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.
Type:
Grant
Filed:
April 14, 2023
Date of Patent:
June 25, 2024
Assignee:
Logitech Europe S.A.
Inventors:
Aron Michael Rosenberg, Darrell Hayes, Matthew Fumio Yamamoto, Tyler Copeland Barkley
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.
Type:
Grant
Filed:
July 1, 2022
Date of Patent:
June 11, 2024
Assignee:
LOGITECH EUROPE S.A.
Inventors:
Thomas Maneri, Sean Elliot Kaiser, Lev Sokolov, Ashray Sameer Urs
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.
Type:
Grant
Filed:
September 30, 2022
Date of Patent:
June 4, 2024
Assignee:
Logitech Europe S.A.
Inventors:
Laurent Plancherel, Thomas Marriott-Dodington
Abstract: The disclosure generally relates to generating lighting in an efficient way while in the outdoors. The designs are meant to maximize the amount of light generated, by the smallest assembly that is rugged to use in general outdoor activities and water sports. Further designs are related to hands-free mounting capabilities on outdoor equipment such as bikes, surfboards, snowboards and other similar equipment. Additional features include various filters, waterproofing, recharging or lighting differences which provide greater visual or photographic advantages to the user.
Type:
Grant
Filed:
October 13, 2017
Date of Patent:
May 21, 2024
Assignee:
LOGITECH EUROPE S.A.
Inventors:
Wei Cao, Simon Shi, Yoy Dai, Scott Gant
Abstract: A computer mouse comprising a scroll wheel, a braking system operable to provide a braking force on the scroll wheel, and a sensor system operable to detect a force or motion of the scroll wheel in the first and second directions. In response to receiving a control signal to stop rotation of the scroll wheel in the first direction, the braking system applies the braking force on the scroll wheel when the sensor indicates that the force or motion of the scroll wheel is in the first direction and removes the braking force when the sensor indicates that the force or motion of the scroll wheel is in the second direction.
Abstract: An optical sensor system that uses focused (not collimated) light optics and produces effective tracking on a variety of surfaces while having looser manufacturing and/or operational tolerances than prior focused optics systems. Embodiments provide an optical sensor system for a mouse moveable on a surface. An LED and a light sensor are coupled to a substrate. An illumination lens directs light at a first angle to the surface, with the light focused on a focal point below the surface. An imaging lens focuses light reflected at an angle generally equal to the first angle on the light sensor. The focal point is sufficiently below the surface so that that the diameter of a produced spot of light on the surface is more than 40% larger than a field of view (FOV) of the light sensor, and less than 400% larger than the FOV of the light sensor.
Inventors:
Vadim Kogan, Damien O'Sullivan, Doug Ebert, David Muñiz, Nicholas Anthony Ross, Kevin Alan Clarridge, Kari Lee Erkkila, Christopher Matthew Krako, Elle Suzanne Stapleton, Jesse Richard Peck