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:
Feb. 17, 2004
Filed:
Mar. 06, 2001
Kohji Toda, Yokosuka 239-0814, JP;
Other;
Abstract
A coding and decoding system for wireless telecommunication comprises a wireless telecommunication device and a personal card. The wireless telecommunication device consists of a first piezoelectric substrate, a coded IDT, a first electrode-group, a first amplifier, an antenna, a second amplifier, a second electrode-group, a first intermediary IDT, and a signal analyzer. The personal card attached to the wireless telecommunication device consists of a second piezoelectric substrate, a personal coded IDT, a third electrode-group, a second intermediary IDT. The coding and decoding system for wireless telecommunication has four sections, that is, (1) a personal transmitting section (2) a main transmitting section (3) a personal receiving section and (4) a main receiving section.