Communications: electrical – Tactual indication
Patent
1995-09-25
1997-10-28
Hofsass, Jeffery
Communications: electrical
Tactual indication
34082546, 310 29, H04B 336
Patent
active
056821328
ABSTRACT:
A vibrating module for generating a mainly non-audible alert signal comprises a vibrating mass supported by at least one spring and having a weight and a magnet. A drive coil is supported by a coil frame for placing the vibrating mass in a continuous reciprocating motion close to a resonant frequency determined by the vibrating mass and the spring. An electrical signal supplying device supplies an electrical signal to the drive coil to vibrate the vibrating mass in a linear reciprocating motion. A vibration transmitting device transmits the vibration of the vibrating mass via the spring to an outer portion of the vibrating module to generate a mainly non-audible alert signal.
REFERENCES:
patent: 5023504 (1991-06-01), Mooney et al.
patent: 5107155 (1992-04-01), Yamaguchi
patent: 5107540 (1992-04-01), Mooney et al.
patent: 5189751 (1993-03-01), Giuliani et al.
patent: 5327120 (1994-07-01), McKee et al.
patent: 5436622 (1995-07-01), Gutman et al.
Hayashizaki Shinichi
Hiroyoshi Hidetoshi
Kimura Reiko
Nakamura Yoshibumi
Ono Yoshietsu
Edwards, Jr. Timothy
Hofsass Jeffery
Seiko Instruments Inc.
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