Title:
通報機に関するトランスポンダの位置決定方法
Document Type and Number:
Japanese Patent JP2008526588
Kind Code:
A
Abstract:
A method of determining the position of a transponder in relation to a communicator, wherein the transponder (9) can be read by a communicator (11) which is adapted to send an inquiry signal to the transponder, wherein the transponder (9) is adapted to answer the inquiry signal and therewith transfer information from a memory in the transponder and wherein the communicator (11) is connected to a principal data system (16) and is adapted to receive the information. The method is characterized by connecting the communicator (11) to an envelope detector (15) which is caused to detect the envelope of the signal received from the transponder (9); and by determining the relative position between the transponder (9) and the communicator (11) from the envelope.
Inventors:
Wilgert, Michael
Application Number:
JP2007549313A
Publication Date:
July 24, 2008
Filing Date:
December 06, 2005
Export Citation:
Assignee:
Tag Master AB
International Classes:
B61L3/12; G01S13/74; G01S
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Kuniaki Shimizu
Hayashi Zouzo
Hajime Asamura
Kuniaki Shimizu
Hayashi Zouzo