFETs.

Abstract: Embodiments herein provide for methods of dividing selected areas of a first video clip having a first composition, e.g., by generating individual video data corresponding to the selected areas, arranging the selected areas to provide a second composition, e.g., by combining the individual video data to generate composite video data corresponding to the second composition, and compiling the composite video data to provide a second video clip having the second composition.

Abstract: A method comprises: determining whether an external wireless power (EWP) source is coupled to an interface configured to transfer power from the EWP source to the power management (PM) system; selecting the EWP to power the computer mouse when the EWP source is electrically couples and provides power to the interface; determining whether a fixed internal power source (PS) is coupled to the PM system; selecting a fixed internal PS to power the computer mouse when the fixed internal PS is coupled to the PM system and the EWP source is coupled to but not providing enough power to the interface; determining whether a removeable internal PS is electrically coupled to a PM system in the computer mouse; and selecting the removeable internal PS to power the computer mouse when the removeable internal PS is electrically coupled to the PM system and the EPS is not coupled to the interface.