Device and Method for Selectively Controlling the Utility of an Integrated Circuit Device

• US 20080090527A1
• Filed: 05/25/2007
• Published: 04/17/2008
• Est. Priority Date: 02/18/2005
• Status: Abandoned Application

• Current Assignee: NXP B.V. (NXP Semiconductors NV)
• Original Assignee: NXP B.V. (NXP Semiconductors NV)
• Inventors: Atkinson, Paul, Kumar, Rakesh, Reyzer, Kendall, Kruest, James, Conero, Ronald
• Application Number:
  US11/753,606
• Publication Number:
  US 20080090527A1
• Time in Patent Office: Days
• US Class Current: 455/70
• CPC Class Codes: G06F 21/88 Detecting or preventing theft or loss
• CPC Class Codes: G08C 17/02 using a radio link

Abstract

A radio frequency controller device is provided that enables the utility of an integrated circuit (IC) device using an RF communication. The radio frequency controller device has a switch that is set to a defined state responsive to the RF communication. More particularly, conditional logic circuitry uses the RF communication to determine if the IC'"'"'s utility should be changed, and sets the state of the switch accordingly. The radio frequency controller device also has an IC interface that allows the IC to determine the state of the switch, and based on the state of the switch, a different utility will be available for the integrated circuit device. The radio frequency controller device also has an antenna for the RF communication, as well as a demodulator/modulator circuit.

Claims

30. A controlled integrated circuit device, comprising:

an integrated circuit having a power-input line;

a wireless communication device, comprising;

a switch connected to the power-input line, the state of the switch set responsive to a received wireless signal;

a circuit power source connected to the switch; and

wherein the state of the switch is set to selectably apply power to the integrated circuit.

1. An wirelessly controlled integrated circuit device, comprising:

an integrated circuit device;

a wireless communication device, comprising;

a switch coupled to operating circuitry in the integrated circuit device;

a circuit constructed to set the state of the switch responsive to a received wireless signal;

a power source coupled to the circuit; and

wherein the state of the switch selectably sets the utility of the operational circuitry for the integrated circuit device.

2. The wirelessly controlled integrated circuit device according to claim 1, wherein the wireless communication device is a Radio Frequency (RF) device.

3. The wirelessly controlled integrated circuit device according to claim 1, wherein the wireless communication device is a Near Field Communication (NFC) device.

4. The wirelessly controlled integrated circuit device according to claim 1, wherein the switch couples to a logic line for the operational circuitry.

5. The wirelessly controlled integrated circuit device according to claim 4, wherein the switch includes a field effect transistor to set the state of the logic line for the operational circuitry.

6. The wirelessly controlled integrated circuit device according to claim 1, wherein the switch couples to a power line for the operational circuitry.

7. The wirelessly controlled integrated circuit device according to claim 6, wherein the switch includes a power switch.

8. The wirelessly controlled integrated circuit device according to claim 6, wherein the switch includes a field effect transistor to control power to the operational circuitry.

9. The wirelessly controlled integrated circuit device according to claim 1, wherein the switch connects to a signal line of the integrated circuit device.

10. The wirelessly controlled integrated circuit device according to claim 9, wherein the signal line is a reset line, a power-on line, a good-power line, a chip-select line, a chip-enable line, or a plurality of power lines.

11. The wirelessly controlled integrated circuit device according to claim 9, wherein the signal line is two or more selected from the group consisting of:

a reset line, a power-on line, a good-power line, a chip-select line, a chip-enable line, and a plurality of power lines.

12. The wirelessly controlled integrated circuit device according to claim 1, wherein the integrated circuit device and the wireless device are in a same package enclosure.

13. The wirelessly controlled integrated circuit device according to claim 12, wherein the package enclosure has pinouts, and an unassigned pin is coupled to the wireless device as part of an antenna structure for the wireless device.

14. The wirelessly controlled integrated circuit device according to claim 1, wherein the circuitry further comprises:

an antenna;

a modulator/demodulator; and

conditional circuitry.

15. The wirelessly controlled integrated circuit device according to claim 14, wherein the antenna is removable.

16. The wirelessly controlled integrated circuit device according to claim 14, wherein the conditional circuitry is a logic circuit, a processor, a microprocessor, a microcontroller, or a comparison circuit.

