Process for reading electronic labels by identifications of their code by block of bits
First Claim
Patent Images
1. Method for reading a set of electronic labels, each comprising a distinct identification code of N bits and situated in the electromagnetic field of an interrogator device, comprising the following steps:
- (a) for each given code of N bits, defining an elementary analysis block comprising m bits, where m is a sub-unit of N greater than 1,(b) analyzing the code of each label by scrolling through this code block of m bits by block of m bits,(c) assigning a same serial number to all of the labels with a same partially identified code on a row being analyzed, a number of serial numbers assigned representing a number of groups of labels with the same partially identified code,(d) establishing a cross reference table between each serial number and a value of the partially identified code, and(e) updating the serial numbers of the label as the detection of the bits of the identification codes progresses.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention concerns a method for reading a set of electronic labels, each comprising a distinct identification code of N bits and situated in the electromagnetic field of an interrogator device, characterized in that it comprises the following steps:
- a) for each given code of N bits, defining an elementary analysis block comprising m bits, where m is a sub-unit of N,
- b) analyzing the code of each label by scrolling through this code, block of m bits by block of m bits,
- c) and, for a given label, generating a serial number representing the number of labels identified before this label in such a way that the interrogator knows at any moment the number of labels present in the electromagnetic field,
- d) establishing a cross reference table between the serial numbers generated and the values of the identification codes of each label.
4 Citations
15 Claims
-
1. Method for reading a set of electronic labels, each comprising a distinct identification code of N bits and situated in the electromagnetic field of an interrogator device, comprising the following steps:
-
(a) for each given code of N bits, defining an elementary analysis block comprising m bits, where m is a sub-unit of N greater than 1, (b) analyzing the code of each label by scrolling through this code block of m bits by block of m bits, (c) assigning a same serial number to all of the labels with a same partially identified code on a row being analyzed, a number of serial numbers assigned representing a number of groups of labels with the same partially identified code, (d) establishing a cross reference table between each serial number and a value of the partially identified code, and (e) updating the serial numbers of the label as the detection of the bits of the identification codes progresses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. System for reading a set of electronic labels, each including an identification code of N bits, by an interrogator device, the labels and the interrogator device each comprising:
-
signal emitter—
receptor means linked via modulation/demodulation means to sequencing means,the interrogator device comprises means for analyzing each label block of m bits by block of m bits, where m is a sub-unit of N greater than 1, means for calculating, for each label, a serial number representing a number of groups of labels with a same partially identified code, a first memory intended to memorize a cross reference table between the serial numbers and the partially identified codes, a first row counter indicating the number of the group of bits being analyzed, and a second counter indicating the number of labels either totally identified or partially identified, and each label also comprises means for calculating the serial numbers, and a first counter to count rows of blocks of bits currently being analyzed, and a first memory to memorize said serial numbers and to store the identification code of the label. - View Dependent Claims (12, 13, 14, 15)
-
Specification