Patent application number | Description | Published |
20090122984 | SECURE MOBILE TELEPHONY - An system for and method of providing end-to-end encrypted real-time phone calls using a commodity mobile phone and without requiring service provider cooperation is presented. The system and method improve upon prior art techniques by omitting any requirement for mobile phones that are specially manufactured to include end-to-end encryption functionality. | 05-14-2009 |
20090169013 | SYSTEM FOR AND METHOD OF CRYPTOGRAPHIC PROVISIONING - A system for and method of securely provisioning a module with cryptographic parameters, such as cryptographic keys and key tables, is presented. Such modules may be used to enable encrypted communications between mobile phones to which they are coupled. The system and method prevent a malevolent individual involved in manufacturing the modules from compromising the security of the module. In particular, the modules are provisioned by an entity different from the manufacturer. | 07-02-2009 |
20090204393 | Systems and Methods For Adaptive Multi-Rate Protocol Enhancement - A method of processing a codec sample is provided. The method includes: removing from a first portion of the codec sample, a first number of first information bits. The first information bits are indicative of frame information associated with the codec sample. The method also includes inserting at the first portion of the codec sample from a second portion of the codec sample, a second number of data bits. The first number of the first information bits is greater than or equal to the second number of the data bits. The method also includes removing the second portion of the codec sample. The method may also include encrypting and decrypting the codec sample. In some embodiments, the codec sample is an adaptive multi-rate codec sample. In some embodiments, the adaptive multi-rate codec sample is a 5.15 mode adaptive multi-rate codec sample. | 08-13-2009 |
20090268902 | SYSTEM FOR AND METHOD OF CRYPTOGRAPHIC PROVISIONING - A system for and method of securely provisioning a module with cryptographic parameters, such as cryptographic keys and key tables, is presented. Such modules may be used to enable encrypted communications between mobile phones to which they are coupled. The system and method prevent a malevolent individual involved in manufacturing the modules from compromising the security of the module. In particular, the modules are provisioned by an entity different from the manufacturer. | 10-29-2009 |
20100031063 | System for and Method of Remote Secure Backup - Systems and methods for registering a module for backup, backing up a module, and restoring a backed up module are provided. | 02-04-2010 |
20110044453 | SYSTEM AND METHOD OF ENCRYPTED MEDIA ENCAPSULATION - A system for and method of media encapsulation is presented. The method may include receiving, via an audio digitizer, a plurality of packets of data and compressing, via a codec, the plurality of packets of data. The method may also include queuing the plurality of packets of data in a queue and encrypting, via a filter, payloads of at least two of the plurality of packets of data in the queue into a single payload. The method further include transmitting the single payload in a single encrypted data packet. | 02-24-2011 |
20130282904 | SYSTEMS AND METHODS FOR ENABLING SECURE MESSAGING, COMMAND, AND CONTROL OF REMOTE DEVICES, COMMUNICATED VIA A SHORT MESSAGE SERVICE OR OTHER MESSAGE ORIENTED COMMUNICATIONS MEDIUMS - Given the rise in popularity of communicating personal, private, sensitive, or vital peer-to-peer or peer-to-group information over potentially insecure text messaging infrastructure, it would be desirable to provide a solution that enables the exchange of this type of information securely over at least one path via data and/or voice networks. Furthermore, it would be highly desirable to enable access to the secure exchange of information over the at least one path by a given entity, as well as other computer applications that the given entity may use. | 10-24-2013 |
20130346750 | SYSTEM AND METHOD TO PROVIDE SECURE MULTIMEDIA MESSAGING BETWEEN PEER SYSTEMS - A lightweight solution enables the exchange of multimedia information in a secure manner. Exchanged cryptographic material can be used to encipher multimedia message-oriented communications between devices. This lightweight solution can be used by common off the shelf devices such as smartphones, tablets, feature phones, or special purpose machine to machine devices for private communications, such as command and control, location services, video, audio, electronic attachments, etc. using insecure voice or data communication paths, such as MMS. | 12-26-2013 |
20140025952 | HIDING CIPHERTEXT USING A LINGUISTICS ALGORITHM WITH DICTIONARIES - Encrypted communications is made to appear to be normal text so as to avoid undue attention to either the sender or recipient. Information can be hidden or embedded in innocuous documents using steganography wherein the information is masked within a larger document. Other approaches would translate the ciphertext into a form of normal looking text that would in effect be gibberish but would use normal words in at least one native language. There are many tradeoffs and benefits to be considered when attempting any form of encrypted communications. | 01-23-2014 |
Patent application number | Description | Published |
20110258504 | TEST ACCESS MECHANISM FOR DIAGNOSIS BASED ON PARTITIOINING SCAN CHAINS - Disclosed are representative embodiments of methods, apparatus, and systems for partitioning-based Test Access Mechanisms (TAM). Test response data are captured by scan cells of a plurality scan chains in a circuit under test and are compared with test response data expected for a good CUT to generate check values. Based on the check values, partition pass/fail signals are generated by partitioning scheme generators. Each of the partitioning scheme generators is configured to generate one of the partition pass/fail signals for one of partitioning schemes. A partitioning scheme divides the scan cells into a set of non-overlapping partitions. Based on the partition pass/fail signals, a failure diagnosis process may be performed. | 10-20-2011 |
