Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 8155317 | Encryption processing circuit and encryption processing method An encryption processing circuit includes: a decoder configured to convert a binary input data used for predetermined encryption computing into a first plurality of bit data of a constant hamming weight independently of a hamming weight of the input data; a wiring n... | 04/10/2012 |
| 7961881 | Apparatus and methods for including codes in audio signals Apparatus and methods for including a code having at least one code frequency component in an audio signal are provided. The abilities of various frequency components in the audio signal to mask the code frequency component to human hearing are evaluated and based o... | 06/14/2011 |
| 7889866 | Information leakage prevention apparatus and information leakage prevention method A clock signal extractor (11) is connected to an interface of an information equipment (2) for processing an information signal, to extract a clock signal component from the information signal. A clock signal generator (12) generates a pseudo cl... | 02/15/2011 |
| 7885408 | Protection of several identical calculations A method for masking several identical functional processes manipulating digital data, including dividing the functional processes into steps at the end of each of which the process can be interrupted with the storage of at least one intermediary result, and success... | 02/08/2011 |
| 7813506 | System and methods for permitting open access to data objects and for securing data within the data objects 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 pre... | 10/12/2010 |
| 7738659 | Multiple transform utilization and application for secure digital watermarking Multiple transform utilization and applications for secure digital watermarking. In one embodiment of the present invention, digital blocks in digital information to be protected are transformed into the frequency domain using a fast Fourier transform. A plurality o... | 06/15/2010 |
| 7720225 | Table splitting for cryptographic processes For a defined cryptographic process including an original substitution table, split masked substitution tables are provided to resist cryptographic attacks. The split masked substitution tables are defined with reference to a set of random value data words and a mas... | 05/18/2010 |
| 7715561 | System for protecting personal information of a customer when receiving on-line services from a service provider Disclosed is an information protection system of an on-line service provider connected with customers' telephones through a telephone network for protecting important personal information of the customers from being leaked by tapping the customers' telephone lines, ... | 05/11/2010 |
| 7715560 | Systems and methods for hiding a data group A system is provided for hiding a data group in a wireless communication device, in which a predetermined data group is hidden according to a hiding request. The system for hiding a data group comprises an encryption module for receiving the hiding request and the p... | 05/11/2010 |
| 7532725 | Systems and methods for permitting open access to data objects and for securing data within the data objects 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 pre... | 05/12/2009 |
| 7526090 | Secured radio communications method A data processing system, method, and product are disclosed for securing radio transmissions utilizing a conventional radio. A conventional radio and a computer system are provided. The computer system is separate and apart from the conventional radio. The conventio... | 04/28/2009 |
| 7508944 | Using classification techniques in digital watermarking A classification scheme assigns samples of the watermarked media to classes based on a classification criteria indicating a likely presence of a watermarked signal. Once classified, the scheme models a statistical distribution of the samples in each class. It then a... | 03/24/2009 |
| 7372965 | Electric circuit management method and device The invention proposes a method of managing an electronic circuit of the type comprising a memory (EEPROM) for the storage of confidential information, the method comprising masking variations of the electrical current (I) consumed by the electronic circuit, during ... | 05/13/2008 |
| 7370363 | Electronic information embedding method and extracting method, electronic information burying apparatus and extracting apparatus, and programs therefor On embedding electronic watermark data in point group data obtained from a three-dimensional measurement, an x-y plane region defining the point group data is divided into a plurality of small regions so that a point group is produced with respect to each of small r... | 05/06/2008 |
| 7363494 | Method and apparatus for performing enhanced time-based authentication A time-based method for generating an authentication code associated with an entity uses an authentication code generated from a secret, a dynamic, time-varying variable, and the number of previous authentication code generations within the particular time interval.... | 04/22/2008 |
| 7359528 | Monitoring of video or audio based on in-band and out-of-band data The presently claimed invention relates generally to monitoring and/or filtering video or audio data. In one implementation a method is provided including: obtaining data representing video or audio; analyzing the data representing video or audio for an in-band sign... | 04/15/2008 |
| 7359513 | Quantum cryptography protocol An apparatus and method for implementing a quantum cryptography system encoding bit values on approximations of elementary quantum systems with provable and absolute security against photon number splitting attacks. The emitter encodes the bit values onto pairs of n... | 04/15/2008 |
| 7356626 | Method and device for signal protection Method for decreasing the existence of externally detectable revealing signals, so-called {umlaut over (R)}ÖS, from keyboards (1), e.g. for computers, where the keyboard is fed with signals, so-called matrix signals, which are detected for detection of activ... | 04/08/2008 |
| 7356142 | Secure compact disk and player A method for recording data on an optical medium is disclosed. In one embodiment, the method includes receiving a first plurality of frames of data at a Cross Interleave Reed-Solomon Code (CIRC) encoder, encoding the first plurality of frames of data by the CIRC enc... | 04/08/2008 |
| 7350086 | Creation of image file The technique of the present invention ensures generation of an image file, in which image data and additional data are included, with the confidentiality of specific data kept. An image output system outputs the image data, which is generated in a digital st... | 03/25/2008 |
| 7346165 | Apparatus and method for generating scrambling code in mobile communication system An apparatus generates a scrambling code in a mobile communication system by performing one or more mask operations on an input state value. The apparatus includes a register memory which receives the state value from an upper layer of the system, a generator which ... | 03/18/2008 |
