Wireless display device and radio frequency identification system using the same
First Claim
1. A wireless display device, including:
- an antenna unit, including a first antenna provided for receiving a first electromagnetic wave and transmitting a second electromagnetic wave, and a second antenna provided for receiving a third electromagnetic wave, wherein the first electromagnetic wave carries an identification data and a display data, and the second electromagnetic wave carries a verification message;
a processing unit, connected to the first antenna for obtaining the identification data, the display data and a first electric power from the first electromagnetic wave, and resulting the verification message after verifying the identification data, wherein the first electric power provides power for the processing unit;
a display unit, connected to the processing unit for displaying an image in accordance with the display data via the processing unit; and
a power supply unit, connected to the second antenna and the display unit for obtaining a second electric power from the third electromagnetic wave so as to provide the display unit with the second electric power.
1 Assignment
0 Petitions
Accused Products
Abstract
A wireless display device includes an antenna unit, a processing unit, a display unit, and a power supply unit. The antenna unit is provided for receiving a first electromagnetic wave and a third electromagnetic wave, and transmitting a second electromagnetic wave. The processing unit is connected to the antenna unit for obtaining an identification data, a display data and a first electric power from the first electromagnetic wave, and the first electric power provides power for the processing unit. Additionally, the display unit is connected to the processing unit for displaying an image in accordance with the display data via the processing unit. The power supply unit is connected to the antenna unit and the display unit for obtaining a second electric power from the third electromagnetic wave so as to provide the display unit with the second electric power.
34 Citations
7 Claims
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1. A wireless display device, including:
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an antenna unit, including a first antenna provided for receiving a first electromagnetic wave and transmitting a second electromagnetic wave, and a second antenna provided for receiving a third electromagnetic wave, wherein the first electromagnetic wave carries an identification data and a display data, and the second electromagnetic wave carries a verification message; a processing unit, connected to the first antenna for obtaining the identification data, the display data and a first electric power from the first electromagnetic wave, and resulting the verification message after verifying the identification data, wherein the first electric power provides power for the processing unit; a display unit, connected to the processing unit for displaying an image in accordance with the display data via the processing unit; and a power supply unit, connected to the second antenna and the display unit for obtaining a second electric power from the third electromagnetic wave so as to provide the display unit with the second electric power. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A radio frequency identification system, including:
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a host, provided for transmitting a first electromagnetic wave and a third electromagnetic wave, and receiving a second electromagnetic wave simultaneously, wherein the first electromagnetic wave carries an identification data and a display data, and the second electromagnetic wave carries a verification message; and at least one wireless display device, provided for receiving the first electromagnetic wave and the third electromagnetic wave, and transmitting the second electromagnetic wave, wherein the at least one wireless display device obtains the identification data, the display data and a first electric power from the first electromagnetic wave, and obtains a second electric power from the third electromagnetic wave, and transmits the second electromagnetic wave which carries the verification message after verifying the identification data, and wherein the at least one wireless display device obtains power via the first electromagnetic wave and the third electromagnetic wave, and displays an image in accordance with the display data.
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Specification