Electronic display system capable of displaying communication signal strength on individual electronic display modules and method of using the same

• US 5,604,923 A
• Filed: 11/15/1994
• Issued: 02/18/1997
• Est. Priority Date: 11/15/1994
• Status: Expired due to Term

• Current Assignee: NCR Corporation (NCR Voyix Corporation)
• Original Assignee: AT&T Global Information Solutions Company (NCR Voyix Corporation)
• Inventors: Wilkus, Stephen A.
• Primary Examiner(s): Pham, Chi H.
• Application Number:
  US08/339,624
• Time in Patent Office: 826 Days
• Field of Search: 455/54.1, 455/54.2, 455/66, 455/67.1, 455/67.7, 455/226.2, 455/226.4, 455/57.1, 364/403, 340/825.17
• US Class Current: 455/67.7
• CPC Class Codes: G06K 17/0022 arrangements or provisions for transferring data to distant stations, e.g. from a sensing device "transfer between computer elements G06F13/00 "; data-transmission H04L
• CPC Class Codes: G09G 2380/04 Electronic labels

Abstract

Electronic display system capable of displaying communication signal strength on individual electronic display modules and method of using the same. In one preferred embodiment of the present invention, a pseudo-price change command is transmitted by a base communication station to an individual electronic display module and the strength of the acknowledgment signal returned by the individual electronic display module is observed and temporarily recorded. The base communication station then transmits a command to change the electronic display on that particular electronic display module to display the value of the received communication signal strength.

Claims

1. An electronic display system, comprising:

at least one electronic display module having an electronic display;

an antenna having a receiver portion to receive communication signals from said at least one electronic display module and a transmitter portion to transmit communication signals to said at least one electronic display module; and

a base communications station to send communication signals to said antenna for transmittal to said at least one electronic display module, to receive a return acknowledgment signal from said at least one electronic display module and to send back a communication signal having a value of the communication signal strength of said return acknowledgment signal received from said at least one electronic display module for display on said electronic display of said at least one electronic display module.

2. The electronic display system in accordance with claim 1, wherein said electronic display is a liquid crystal display (LCD).

3. The electronic display system in accordance with claim 2, wherein said antenna is mounted on a ceiling above said at least one electronic display module.

4. The electronic display system in accordance with claim 3, wherein said at least one electronic display module is mounted on a merchandise display showcase.

5. A method of measuring the communication signal strength of an individual electronic display module in an electronic display system, comprising the steps of:

sending a pseudo-price communication signal from a base communications station;

said individual electronic display module receiving said pseudo-price communication signal from said base communications station and returning a communication acknowledgment signal;

said base communications station receiving said communication acknowledgment signal from said individual electronic display module and measuring the communication signal strength thereof;

said base communications station transmitting a value corresponding to said communication signal strength;

said individual electronic display module receiving said value corresponding to said communication signal strength from said base communications station; and

said individual electronic display module displaying said value corresponding to said communication signal strength.

6. The method of measuring the communication signal strength of an individual electronic display module in an electronic display system in accordance with claim 5, wherein the steps of the method are repeated at approximately six (6) second intervals.

7. A method of measuring the communication signal strength of an individual electronic display module in an electronic display system, comprising the steps of:

sending a pseudo-price communication signal from a base communications station to a transmitting portion of an antenna;

said transmitting portion of said antenna transmitting said pseudo-price communication signal;

said individual electronic display module receiving said pseudo-price communication signal transmitted by said antenna and returning a communication acknowledgment signal;

a receiving portion of said antenna receiving said communication acknowledgment signal;

said antenna sending said communication acknowledgment signal to said base communications station;

said base communications station receiving said communication acknowledgment signal from said antenna and measuring the communication signal strength thereof;

said base communications station transmitting a value corresponding to said communication signal strength to said antenna;

said transmitting portion of said antenna transmitting said value corresponding to said communication signal strength;

said individual electronic display module receiving said value corresponding to said communication signal strength from said transmitting portion of said antenna; and

said individual electronic display module displaying said value corresponding to said communication signal strength.

8. The method of measuring the communication signal strength of an individual electronic display module in an electronic display system in accordance with claim 7, wherein the steps of the method are repeated at approximately six (6) second intervals.

9. A method of measuring the communication signal strength of a plurality of electronic display modules in an electronic display system, comprising the steps of:

sending a pseudo-price communication signal from a base communications station;

each of said plurality of electronic display modules receiving said pseudo-price communication signal from said base communications station and returning a communication signal acknowledgment message;

said base communications station receiving said acknowledgment signal from each of said plurality of electronic display modules and measuring the communication signal strength thereof;

said base communications station transmitting a value corresponding to said communication signal strength;

each of said plurality of individual electronic display modules receiving said value of said communication signal strength from said communications station; and

each of said plurality of individual electronic display modules displaying said value corresponding to said communication signal strength.

10. The method of measuring the communication signal strength of a plurality of electronic display modules in an electronic display system in accordance with claim 9, wherein the steps of the method are repeated at approximately six (6) second intervals.

11. The method of measuring the communication signal strength of a plurality of electronic display modules in an electronic display system in accordance with claim 10, wherein each of said plurality of electronic display modules simultaneously display said value corresponding to said communication signal strength.

12. The method of measuring the communication signal strength of a plurality of electronic display modules in an electronic display system in accordance with claim 9, wherein each of said plurality of electronic display modules simultaneously display said value corresponding to said communication signal strength.