Electronic price label system promotional information verifier
First Claim
1. A method of ensuring that promotional information for an item obtained from a promotional information file is equal to other promotional information assigned to an electronic price label for the item for display by the electronic price label, comprising the steps of:
- (a) reading an electronic price label data file to obtain identification information and a promotional information verifier for the item;
(b) reading the promotional information file to obtain the promotional information for the item using the identification information obtained from the electronic price label data file;
(c) calculating another promotional information verifier from the promotional information in the promotional information file;
(d) comparing the one and the other promotional information verifiers to determine whether they are equal; and
(e) assigning the promotional information from the promotional information file to the electronic price label if the one and the other promotional information verifiers are different.
5 Assignments
0 Petitions
Accused Products
Abstract
An electronic price label (EPL) promotional information verification system which ensures that promotional information for an item obtained from a promotional information file is equal to other promotional information displayed by an electronic price label (EPL) for the item. The EPL promotional information verification system includes a computer system coupled to the EPL, which includes a computer terminal and a storage medium coupled to the terminal. The storage medium contains an EPL data file, which contains EPL identification information and an EPL promotional information verifier. The computer terminal executes a promotional information verification program which reads the promotional information file to obtain the promotional information for the item, calculates another promotional information verifier from the promotional information in the promotional information file, reads EPL data file to obtain the one promotional information verifier, compares the one and the other promotional information verifiers to determine whether they are equal, and changes the displayed promotional information to the promotional information in the promotional information file if the one and the other promotional information verifiers are different.
33 Citations
21 Claims
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1. A method of ensuring that promotional information for an item obtained from a promotional information file is equal to other promotional information assigned to an electronic price label for the item for display by the electronic price label, comprising the steps of:
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(a) reading an electronic price label data file to obtain identification information and a promotional information verifier for the item;
(b) reading the promotional information file to obtain the promotional information for the item using the identification information obtained from the electronic price label data file;
(c) calculating another promotional information verifier from the promotional information in the promotional information file;
(d) comparing the one and the other promotional information verifiers to determine whether they are equal; and
(e) assigning the promotional information from the promotional information file to the electronic price label if the one and the other promotional information verifiers are different. - View Dependent Claims (2, 3, 4, 5)
(f) storing the promotional information in a price look-up (PLU) file; and
(g) establishing the PLU file as the promotional information file prior to step (a).
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3. The method of claim 1 wherein step (e) further comprises the substep of:
transmitting a display change request message to the electronic price label instructing the electronic price label to change the displayed promotional information to the promotional information contained in the promotional information file, if the one and the other promotional information verifiers are different.
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4. The method of claim 3 wherein step (e) further comprises the substep of:
updating the promotional information verifier in the electronic price label data file, if the one and the other promotional information verifiers are different.
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5. The method of claim 1 wherein the promotional information verifier is a checksum of the promotional information assigned to the electronic price label.
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6. A method of ensuring that promotional information for an item obtained from a promotional information file is equal to other promotional information assigned to an electronic price label for the item for display by the electronic price label, comprising the steps of:
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(a) providing an electronic price label data file including a record associated with the electronic price label;
(b) storing identification information for the item in the record;
(c) determining a promotional information checksum value for the item from the assigned promotional information;
(d) storing the promotional information checksum value in the electronic price label data file;
(e) reading the record in the electronic price label data file to obtain the identification information and the promotional information checksum value for the item;
(f) reading the promotional information file to obtain the promotional information for the item using the identification information obtained from the electronic price label data file;
(g) calculating another promotional information checksum value from the promotional information for the item in the promotional information file;
(h) comparing the one and the other promotional information checksum values to determine whether the one and the other price checksum values are equal;
(i) if the one and the other promotional information verifiers are different, (i-1) assigning the promotional information from the promotional information file to the electronic price label; and
(i-2) instructing the electronic price label to display the promotional information from the promotional information file. - View Dependent Claims (7)
(i-3) storing the other promotional information checksum value in the record of the electronic price label data file.
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8. A system for ensuring that promotional information for an item obtained from a promotional information file is equal to other promotional information assigned to an electronic price label (EPL) for the item for display by the EPL, comprising:
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a computer system coupled to the EPL, including a terminal and a storage medium coupled to the terminal;
wherein the storage medium contains an EPL data file, which contains identification information and a promotional information verifier for the item;
wherein the computer terminal reads the promotional information file to obtain the promotional information for the item, calculates another promotional information verifier from the promotional information in the promotional information file, reads the EPL data file to obtain the one promotional information verifier, compares the one and the other promotional information verifiers to determine whether they are equal, and, if the one and the other promotional information verifiers are different, assigns the promotional information from the promotional information file to the electronic price label, and instructs the electronic price label to display the promotional information from the promotional information file. - View Dependent Claims (9)
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10. A system for ensuring that promotional information for an item obtained from a promotional information file is equal to other promotional information assigned to an electronic price label (EPL) for the item for display by the EPL, comprising:
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a computer system coupled to the EPL, including a terminal and a storage medium coupled to the terminal;
wherein the storage medium contains an EPL data file including a record associated with the EPL;
wherein the computer terminal stores identification information for the item in the record, determines a promotional information checksum value for the item from promotional information displayed by the EPL, stores the promotional information checksum value in the EPL data file, reads the record in the EPL data file to obtain the identification information and the promotional information checksum value for the item, reads the promotional information file to obtain the promotional information for the item using the identification information obtained from the electronic price label data file, calculates another promotional information checksum value from the promotional information in the promotional information file, compares the one and the other promotional information checksum values to determine whether the one and the other promotional information checksum values are equal, and changes the displayed promotional information to the promotional information if the one and the other promotional information checksum values are different. - View Dependent Claims (11)
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12. A method of ensuring that promotional information for an item obtained from a promotional information file is equal to other promotional information assigned to an electronic price label for the item for display by the electronic price label, comprising the steps of:
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(a) reading an electronic price label data file to obtain identification information and the other promotional information for the item;
(b) reading the promotional information file to obtain the promotional information for the item using the identification information obtained from the electronic price label data file;
(d) comparing the promotional information from the promotional information file to the other promotional information from the electronic price label data file to determine whether they are equal; and
(e) assigning the promotional information from the promotional information file to the electronic price label if the promotional information from the promotional information file and the other promotional information from the electronic price label data file are different.
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13. A electronic price label (EPL) system comprising:
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an EPL associated with an item and displaying promotional information relating to the item, the EPL including an EPL register storing the promotional information; and
a host computer system including a first record containing a checksum of the promotional information stored in the EPL register, and a second record containing second promotional information, the host computer system operating to calculate a checksum of the second promotional information and to determine if the checksum contained in the first record is equal to the calculated checksum. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification