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:
Oct. 20, 2009
Filed:
Dec. 05, 2005
Daniel Weng, Taipei Hsien, TW;
Chang-yuan Chan, Taipei Hsien, TW;
Mars Su, Taipei Hsien, TW;
Acard Technology Corp., Taipei Hsien, TW;
Abstract
This invention relates to a wire-free sensing apparatus used in a disc system. The apparatus mainly comprises a beam emitting source installed at the case for emitting a beam, a reflector installed at the drawer for reflecting the beam, a beam receiving end installed at the case for receiving the beam reflected by the reflector, a switch installed at the drawer for controlling whether the reflector reflects the beam or not, and a one-way mirror installed at the case. The one-way mirror forms a non-right angle with an emitting direction of the beam and has a penetrating surface and a reflecting surface at opposite sides thereof wherein the beam penetrates the penetrating surface, and can be reflected by the reflector to the reflecting surface and then reflected by the reflecting surface to the beam receiving end.