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:
Sep. 14, 1999
Filed:
May. 05, 1998
Applicant:
Inventors:
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340575 ; 180272 ; 340576 ; 3406915 ; 340692 ;
Abstract
A wake-up device includes at least one sound source for use in a wake-up action. A speaker unit converts electric signals from the at least one sound source into sound signals. A signal processor changes the condition of electric signals from the at least one sound source. A random number generator generates a random number. A controller performs sound source selection in accordance with the random number generated by the random number generator, and/or changes the conditions of electric signals from the at least one sound source by means of the signal processor.