RFID SYSTEM

• US 20110148598A1
• Filed: 06/02/2010
• Published: 06/23/2011
• Est. Priority Date: 12/23/2009
• Status: Abandoned Application

• Current Assignee: Hynix Semiconductor Incorporated (SK Hynix Inc.)
• Original Assignee: Hynix Semiconductor Incorporated (SK Hynix Inc.)
• Inventors: KANG, Hee Bok
• Application Number:
  US12/792,513
• Publication Number:
  US 20110148598A1
• Time in Patent Office: Days
• US Class Current: 340/10.6
• CPC Class Codes: G06K 19/0723 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs

Abstract

An RFID system includes: an input unit configured to generate a command signal according to a radio signal applied through an antenna; a digital unit configured to control the command signal and generate an address, data, and a control signal; a memory unit configured to perform a data read or write operation according to the control signal applied from the digital unit; a coupling unit coupled to an external driving device; and a driving controller configured to output a driving signal, which controls the driving device according to data stored in the memory unit, to the coupling unit, wherein the memory unit includes a first address area which stores data for transmitting and receiving the radio signal, and a second address area which stores data for controlling the driving device.

Claims

1. A radio frequency identification (RFID) system comprising:

an input unit configured to generate a command signal according to a radio signal applied through an antenna;

a digital unit configured to generate an address, input/output data, and a control signal based on the command signal;

a memory unit configured to perform a data read or write operation according to the control signal and the address applied from the digital unit, the memory unit including a first address area to store first data for transmitting and receiving the radio signal, and a second address area to store second data for controlling an external driving device;

a coupling unit configured to couple the external driving device and the RFID system; and

a driving controller configured to output a driving signal for controlling the driving device according to second data stored in the memory unit, and output the driving signal to the coupling unit.

2. The RFID system according to claim 1, wherein the input unit comprises:

a demodulator configured to demodulate the radio signal and generate a first command signal;

an interface unit configured to control a serial interface signal applied from an external node and generate a second command signal; and

a command signal input unit configured to activate the command signal when the first command signal from the demodulator or the second command signal from the interface unit, or both are activated.

3. The RFID system according to claim 2, wherein the input unit further comprises:

a data input pad configured to receive a serial data and output the received serial data to the interface unit; and

a clock input pad configured to receive a serial clock and output the received serial clock to the interface unit.

4. The RFID system according to claim 1, wherein the first address area comprises a nonvolatile ferroelectric memory.

5. The RFID system according to claim 1, wherein the second address area comprises:

a plurality of registers configured to store the second data for controlling the driving device; and

a selection register configured to store data for selecting any one of the plurality of registers.

6. The RFID system according to claim 1, further comprising:

a plurality of decoders configured to decode output data of the second address area;

a selection decoder configured to output a selection signal; and

a selector configured to select any one of outputs of the plurality of decoders in response to the selection signal, wherein the selected output of the plurality of decoders is inputted to the driving controller.

7. The RFID system according to claim 1, wherein the second address area comprises at least one of data for controlling an on/off operation of the driving device, data for controlling brightness information of the driving device, and data for controlling a progress pattern of the driving device.

8. The RFID system according to claim 1, wherein the external device comprises a display device.

9. The RFID system according to claim 8, wherein the display device comprises light emitting diodes (LEDs).

10. The RFID system according to claim 9, wherein the second address area stores at least one of data for controlling an on/off operation of the LEDs, data for controlling brightness information of the LEDs, and data for controlling a progress pattern of the LEDs.

11. The RFID system according to claim 1, wherein the digital unit is configured to determine whether the command signal corresponds to the first address area or the second address area, and output the address corresponding to the first address area or the second address area to activate one of the first and second address areas.

12. The RFID system according to claim 1, wherein the RFID system is an RFID chip, the RFID chip further comprises:

a modulator configured to output a response signal corresponding to the command signal to the antenna;

a power on reset unit configured to generate and output a power on reset signal to the digital unit; and

a clock generator configured to generate and output a clock signal to the digital unit.

13. The RFID system according to claim 1, further comprising:

a power supply voltage pad configured to supply a power supply voltage to an RFID chip; and

a ground voltage pad configured to supply a ground voltage to the RFID chip.

14. The RFID system according to claim 1, wherein the coupling unit comprises pads coupled between the driving device and the driving controller.