Battery door

Abstract

An earcup assembly 11 for a headset 10 comprising a housing having a first side adapted to engage the head of a user when in use and a second side opposite thereto. A recess provided in the second side of the housing receives and stores a battery. A battery door 14 is arranged to slidably engage the second side of the housing such that the battery door 14 may be moved between a first, open position in which the recess is accessible to a user and a second, closed position in which the recess is covered by the battery door 14. Preferably, the earcup assembly 11 includes active noise reduction circuitry. One or a pair of such earcup assemblies 11 may be arranged to form a headset 10, wherein the assemblies 11 are coupled to a headband 12 via yokes 13.

Description

FIELD OF THE INVENTION [0001] The present invention relates to an earcup assembly for a headset and a headset incorporating such an assembly. More particularly, the invention relates to a battery door for an earcup assembly. The invention may be applied to both ear muffs or hearing protectors and headphones, especially to those provided with active noise reduction functionality. BACKGROUND [0002] Active noise reduction has been developed for use in ear muffs and headphones. Active noise reduction involves sensing background noise and playing a copy of the background noise substantially simultaneously to the original background noise. The copy of the noise is rotated to be 1800 out of phase with respect to the original background noise so that, when combined, the two signals destructively interfere. Ideally, the two signals cancel each other out. Incorporation of active noise reduction in headsets requires the addition of a power supply, which must be built in, or electrically couple...

AI Technical Summary

Benefits of technology

[0008] Preferably, the earcup assembly includes means for actively reducing background noise.

[0010] Additionally or alternatively, means may be provided for selectively retaining the battery door in the first, open position to provide for easier removal and insertion of batteries into the recess.

[0014] Preferably, the battery door is adapted to cover substantially the entire second side of the housing when in the second, closed position, but may alternatively be dimensioned to cover only a portion of the second side of the housing, said portion including at least a portion of the recess. As a further alternative, the battery door may be proportioned to protrude over one or more edges of the second side of the housing when in the closed position. Such embodiments may enable a user to more easily initiate sliding of the battery door over the surface of the second side of the housing.

[0019] The positioning of the battery door on the second side of the housing, away from the yoke, may help to reduce obstruction of the door by the yoke and also the likelihood of damage being caused to the door by the yoke (or vice versa) when the battery door is open, particularly in embodiments in which means are provided to limit the extent of rotation of an earcup assembly in a respective yoke assembly. This arrangement of the battery door may also enable access by a user to the recess via the battery door when the headset is being worn. Such embodiments may enable a user to more easily change batteries because it is not necessary to hold the headset at the same time as performing the other functions of opening the battery door and holding the batteries.

Problems solved by technology

The copy of the noise is rotated to be 1800 out of phase with respect to the original background noise so that, when combined, the two signals destructively interfere.

For example, the yoke may obstruct access to the battery door and / or obstruct access to the battery compartment after the battery door has been opened, thereby making it awkward for a user to replace a battery.

Additionally, users must remove such headsets and place them in a particular configuration to be able to access the battery, which may be difficult in particular environments where it is not possible to place the headset down, for example, on a table.

Also, where the battery door is not properly closed by a user, movement of the earcup in the yoke may be restricted and may ultimately lead to damaging of the door and / or the yoke.

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