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| Number | Title | Issue Date |
| 8159259 | Self-modifying FPGA for anti-tamper applications A self-modifying FPGA system includes an FPGA and a configuration memory device coupled to the FPGA for providing the FPGA with configuration information. The configuration memory device is programmed with configuration data and dormant data. The FPGA system is also... | 04/17/2012 |
| 8159260 | Delay chain burn-in for increased repeatability of physically unclonable functions A circuit and method increases the repeatability of physically undetectable functions (PUFs) by enhancing the variation of signal delay through two delay chains during chip burn-in. A burn-in circuit holds the inputs of the two delay chains at opposite random values... | 04/17/2012 |
| 8149012 | Deliberate destruction of integrated circuits A method is provided for intentionally permanently disabling a target device. The target device comprises an integrated circuit having one or more electronic devices, where the target device is disabled by destroying at least one or more electronic devices. The meth... | 04/03/2012 |
| 8151237 | Disabling unused IO resources in platform-based integrated circuits The present invention is directed to methods for disabling unused IO resources in a platform-based integrated circuit. A slice is received from a vendor. The slice includes an IO circuit unused by a customer. The IO circuit is disabled. For example, when the IO circ... | 04/03/2012 |
| 8054098 | Lightweight secure physically unclonable functions Embodiments generally describe techniques for an integrated circuit having a physical unclonable function (PUF). Example integrated circuits may include an input circuit having an input network, a configurable delay circuit having one or more configurable delay chai... | 11/08/2011 |
| 7986158 | Methods, apparatuses, and products for a secure circuit Methods, systems, apparatuses and products are disclosed for providing security circuits. Exemplary embodiments including semiconductor chips on circuit boards are shown, together with application in a movie stick/movie player pair. Such systems provide for a... | 07/26/2011 |
| 7982488 | Phase-change memory security device A semiconductor chip having a subcircuit formed in a substrate; and a phase-change memory cell located on the subcircuit, and configured to directly detect an attack on the subcircuit, or to form a shield to prevent physical access to the subcircuit. ... | 07/19/2011 |
| 7969179 | Method and apparatus for increasing security in a system using an integrated circuit An integrated circuit can be made more secure by programming a one time programmable circuit so that different signals are provided on terminals as compared to when the integrated circuit was not secure. Instead, or in addition, the integrated circuit can be made mo... | 06/28/2011 |
| 7940073 | Deactivation of integrated circuits Integrated circuits and methods of permanently disabling integrated circuits are disclosed. An integrated circuit having an erasable non-volatile memory adapted to store an activation code and logic to disable the integrated circuit when the code in the erasable non... | 05/10/2011 |
| 7906983 | Programmable logic device having an embedded test logic with secure access control An improved configuration for a programmable logic device and an improved method for configuration of a programmable logic device are provided. A programmable logic device such as field programmable logic device is configured to include an application logic, an embe... | 03/15/2011 |
| 7898283 | Lightweight secure physically unclonable functions Embodiments generally describe techniques for an integrated circuit having a physical unclonable function (PUF). Example integrated circuits may include an input circuit having an input network, a configurable delay circuit having one or more configurable delay chai... | 03/01/2011 |
| 7865487 | System and method for providing remote access to events from a database access system In one embodiment, a database access system includes a remote client application, a database having a plurality of data records, and a data event agent. The database has a plurality of data records and is coupled to the data event agent. The data event agent is remo... | 01/04/2011 |
| 7863926 | Device forming a logic gate for minimizing the differences in electrical or electro-magnetic behavior in an integrated circuit manipulating a secret An electrical device having a logic gate whose consumption is independent from its input data and its logic state. To this end, the device uses logic means forming switches. The interest in having a device of this type is, for example, to protect chip cards and othe... | 01/04/2011 |
| 7847581 | Device for protecting an integrated circuit against a laser attack An integrated circuit including a substrate of a semiconductor material having first and second opposite surfaces and including active areas leveling the first surface. The integrated circuit includes a device of protection against laser attacks, the protection devi... | 12/07/2010 |
| 7834652 | Method and devices for storing a security key using programmable fuses In embodiment of the invention, a programmable logic device includes configuration memory adapted to be programmed with configuration data and a plurality of programmable fuses adapted to store a security key for use with configuration data. The security key include... | 11/16/2010 |
| 7821288 | Circuit protecting apparatus and associated method, and circuit protecting layer A circuit protecting apparatus is provided. The circuit protecting apparatus comprises a selecting module, a routing module, a processing module, and a controlling module. The selecting module selects for each of a plurality of a minimum-sized routing region a routi... | 10/26/2010 |
| 7804319 | Deliberate destruction of integrated circuits A method is provided for intentionally permanently disabling a target device. The target device comprises an integrated circuit having one or more electronic devices, where the target device is disabled by destroying at least one or more electronic devices. The meth... | 09/28/2010 |
| 7795899 | Enabling on-chip features via efuses Systems and methods for enabling on-chip features via efuses. A system comprises an electronic fuse (Efuse) array (EFA) coupled to each features capability register (FCR) within an instantiated computational block. The EFA comprises a plurality of rows wherein progr... | 09/14/2010 |
| 7791365 | Remotely configurable chip and associated method A method for configuring a chip having a plurality of on-chip configurable features. The plurality of on-chip configurable features is disabled before delivery of the chip to a new location. The chip is delivered to a new location where a unique hardware identifier ... | 09/07/2010 |
| 7768293 | Authentication for information provided to an integrated circuit A system for authentication of information provided to an integrated circuit, a method for rights management of an integrated circuit, and a method for configuring a programmable logic device are described. A memory is coupled to a programmable logic device. The mem... | 08/03/2010 |
