Selective call receiver having a variable frequency vibrator

Details Selective call receiver having a variable frequency vibrator Selective call receiver having a variable frequency vibrator

1992-06-08

1994-03-08

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

34082544, H04Q 700

Patent

active

052931617

ABSTRACT:
A selective call receiver (100) comprises a receiver (104) for receiving a message and a vibrator (116) capable of vibrating at a selected one of at least two selectable frequencies for alerting a user of a received message. The vibrator (116) also has a selector (120) or a tuning element (130) for varying the frequency of the vibrator (116).

REFERENCES:
patent: 3623064 (1971-11-01), Kagan
patent: 4233679 (1980-11-01), Schwarzschild
patent: 4352091 (1982-09-01), Yamasaki
patent: 4576484 (1986-03-01), Grossmeyer
patent: 4731603 (1988-03-01), McRae et al.
patent: 4755816 (1988-07-01), DeLuca
patent: 4786902 (1988-11-01), Davis et al.
patent: 4868561 (1989-09-01), Davis
patent: 4962545 (1990-10-01), Klaczak et al.
patent: 5172092 (1992-12-01), Nguyen et al.

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