Radio frequency identification apparatus with a plurality of radio frequency identification schemes
First Claim
1. A radio frequency identification (RFID) apparatus comprising:
- a first RFID chip configured to control data communication using a first RFID scheme;
a second RFID chip configured to control data communication using a second RFID scheme;
a loop antenna having first antenna connection terminals for a first length and second antenna connection terminals for a second length;
a switch circuit connected with the first and second antenna connection terminals of the loop antenna, the first RFID chip and the second RFID chip; and
a controller configured to control the switch circuit so as to selectively switch the loop antenna into one of the first RFID chip and the second RFID chip based on whether data communication is one of the first and second RFID schemes.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed is a radio frequency identification (RFID) apparatus which includes a first RFID chip for controlling data communication in a first RFID scheme, a second RFID chip for controlling data communication in a second RFID scheme, a loop antenna having first antenna connection terminals for forming a first length and second antenna connection terminals for forming a second length, a switch circuit connected with the first and second antenna connection terminals of the loop antenna and the first RFID chip and the second RFID chip and a controller for controlling the switch circuit so as to selectively switch the loop antenna into one of the first RFID chip and the second RFID chip based on whether data communication is one of the first and second RFID schemes.
29 Citations
20 Claims
-
1. A radio frequency identification (RFID) apparatus comprising:
-
a first RFID chip configured to control data communication using a first RFID scheme; a second RFID chip configured to control data communication using a second RFID scheme; a loop antenna having first antenna connection terminals for a first length and second antenna connection terminals for a second length; a switch circuit connected with the first and second antenna connection terminals of the loop antenna, the first RFID chip and the second RFID chip; and a controller configured to control the switch circuit so as to selectively switch the loop antenna into one of the first RFID chip and the second RFID chip based on whether data communication is one of the first and second RFID schemes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A radio frequency identification (RFID) apparatus comprising:
-
two or more RFID chips configured to control data communication using two or more RFID schemes; an antenna having two or more antenna connection terminals and having two or more loop lengths; a switch configured to switch the two or more RFID chips between the two or more antenna connection terminals; and a controller configured to, determine a selected RFID scheme, and control the switch based on the selected RFID scheme. - View Dependent Claims (13, 14, 15, 16, 17)
-
-
18. A method for operating a radio frequency identification (RFID) device with two or more RFID chips, the method comprising:
-
determining if a select signal has been detected; determining if the select signal selects a first RFID scheme if the select signal has been detected; switching an antenna, having first antenna connection terminals for a first length and second antenna connection terminals for a second length, such that the first antenna connection terminals and a first RFID chip are selected if the first RFID scheme is selected, the first RFID chip configured to perform the first RFID scheme; and switching the antenna such that the second antenna connection terminals and a second RFID chip of the RFID chips are selected to receive the data communications if the first chip is not selected, the second RFID chip configured to perform a second RFID scheme. - View Dependent Claims (19, 20)
-
Specification