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:
Sep. 10, 2013
Filed:
Jun. 23, 2008
Loeke Brederveld, Meerkerk, NL;
Bram Hugo Bert Van Den Bosch, Berchem, BE;
Bart Magda Alex Jonkers, Hoevenen, BE;
Adriaan Kamerman, Nieuwegein, NL;
Stephan Johann Noel, Brussels, BE;
Cornelis Adrianus Marinus Steenbergen, Bilthoven, NL;
Loeke Brederveld, Meerkerk, NL;
Bram Hugo Bert Van Den Bosch, Berchem, BE;
Bart Magda Alex Jonkers, Hoevenen, BE;
Adriaan Kamerman, Nieuwegein, NL;
Stephan Johann Noel, Brussels, BE;
Cornelis Adrianus Marinus Steenbergen, Bilthoven, NL;
Greenpeak Technologies B.V., , NL;
Abstract
A communication protocol based on CSMA between a node, in particular an electronic label, and a network coordinator is disclosed. The node comprises:—a transceiver provided for communication with a network coordinator, wherein the transceiver handles a transmission channel based on CSMA;—a processing unit provided for processing data received via the transmission channel and displaying the data on a display unit. The electronic label is arranged to perform:—sending recurrently a data request packet;—going to a low power mode after sending the data request packet; and—waking-up for receiving a data response packet a predefined time interval after beginning sending the data request packet. The network coordinator is arranged to transmit the data response packet the predefined time interval after receiving the beginning of the data request packet. The invention provides a protocol based on CSMA with very low power operation in which a multitude of end nodes could receive from a network coordinator their corresponding data.