RFID Transponder Transmitting Concatenation of Pages
First Claim
1. A transponder of a radio frequency identification system comprising:
- a controller;
a memory arrangement accessible by the controller and for storing r-pages of k-bits of data each, a first page of the r-pages comprising an ID code relating to an integrated chip forming part of the transponder; and
the controller being configured, after the transponder having been interrogated by a reader, to transmit transponder ID data comprising a concatenation of pages comprising the first page and at least one other page, wherein each page is led by a respective m-bit header, the header for each page comprising at least a random number and one of;
data relating to a number equal to a total number of pages in the transponder ID data; and
respective data relating to a sequential number of the page in the transponder ID data.
1 Assignment
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Accused Products
Abstract
Disclosed is a transponder of a radio frequency identification system. Connected to a controller is a memory storing r-pages of k-bits of data. A first page includes an ID code relating to an integrated chip forming part of the transponder. The controller is configured, after the transponder has been interrogated by a reader, automatically and on a transponder talk only basis, to transmit transponder ID data including a concatenation of pages. Each page is led by a respective m-bit header. The header includes: (a) a first part having a random number, (b) a second part having for the first page in the ID data, a total number of pages in the ID data and for any subsequent page, a page number of the page in the memory and; (c) a third part having a sequential number for the page in the ID data.
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Citations
9 Claims
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1. A transponder of a radio frequency identification system comprising:
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a controller; a memory arrangement accessible by the controller and for storing r-pages of k-bits of data each, a first page of the r-pages comprising an ID code relating to an integrated chip forming part of the transponder; and the controller being configured, after the transponder having been interrogated by a reader, to transmit transponder ID data comprising a concatenation of pages comprising the first page and at least one other page, wherein each page is led by a respective m-bit header, the header for each page comprising at least a random number and one of;
data relating to a number equal to a total number of pages in the transponder ID data; and
respective data relating to a sequential number of the page in the transponder ID data. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of reading a transponder forming part of a radio frequency identification system, the method comprising the steps of:
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causing an interrogation signal to be received at the transponder; and causing the transponder to transmit a response signal comprising transponder ID data comprising a concatenation of pages comprising at least a first page and one other page, wherein each page is led by a respective header, the header for each page comprising at least a random number and one of;
data relating to a number equal to a total number of pages in the transponder ID data; and
respective data relating to a sequential number of the page in the transponder ID data. - View Dependent Claims (8, 9)
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Specification