Head set speaker and stereo playing device

Details Head set speaker and stereo playing device Head set speaker and stereo playing device

2000-09-06

2008-09-16

Le, Huyen (Department: 2643)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Plural or compound reproducers

C381S371000, C381S160000, C381S352000

Reexamination Certificate

active

07426282

ABSTRACT:
A head set speaker and stereo radio playing device exhibits improved harmonics and acoustic fidelity. A resilient and flexible headpiece is sized to fit behind the head of the user. Right and left device enclosures are carried by the ends of the headpiece, and are aerodynamic shaped to minimize wind whistle which may result when the head set is worn while moving rapidly. Right and left behind the ear flanges extend downwardly from a position adjacent to the ends of the headpiece, and aid in the positioning of the right and left ear device enclosures. In a typical application, the device enclosures are positioned immediately forward of the user's ears, allowing ambient sound to be heard. A speaker assembly and a removable battery assembly are carried within each device enclosure. The speakers are oriented within the device enclosures with the speaker magnet directed to, and in contact with, the head of the listener. This achieves two interrelated and significant structural and electronic advantages. First, sound fidelity is improved by using sound reflecting walls and baffles to redirect the sound. And second, antenna functionality is improved by attaching an antenna input to the speaker magnet which is in contact with the listener's skin, and there by connecting the listener's body to the antenna. A charging unit is sized to receive both battery assemblies simultaneously. A circuit card carried within one of the device enclosures contains a stereo radio circuit. On/off, volume up, volume down, scan and reset buttons carried by the device enclosures are in electrical communication with the circuit card, and allow control over radio functionality.

REFERENCES:
patent: 4668842 (1987-05-01), Yokoyama et al.
patent: 5459790 (1995-10-01), Scofield et al.
patent: 5617477 (1997-04-01), Boyden
patent: 5781638 (1998-07-01), Hosaka et al.
patent: 6134336 (2000-10-01), Clark
patent: 6385325 (2002-05-01), Nageno et al.

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