Accesso Technology Group Plc

Bose Corporation

Carl Clement

Daniel Luke Coveney

Sebastian Hinds

Emiliano Mezzarobba

Arun Venkatasubramanian

Mohammed Alexander Shalaby

Arpan Pal

Hallam Collings

Hallam Arthur William Collings

Pablo Fernandez Medina

An electrically small antenna operable in both single-ended and differential antenna systems, and corresponding circuitry configurations, is provided. The antenna may be arranged on or in a wearable audio device, such as an earbud. The antenna may include a first curved arm electrically coupled to a first port. The antenna may include a second curved arm of equal size and equal shape as the first curved arm and electrically coupled to a second port. The second curved arm may be rotationally positioned 180 degrees, relative to the first curved arm, about an imaginary axis perpendicular to a surface of the wearable audio device. The single-ended antenna system may include a radio frequency integrated circuit ('RFIC'), fixed matching network, a tuneable capacitor, and a switching circuit. The differential antenna system may include an RFIC, fixed matching network, a tuneable capacitor, and a balun.

Antenna operable in single-ended and differential modes

A wrist strap which comprises a first portion defining a first end of the wrist strap, and a second portion defining a second end of the wrist strap. The wrist strap further comprises an aperture located in the first portion, through which the second end of the strap is passable to define an overlapping region in which a part of the first portion and the second portion of the wrist strap overlap. A first L-shaped peg is located in one portion of the first and second portions, and a first hole in the strap located in the other portion of the first and second portions. A second L-shaped peg is located in the other portion of the first and second portions, and a second hole in the strap located in the one portion.

Wrist strap

Growing community of inventors

Norwich, United Kingdom

Carl Clement