Patent application number | Description | Published |
20090022513 | Systems and methods for remanufacturing imaging components - Techniques for remanufacturing an imaging cartridge include providing the imaging cartridge including a memory element storing cartridge usage data, reading from the memory element the cartridge usage data, analyzing the cartridge usage data to produce results, and determining, based on the results, if a component of the imaging cartridge needs to be replaced. A cartridge memory interface device includes processing circuitry adapted for reading cartridge usage data from the memory element of the imaging cartridge. The processing circuitry is further adapted for analyzing the cartridge usage data to produce results for determining if any components of the imaging cartridge need to be replaced. A user interface displays the results to a user. | 01-22-2009 |
20120313664 | Semiconductor Device Having Features to Prevent Reverse Engineering - It is desirable to design and manufacture electronic chips that are resistant to modern reverse engineering techniques. Disclosed is a method and device that allows for the design of chips that are difficult to reverse engineer using modern teardown techniques. The disclosed device uses devices having the same geometry but different voltage levels to create different logic devices. Alternatively, the disclosed uses devices having different geometries and the same operating characteristics. Also disclosed is a method of designing a chip using these devices. | 12-13-2012 |
20130099899 | Systems and Methods for Verifying a Chip - Disclosed is a system and method for verifying a chip having a memory. Remanufacturers of imaging devices, such as inkjet printers or electrostatic printers, often have to use a replacement chip in order to reuse an imaging cartridge. It is desirable to have a system and method for determining if the replacement chip is suitable for use with a specific imaging cartridge. Also, it may be desirable to confirm that the chip was manufactured by a specific manufacturer. The disclosed system and method allow the remanufacturer a reliable and efficient way to verify chips. | 04-25-2013 |
20130320491 | Semiconductor Device Having Features to Prevent Reverse Engineering - It is desirable to design and manufacture electronic chips that are resistant to modern reverse engineering techniques. Disclosed is a method and device that allows for the design of chips that are difficult to reverse engineer using modern teardown techniques. The disclosed device uses devices having the same geometry but different voltage levels to create different logic devices. Alternatively, the disclosed uses devices having different geometries and the same operating characteristics. Also disclosed is a method of designing a chip using these devices. | 12-05-2013 |
20140185073 | Systems and Methods for Universal Imaging Components - A method of operating a cartridge chip installed in an imaging device includes: causing, by the cartridge chip, the imaging device to enter an error condition; monitoring the timing or sequence of communication signals received from the imaging device during at least a portion of the error condition; and operating, based on the timing or sequence of the communication signals received from the imaging device during at least a portion of the error condition, in a first mode of operation compatible with a first type of imaging device or in a second mode of operation compatible with a second type of imaging device. | 07-03-2014 |
20140198554 | Semiconductor Device Having Features to Prevent Reverse Engineering - A ROM circuit includes a first N channel transistor having an output and having device geometry and device characteristics adapted to bias the output at a predetermined level when a P channel circuit is connected to the first N channel transistor; a pass transistor connected between the output and a data bus, the pass transistor connected to a word line, the word line adapted to turn ON the pass transistor when the word line is asserted; and the P channel circuit connected to the data bus and adapted to provide leakage current to charge a gate in the first N channel transistor when pass transistor is turned ON. | 07-17-2014 |
20140294422 | Systems and Methods for Universal Imaging Components - A method of operating a cartridge chip installed in an imaging device includes: causing, by the cartridge chip, the imaging device to enter an error condition; monitoring the timing or sequence of communication signals received from the imaging device during at least a portion of the error condition; and operating, based on the timing or sequence of the communication signals received from the imaging device during at least a portion of the error condition, in a first mode of operation compatible with a first type of imaging device not having a list of banned serial numbers or in a second mode of operation compatible with a second type of imaging device having a list of banned serial numbers. | 10-02-2014 |
20150042457 | Systems and Methods for Verifying a Chip - Disclosed is a system and method for verifying a chip having a memory. Remanufacturers of imaging devices, such as inkjet printers or electrostatic printers, often have to use a replacement chip in order to reuse an imaging cartridge. It is desirable to have a system and method for determining if the replacement chip is suitable for use with a specific imaging cartridge. Also, it may be desirable to confirm that the chip was manufactured by a specific manufacturer. The disclosed system and method allow the remanufacturer a reliable and efficient way to verify chips. | 02-12-2015 |
20150071434 | Secure Semiconductor Device Having Features to Prevent Reverse Engineering - An encryption circuit for receiving an input of a first digital key and plaintext data, the encryption circuit for mathematically manipulating the digital key and the plaintext data to encrypt the plaintext data into encrypted data, wherein at least a portion of the encryption circuit comprises IBG circuitry. A decryption circuit for receiving an input of a second digital key and the encrypted data, the decryption circuit for mathematically manipulating the digital key and the encrypted data to decrypt the encrypted data into the plaintext data, wherein at least a portion of the decryption circuit comprises IBG circuitry | 03-12-2015 |
20150084195 | SEMICONDUCTOR DEVICE HAVING FEATURES TO PREVENT REVERSE ENGINEERING - An electronic device includes: a base layer; a first layer located at least partially over the base layer; a second layer located at least partially over the first layer; a first metal layer located at least partially over the second layer, wherein one or more signal outputs of the electronic device are formed in the first metal layer; and a second metal layer located at least partially over the first metal layer, wherein one or more gate connection is formed in the second metal layer, wherein removing a portion of the second metal layer disrupts at least one gate connection and deactivates the device. | 03-26-2015 |