Patents Issued

Wi-LAN Issued Patents/Published Applications  - U.S. & Can

 

Patent Number  
Title
CDMA
RE37802 Multicode direct sequence spread spectrum
6,320,897 Multicode spread spectrum communications system
6,192,068 Multicode spread spectrum communications system
Wi-Fi
5,282,222
2,064,975 (Can)
Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum
RE37802 Multicode direct sequence spread spectrum
7,317,704 Method of assigning radio channels in a wireless network
6,963,617 OFDM Receiver with adaptive equalizer
2001053515 Wireless local area network
WiMAX
7,197,022 Framing for an adaptive modulation communication system
7,177,598 Method and system for reducing channel interference in a frame-synchronized wireless communication system
7,023,798 Adaptive call admission control for use in a wireless communication system
7,006,530 Method and system for adaptively obtaining bandwidth allocation requests
6,963,617 OFDM Receiver with adaptive equalizer
6,956,834 Method and apparatus for allocating bandwidth in a wireless communication system
6,944,188 Synchronizing clocks across a communication link
6,925,068 Method and apparatus for allocating bandwidth in a wireless communication system
6,804,211 Frame structure for an adaptive modulation wireless communication system
6,728,514 Scalable wireless network topology systems and methods
6,693,887 Method for allocating fractional bandwidth in a fixed-frame communication system
6,683,866 Method and apparatus for data transportation and synchronization between MAC and physical layers in a wireless communication system
6,577,863 Failure redundancy between modem interface cards and outdoor units in a wireless communication system
6,549,759 Asymmetric adaptive modulation in a wireless communication system
7,317,704 Method of assigning radio channels in a wireless network
6,459,687 Method and apparatus for implementing a MAC coprocessor in a communication system
2005058098 Frame structure for an adaptive modulation wireless communication system
2005089064 Method and apparatus for bandwidth request/grant protocols in a wireless communication system
2006002336 Method and apparatus for allocating bandwidth in a wireless communication system
2006126549 Adaptive call admission control for use in a wireless communication system
2006146863 Method and system for adapatively obtaining bandwidth allocation requests
2007002987 Synchronizing clocks across a communication link
20070133481 Framing for an adaptive modulation communication system
20070165562 Adaptive call admisssion control for use in a wireless communication system
Mesh
7,082,111 Method for dynamically allocating time slots of a common TDMA broadcast channel to a network of transceiver nodes
6,728,514 Scalable wireless network topology systems and methods
6,714,551 Method and apparatus for maintaining a predefined transmission quality in a wireless network for a metropolitan area
DSL/ATM
7,227,928 Arrangement for line-testing
7,046,623 Port swapping for inverse multiplexed digital subscriber lines
7,020,101 Method of implementing a repeater, and a transceiver unit
6,999,546 System and method for timing references for line interfaces
6,963,559 Arrangement of local area network
6,963,533 Method and system for establishing link bit rate for inverse multiplexed data streams
6,937,719 Multiplexing and demultiplexing of narrowband and broadband services in a transmission connection
6,928,056 System and method for distribution of a data stream from high-to-low-to-high bandwidth links
6,867,600 Electronic circuit and method for testing a line
6,763,019 Method and system for authenticated fast channel change of media provided over a DSL connection
6,748,076 Method for separating narrowband and broadband services on a transmission link and a splitter element
6,584,148 System and method for testing digital subscriber lines
6,480,494 Switching system data interface
6,477,207 Method and apparatus for implementing a transmission connection
6,466,033 Self powered DSL port continuity checker
6,240,091 Implementation of access service
6,128,300 Line card with modem interace
6,081,530 Transmission of ATM cells
5,999,621 Line card shelf
5,956,323 Power conservation for POTS and modulated data transmission
5,726,609 Pulse amplitude modulator using direct digital synthesizer
5,706,285 Network interfacing method and a network interface for a digital transmission network
5,526,154 Method of establishing a subscriber connection and a subscriber network
2004189157 Apparatus for retrofitting an enclosure with a cabinet
2003091034 DSL access system negotiating a voice codec type to be used between two systems
2002196774 POTS extender for voice fallback in a subscriber line
2002041597 Changing of channel capabilities
V-Chip
5,828,402 Method and apparatus for selectively blocking audio and video signals
2,179,474
(Can)
Method and apparatus for selectively blocking audio and video signals
DOCSIS
5,761,602 Hybrid multichannel data transmission system utilizing a broadcast medium
RE37,802 Multicode direct sequence spread spectrum
Location Tracking
6,249,486 Linear time display
6,219,307 Linear time display
6,867,693 Spatial position determination system
7,215,247 Spatial position determination system
Other
5,404,321 Comuter system and method for modifying and enhancing the built-in programs of a computer
5,570,305 Method and apparatus for the compression, processing and spectral resolution of electromagnetic and acoustic signals
6,731,710 Method for rapid carrier frequency estimation in a communication system

*Last updated January 9, 2008
Wi-LAN also has issued and pending patents in many countries around the world.