Electric Signal Masking Patents (Class 380/252)
  • Patent number: 10417630
    Abstract: A contactless payment device and method streams a sequence of magnetic-field pulses directly to two magnetic-stripe read heads of a point-of-sale terminal. The stream of pulses includes essential information needed to approve a transaction. The essential information is structured for a primary “channel” associated with one of the read heads. A series of “proxy” bits are included in the stream in order to satisfy the data collection requirements for a secondary channel associated with the other read head. The proxy bits are included in a custom bit stream that may be used to improve acceptance of payment transmission data at a POS terminal.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: September 17, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Zhujie (Luke) Liu
  • Patent number: 10304150
    Abstract: A system for generating and detecting watermarks within a video frame (e.g., video content) is described to determine whether a data interruption has occurred. In one or more implementations, the system includes a generation module communicatively coupled to a video source and a watermark detection module configured to receive a plurality of video watermarks. The watermarking detection module is configured to determine whether a watermark embedded in a current (e.g., a second) video frame is different from a watermark embedded in the previous (e.g., a first) video frame. The watermarking detection module is configured to generate an error signal when the watermark embedded in the current (e.g., a second) video frame is not different than the watermark embedded in the previous (e.g., a first) video frame to indicate a data interruption event has occurred.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: May 28, 2019
    Assignee: MAXIM INTEGRATED PRODUCTS, INC.
    Inventor: Kevin J. Witt
  • Patent number: 10271209
    Abstract: Some embodiments provide a method for establishing a secured session with backward security between a first device and a second device. In some embodiments, the method establishes a communication session between the first and second devices using shared keys stored at the first and second devices. The method exchanges encrypted data between the first and second devices as a part of the communication session. The method, upon completion of the communication session, modifies the shared key at the first device in a predictable way. The shared key is modified at the second device in the same predictable way. The method then stores the modified shared key at the first device. The modified shared key cannot be used to decrypt any portion of the encrypted data of the current and previous communication sessions.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: April 23, 2019
    Assignee: APPLE INC.
    Inventors: Mitchell D. Adler, Yannick L. Sierra, Ganesha A. G. Batta, Michael Giles, Akshay M. Srivatsa, Craig P. Dooley, Sriram Hariharan, Robert D. Watson
  • Patent number: 10248199
    Abstract: Examples relating to calibrating an estimated gaze location are disclosed. One example method comprises monitoring the estimated gaze location of a viewer using gaze tracking data from a gaze tracking system. Image data for display via a display device is received, the image data comprising at least one target visual and target visual metadata that identifies the at least one target visual. The target visual metadata is used to identify a target location of the at least one target visual. The estimated gaze location of the viewer is monitored and a probability that the viewer is gazing at the target location is estimated. The gaze tracking system is calibrated using the probability, the estimated gaze location and the target location to generate an updated estimated gaze location of the viewer.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: April 2, 2019
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Weerapan Wilairat, Vaibhav Thukral, David Nister, Morgan Kolya Venable, Bernard James Kerr, Chris Aholt
  • Patent number: 10223356
    Abstract: A content management system (CMS) and a translation management system (TMS) can utilize content dimensions for content items to manage and translate the content items between languages. Machine and human translations of complex dynamic content can also be improved by pre-rendering the content to remove localization-related syntax prior to machine or human translation. Content items can also be scored as to their suitability for localization prior to translation, and translation can be skipped for content items that do not have a sufficiently high score. Semantic and natural language processing (NLP) techniques can also be utilized for content categorization and routing. Translations of content items can also be continuously refined and higher quality re-translated content can be provided in an automated fashion.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: March 5, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Thibault Pierre Seillier, Pallami Bhattacharjee, Paul Christopher Cerda, William Joseph Kaper, Paul Kasper, Kelly Duggar Wiggins
  • Patent number: 10185843
    Abstract: Methods and systems for activating a display security application and initiating a privacy measure on a computing device are provided. A user opens and turns on an application on the computing device, which monitors the security of the screen. The security feature recognizes when an unauthorized user is within viewing range of the display of the computing device. The user is prompted to initiate a privacy measure or ignore the unauthorized user. If the user initiates the privacy measure, the unauthorized user is prevented from seeing the content on the display. The user may terminate the privacy measure when the unauthorized user is no longer within viewing range of the display.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: January 22, 2019
    Assignee: SONY INTERACTIVE ENTERTAINMENT AMERICA LLC
    Inventor: Shawn Moore
  • Patent number: 10169552
    Abstract: Systems for dynamic watermarking within a cloud-based collaboration environment. Storage facilities are managed by servers to provide cloud-based storage services to two or more client entities as a service across a network. The servers maintain versions of editable documents or photo images or video clips using a version indication. Dynamic watermarking applies a first watermark image to a first version of the editable document and grants edit access to a first client entity of the two or more client entities. While the first client entity has edit access to the first version of the editable document the system generates a second version of the editable document and applies a second watermark image to the second version of the editable document before delivering the second version to a second client entity. A security watermark is based on a user credential, and a leak source can be determined based the user credential.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: January 1, 2019
    Assignee: Box, Inc.
    Inventors: Winston Yih-Jiun Huang, Bryan Huh, Pierre-Alexandre Masse, Justin Tim Peng, Victor De Vansa Vikramaratne, Jeremy Glassenberg, Florian Jourda, Hieu Minh Nguyen
  • Patent number: 10078495
    Abstract: A method and an apparatus for generating a source-independent quantum random number are disclosed. The method includes: receiving by a receiver a photon signal sent by a source and converting by the receiver a multi-photon signal contained in the photon signal into a single-photon signal equivalent to the multi-photon signal; modulating a single-photon signal in an X basis or a Z basis, and performing a projection measurement on the X basis or the Z basis randomly; calculating an error rate of the source according to a measurement result of the Z basis; obtaining a partially random binary string according to a measurement result of the X basis; and obtaining and processing a minimal entropy of the partially random binary string so as to obtain a completely random binary string.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: September 18, 2018
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Xiongfeng Ma, Xiao Yuan
  • Patent number: 10050776
    Abstract: Cryptographic circuitry masks sensitive data values. The masking includes extracting unique combinations of random mask values from one or more sets of random mask values. Each sensitive data value is masked using a respective unique combination. The unique combinations have a combination class greater than or equal to a determined integer corresponding to a protection-level against side-channel attacks, and a number of unique combinations greater than or equal to a number of the sensitive data values. A number of random mask values in the one or more sets of random mask values is based on the number of unique combinations and the class of the plurality of unique combinations.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: August 14, 2018
    Assignee: STMICROELECTRONICS S.R.L.
    Inventor: Filippo Melzani
  • Patent number: 9992193
    Abstract: A high-safety user multi-authentication system, comprising: a server having a user habit information and a key generator for generating a real key corresponding to the user habit information and at least one bait key; and a user application unit disposed on a communication device having a user interface, a key receiving unit for receiving the real key and the at least one bait key from the server, an OTP (one time password) generator for generating a real OTP based on the real key and at least one bait OTP based on the at least one bait key; wherein the real OTP is provided to the user interface when the communication device is operated according to the user habit information.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: June 5, 2018
    Inventor: Kuang-Yao Lee
  • Patent number: 9959694
    Abstract: Security systems for protecting assets are described, including password-based security systems that can provide different levels of access responsive to entry of a primary or secondary password. In some versions, user-configurable security rules can provide customized responses to entry of primary or secondary passwords, including feigned or limited access, security alerts, etc. Passwords comprising overt and covert components can be used to provide enhanced security and improved user control over system response. Improved security systems involving transactions between multiple parties are also considered, with options for user-customized security rules including primary and secondary passwords, and reverse challenge and response methods. Systems for Limited Use Credentials are also disclosed to reduce the risk of identity theft.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: May 1, 2018
    Inventor: Jeffrey Dean Lindsay
  • Patent number: 9916503
    Abstract: A method to determine whether a user is experiencing difficulty visually resolving content is disclosed. The method includes capturing one or more images of the user while the user is viewing the content. The method also includes obtaining facial parameters related to a visual acuity of the user from the captured one or more images. The method further includes determining whether the user is experiencing difficulty visually resolving the content based on the obtained one or more facial parameters. The method is implemented in a device such as a smartphone, tablet computer, or television. The facial parameters include information about the extent to which the user has their eyes open or closed, whether the user is wearing glasses, and the distance at which the user is viewing the content.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: March 13, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Young Eun Cho
  • Patent number: 9894065
    Abstract: The present invention relates to a security management method and an apparatus for group communication when a terminal interacts and communicates with a mobile communication system. The security management method for group communication performed in a server, which manages the group communication in the mobile communication system according to one embodiment of the present invention, includes the steps of: generating a session security key for session protection in the group communication, and mapping the session security key to a group identifier for identifying a specific group to which a terminal using the group communication belongs; transmitting the group identifier and the session security key to the terminal; and generating a traffic key for protecting traffic and transmitting the group identifier and the traffic key to the terminal.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: February 13, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Kyung-Joo Suh
  • Patent number: 9723000
    Abstract: The present invention relates generally to a system and method of securing content from on networked enabled communication devices wherein the user's identity is authenticated using a verification dongle with biometric technology, which upon verification a secure working environment is established, by closing the ports and effectively pausing the majority, if not all external tasks until the current secured task session is selectively completed by the user. Upon completion of the secured task session, the secure working environment is closed and the ports are reopened. In this manner, sensitive confidential and/or proprietary information may be edited and/or transmitted to a third party in a secure manner.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: August 1, 2017
    Inventor: Isaac S. Daniel
  • Patent number: 9628265
    Abstract: The invention discloses an encryption processing device and a method capable of defending differential power analysis attack. In the encryption processing device provided by an embodiment of the invention, a SecMasking unit is achieved in a structure that a universal random masking technique services as a basis; a SecPrepare unit is achieved in a structure that a bitwise XOR device services as a basis; and a SecSbox unit is achieved in a mode that table look-up results are updated longitudinally and transversely in real time on the basis of a random masking technique. According to the encryption processing device and method, work power consumption of a cryptographic operation equipment circuit can have no relation with operation data and calculation operations. In addition, the encryption processing device and method can be widely used for encrypting and decrypting operation cryptographic equipment needing high safety performance.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: April 18, 2017
    Assignee: SHENZHEN STATE MICRO TECHNOLOGY CO., LTD.
    Inventors: Liangqing Wang, Dawu Gu, Zheng Guo, Junrong Liu, Feng Deng
  • Patent number: 9608802
    Abstract: A new cryptographic technique is disclosed, called decoy bits method, which can be used to obtain near ideal information theoretic security in both quantum and classical key generation and data encryption, not only for raw security but also under known-plaintext attacks. The technique relates to a method of data encryption by insertion of random bits, called decoy bits, into a data sequence whereby the decoy bits are discarded upon decryption. The positions of the decoy bits are determined by a decoy position determining mechanism. This method can be used in conjunction with other standards of encryption to increase security.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: March 28, 2017
    Assignee: Quantum Advance Technology, Inc.
    Inventor: Horace P Yuen
  • Patent number: 9594918
    Abstract: A computer-implemented method of protecting digital data includes applying a key derivation function to a first value to generate a first derived key, the first value being equal to or derived from a first input password. The first derived key is combined with the digital data to generate a protected record stored in the computer. Subsequently, the key derivation function is applied to a second value to generate a second derived key, the second value being equal to or derived from a second input password. The protected record is processed using the second derived key to permit access to the digital data when the second derived key matches the first derived key. The key derivation function includes iterations of a two-stage hashing operation creating and using an array of memory blocks whose size is specified independently of the number of iterations to decouple processing and memory requirements.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: March 14, 2017
    Assignee: EMC IP Holding Company LLC
    Inventors: Peter Alan Robinson, Sean Parkinson, Eric Young
  • Patent number: 9577974
    Abstract: In one example, an electronic device may be configured to receive over a network a user selection of media information that corresponds to a media streaming server, wherein the received user selection corresponds to a first account of the media streaming server. The electronic device may be configured to determine a second account that corresponds to an electronic messaging server in response to receiving the user selection. The second account may be different than the first account. The electronic device may be configured to cause a message including at least a portion of the media information to be electronically delivered to the electronic messaging server using the second account.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: February 21, 2017
    Assignee: INTELLECTUAL VENTURES FUND 79 LLC
    Inventor: Reda Harb
  • Patent number: 9552062
    Abstract: Systems and methods for presenting actual data on a display device based on eye-tracking data. An eye-tracking engine receives sensed data from an eye-tracking device, determines a movement status of an eye based on the sensed data, and determines a display configuration based on the determined movement status. The display configuration is output on the display device and includes masking data when the determined movement status indicates the eye is in motion.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: January 24, 2017
    Assignee: EchoStar UK Holdings Limited
    Inventor: Mark Gohl
  • Patent number: 9471178
    Abstract: An electronic device includes a touch panel that detects operation point coordinates of touch input by a user and a line-of-sight detection section that calculates the coordinates of a gaze point on the touch panel at which a line of sight of the user is directed in a specific time range from a time point of the touch input on the touch panel by the user. The electronic device further includes a line-of-sight correction area calculation section that calculates a line-of-sight correction area in a specific range from the coordinates of the gaze point on the touch panel. The electronic device also includes an operation coordinate line-of-sight correction section that a) changes the operation point coordinates to the coordinates of the gaze point if the operation point coordinates are within the line-of-sight correction area; and b) does not change the operation point coordinates if the operation point coordinates are not within the line-of-sight correction area.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: October 18, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Minoru Takahashi, Ryosuke Ogishi, Tsuyoshi Nitta, Masato Tanba
  • Patent number: 9467860
    Abstract: An apparatus, method and computer-readable storage medium to efficiently connect to wireless access point(s). An electronic device may capture coded information. The coded information may include a security key to connect to a wireless access point, and the coded information may be an image, an audio clip, text, or a video. The coded information may be steganographically encoded. The coded information may be captured from a display of a second electronic device. The second electronic device may include the wireless access point.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: October 11, 2016
    Assignee: SAP SE
    Inventor: Wolfgang Dittrich
  • Patent number: 9401153
    Abstract: Audio signal processing enhances audio watermark embedding and detecting processes. Audio signal processes include audio classification and adapting watermark embedding and detecting based on classification. Advances in audio watermark design include adaptive watermark signal structure data protocols, perceptual models, and insertion methods. Perceptual and robustness evaluation is integrated into audio watermark embedding to optimize audio quality relative the original signal, and to optimize robustness or data capacity. These methods are applied to audio segments in audio embedder and detector configurations to support real time operation. Feature extraction and matching are also used to adapt audio watermark embedding and detecting.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 26, 2016
    Assignee: Digimarc Corporation
    Inventors: Ravi K. Sharma, Brett A. Bradley, Shankar Thagadur Shivappa
  • Patent number: 9307333
    Abstract: A sound masking system for shaping the ambient noise level in a physical environment. The sound masking system comprises a networked and distributed system having a number of master units coupled together and to a control unit. One or more of the master units may include satellite sound masking units which function to reproduce the sound masking signal generated by the master sound masking unit. Each of the master units is addressable over the network by the control unit enabling the control unit to program the contour, spectral band, and gain characteristics of the sound masking output signal. The system may also include a remote control unit which provides the capability to tune and adjust each master sound masking unit in situ without requiring physical access through the ceiling installation.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: April 5, 2016
    Assignee: 777388 ONTARIO LIMITED
    Inventors: Klaus Moeller, Niklas Moeller, Mircea Rusu, Carl Derla
  • Patent number: 9165128
    Abstract: The present invention relates generally to a system and method of securing content from public display on mobile communication devices using an application program to categorize, encrypt and hide data providing added security in the event of loss or misuse, wherein the application program is configured for receiving a command to hide at least one content of a data category; storing and hiding the at least one content responsive to the command into a respective data category in a hidden directory by converting the content into concealed data, unavailable for display unless an alternate command is received and the user's identity is authenticated; displaying all content for the data category while excluding the concealed data from the display; and revealing the concealed data when the display area substantially adjacent to a corresponding icon for the data category is engaged on the display screen and the user's identity is verified.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: October 20, 2015
    Inventor: Isaac S. Daniel
  • Patent number: 9098696
    Abstract: A security appliqué provides a secure deployment environment (SDE) for a wireless communications device. The Security appliqué isolates the security features, requirements, and information security boundaries such that no hardware modifications are required to a wireless communications device. Rather, a security module thin client is provided to the wireless communications device to provide the Secure Deployment Environment (SDE). The wireless communications device is coupled to the security appliqué via the standard connection interface. Through the standard connection interface, the security appliqué provides the SDE for the wireless communications device without implementing modifications to the wireless communications device.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: August 4, 2015
    Assignee: Raytheon Company
    Inventors: Noel E. Johnson, Anne-Marie Buibish
  • Patent number: 9049094
    Abstract: Disclosed is a polybinary-signal generator in which correlative coding is applied to a plurality of fractional-bit-rate signals instead of being applied to a corresponding multiplexed full-bit-rate signal. The resulting coded fractional-bit-rate signals are variously delayed with respect to one another and then summed to generate a polybinary output signal. One beneficial feature of this architecture is that most circuit components of the polybinary-signal generator operate at the fractional bit rate, which helps to alleviate at least some of the technical difficulties associated with the design of radio-frequency circuits intended for relatively high bit rates. Another beneficial feature of this architecture is that the polybinary-signal generator also serves as a signal multiplexer.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: June 2, 2015
    Assignee: Alcatel Lucent
    Inventor: Jeffrey H. Sinsky
  • Publication number: 20150139420
    Abstract: A method for transmitting data in series includes producing a scrambled signal by applying a scrambling using a pseudo-random sequence to an incoming serial signal conveying the data and producing an outgoing serial signal from the scrambled signal. After each sequence of N consecutive bits at the same state in the scrambled signal, a dummy bit of reverse state is inserted in the outgoing signal.
    Type: Application
    Filed: October 8, 2014
    Publication date: May 21, 2015
    Inventors: Julien Saade, Abdelaziz Goulahsen
  • Patent number: 8964980
    Abstract: The present invention is directed to a system and method of distributing game play instructions to players during a game, more specifically a system and method for allowing a portable remote terminal and/or a game apparatus to dynamically transmit and/or receive in game instructions in real-time concerning game play instructions to be effected on the field or court, and to be distributed to one, a plurality, or all team players wearing a headgear configured to receive audio transmissions of the game play instructions from a game play apparatus, another headgear and/or the portable remote terminal.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: February 24, 2015
    Inventor: Isaac Sayo Daniel
  • Patent number: 8953800
    Abstract: A method is presented that uses steganographic codeword(s) carried in a speech payload in such a way that (i) the steganographic codeword(s) survive compression and/or transcoding as the payload travels from a transmitter to a receiver across at least one diverse network, and (ii) the embedded steganographic codeword(s) do not degrade the perceived voice quality of the received signal below an acceptable level. The steganographic codewords are combined with a speech payload by summing the amplitude of a steganographic codeword to the amplitude of the speech payload at a relatively low steganographic-to-speech bit rate. Advantageously, the illustrative embodiment of the present invention enables (i) steganographic codewords to be decoded by a compliant receiver and applied accordingly, and (ii) legacy or non-compliant receivers to play the received speech payload with resultant voice quality that is acceptable to listeners even though the steganographic codeword(s) remain in the received speech payload.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: February 10, 2015
    Assignee: Avaya Inc.
    Inventors: Anjur Sundaresan Krishnakumar, Lawrence O'Gorman
  • Patent number: 8934628
    Abstract: A method is to de-correlate electric signals emitted by an IC Card during computations as well as sensitive data involved in such computations. The method includes executing functions introducing respective electric signals which do not involve the sensitive data. Each of the functions is triggered by a timer having a value which is different at each step of executing the functions.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: January 13, 2015
    Assignee: STMicroelectronics International NV
    Inventors: Rosario Bosco, Vincenzo Pascariello
  • Patent number: 8923512
    Abstract: Described herein is a technology facilitating circumvention of dynamic and robust detection of one or more embedded-signals (e.g., watermark, copyright notice, encoded data, etc.) in one or more input carrier signals (e.g., multimedia stream, video stream, audio stream, data, radio, etc.).
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 30, 2014
    Assignee: Microsoft Corporation
    Inventors: Theodore C. Tanner, Jr., Martin G. Puryear, Steven E. Swenson
  • Patent number: 8913744
    Abstract: Confidential information included in image and voice data is filtered in an apparatus that includes an extraction unit for extracting a character string from an image frame, and a conversion unit for converting audio data to a character string. The apparatus also includes a determination unit for determining, in response to contents of a database, whether at least one of the image frame and the audio data include confidential information. The apparatus also includes a masking unit for concealing contents of the image frame by masking the image frame in response to determining that the image frame includes confidential information, and for making the audio data inaudible by masking the audio data in response to determining that the audio data includes confidential information. The playback unit included in the apparatus is for playing back the image frame and the audio data.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: December 16, 2014
    Assignee: Nuance Communications, Inc.
