Logitech Europe S.a.

Aron Michael Rosenberg

Adam Kirk Bennett

Gaurav Bradoo

Tzyy-Woei Richard Sung

Timucin Kip

Branko Lukic

James Edward Renwick

Homin Lee

Andrew Julian Gartrell

Clayton Christopher Williamson

Matthew Fumio Yamamoto

Steven Ryutaro Takayama

Giuseppe Russo

John Matthew Long

Shyue-Yang Wang

Anthony Cooper Mattana

Eric Lin

James Leigh Toggweiler

Mark Harold Burleson

Tyler Copeland Barkley

Jonathan Reckless

Jeffrey Wilson

Andrew Gartrell

Tom Harper

Nick Stoughton

Darrell Hayes

Microphone

A microphone includes a housing. The microphone includes a windscreen coupled with the housing. The windscreen and the housing define a central volume. The microphone includes an audio module within the central volume. The audio module includes a receiver capsule, a carrier unit coupled with the receiver capsule, and a counterweight coupled with the carrier unit. The microphone includes a suspension element that is coupled with the housing and carrier unit to suspend the audio module within the central volume. The suspension element includes an inner body that contacts the carrier unit. The suspension element includes first and second flanges extending outward from the inner body. The first and second flange are fixedly coupled with the housing. A cross-section of the first and second flange includes an arched region that extends at least partially to an inner wall of the housing. The arched regions are oriented in opposite directions.

Microphone suspension system

Microphone cover

Wireless microphone

Wireless microphone with a cover

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.

Pre-amplification conditioning circuit for a transducer audio device

Mobile device wireless audio link

Wireless transmission receiver

In some embodiments, a video doorbell system includes a video doorbell device on an exterior surface of a structure and a chime kit within an interior of the structure. A transformer can be coupled in-series via electrical conductors with the video doorbell device and the chime kit. The chime kit can include an energy storage device that is charged via the electrical conductors. When a user activates a button on the video doorbell device power control circuitry within the video doorbell device can transmit a signal on the electrical conductors. Button detection circuitry within the chime kit can detect the signal and respond by transferring power from the energy storage device to a chime. While the chime is activated the transformer can continuously supply the video doorbell device with power.

Doorbell system with energy storage device

Microphone stand

Growing community of inventors

Lafayette, CA, United States of America

Aron Michael Rosenberg