Plantronics, Inc.

Alan Grattan

Jacob T Meyberg

Gary T Brint

Eric R Bradford

Edward O Sanderson

Benjamin D Gannon

Ruperto Navarro

William F Fabry

Methods and apparatuses for reduced microphone handling noise are disclosed. In one example, a microphone system includes a microphone to output a microphone output signal and a sensor adapted to output a sensor signal indicating whether the sensor is in proximity to or touching a user finger. A processor is adapted to process the microphone output signal using touch mode signal processing responsive to a determination the sensor is in proximity to or touching the user finger.

Reduced microphone handling noise

A sound delivery device is provided which includes a headband having a first end and a second end, and an earpiece and a speaker are mounted adjacent the first end of the headband. The earpiece is constructed and arranged to be rotatable with respect to the speaker to optimize comfort, fit, and performance. The earpiece can include a cylindrical section constructed and arranged to cooperate with a spherical section of a joint, and arranged to be rotatable with respect to the joint.

Headset with rotatable earpiece

The present invention provides a communications headset. The communications headset includes an earbud with a speaker to be disposed near the ear of a headset user, a microphone, and an electrical connector designed to couple with a communications device. An electrical cord is coupled between the earbud and the electrical connector. A spring cord is coupled between the earbud and the microphone. The microphone is capable of bidirectional movement with associated extension and retraction of the spring cord.

Headset with spring loaded microphone

The present invention provides a solution to the needs described above through a microphone PCB with an integrated filter. The invention provides for an electret microphone assembly. The microphone assembly includes a multilayer printed circuit board. A field effect transistor with a gate is coupled to the electret microphone. The field effect transistor drain is coupled to provide audio frequency output to an audio output node, and the field effect transistor source is coupled to a ground. A first end of a resistor is coupled to the drain of the field effect transistor and the second end is coupled to a filter. The filter attenuates unwanted electromagnetic interference associated with a radio frequency transmitter. The filter includes a filter capacitor made of a ground layer coupled to ground within the multilayer printed circuit board, an active layer within the multilayer printed circuit board coupled to the second end of the resistor, and a dielectric layer disposed between the ground layer and the active layer. The filter further includes a first and second inductor comprising vias coupled to the active layer within the printed circuit board.

Microphone PCB with integrated filter

Cable winding devices and mechanisms for providing direct cable to electrical component connections without brush contacts are disclosed. Electronic controls may be provided directly on the cable winding device. The cable winding device generally includes two cable segments physically disconnected from each other, a spool configured for winding the cable segments thereon, and a circuit component such as a printed circuit board assembly that rotates with the spool. The circuit component may include electrical contacts to electronically connect corresponding pairs of wires of the cable segments and a user-adjustable or user-actuatable electronic control in communication with the electrical contacts. The circuit component may provide a pair of electrical contacts for each corresponding pair of wires in the cable segments and the electronic control is in communication with at least one pair of the electrical contacts. The cable segments form a continuous electrical path through a circuit component with electronic controls.

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Santa Cruz, CA, United States of America

Alan Grattan