| 7336220 | Method and apparatus for equalizing broadband chirped signal In order to generate a signal for canceling a chirped signal, a transmitter generates a cancellation signal along with the transmitted signal, using a single term variable complex gain multiplier adapted to cancel the chirped signal only at its instantaneous frequen... | 02/26/2008 |
| 7333965 | Classifying text in a code editor using multiple classifiers Multiple independent classifiers of a code editor are used to classify a range of text. Each classifier is an independent classifier and can independently classify any given range of text. Classifiers can be added and merged during run time of the code editor. Addin... | 02/19/2008 |
| 7330838 | System and method for securing transactional data transmitted over a wireless network in a retail store environment A system and method secure transactional data communicated over a wireless network in a store by obfuscating bona fide transactional messages in the message traffic flow. The system includes a load balancer coupled to a store host computer and a plurality of transac... | 02/12/2008 |
| 7328345 | Method and system for end to end securing of content for video on demand A system and method for providing end-to-end security of content over a heterogeneous distribution chain is provided. A content owner provides content to an aggregator that receives the content and processes the content. The processing may involve decrypting the con... | 02/05/2008 |
| 7328198 | Video demultiplexing based on meaningful modes extraction Methods and systems for grouping video frames. The video frames may be from a multiplexed stream of video frames from a plurality of video sources. In some embodiments video frames are grouped by determining if the video frames share meaningful modes for values repr... | 02/05/2008 |
| 7325131 | Robust watermark for DSD signals A robust watermark embedded into a Direct Stream Digital (DSD) audio signal including a flat frequency response in a specific frequency range which does not extend below 20 kHz or above 100 kHz. The watermark is therefore hidden in the noise spectrum of the DSD sign... | 01/29/2008 |
| 7324646 | Method and apparatus for film anti-piracy A method and apparatus is disclosed for introducing alterations or distortions in projected images. The distortions on the projected image are imperceptible to a human viewer. The distortions are recorded on recording devices and observable upon viewing the recorded... | 01/29/2008 |
| 7322047 | Data security system and method associated with data mining The data security method, system and associated data mining enables multiple users, each having a respective security clearance level to access security sensitive words, data objects, characters or icons. The method extracts security sensitive words, data objects, c... | 01/22/2008 |
| 7321666 | Multilayered digital watermarking system A digital watermarking apparatus that embeds two watermarks in host data is provided. The first watermarking block generates a plurality of watermarking location candidates of the first watermark, and embeds the first watermark into the respective location candidate... | 01/22/2008 |
| 7319186 | Scrambling method of music sequence data for incompatible sound generator A data format of music sequence data represents a music piece and enables a compatible sound generating apparatus to reproduce the music piece at a first quality while allowing a non-compatible sound generating apparatus to reproduce the music piece at a second qual... | 01/15/2008 |
| 7305089 | Picture taking apparatus and method of controlling same The camera includes a sensor for sensing the photographer's iris image and registering the image in advance. The iris image is recorded in the image of a subject by a digital MCU at a timing different from that at which the image of the subject is captured. The reco... | 12/04/2007 |
| 7302162 | Modulation of a video signal with an impairment signal to increase the video signal masked threshold An impairment signal is introduced into an original visual signal, either electronically or optically, that is not noticeable in a display of the original visual signal but is noticeable in a copy made of the display by a camcorder or other camera, thereby discourag... | 11/27/2007 |
| 7293175 | Automatic information sanitizer An automatic data sanitizer module sanitizes formatted data from an external source system according to stored sanitization rules for release to an external destination system so that the destination system receives only that data for which it is authorized. The mod... | 11/06/2007 |
| 7290289 | Processor with several calculating units A processor comprises a first calculating unit, a second calculating unit and a control means for controlling the two calculating units, such that they selectively operate in a high security mode of operation processing complementary data or in a parallel mode of op... | 10/30/2007 |
| 7290141 | Authentication of remotely originating network messages A method and system for authenticating messages received from users across multiple remote devices are provided. A residential gateway authenticates a user using a modified digest authentication scheme by storing a sequence number in the nonce field. Access encrypti... | 10/30/2007 |
| 7287167 | Record medium, recording apparatus for record medium, recording method for record medium, reproducing apparatus for record medium, reproducing medium for record medium, and data output controlling method A recording method for a record medium is disclosed, that comprises the steps of adding right information containing at least copyright management information to at least one of a plurality of pieces of input data, and performing a signal process for the plurality o... | 10/23/2007 |
| 7284129 | Data processing apparatus and method A watermarking system includes an encoding data processor operable to generate at least one marked version of an original item of material by introducing one of a predetermined set of code words into a copy of the original material item. The apparatus has a code wor... | 10/16/2007 |
| 7280661 | Data output method and apparatus, data playback method and apparatus, data recording method and apparatus, and data recording and playback method and apparatus A method for outputting data read from a recording medium including decoding data read from a recording medium, embedding electronic watermark information in the decoded data when the decoded data is output as recording data, and outputting the resulting data. ... | 10/09/2007 |
| 7277871 | Digital watermark system A digital watermark embedding apparatus generates an echo signal, which is delayed a time period corresponding to digital watermark information to be embedded with respect to each tone signal that forms an original audio signal, and inserts the generated echo signal... | 10/02/2007 |
