Patent ID: 6281785
Filing Date: 2001-08-28
Classification: G08B

Abstract:
A notifying vibration generator device comprising:a vibration generator having a magnetic circuit composed of a permanent magnet and a coil;a first vibrator drivable by the magnetic circuit and mechanically resonating at a frequency of f0;a second vibrator mechanically resonating at a frequency of f1;a rectangular wave generating circuit for generating a rectangular wave signal having frequency of f0;a filter having a cut-off frequency between f0 and f1 for receiving the signal output from the rectangular wave generating circuit and outputting a first signal;a second signal generating circuit for generating a second signal containing a signal with the frequency of f1; andswitch means for selectively applying, one of the first signal and the second signal to the vibration genaerator,wherein the first signal and the second signal are different rectangular wave signals and the rectangular wave signal for the second signal has a quiescent period and an active period which are set at values for a desired ringer sound.