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Methods and apparatus for replacing an electronic shelf label battery

Imported: 24 Feb '17 | Published: 24 Aug '04

John Fredrick Crooks

USPTO - Utility Patents

Abstract

Systems and techniques for electronic shelf label (ESL) battery replacement are described. A first embodiment includes an ESL having a single battery and two battery compartments. A replacement battery is placed within the empty battery compartment before the old battery is removed. In a second embodiment, an ESL includes a single battery situated in a single battery compartment, and a large value capacitor connected in parallel with the battery which maintains the contents of the ESL's volatile RAM while the single battery is changed. In a third embodiment, an ESL includes two battery compartments, a single battery and a large value capacitor connected in parallel with the battery. In another aspect, an ESL displays instructions for changing the ESL battery. The ESL includes a pushbutton for user input which allows the user to cycle through multiple battery change instructions. These instructions may be stored in locally in the ESL or may be transmitted to the ESL from a host system.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram of a transaction management system in accordance with the present invention;

FIG. 2 is a block diagram of an ESL in accordance with the present invention;

FIG. 3 shows a rear view of a first embodiment of an ESL in accordance with the present invention;

FIG. 4 shows a block diagram of an ESL in accordance with one aspect of the present invention;

FIG. 5 shows a block diagram of an ESL in accordance with another aspect of the present invention;

FIG. 6 shows a rear view of a second embodiment of an ESL in accordance with the present invention;

FIG. 6A shows an ESL circuit diagram in accordance with the present invention;

FIG. 7 illustrates a first method of replacing an ESL battery in accordance with the present invention; and

FIG. 8 illustrates a second method of replacing an ESL battery in accordance with the present invention.

Claims

1. An electronic shelf label (ESL) comprising:

2. The electronic shelf label of claim 1 wherein the battery cover has a first position and a second position, wherein when the battery cover is in the first position the first battery compartment is uncovered and the second battery compartment is covered, and wherein when the battery cover is in the second position the first battery compartment is covered and the second battery compartment is uncovered.

3. The electronic shelf label of claim 1 further comprising two channels slidably engaging the battery cover.

4. The electronic shelf label of claim 1 further comprising ESL communication circuitry for communicating with a host system.

5. The electronic shelf label of claim 4 further comprising a pushbutton for initiating transmission of a message to the host system when the pushbutton is depressed.

6. The electronic shelf label of claim 5 wherein the ESL communication circuitry is for receiving a first message from the host system directing the ESL to display a first battery change instruction.

7. The electronic shelf label of claim 6 wherein the ESL communication circuitry is for receiving a second message from the host system directing the ESL to display a second battery change instruction, wherein the second message is received in response to the pushbutton being depressed.

8. The electronic shelf label of claim 1 further comprising a pushbutton;

9. A method of replacing an old battery with a new battery in an electronic shelf label (ESL) comprising the steps of:

10. The method of claim 9 further comprising, before step (i), the steps of:

11. A method of replacing an old battery with a new battery in an electronic shelf label (ESL) comprising the steps of:

12. The method of claim 11 further comprising, before the step of displaying a first message, the step of determining that the old battery needs to be replaced with the new battery.

13. An electronic shelf label (ESL) comprising:

14. The electronic shelf label of claim 13 wherein the battery cover has a first position and a second position, wherein when the battery cover is in the first position the first battery compartment is uncovered and the second battery compartment is covered, and wherein when the battery cover is in the second position the first battery compartment is covered and the second battery compartment is uncovered.

15. The electronic shelf label of claim 13 further comprising two channels slidably engaging the battery cover.

16. The electronic shelf label of claim 13 wherein the ESL communication circuitry is for receiving a third message from the host system directing the ESL to display a another battery change instruction, wherein the third message is received in response to the pushbutton being depressed.

17. An electronic shelf label (ESL) comprising: