Masking Signal Selectively Addressed Patents (Class 380/209)
-
Patent number: 10558186Abstract: A pre-trained convolutional network is trained to accurately distinguish between video images of different types of drones. In addition, a neural network is also trained to distinguish between the drones based upon their audio signatures.Type: GrantFiled: October 13, 2017Date of Patent: February 11, 2020Inventor: Farrokh Mohamadi
-
Patent number: 9177117Abstract: A secure module includes a generating unit that executes generation processing of generating a scanning program that causes scan processing, which generates unique code for a program under test, to be executed at a connected device and further executes update processing of randomly updating contents of the scanning program; a storage device storing therein the unique code for the program under test; and an authenticating unit that if the scanning program is executed by the connected device and executed with respect to the program under test stored at a designated storage area in the connected device, authenticates validity of the program under test stored at the designated storage area, based on the unique code stored in the storage device and execution results of the scanning program executed at the connected device.Type: GrantFiled: April 26, 2011Date of Patent: November 3, 2015Assignees: FUJITSU LIMITED, FUJITSU SEMICONDUCTOR LIMITEDInventors: Kiyoshi Kohiyama, Masakazu Takakusu, Tatsuro Kawakami, Toshiyuki Yoshitake
-
Patent number: 8774406Abstract: 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: GrantFiled: December 21, 2011Date of Patent: July 8, 2014Assignee: Electronics and Telecommunications Research InstituteInventors: Yong-Je Choi, Doo Ho Choi, Taesung Kim, Kyunghee Oh, You Sung Kang, Ju Han Kim, Jeong Nyeo Kim, Hyun sook Cho
-
Composite masking system and method for improving invisibility of high-definition video watermarking
Patent number: 8553881Abstract: A composite masking system and method for improving the invisibility of high-definition video watermarking. The composite masking system includes a watermark generation module, a mask generation module, and watermark embedment means. The watermark generation module generates a basic watermark pattern using a private key, and generate a watermark pattern by repeatedly extending the basic watermark pattern. The mask generation module generates a Noise Visibility Function (NVF) mask using NVF masking means, an adaptive dithering mask using adaptive dithering masking means, and a contour mask using contour masking means. The watermark embedment means generates a composite mask by multiplying the NVF mask, the adaptive dithering mask and the contour mask together, multiplying the composite mask and the extended watermark pattern together, and embedding the result of the second multiplication in the luminance channel of an original image.Type: GrantFiled: July 11, 2011Date of Patent: October 8, 2013Assignee: Korea Advanced Institute of Science and Technology (KAIST)Inventors: Heung Kyu Lee, Tae Woo Oh, Kyung Su Kim, Ji Won Lee, Hee Dong Kim -
Patent number: 8223964Abstract: A system, method, and apparatus for authenticating microparticle marks or marks including other three-dimensional objects. The authentication utilizes two or more sets of information captured or acquired for the mark in response to illumination of the mark by electromagnetic energy such as in the visible frequency range. These sets of information are then used to verify that the mark includes three-dimensional objects such as microparticles. The two or more sets of information about the mark preferably vary from each other in time, space/directionality, color, frequency or any combinations thereof, and can be captured or acquired as part of one, two, or more images of the microparticle mark.Type: GrantFiled: October 6, 2010Date of Patent: July 17, 2012Assignee: SMI Holdings, Inc.Inventors: Thomas Stierman, Dan Hunt, Chris Zdon
-
Patent number: 8204929Abstract: An improved methodology and implementing computer system are provided in which sensitive information is selectively masked in order to enable such information to be relatively securely and efficiently transmitted over networks without disclosure of such sensitive information at a transmitting or receiving terminal, or at points along the data transmission network.Type: GrantFiled: October 25, 2001Date of Patent: June 19, 2012Assignee: International Business Machines CorporationInventors: Allen Leonid Roginsky, Nevenko Zunic
-
Patent number: 8094818Abstract: A method and apparatus for defeating copy protection signals in a video signal, and also for providing copy protection signals for a video signal, is disclosed. The defeat technique generally utilizes a particular pulse position shifting, modulation, etc., of AGC, normal sync and/or pseudo sync pulses to increase the separation between the pulses. Various embodiments are disclosed including selective shifting of the relative positions of either the sync/pseudo sync or AGC pulses, trimming portions of the sync/pseudo sync and/or the AGC pulses and narrowing of either the sync/pseudo sync and/or the AGC pulses, all to provide the selective position separation between the sync/pseudo sync and AGC pulses.Type: GrantFiled: February 9, 2005Date of Patent: January 10, 2012Assignee: Rovi Solutions CorporationInventor: Ronald Quan
-
Patent number: 7940930Abstract: A system for scrambling/descrambling packets of a stream of content, each packet having a must stay clear (MSC) section, the system including an input handler including a receiving module to receive the stream, a characteristic analyzer to analyze the stream in order to determine a data independent characteristic of each packet, and a scrambling /descrambling device operationally associated with the input handler, the scrambling/descrambling device including a receiving module to receive the data independent characteristic for each packet from the input handler, and an Initial Value module to determine an Initial Value for each packet as a function of the data independent characteristic of one of the packets being processed, wherein the scrambling/descrambling device is adapted to scramble and/or descramble the packets based on the Initial Value and a Control Word. Related apparatus and methods are included.Type: GrantFiled: March 22, 2006Date of Patent: May 10, 2011Assignee: NDS LimitedInventors: Chaim Shen-Orr, Eliphaz Hibshoosh, Yaacov Belenky, Yaakov (Jordan) Levy
-
Patent number: 7853121Abstract: A BD-ROM stores a video stream and a plurality of pieces of copy control information. The plurality of pieces of copy control information include “CCIforHD with CM”, “CCIforSD with CM”, “CCIforHD without CM”, and “CCIforSD without CM”. The video stream constitutes video composed of a plurality of video streams. Among the plurality of pieces of copy control information, “CCIforHD with CM” and “CCIforSD with CM” indicate whether recording is permitted of a video signal converted from the video stream and output with addition of supplemental information. On the other hand, “CCIforHD without CM” and “CCIforSD without CM” indicate whether recording is permitted of the video output without addition of the supplemental information.Type: GrantFiled: January 28, 2005Date of Patent: December 14, 2010Assignee: Panasonic CorporationInventor: Hiroshi Yahata
-
Patent number: 7831042Abstract: A system, method, and apparatus for authenticating microparticle marks or marks including other three-dimensional objects. The authentication utilizes two or more sets of information captured or acquired for the mark in response to illumination of the mark by electromagnetic energy such as in the visible frequency range. These sets of information are then used to verify that the mark includes three-dimensional objects such as microparticles. The two or more sets of information about the mark preferably vary from each other in time, space/directionality, color, frequency or any combinations thereof, and can be captured or acquired as part of one, two, or more images of the microparticle mark.Type: GrantFiled: March 13, 2007Date of Patent: November 9, 2010Assignee: SMI Holdings, Inc.Inventors: Thomas Stierman, Dan Hunt, Chris Zdon
-
Patent number: 7817902Abstract: An apparatus and a method of generating a video-reproducing clock signal from a 480p signal. The apparatus generates a video-reproducing clock signal from a 480p signal that includes a vertical synchronization signal, horizontal synchronization signals, and copy guard signals. The apparatus includes a coast signal generating unit and a clock signal generating unit. The coast signal generating unit generates a plurality of coast signals with pulse widths, each of which covers the different number of copy guard signals on the basis of the present copy guard signal in one frame signal of the 480p signal. The clock signal generating unit generates horizontal synchronization signals at the same period as that of the horizontal synchronization signals generated in a previous frame, while the corresponding coast signal is being generated.Type: GrantFiled: December 24, 2003Date of Patent: October 19, 2010Assignee: Samsung Electronics Co., Ltd.Inventor: Yoon-seop Choi
-
Patent number: 7765402Abstract: Systems and methods for a wireless communication system used for transmitting and receiving information, the information not containing identification of the information's intended recipient. A method for transmitting payload information, the method comprising providing verification information scrambling a portion of the verification information and transmitting the payload information with the scrambled verification information portion. Also provided is a method for processing transmitted payload information incorporated into an encoded information message with scrambled verification information, the method comprising receiving the encoded information message descrambling at least a portion of the scrambled verification information and comparing said descrambled verification information with predetermined verification information processing said payload information based on said comparison.Type: GrantFiled: December 16, 2005Date of Patent: July 27, 2010Assignee: Research In Motion LimitedInventors: David Clark, David Bajar, Simon Wise, Ian M. Patterson, David Yach, Allan David Lewis, Gary P. Mousseau
-
Patent number: 7646869Abstract: The present invention relates to a system for copy protection of an information carrier, said system comprising a diffractive layer for delivering a speckle pattern when illuminated by a light source, a spatial filter, which is aligned with respect to the diffractive layer, for delivering a filtered optical signal from the speckle pattern and a detector array for delivering, when illuminated by said filtered optical signal, an electrical signal. Said system further comprises means for computing a cryptographic key from the electrical signal, and means for decrypting encrypted data contained in the information carrier from the cryptographic key. It finds its application in copy protection of content carriers such as optical discs or in smart cards.Type: GrantFiled: April 16, 2004Date of Patent: January 12, 2010Assignee: Koninklijke Philips Electronics N.V.Inventors: Ralph Kurt, Robert Frans Maria Hendriks, Levinus Pieter Bakker
-
Patent number: 7646963Abstract: An information processing apparatus comprises an extracting means for extracting main information including first copy control information and auxiliary information representing attributes of the main information from input information; a first generating means for generating second copy control information based on the auxiliary information extracted by the extracting means; and an adding means for adding the second copy control information generated by the first generating means to the main information extracted by the extracting means. As a result, even an apparatus not capable of analyzing first copy control information is capable of executing copy control.Type: GrantFiled: July 25, 2003Date of Patent: January 12, 2010Assignee: Sony CorporationInventors: Motoki Kato, Yasushi Fujinami
-
Publication number: 20090003599Abstract: Systems and methods are provided for publishing selectively altered sensor data. One system includes a plurality of sensors coupled to a processor. The sensors are configured to generate data, and the processor is configured to fuse and publish a portion of the data from each of the plurality of sensors in a fused version of the data. Another system includes a sensor coupled to a processor. The sensor is configured to generate data and the processor is configured to modify the data to create a plurality of modified versions of the data. A method includes receiving data from at least one sensor, altering the data to create an altered version of the data, and publishing the altered version of the data in real time.Type: ApplicationFiled: June 29, 2007Publication date: January 1, 2009Applicant: HONEYWELL INTERNATIONAL, INC.Inventors: Brett D. Hart, Steven D. Martinez, Ronald E. Rundquist
-
Patent number: 7391866Abstract: A reception apparatus includes: a reception unit for receiving the scrambled content, the scrambled content being scrambled so that a predetermined unit of scrambled content is descrambled using a descrambling key corresponding to the predetermined unit of scrambled content, and at least one piece of storage information in which a list including all descrambling keys used for descrambling the scrambled content is embedded; storage unit for storing the received scrambled content and the storage information; list extraction unit for extracting the list from the stored storage information; descramble processing unit for extracting the predetermined unit of scrambled content from the stored scrambled content, extracting a descrambling key corresponding to the predetermined unit of scrambled content from the extracted list, and descrambling the extracted predetermined unit of scrambled content using the extracted descrambling key; and reproduction unit for reproducing the predetermined unit of descrambled contentType: GrantFiled: December 13, 2001Date of Patent: June 24, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yukiyasu Fukami, Toru Nakahara, Takashi Matsuo, Akio Higashi, Hiroki Murakami
-
Patent number: 7389420Abstract: The disclosure describes methods for using digital watermarking to authenticate digital media signals, such as images, audio and video signals. It also describes techniques for using embedded watermarks to repair altered parts of a media signal when alteration is detected. Alteration is detected using hashes, digital watermarks, and a combination of hashes and digital watermarks.Type: GrantFiled: October 18, 2001Date of Patent: June 17, 2008Assignee: Digimarc CorporationInventor: Jun Tian
-
Patent number: 7340059Abstract: A scrambler circuit for digital telephony equipment receives a sequence of input bits, generates the sequence of output bits based on the input bits and stores the sequence of output bits. The generating of the sequence of output bits includes selecting at least one of the stored output bits in accordance with contents of a mask register, and applying a logic operation to a current input bit and the selected at least one stored output bit to provide a current output bit.Type: GrantFiled: June 17, 2003Date of Patent: March 4, 2008Assignee: Intel CorporationInventors: Ronald D. Olsen, Jon C. Melnik
-
Patent number: 7233670Abstract: A system and a method are for determining the origin of a signal received by a pay television subscriber in a given region. A system includes an encryption device located at a main operator, a transmission device adapted to transmit an encrypted video signal towards at least one local operator, and a decryption device at the local operator. The decryption device includes an identification device for replacing all or part of the decrypted video signal with an identification signal characterising the decryption device.Type: GrantFiled: February 25, 2002Date of Patent: June 19, 2007Assignee: Nagravision, S.A.Inventor: Maxime Goeke
-
Patent number: 7043022Abstract: A transmitter adds packet transmission order information to transmitted packets using a forward error device (416) and a masking device (420). The masking device (420) receives ordering masks (610) from a mask store (424). The ordering masks (610) are maintained in a known order, and the ordering masks (610) and the known order are known to both the transmitter and the receiver. The receiver includes an unmasking device (504) that applies ordering masks to unmask the packets, and then an error detection device checks for errors. The ordering masks (610) are applied in the known order until errors are below an acceptable limit. When errors are below an acceptable limit, the relative packet order is determined from the known order of the ordering masks.Type: GrantFiled: November 22, 1999Date of Patent: May 9, 2006Assignee: Motorola, Inc.Inventors: Scott D. Blanchard, Dean P. Vanden Heuvel
-
Patent number: 6928162Abstract: A method and system for providing a hash and a complement of the hash for an item in a computer system are disclosed. The method and system include providing a plurality of components from the item. The plurality of components include a first component and a last component. Each of the plurality of components includes a particular number of bits. The method and system also include cascading the plurality of components through at least one XOR to provide a plurality of resultants. The plurality of resultants includes a first resultant and a final resultant. The final resultant includes only the last component. The first resultant includes an XOR of the first component and remaining cascaded components of the plurality of components. The method and system also include applying an invertible hash function and an invertible hash function complement to at least the first resultant to provide the hash. The complement of the hash includes the plurality of resultants except the first resultant.Type: GrantFiled: April 7, 2000Date of Patent: August 9, 2005Assignee: International Business Machines CorporationInventors: Marco C. Heddes, Clark Debs Jeffries, Piyush Chunilal Patel
-
Patent number: 6925342Abstract: A system and method for verifying digital recordings that have a plurality of tracks. The system includes an encoder that: divides the digital recording into a plurality of sections and associates a random number with each section; calculates an identifier as a function of the associated random numbers; and watermarks sections within a block of sections with the associated random number and a portion of the identifier. A verification system is provided that extracts the random numbers and identifier portions; calculates a first identifier as a function of the extracted random numbers; calculates a second identifier based on the identifier portions; and compares the first identifier and the second identifier.Type: GrantFiled: December 5, 2000Date of Patent: August 2, 2005Assignee: Koninklijke Philips Electronics N.V.Inventor: Laszlo Hars
-
Patent number: 6839433Abstract: Illegal cable decoders, i.e., black boxes, are defeated by adding, inserting and/or superimposing an added signal onto an already scrambled video signal, which added signal is capable of disrupting the operation of the illegal cable decoder. As a result of the added signal, the illegal cable decoder outputs an unstable or unviewable picture or signal and concealment is maintained. In another embodiment of an added signal, a modulated signal with a range from about blanking level to about peak white level is added, inserted and/or superimposed on the unstable scrambled video signal in the vertical blanking interval and/or its vicinity. As a result, the illegal cable decoder is caused to generate some horizontal instabilities at its output.Type: GrantFiled: July 20, 1999Date of Patent: January 4, 2005Assignee: Macrovision CorporationInventor: Ronald Quan
-
Patent number: 6792111Abstract: A cryptation system for information transmitted through packet switching networks masks the digital information data by combining it at the transmitting station with digital data of a certain cryptation code before transmitting the so-encrypted data through the network. The system also performs an inverse decrypting processing at the receiving station using the same code. The system generates at a transmitting station and at a receiving station, starting from a given pair of password codes or user key, a certain discrete chaotic model or map of the pair of codes or key, producing dynamically updated pairs of values of codes or keys every certain number of processing steps of the chaotic map. The data to be transmitted is masked by way of a logic combination with the current dynamically updated keys at the transmitting station.Type: GrantFiled: October 12, 1999Date of Patent: September 14, 2004Assignee: STMicroelectronics S.r.l.Inventors: Francesco Italia, Luigi Fortuna, Francesco Beritelli, Eusebio Di Cola
-
Patent number: 6754347Abstract: A switching portion of an IRD supplies a non-descrambled TS (transport stream) received from a front end portion or a descrambled TS received from a descrambler to a DVCR connected to an IEEE 1394 interface. In addition, data received from the DVCR is supplied to the descrambler.Type: GrantFiled: August 13, 1999Date of Patent: June 22, 2004Assignee: Sony CorporationInventor: Ichiro Hamada
-
Patent number: 6633982Abstract: A method and system for managing electronic distribution of digital movies to commercial exhibitors at warp speed is made ultra secure by utilizing synchronized and concurrent digitally bifurcated data transmissions via both satellite up-links/downlinks and compressed digital data sent and retrieved from secure restrictive sites on the world wide web. All transmitted data received is interlocking and co-dependent upon each other for functional deciphered translation thereby considerably reducing the odds of piracy over present methods.Type: GrantFiled: March 20, 1999Date of Patent: October 14, 2003Inventor: Wayne Samuel Kurzeja
-
Patent number: 6215875Abstract: A cipher processing apparatus which readily updates a cipher processing circuit for encrypting information communicated through a communication function. A service station side and a user side are connected. A receiving function receives a command for requesting a change of a cipher processing program and the cipher processing program which are transmitted from the service station side to the user side through the communication function. Circuit updating function updates a cipher processing circuit provided on the user side with the cipher processing program. With these functions, the cipher processing circuit provided on the user side can be readily rewritten in accordance with the cipher processing program transmitted from the service station side.Type: GrantFiled: January 12, 1998Date of Patent: April 10, 2001Assignee: Sony CorporationInventor: Shigetoshi Nohda
-
Patent number: 6188870Abstract: The passive interdiction system for CATV scrambling provides a plurality of passive, preselected negative signal traps for securing specific CATV channels. Each trap cyclically attenuates the desired CATV channel thereby confusing the AGC (automatic gain control) circuit of the television monitor-receiver or video cassette recorder (VCR) by rapid cancellation and restoration of the picture carrier and main signal components. The passive interdiction system is comprised of a plurality of SAW (surface acoustic wave) resonators tuned to specific frequencies corresponding to the carrier frequencies of the channels to be secured and are alternately keyed on and off by a 10 to 20 Hz square wave. Authorization and control of the secured channels originates at the cable provider's headend and is transmitted contemporaneously with the CATV programming. The authorization data is specifically addressed and decoded at unique interdiction units disposed within the CATV system.Type: GrantFiled: October 7, 1996Date of Patent: February 13, 2001Assignee: General Instrument CorporationInventor: Joseph Glaab