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:
Apr. 17, 2001
Filed:
Jun. 09, 2000
Wen-Hsien Lin, Taipei, TW;
Other;
Abstract
An anti-burglar alarming door bell is disclosed, and in particular, a door bell having dual wires non-polar, with anti-burglar and alarming function. The door bell comprises a detecting mechanism, a door bell/anti-burglar mode selection, a first voicing mechanism, a second voicing mechanism, a micro-computer controlled switch circuit and an alarming activation mechanism having a first indication mechanism and a second mechanism and a press button. The microcomputer receives triggered signals from the detecting mechanism (such as magnetic-spring switch or infrared detecting device) to cause the voicing mechanism to produce a sound. By means of the switching circuit, the first indication mechanism or the second indication mechanism of the alarming activation mechanism is lighted. The microcomputer causes different indication mechanisms to light and causes different voicing mechanisms to produce a sound via the alarming activation mechanism with respect to the detected status by the detecting mechanism and the door bell/anti-burglar mode selection.