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Class Information
Number: 398/127
Name: Optical communications > Optical communication over freee space > In an office environment
Description: Subject matter wherein the optical beam is communicated in free space between communication devices located within a enclosed area (e.g., in-building communication).


Patents under this class:
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Patent Number Title Of Patent Date Issued
7474855 Information support system Jan. 6, 2009
7447442 Light emitting device and communication system Nov. 4, 2008
7415212 Data communication system, data transmitter and data receiver Aug. 19, 2008
7389051 Illuminator including optical transmission mechanism Jun. 17, 2008
7389052 Calibration method for station orientation Jun. 17, 2008
7386238 Method and system for infrared data communications Jun. 10, 2008
7352972 Method and apparatus for the zonal transmission of data using building lighting fixtures Apr. 1, 2008
7330661 Method and apparatus for optical communication between devices Feb. 12, 2008
7330662 System and method for remote optical digital networking of computing devices Feb. 12, 2008
7263292 Methods and apparatus for controlling multiple infrared devices Aug. 28, 2007
7215888 System and method of implementing variable loop gain in an optical wireless link based on distance May. 8, 2007
7215887 Method and apparatus for infrared data communication May. 8, 2007
7200334 System for transmitting digital signals in a space vehicle Apr. 3, 2007
7194209 Interference resistant infrared extension system Mar. 20, 2007
7155129 Steerable free space optical interconnect apparatus Dec. 26, 2006
7099589 Space-division multiplex full-duplex local area network Aug. 29, 2006
7006768 Method and apparatus for the zonal transmission of data using building lighting fixtures Feb. 28, 2006
6954591 Non-visible communication systems Oct. 11, 2005
6944402 Extended range infrared communication (ERIC) for an infrared associated (IrDA) compliant portable device Sep. 13, 2005
6920277 Optical bypass method and architecture Jul. 19, 2005
6850709 Apparatus and method for improved connectivity in wireless optical communication systems Feb. 1, 2005
6728774 Transaction support for IRDA-compatible systems Apr. 27, 2004
6690887 Wireless non-connection communication apparatus and control method therefor Feb. 10, 2004
6525856 Image display apparatus Feb. 25, 2003
6501576 Wireless data transfer using a remote media interface Dec. 31, 2002
6486994 Multi-directional infrared port and methods of using same Nov. 26, 2002
6327141 Portable computer for infrared data communication Dec. 4, 2001
6310705 Duplex outdoor base station transceiver subsystem utilizing a hybrid system of a high power amplifier and an optic antenna Oct. 30, 2001
6292283 Audio/video device including an infrared transceiver for transmitting and receiving configuration data, and method for configuring same Sep. 18, 2001
6219164 Device and method of communication by infrared between a user and a remotely controllable apparatus Apr. 17, 2001
6154300 Wireless data communication apparatus using the diffused infrared-ray antenna Nov. 28, 2000
6141357 Method and apparatus for controlling mobile receivers Oct. 31, 2000
6124958 Manufacturing method and device for a wireless local area network optics fixture array Sep. 26, 2000
6104513 High bandwidth communication system for large buildings Aug. 15, 2000
6064502 Omni-directional infrared communication system May. 16, 2000
6057949 Bi-directional infrared communications system May. 2, 2000
6008923 Multiple beam communication network with beam selectivity Dec. 28, 1999
5986787 Near-infrared communication apparatus Nov. 16, 1999
5982520 Personal storage device for application and data transfer Nov. 9, 1999
5903373 Method and apparatus for locating a transmitter of a diffuse infrared signal within an enclosed area May. 11, 1999
5896215 Multi-channel system with multiple information sources Apr. 20, 1999
5880868 Infrared backbone communication network having a radio frequency backup channel Mar. 9, 1999
5880867 Infrared backbone communication network having a radio frequency backup channel Mar. 9, 1999
5867292 Method and apparatus for cordless infrared communication Feb. 2, 1999
5850189 Apparatus and method for infrared communication Dec. 15, 1998
5838472 Method and apparatus for locating a transmitter of a diffuse infrared signal within an enclosed area Nov. 17, 1998
5818618 High-speed serial simplex broadcast data distribution using optics Oct. 6, 1998
5818328 Method and system for providing improved wireless audio transmission Oct. 6, 1998
5786923 Point-to-multipoint wide area telecommunications network via atmospheric laser transmission through a remote optical router Jul. 28, 1998
5726786 Free-space star-coupled optical data bus Mar. 10, 1998

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