Electronic Price Indicator, Power Supply Apparatus and Electric Price Indicating System
First Claim
1. A power supply apparatus, comprising:
- a power supply unit connected to a plurality of electronic price indicators for supplying driving power to the electronic price indicators;
an antenna for receiving data transmitted from a server; and
a communication unit for confirming a first electronic price indicator to which data received via the antenna is to be applied among the electronic price indicators when the data is received and outputting a control signal to the power supply unit based on the received data, and thus a power supply signal modulated according to the received data is supplied to the first electronic price indicator;
wherein the modulated power supply signal is distinguished between first data and second data using at least two different voltage differences, and classified by the first data and the second data.
3 Assignments
0 Petitions
Accused Products
Abstract
An electronic price indicating system according to the embodiment includes: at least one electronic price indicator for displaying product information; and a power supply apparatus connected to the at least one electronic price indicator to supply a driving signal which is driving power of the at least one electronic price indicator. The power supply apparatus includes: a power supply unit connected to the at least one electronic price indicator and supplying driving power to the electronic price indicator; an antenna for receiving data transmitted from a server; and a communication unit for confirming a first electronic price indicator to which data received via the antenna is to be applied and supplying power to the confirmed first electronic price indicator, wherein the communication unit controls an operation of the power supply unit, modulates the power supply signal according to the received data, and supplies the modulated power supply signal to the first electronic price indicator.
6 Citations
16 Claims
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1. A power supply apparatus, comprising:
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a power supply unit connected to a plurality of electronic price indicators for supplying driving power to the electronic price indicators; an antenna for receiving data transmitted from a server; and a communication unit for confirming a first electronic price indicator to which data received via the antenna is to be applied among the electronic price indicators when the data is received and outputting a control signal to the power supply unit based on the received data, and thus a power supply signal modulated according to the received data is supplied to the first electronic price indicator; wherein the modulated power supply signal is distinguished between first data and second data using at least two different voltage differences, and classified by the first data and the second data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electronic price indicator displaying product information, comprising:
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a smoothing unit including a power port connected to a power supply apparatus and receiving a power supply signal supplied from the power supply apparatus; a power supply signal analyzing unit driven by the power supply signal received through the smoothing unit and analyzing the power supply signal to confirm the product information; and a display unit for displaying the product information confirmed through the power supply signal analyzing unit; wherein the power supply signal is modulated based on data corresponding to the product information, wherein the power supply signal is distinguished between first data and second data using at least two different voltage differences and is classified by the first data and the second data, and wherein the electronic price indicator does not include a communication module for communication with a server and receives the power supply signal including the product information. - View Dependent Claims (13, 14, 15)
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12. (canceled)
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16-21. -21. (canceled)
Specification