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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:
| Patent Number |
Title Of Patent |
Date Issued |
| 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 |
| 6389137 |
VIDEO SIGNAL TRANSMITTING METHOD, VIDEO SIGNAL OUTPUT DEVICE, VIDEO SIGNAL RECEIVER, VIDEO ANTI-DUPLICATION CONTROL SYSTEM, ADDITIONAL INFORMATION SUPERIMPOSING AND EXTRACTING SYSTEM AND VIDEO |
May. 14, 2002 |
| 6320965 |
Secure watermark method and apparatus for digital signals |
Nov. 20, 2001 |
| RE36791 |
Location system adapted for use in multipath environments |
Jul. 25, 2000 |
| 6081601 |
Method of implementing connection security in a wireless network |
Jun. 27, 2000 |
| 6061389 |
Frequency-hopping communication system and communication station |
May. 9, 2000 |
| 6014373 |
Spread spectrum CDMA subtractive interference canceler system |
Jan. 11, 2000 |
| 5952956 |
Time domain radio transmission system |
Sep. 14, 1999 |
| 5930366 |
Synchronization to a base station and code acquisition within a spread spectrum communication system |
Jul. 27, 1999 |
| 5930291 |
Method and apparatus for selecting random values from a non-sequential set |
Jul. 27, 1999 |
| 5926502 |
Phased array spread spectrum system and method |
Jul. 20, 1999 |
| 5923760 |
Chaotic communication apparatus and method for use with a wired or wireless transmission link |
Jul. 13, 1999 |
| 5848155 |
Spread spectrum watermark for embedded signalling |
Dec. 8, 1998 |
| 5841806 |
Method and apparatus for the transmission of energy-scaled variable rate data |
Nov. 24, 1998 |
| 5825887 |
Transmitting and receiving apparatus for full code correlation operation under encryption for satellite positioning system |
Oct. 20, 1998 |
| 5793798 |
Virtual beam system |
Aug. 11, 1998 |
| 5781582 |
Frequency agile transceiver with multiple frequency synthesizers per transceiver |
Jul. 14, 1998 |
| 5771288 |
Multiple access coding for radio communications |
Jun. 23, 1998 |
| 5754650 |
Simultaneous multichannel television access control system and method |
May. 19, 1998 |
| 5742678 |
Multiple access coding for radio communications |
Apr. 21, 1998 |
| 5719852 |
Spread spectrum CDMA subtractive interference canceler system |
Feb. 17, 1998 |
| 5715236 |
System and method for generating signal waveforms in a CDMA cellular telephone system |
Feb. 3, 1998 |
| 5712626 |
Remotely-operated self-contained electronic lock security system assembly |
Jan. 27, 1998 |
| 5712868 |
Dual mode communication network |
Jan. 27, 1998 |
| 5712867 |
Two-way paging apparatus having highly accurate frequency hopping synchronization |
Jan. 27, 1998 |
| RE35650 |
Spread spectrum communications system |
Nov. 4, 1997 |
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