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Featured researches published by Timothy Roy Block.


electronic components and technology conference | 1993

CD laser optical data links for workstations and midrange computers

Ronald Lee Soderstrom; S.J. Baumgartner; B.L. Beukema; Timothy Roy Block; Dennis L. Karst

The Optical Link Card (OLC) is a high speed fiber optic data link developed for low cost computer interconnect applications. Several versions of this OLC family are now in volume production. They incorporate a short-wavelength, CD-type laser source, high-density surface mount (SMT) packaging, and a novel technique to comply with worldwide laser safety regulations. The current cards, operating at 220 Mb/s and 266 Mb/s over 2 km of multimode optical fiber, provide compatibility with the emerging ANSI standard called Fiber Channel. Future extensions, especially to higher data rates, are being developed to meet the computer users growing demand for higher bandwidth networking solutions.<<ETX>>


High-Speed Fiber Networks and Channels | 1992

Optical data link using a CD laser

Ronald Lee Soderstrom; Timothy Roy Block; Dennis L. Karst; Tong Lu

A 266 Mb/s optical link card based on a 780 nm compact disc (CD) laser has been designed by IBM Rochester to provide a fast data link for interconnecting computer systems. This design not only met the performance and cost objectives of the data communications environment, it also overcame key challenges in the areas of laser safety, laser reliability, and modal noise. The 266 Mb/s data rate was selected to conform to the new American National Standard Institute (ANSI) Fiber Channel Standard (FCS).


Fiber Optic Datacom and Computer Networks | 1988

CD Laser As A Fiber Optic Source For Computer Data Links

Ronald Lee Soderstrom; Timothy Roy Block; Dennis L. Karst; Tong Lu

Computer data links are evolving from copper cable systems to fiber optics simply because the optical fiber itself offers the advantages of higher data rates and longer distances. The Compact Disc (CD) laser is suitable as the light source because it satisfies the computer system requirements for low cost, high data rate, miniaturized package, and high reliability.


Archive | 1990

Optical fiber link card

Timothy Roy Block; Marcia Berg Ebler; Ladd William Freitag; Gerald Michael Heiling; Spencer Clinton Holter; Dennis L. Karst; David W. Siljenberg; Ronald Lee Soderstrom; John Thomas Trnka


Archive | 2003

Cluster data port services for clustered computer system

Timothy Roy Block; Bob Richard Cernohous; John Christian Unterholzner


Archive | 1988

Serial optical interconnect bus for logic cards and the like

Timothy Roy Block; Ronald Lee Soderstrom; Gerald Michael Heiling; Charles Joseph Rocca


Archive | 1994

High-density packaging for multiple removable electronics subassemblies

Timothy Roy Block; David Peter Gaio; Ronald Lee Soderstrom


Archive | 1999

Multicast cluster servicer for communicating amongst a plurality of nodes without a dedicated local area network

Timothy Roy Block; Bob Richard Cernohous


Archive | 1990

Bidirectional free-space optical bus for electronics systems

Timothy Roy Block; Tong Lu


Archive | 2000

Dynamic modification of cluster communication parameters in clustered computer system

Timothy Roy Block; Kiswanto Thayib

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