    Inventors: Seiji Abe, Mitsuru Shioya, Shigeki Takeuchi, Daisuke Tomoda
  • Patent number: 8908859
    Abstract: According to one embodiment, a cryptographic apparatus includes: cryptographic cores (“cores”), an assigning unit, a concatenating unit, and an output controlling unit. If a CTS flag thereof is on, each core encrypts using a symmetric key cipher algorithm utilizing CTS, while using a symmetric key. When an input of a CTS signal is received, the assigning unit assigns first input data to a predetermined core and turns on the CTS flag thereof. The concatenating unit generates concatenated data by concatenating operation data generated during encrypting the first input data, with second input data that is input immediately thereafter. The output controlling unit controls outputting the concatenated data to the predetermined core, outputting first encrypted data obtained by encrypting the concatenated data, and over outputting second encrypted data obtained by encrypting the first input data, and further turns off the predetermined core's CTS flag.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: December 9, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Koichi Fujisaki
  • Patent number: 8910243
    Abstract: An image display may be displayed by augmented reality on a remote controller. This may include identifying an electronic device having playable content, receiving information regarding a locked status of the playable content of the identified electronic device, and displaying, on a screen, an object indicating a locked status when the playable content of the identified electronic device requires a user authentication for playing the content. A user authentication input may be received and a determination may be made whether the received user authentication input matches a previously stored user authentication information. The playable content may be released from the locked status when it is determined that the received user authentication input matches the previously stored user authentication information, and information relating to the released playable content may be displayed.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: December 9, 2014
    Assignee: LG Electronics Inc.
    Inventors: Mingoo Kang, Haengjoon Kang, Jongsoon Park, Jinyung Park, Jongchul Kim, Junho Park
  • Patent number: 8897443
    Abstract: A method begins by a processing module receiving data for storage in a dispersed storage network (DSN) memory and obtaining watermarking information regarding a source of the data. The method continues with the processing module dispersed storage error encoding the data to produce a plurality of sets of encoded data slices and processing the plurality of sets of encoded data slices and marker slices to produce a plurality of sets of watermarked encoded data slices to have a pattern of encoded data slices and the marker slices in accordance with the watermarking information. The method continues with the processing module outputting the plurality of sets of watermarked encoded data slices to the DSN memory for storage therein.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: November 25, 2014
    Assignee: Cleversafe, Inc.
    Inventors: Gary W. Grube, Timothy W. Markison
  • Patent number: 8885823
    Abstract: A method for delivering encrypted content to a subscriber terminal on-demand through a communication network is provided. The method begins when SRM receives a request for content from the subscriber terminal. In response to the request, the SRM directs a video server to transmit the content as an unencrypted transport stream to an encryptor. The packets in the unencrypted transport stream include a header with a destination address associated with the subscriber terminal. The encryptor encrypts the content in the unencrypted transport stream to generate an encrypted transport stream. The encryptor also inserts in the packet headers of the packets in the encrypted transport stream the destination address associated with the subscriber terminal obtained from the packet headers in the unencrypted transport stream. Finally, the encrypted transport stream is transmitted to the subscriber terminal over the communication network.
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: November 11, 2014
    Assignee: General Instrument Corporation
    Inventors: Christopher Poli, Joseph M. Amorese, Robert Mack, Lawrence D. Vince, Charles A. Zimmerman
  • Publication number: 20140270169
    Abstract: A circuit for obscuring gate switching noise includes a synchronous clock source; an asynchronous clock source; at least one current source; and a random number generating circuit for receiving clock inputs from the synchronous clock source and the asynchronous clock source, the random number generating circuit generating randomly changing asynchronous digital control signals for controlling the current source.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Inventor: Vivien Delport
  • Patent number: 8811617
    Abstract: An efficient security related procedure is disclosed. A plurality of service data units (SDUs) having the same priority is multiplexed to one unit signal. The unit signal is ciphered using a mask generated by a first parameter combination. The receiver simultaneously deciphers the multiplexed service data units (SDUs), such that a Layer-2 (L2) processing time is efficiently reduced and the problems encountered by signals vulnerable to security can be efficiently solved.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: August 19, 2014
    Assignee: LG Electronics Inc.