17. The wirelessly controlled integrated circuit device according to claim 1, wherein the power source is a modulator/demodulator or a battery.

18. The wirelessly controlled integrated circuit device according to claim 1, wherein the operating circuitry operates at compromised utility responsive to a first state of the switch, and operates at a full operational utility responsive to a second state of the switch.

19. The wirelessly controlled integrated circuit device according to claim 1, further including an isolation switch between the low power circuit and the operating circuitry.

20. The wirelessly controlled integrated circuit device according to claim 1, wherein the integrated circuit is selected from the group consisting of:

microprocessor, microcontroller, field programmable gate array, memory chip, and memory card.

21. The wirelessly controlled integrated circuit device according to claim 20, wherein the microprocessor is selected from the group consisting of:

Intel Itanium 2, Intel Xeon, Intel Pentium, AMD Opteron, AMD Turion, and AMD Athlon.

22. The wirelessly controlled integrated circuit device according to claim 20, wherein the field programmable gate array is selected from the group consisting of:

Altera Stratix II, Altera Cyclone, Altera MaxII, Silinx Virtex, Xilinx Spartan, Xilinx CoolRunner, Lattice SC, Lattice XP, and Lattice ECP2.

23. The wirelessly controlled integrated circuit device according to claim 20, wherein the memory card is selected from the group consisting of:

PC memory module, SD card, CF card, XD card, USB flash drive, and microdrive.

24. The wirelessly controlled integrated circuit device according to claim 1, wherein the switch further comprises a change effecting device.

25. The wirelessly controlled integrated circuit device according to claim 24, wherein the change effecting device is an electrically switchable optical material.

26. The wirelessly controlled integrated circuit device according to claim 1, wherein the switch is a change effecting device, and the change effecting device is a memory value, an electronic switch, an electrical switch, a mechanical switch, a fuse, an electromechanical device, a chemical change, an electro-optical filter, an optical emitter, an EM emitter, or a power controller.

27. The wirelessly controlled integrated circuit device according to claim 26, wherein the electronic switch is a FET.

28. The wirelessly controlled integrated circuit device according to claim 26, wherein the power controller is a FET.

29. The wirelessly controlled integrated circuit device according to claim 1, wherein the integrated circuit device and the wireless device are in different package enclosures.

31. The controlled integrated circuit device according to claim 30, wherein the wireless communication device is a Radio Frequency (RF) device.

32. The controlled integrated circuit device according to claim 30, wherein the wireless communication device is a Near Field Communication (NFC) device.

33. The controlled integrated circuit device according to claim 30, wherein the switch includes a field effect transistor to control power to the integrated circuit.

34. The controlled integrated circuit device according to claim 30, wherein the wireless device further comprises:

an antenna;

a modulator/demodulator; and

conditional circuitry.

35. The controlled integrated circuit device according to claim 34, wherein the antenna is removable.

36. The controlled integrated circuit device according to claim 34, wherein the conditional circuitry is a logic circuit, a processor, a microprocessor, a microcontroller, or a comparison circuit.

37. The controlled integrated circuit device according to claim 34, wherein the wireless device further includes a power source in the form of a modulator/demodulator or a battery for powering the conditional circuitry.

34-1. The controlled integrated circuit device according to claim 30, wherein the integrated circuit is a circuit section selected from the group consisting of:

microprocessor, microcontroller, field programmable gate array, memory chip, and memory card.

35-2. The controlled integrated circuit device according to claim 34, wherein the microprocessor is selected from the group consisting of:

Intel Itanium 2, Intel Xeon, Intel Pentium, AMD Opteron, AMD Turion, and AMD Athlon.

36-3. The controlled integrated circuit device according to claim 34, wherein the field programmable gate array is selected from the group consisting of:

Altera Stratix II, Altera Cyclone, Altera MaxII, Silinx Virtex, Xilinx Spartan, Xilinx CoolRunner, Lattice SC, Lattice XP, and Lattice ECP2.

37-4. The controlled integrated circuit device according to claim 34, wherein the memory card is selected from the group consisting of:

PC memory module, SD card, CF card, XD card, USB flash drive, and microdrive.