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Physical Layer Repeater for Infrared Cableless Local Area Network

IP.com Disclosure Number: IPCOM000038740D
Original Publication Date: 1987-Feb-01
Included in the Prior Art Database: 2005-Feb-01

Publishing Venue

IBM

Related People

Authors:
Clark, GL Gfeller, FR Munoz-Bustamante, C Wheeler, AR Zalph, WN [+details]

Abstract

A technique is described whereby an infrared (IR) cableless local area network (LAN) repeater utilizes time slot signals which are physically layered. The technique utilizes a media access method for repeaters, so as to capture the ether in a predictable and orderly fashion. The concept uses a physical time slot orientation of the media, thereby eliminating the need to rewrite the basic input/output system (BIOS) or application software. The physical layer is structured in such a way so as to provide the following features, or advantages, over other repeater schemes: The repeater signals will never collide with each other. . PACKET INFORMATION IS ONLY REPEATED IF IT IS IN THE LINK PATH. . Will recognize that the packet information is not in the link path. . RETAIN PACKET INFORMATION IN ITS ORIGINAL DATA CONTENT. .