    Inventors: Sun Hee Kim, Seung June Yi, Sung Jun Park, Sung Duck Chun
  • Patent number: 8804958
    Abstract: A method is provided for protecting data content against illegal copying. The data content is provided by an entertainment system and is output to output units in an authorized playback environment for playing back the data content. The method includes transmitting the data content in the authorized playback environment from the entertainment system to an output unit, and adding an interference signal to the data content such that, during playback of the data content outside the authorized playback environment a disruption is induced.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: August 12, 2014
    Assignee: Siemens Convergence Creators GmbH
    Inventors: Gabriel Gudenus, Gerald Schreiber
  • Patent number: 8798268
    Abstract: A system and methods for permitting open access to data objects and for securing data within the data objects is disclosed. According to one embodiment of the present invention, a method for securing a data object is disclosed. According to one embodiment of the present invention, a method for securing a data object is disclosed. The method includes the steps of (1) providing a data object comprising digital data and file format information; (2) embedding independent data into a data object; and (3) scrambling the data object to degrade the data object to a predetermined signal quality level. The steps of embedding and scrambling may be performed until a predetermined condition is met. The method may also include the steps of descrambling the data object to upgrade the data object to a predetermined signal quality level, and decoding the embedded independent data.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: August 5, 2014
    Assignee: Blue Spike, Inc.
    Inventors: Scott A. Moskowitz, Mike W. Berry
  • Patent number: 8774406
    Abstract: A masking addition operation apparatus for prevention of a side channel attack, includes a random value generation unit generating a first random value for a first input, second random value for a second input, and a summation random value. The masking addition operation apparatus includes an operation part performing an operation on the first and second random values, a previous carry input, and first and second masked random values generated based on the first and second random values. The masking addition operation apparatus includes a carry generator generating a carry input using a result of the operation part; and a summation bit generator generating a summation bit using the summation random value, the first and second random values, the previous carry input and the first and second masked random values.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: July 8, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yong-Je Choi, Doo Ho Choi, Taesung Kim, Kyunghee Oh, You Sung Kang, Ju Han Kim, Jeong Nyeo Kim, Hyun sook Cho
  • Patent number: 8767962
    Abstract: A system and methods for permitting open access to data objects and for securing data within the data objects is disclosed. According to one embodiment of the present invention, a method for securing a data object is disclosed. According to one embodiment of the present invention, a method for securing a data object is disclosed. The method includes the steps of (1) providing a data object comprising digital data and file format information; (2) embedding independent data into a data object; and (3) scrambling the data object to degrade the data object to a predetermined signal quality level. The steps of embedding and scrambling may be performed until a predetermined condition is met. The method may also include the steps of descrambling the data object to upgrade the data object to a predetermined signal quality level, and decoding the embedded independent data.
    Type: Grant
    Filed: August 11, 2012
    Date of Patent: July 1, 2014
    Assignee: Blue Spike, Inc.
    Inventors: Scott Moskowitz, Mike W. Berry
  • Patent number: 8762146
    Abstract: A system, including a processor to define opportunities for encoding a watermark into an audio stream having sections, each section, when represented in the frequency domain, including a signal of amplitude against frequency, the processor being operative to, for each one of the sections, identify a fundamental frequency, f being the frequency with the largest amplitude of the signal in the one section, the fundamental frequency f defining harmonic frequencies, each harmonic frequency being at a frequency f/2n or 2fn, n being a positive integer, and define the one section as an opportunity for encoding at least part of the watermark if the amplitude of the signal of the one section is less than a value v for all frequencies in one or more different frequency ranges, each of the different frequency ranges being centered around different ones of the harmonic frequencies. Related apparatus and methods are also described.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: June 24, 2014
    Assignee: Cisco Technology Inc.
    Inventor: Zeev Geyzel
  • Publication number: 20140169559
    Abstract: An audio processing method for an electronic device includes a first audio file, a second audio file, and a first digital watermark to perform an audio processing method. The first digital watermark has ownership information regarding the first audio file. A first discrete audio array of the first audio file and a second discrete audio array of the second audio file are generated. A cipher code is generated using the first discrete audio array and the first digital watermark, and a second digital watermark is generated using the cipher code and the second discrete audio array. The first and second digital watermarks are compared, to confirm common ownership or otherwise of the second and first audio files.
