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Browse by Category: Main > Information Technology
Class Information
Number: 380/34
Name: Cryptography > Communication system using cryptography > Wireless communication > Using plural paths or channels > Plural carrier frequencies
Description: Subject matter which transmits different composite parts of an information signal over carrier waves of different frequencies.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8582761 Cryptographic method with elliptical curves Nov. 12, 2013
8478526 Enabling a first mobile device to navigate to a location associated with a second mobile device Jul. 2, 2013
8472622 Wireless communication method, information access method, and virtual antenna radiation pattern forming method Jun. 25, 2013
8442220 Transmission apparatus and transmission method May. 14, 2013
8443083 Arbitration of resources at a wireless device among contending applications May. 14, 2013
8433900 Secure transport of multicast traffic Apr. 30, 2013
8312551 Low level sequence as an anti-tamper Mechanism Nov. 13, 2012
8270600 Downlink scrambling method and base station Sep. 18, 2012
8145417 Enabling a first mobile device to navigate to a location associated with a second mobile device Mar. 27, 2012
8139682 Channel estimation of orthogonal frequency division multiplexed systems Mar. 20, 2012
8130948 Addressing of groups of broadcast satellite receivers within a portion of the satellite footprint Mar. 6, 2012
8132000 Secure transport of multicast traffic Mar. 6, 2012
8117449 Method to detect man-in-the-middle (MITM) or relay attacks Feb. 14, 2012
8023654 Securing multimedia network communication Sep. 20, 2011
8005501 Determination of data authorization on a data media Aug. 23, 2011
8000475 System and method for encrypting and modulating video streams Aug. 16, 2011
7996687 Product for providing a scalable trusted platform module in a hypervisor environment Aug. 9, 2011
7936872 Client proximity detection method and system May. 3, 2011
RE42002 Apparatus and method for high speed data communication Dec. 14, 2010
7787621 Secure transmission using adaptive transformation and plural channels Aug. 31, 2010
7774602 Secure modem gateway concentrator Aug. 10, 2010
RE41479 Time domain radio transmission system Aug. 10, 2010
7760792 Spread spectrum electromagnetic signals Jul. 20, 2010
7746939 Methods and apparatus for encoding information in a signal by spectral notch modulation Jun. 29, 2010
7630492 Secure audio stream scramble system Dec. 8, 2009
7624283 Protocol for trusted platform module recovery through context checkpointing Nov. 24, 2009
7613298 System and process for adaptive and progressive scrambling of video streams Nov. 3, 2009
7602917 Method of ciphering data transmission in a radio system Oct. 13, 2009
7587591 Secure transport of multicast traffic Sep. 8, 2009
7536014 Apparatus and method for generating scrambling code in UMTS mobile communication system May. 19, 2009
7478246 Method for providing a scalable trusted platform module in a hypervisor environment Jan. 13, 2009
7415043 Code division multiple access (CDMA) method and apparatus for protecting and authenticating wirelessly transmitted digital information Aug. 19, 2008
7362867 Apparatus and method for generating scrambling code in UMTS mobile communication system Apr. 22, 2008
7356141 Baud rate modulation encoding/decoding method and device for remote controller Apr. 8, 2008
RE39759 Time domain radio transmission system Aug. 7, 2007
7239666 Communication system Jul. 3, 2007
7111168 Digital watermarking systems Sep. 19, 2006
7103085 Wireless communications system with secondary synchronization code based on values in primary synchronization code Sep. 5, 2006
7065286 Method and apparatus for testing optical fiber by using biorthogonal codes and Moore-Penrose generalized inverses Jun. 20, 2006
6980657 Communications system using chaotic synchronized circuits Dec. 27, 2005
6882301 Time domain radio transmission system Apr. 19, 2005
6792130 System and method for embedding a watermark signal that contains message data in a digital image Sep. 14, 2004
6768903 Method of controlling a channel between a radio terminal and a cellular radiocommunication infrastructure, and access network implementing such a method Jul. 27, 2004
6701363 Method, computer program product, and system for deriving web transaction performance metrics Mar. 2, 2004
6683955 Method for receiving a secured transmission of information through a plurality of frequency orthogonal subchannels Jan. 27, 2004
6674359 Method of identifying several transponders Jan. 6, 2004
6580747 Method and generator for generating orthogonal spreading code in CDMA radio system Jun. 17, 2003
6501841 Method for providing security for a transmission of information through a plurality of frequency orthogonal subchannels Dec. 31, 2002
6484257 System and method for maintaining N number of simultaneous cryptographic sessions using a distributed computing environment Nov. 19, 2002
RE37802 Multicode direct sequence spread spectrum Jul. 23, 2002

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