The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 2001
Filed:
Dec. 20, 1999
Toshihide Hamaguchi, Higashiosaka, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A notifying device adapted to give notification with both sound and vibration includes a notifying unit,which comprises a first vibrator drivable at an audio-frequency with a first drive signal for producing sound waves, and a second vibrator drivable with a second drive signal at a frequency, up to several hundred of hertz, lower than the driving frequency of the first vibrator for producing a perceivable vibration. A notifying signal generating circuit,is connected to the unit,via a switch,The circuit,comprises a sound signal generating circuit,for producing an intermittent first signal repeating on and off states with a predetermined period, a vibration signal generating circuit,for producing an intermittent second signal repeating on and off states with the same period as the first drive signal, and a synchronization circuit,for causing the respective circuits,to produce the first drive signal and the second drive signal without any overlap between the on periods of these signals. This construction obviates marked increases in the power consumption of the device.