Watch with invisible speaker

Details Watch with invisible speaker Watch with invisible speaker

1997-10-17

1999-02-02

Miska, Vit

Horology: time measuring systems or devices

Chronological

With simultaneous time indicating means

368 88, 368250, G04C 2116, G04B 3700

Patent

active

058674527

ABSTRACT:
A watch case for a digital or analog watch assembly. The watch case includes a body, a time display element, an electronic speaker unit for generating musical or other acoustical sounds, and an aperture formed in the body which communicates with the speaker. Significantly, the aperture is sized so that the quality sound (e.g., music and voices) emitted therethrough from said speaker unit is clearer and more understandable than has been available heretofore.

REFERENCES:
patent: 3577876 (1971-05-01), Spadini
patent: 3875738 (1975-04-01), Khikawa et al.
patent: 4250573 (1981-02-01), Saito
patent: 4258432 (1981-03-01), Zafferri et al.
patent: 4271498 (1981-06-01), Zafferri et al.
patent: 4330878 (1982-05-01), Nakamura
patent: 4374624 (1983-02-01), Murata
patent: 4391532 (1983-07-01), Hara
patent: 4918674 (1990-04-01), Shimozono et al.
patent: 5050138 (1991-09-01), Yamada et al.
patent: 5440526 (1995-08-01), Pierce et al.

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