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. 03, 2000
Filed:
Nov. 19, 1998
Thierry Roz, Preles, CH;
EM Microelectronic-Marin SA, Marin, CH;
Abstract
A transponder (30), intended to exchange data during a half duplex communication, includes a coil (3), a capacitor (8) connected to the coil to form a resonant circuit, and processing means (33) arranged to process the data. The transponder further includes switching means (32) arranged so that, under the control of the processing means, the switching means connect the processing means in series with the capacitor and the coil which are connected to form, during the entire duration of the reception phase, a parallel LC circuit and, during the entire duration of the transmission phase, a series LC circuit to optimize the electric power exchanged between an antenna and the processing means.