    Type: Application
    Filed: December 9, 2013
    Publication date: June 19, 2014
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: XUE-WEN FENG, SHOU-KE MA
  • Patent number: 8711688
    Abstract: Network communications face security issues including traffic flow analysis attacks. Such attacks include deduction of information about networks through analysis of transmitted traffic volume or statistics, even if the traffic is encrypted. For example, an adversary may deduce operational information from traffic volume, or its timing. Described herein are security techniques that can provide transmission security with an obfuscating “cover” signal for any contention-based multiple access system by employing signal interference cancellation techniques, but are not so limited. The cover signal is transmitted on the same frequency band used by terminals on the network. Using “known-signal” and/or self-interference cancellation techniques, the cover signal can be removed by authorized terminals that have appropriate cover signal information and timing synchronization.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: April 29, 2014
    Assignee: VIASAT, Inc.
    Inventors: Edward Smith, Donald Wilcoxson, Shay Har-Noy
  • Patent number: 8699542
    Abstract: A spread spectrum modulation unit (12) performs spread spectrum clocking processing for a basic clock signal (BC) synchronized with the carrier frequency or its harmonic frequency of image information leaked from an unwanted electromagnetic wave. A modulation pattern generation unit (13) generates and outputs, as a modulation pattern signal (MP), a PN code having sign bit data synchronized with each pulse of the obtained spread spectrum clock signal SC. In addition, the modulation pattern generation unit (13) resets the repetition period of the PN code based on a horizontal sync signal (H). A modulated clock generation unit (14) modulates the spread spectrum clock signal (SC) in accordance with the modulation pattern signal (MP). The obtained modulated clock signal (MC) is amplified, generating a leakage prevention signal (JC). A leakage prevention signal containing a sideband component of a satisfactory level can be generated, obtaining a useful leakage prevention effect.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: April 15, 2014
    Assignees: NTT Advanced Technology Corporation, Nippon Telegraph and Telephone Corporation
    Inventors: Toshinori Mori, Ryo Ishikawa, Hitoshi Nobata, Yasunao Suzuki
  • Patent number: 8649552
    Abstract: A data obfuscation method, apparatus and computer program product are disclosed in which at least selected text entities such as words or abbreviations in a document are obfuscated to prevent the disclosure of private information if the document is disclosed. A user establishes various configuration parameters for selected text entities desired to obfuscated. The document is processed and text entities matching the configuration parameters are tagged for obfuscation. The tagged entities are then substituted in the document with obfuscating text. The obfuscating text can be derived from a hash table. The hash table may be used to provide a reverse obfuscation method by which original data can be restored to an obfuscated document.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: February 11, 2014
    Assignee: International Business Machines Corporation
    Inventors: Sreeram Viswanath Balakrishnan, Rema Ananthanarayanan, Souptik Datta
  • Patent number: 8645705
    Abstract: According to one embodiment, an information processing device includes a receiving section configured to receive a trigger signal from a device connected thereto, a verifying section configured to verify the trigger signal when the receiving section receives the trigger signal, and an activating section configured to activate the system when the verification of the trigger signal is successfully made by the verifying section.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: February 4, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Ken Hatano
  • Patent number: 8638944
    Abstract: A countermeasure for differential power analysis attacks on computing devices. The countermeasure includes the definition of a set of split mask values. The split mask values are applied to a key value used in conjunction with a masked table defined with reference to a table mask value. The set of n split mask values are defined by randomly generating n?1 split mask values and defining an nth split mask value by exclusive or'ing the table mask value with the n?1 randomly generated split mask values.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: January 28, 2014
    Assignee: BlackBerry Limited
    Inventor: Catherine Helen Gebotys
  • Patent number: 8619984
    Abstract: User rating data may be received at a correlation engine through a network. The user rating data may include ratings generated by a plurality of users for a plurality of items. Correlation data may be generated from the received user rating data by the correlation engine. The correlation data may identify correlations between the items based on the user generated ratings. Noise may be generated by the correlation engine, and the generated noise may be added to the generated correlation data by the correlation engine to provide differential privacy protection to the user rating data.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: December 31, 2013
    Assignee: Microsoft Corporation
    Inventors: Frank D. McSherry, Ilya Mironov