Electronic design protection circuit

Details Electronic design protection circuit Electronic design protection circuit

2006-09-12

2006-09-12

Kik, Phallaka (Department: 2825)

Computer-aided design and analysis of circuits and semiconductor

Nanotechnology related integrated circuit design

C716S030000, C716S030000, C716S030000

Reexamination Certificate

active

07107567

ABSTRACT:
Protected electronic designs permit appropriate simulation and testing of the electronic design in a simulation environment, while preventing a correctly operating unauthorized implementation of the electronic design in a hardware environment such as a programmable device. An unprotected version of the simulation version of an electronic design is augmented by adding protection circuitry to the unprotected version to create a protected version of the electronic design, which operates correctly in a simulation environment but which fails to operate correctly in a hardware environment. In some embodiments of the present invention, a separate programming version which does not incorporate the protection circuitry of the simulation version may also be provided for licensed/authorized users of the electronic design, which may be an IP core or other design.

REFERENCES:
patent: 6539525 (2003-03-01), Kwon
patent: 2003/0188275 (2003-10-01), Meares
patent: 2004/0088674 (2004-05-01), Kato et al.
patent: 2005/0071792 (2005-03-01), Ferguson et al.
Adi et al., “A Protection Mechanism for Intellectual Property Rights (IPR) in FPGA Design”, Proceedings of the 2003 10th IEEE International Conference on Electronics, Circuits and Systems, vol. 1, Dec. 14, 2003, pp. 92-95.
Release of Quartus II 3.0 EDA software by Altera Corporation—Jun. 23, 2003 [Some features described in two internal documents: Gopalsamy, “Simgen—Sgate Level Simulation Netlist Generator,” version 1.1, 8 Pages; and Molson, “Simgen Requirements,” version 1.0, 11 Pages] .
Bain, “Method for Creation of Secure Simulation Models,” U.S. Appl. No. 10/646,193, filed Aug. 22, 2003, 43 Pages.

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