20120297264 | Root Cause Distribution Determination Based On Layout Aware Scan Diagnosis Results - Aspects of the invention relate to yield analysis techniques for generating root cause distribution information. Suspect information for a plurality of failing dies is first generated using a layout-aware diagnosis method. Based on the suspect information, potential root causes for the plurality of failing dies, and suspect feature weights and total feature weights for each of the potential root causes may then be determined. Next, the probability information of observing a particular suspect that is related to a particular root cause may be extracted. Finally, an expectation-maximization analysis may be conducted for generating the root cause distribution information based on the probability information and the suspect information. Heuristic information may be used to prevent the analysis from over-fitting. | 11-22-2012 |
20130024830 | Fault Diagnosis Based On Design Partitioning - Aspects of the invention relate to techniques for fault diagnosis based on circuit design partitioning. According to various implementations of the invention, a circuit design of a failing die is first partitioned into a plurality of sub-circuits. The sub-circuits may be formed based on fan-in cones of observation points. Shared gate ratios may be used as a metric for adding fan-in cones of observation points into a sub-circuit. Based on test patterns and the sub-circuits, sub-circuit test patterns are determined. Fault diagnosis is then performed on the sub-circuits. The sub-circuit fault diagnosis comprises extracting sub-circuit failure information from the failure information for the failing die. The sub-circuit fault diagnosis may employ fault-free values for boundary gates in the sub-circuits. | 01-24-2013 |
20130145213 | Dynamic Design Partitioning For Diagnosis - Aspects of the invention relate to techniques for fault diagnosis based on dynamic circuit design partitioning. According to various implementations of the invention, a sub-circuit is extracted from a circuit design based on failure information of one or more integrated circuit devices. The extraction process may comprise combining fan-in cones of failing observation points included in the failure information. The extraction process may further comprise adding fan-in cones of one or more passing observation points to the combined fan-in cones of the failing observation points. Clock information of test patterns and/or layout information of the circuit design may be extracted and used in the sub-circuit extraction process. The extracted sub-circuit may then be used for diagnosing the one or more integrated circuit devices. | 06-06-2013 |
20140059511 | Generating Root Cause Candidates For Yield Analysis - Aspects of the invention relate to yield analysis techniques for generating root cause candidates for yield analysis. With various implementations of the invention, points of interest are first identified in a layout design. Next, regions of interest are determined for the identified points of interest. Next, one or more properties are extracted from the regions of interest. Based at least on the one or more properties, diagnosis reports of failing devices fabricated according to the layout design are analyzed to identify probable root causes. | 02-27-2014 |
20140101506 | TEST ACCESS MECHANISM FOR DIAGNOSIS BASED ON PARTITIONING SCAN CHAINS - Disclosed are representative embodiments of methods, apparatus, and systems for partitioning-based Test Access Mechanisms (TAM). Test response data are captured by scan cells of a plurality scan chains in a circuit under test and are compared with test response data expected for a good CUT to generate check values. Based on the check values, partition pass/fail signals are generated by partitioning scheme generators. Each of the partitioning scheme generators is configured to generate one of the partition pass/fail signals for one of partitioning schemes. A partitioning scheme divides the scan cells into a set of non-overlapping partitions. Based on the partition pass/fail signals, a failure diagnosis process may be performed. | 04-10-2014 |
20140164859 | Dynamic Design Partitioning For Scan Chain Diagnosis - Aspects of the invention relate to techniques for chain fault diagnosis based on dynamic circuit design partitioning. Fan-out cones for scan cells of one or more faulty scan chains of a circuit design are determined and combined to derive a forward-tracing cone. Fan-in cones for scan cells of the one or more faulty scan chains and for failing observation points of the circuit design are determined and combined to derive a backward-tracing cone. By determining intersection of the forward-tracing cone and the backward-tracing cone, a chain diagnosis sub-circuit for the test failure file is generated. Using the process, a plurality of chain diagnosis sub-circuits may be generated for a plurality of test failure files. Scan chain fault diagnosis may then be performed on the plurality of chain diagnosis sub-circuits with a plurality of computers. | 06-12-2014 |
20150135151 | Canonical Forms Of Layout Patterns - Aspects of the disclosed technology relate to techniques for determining canonical forms of layout patterns. Coordinates of vertices of geometric elements in a window of a layout design are first transformed into new coordinates of the vertices, wherein the coordinates of vertices do not comprise clipped coordinates and the transforming comprises: performing a translation on the coordinates of vertices based on differences between maximum and minimum X/Y coordinate values of the vertices. Based on sums of X/Y coordinate values of the new coordinates of the vertices, a canonical form of the geometric elements is determined. The canonical form coordinates of the vertices may then be determined and sorted. The sorted canonical form coordinates may be employed for pattern matching. | 05-14-2015 |
20150234978 | Cell Internal Defect Diagnosis - Various aspects of the disclosed technology relate to cell internal defect diagnosis techniques. Defect candidates are first determined based on path-tracing through a circuit design. Then, cell internal defect suspects are determined from the defect candidates based on simulating failing test patterns by using cell internal fault models. The defect candidate determination may be further based on simulating the failing test patterns by using conventional fault models. The cell internal defect suspect determination may be further based on simulating passing test patterns by using the cell internal fault models. | 08-20-2015 |