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:
Nov. 05, 2002
Filed:
Jun. 25, 1999
Star Micronics Co.,Ltd., Shizuoka, JP;
Abstract
Upon receipt of a direction indication control signal s , a sounding-body driving circuit generates a driving signal s for generating a flashing operation sound which is an artificial striking sound similar to a striking sound of a mechanical relay. The driving signal s is output to a speaker via an amplifier , and the flashing operation sound is outputted from the speaker , thereby obtaining the flashing operation sound which does not sound unusual to the driver. The sounding-body driving circuit enables a plurality of rectangular wave signals having the same amplitude and different frequencies to be synthesized in sequence of time by first and second synthetic signal generating circuits A and B to thus generate first and second synthetic signals s and s as artificial striking sounds.