| 7733117 | Method for protecting a security real time clock generator and a device having protection capabilities A device having protection capabilities, the device includes a voltage supply unit that is connected to an integrated circuit and provides a supply voltage to the integrated circuit; wherein the integrated circuit includes: a security real time clock generator that ... | 06/08/2010 |
| 7724022 | Implementing enhanced security features in an ASIC using eFuses A method and eFuse circuit for implementing enhanced security features using eFuses, such as disabling selected predefined test, debug, and mission security functions used in application-specific integrated circuits (ASICs), and a design structure on which the subje... | 05/25/2010 |
| 7724021 | Method and device for programmable power supply with configurable restrictions The invention involves a programmable power supply device with configurable restrictions to the programmability of the power supply device, wherein the programmable power supply device comprises a number of freeze/programmability levels, each freeze/programmability ... | 05/25/2010 |
| 7701244 | False connection for defeating microchip exploitation An integrated circuit assembly and associated method of detecting microchip tampering may include multiple connections in electrical communication with a conductive layer. Defensive circuitry may inhibit analysis of the microchip where a connection no longer connect... | 04/20/2010 |
| 7675313 | Methods and systems for storing a security key using programmable fuses Systems and methods are disclosed herein to provide improved security key techniques for programmable logic devices. For example, in accordance with an embodiment of the present invention, a method of providing data security for a programmable logic device (PLD) inc... | 03/09/2010 |
| 7656184 | Detecting counterfeit products In some embodiments an indication of an intended use of a logic device is stored in a register of the logic device, and any further programming of the register is prevented. Other embodiments are described and claimed. ... | 02/02/2010 |
| 7622944 | Method to reduce power in active shield circuits that use complementary traces The present invention provides a method and apparatus for securing an integrated circuit. A pair of conductive security traces are arranged on an integrated circuit. Driver means provide complementary HIGH and LOW voltage levels to a respective first end of each of ... | 11/24/2009 |
| 7592829 | On-chip storage of secret information as inverse pair An integrated circuit comprising a processor and memory storing: secret information accessible via a first address, the secret information comprising a string of bit values; an inverse-string accessible via a second address, the inverse-string comprising a string of... | 09/22/2009 |
| 7535249 | Authentication for information provided to an integrated circuit A system for authentication of information provided to an integrated circuit, a method for rights management of an integrated circuit, and a method for configuring a programmable logic device are described. A memory is coupled to a programmable logic device. The mem... | 05/19/2009 |
| 7532027 | Deliberate destruction of integrated circuits A method is provided for intentionally permanently disabling a target device. The target device comprises an integrated circuit having one or more electronic devices, where the target device is disabled by destroying at least one or more electronic devices. The meth... | 05/12/2009 |
| 7479798 | Selectively disabled output Circuits, methods, and apparatus are directed to an integrated circuit having a disabling element that can disable a reading of data from the circuit. Once the disabling element is set to not allow a reading of the data, the disabling element cannot be changed to al... | 01/20/2009 |
| 7453281 | Integrated circuit with anti-counterfeiting measures An anti-counterfeiting circuit that is incorporated into an authentic integrated circuit (IC) design, which induces a random failure in a counterfeited IC when the counterfeit IC is manufactured from a reverse-engineered authentic IC. The anti-counterfeiting circuit... | 11/18/2008 |
| 7442583 | Using electrically programmable fuses to hide architecture, prevent reverse engineering, and make a device inoperable Techniques and systems whereby operation of and/or access to particular features of an electronic device may be controlled after the device has left the control of the manufacturer are provided. The operation and/or access may be provided based on values stored in n... | 10/28/2008 |
| 7372304 | System and method for glitch detection in a secure microcontroller An apparatus includes a plurality of macrocells formed from logic capable of performing one or more functions. The apparatus also includes a clock tree capable of receiving a clock signal and providing at least one copy of the clock signal to each macrocell. The clo... | 05/13/2008 |
| 7372290 | System and method for using dummy cycles to mask operations in a secure microcontroller A secure device includes a memory capable of storing information. The secure device also includes a secure microcontroller capable of securing the information in the memory. The secure microcontroller includes a plurality of registers. The secure microcontroller als... | 05/13/2008 |
| 7368935 | Tamper response system for integrated circuits A tamper response system to protect intellectual property is provided. In one embodiment, the tamper response system includes at least one sensor adapted to sense tamper activity and a tamper circuit. The tamper circuit is coupled to receive tamper signals from the ... | 05/06/2008 |
| 7366860 | Storage device configured to sequentially input a command A storage device is capable of sequentially inputting a command, which includes address information and attached information, from an information processor through an input/output unit. The storage device includes a storage unit for storing data; an extractor for ex... | 04/29/2008 |
| 7366306 | Programmable logic device that supports secure and non-secure modes of decryption-key access Described are programmable logic devices that decrypt proprietary configuration data using on-chip decryption keys. The keys are stored in a key memory that can be operated in a secure mode or a non-secure mode. The non-secure mode allows the decryption keys to be r... | 04/29/2008 |
| 7363564 | Method and apparatus for securing communications ports in an electronic device An apparatus comprises at least one port for coupling signals to the apparatus, a mode selector for setting the apparatus to a normal mode or a debug mode, and a port control for controlling access to secure information in the apparatus through the port in accordanc... | 04/22/2008 |
| 7363501 | Semiconductor integrated circuit with function to manage license information A semiconductor integrated circuit includes one or more function blocks, a nonvolatile memory unit which stores therein coded license information, and a decoder circuit which decodes the license information stored in the nonvolatile memory unit, and makes one of the... | 04/22/2008 |
