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Dive into the research topics where Harold A. Roberts is active.

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Featured researches published by Harold A. Roberts.


Fiber Optics in the Subscriber Loop | 1991

Low-back-reflection, low-loss fiber switch

Harold A. Roberts; David J. Emmons; Michael S. Beard; Liang-Ju Lu

A rotary single-mode optical fiber switch has been developed which uses a novel anti-backreflection geometry. As a result the return loss is greater than 50 dB while insertion loss is maintained below 1 dB. This paper will indicate applications in the subscriber ioop then detail the rotary switching concept anti-backreflection enhancement and electromagnetic actuator. The switch will be shown to be rugged under the environmental conditions that may be expected in the outside plant.


Archive | 1997

Communication system with multicarrier telephony transport

Mark J. Dapper; Michael J. Geile; Terrance J. Hill; Harold A. Roberts; Brian D. Anderson; Jeffrey Brede; Mark S. Wadman; Robert J. Kirscht; James J. Herrmann; Michael J. Fort; Steven P. Buska; Jeff Solum; Debra Lea Enfield; Darrell Berg; Thomas Smigelski; Thomas C. Tucker; Joe Hall; John M. Logajan; Somvay Boualouang; Heng Lou; Mark D. Elpers; Matt Downs; Tammy Ferris; Adam Opoczynski; David S. Russell; Calvin G. Nelson; Niranjan R. Samant; Joseph F. Chiappetta; Scott Sarnikowski


Archive | 1997

Hybrid fiber/coax video and telephony communication

Harold A. Roberts; David S. Russell; Calvin G. Nelson; Jeffrey Brede; Joseph F. Chiappetta; Niranjan R. Samant


Archive | 1999

Fast fourier transform apparatus and method

Mark J. Dapper; Michael J. Geile; Terrance J. Hill; Harold A. Roberts; Brian D. Anderson; Jeffrey Brede; Mark S. Wadman; Robert J. Kirscht; James J. Herrmann; Michael J. Fort; Steven P. Buska; Jeff Solum; Debra Lea Enfield; Darrell Berg; Thomas Smigelski; Thomas C. Tucker; Joe Hall; John M. Logajan; Somvay Boualouang; Heng Lou; Mark D. Elpers; Matt Downs; Tammy Ferris; Adam Opoczynski; David S. Russell; Calvin G. Nelson; Niranjan R. Samant; Joseph F. Chiappetta; Scott Sarnikowski


Archive | 1996

Channel selection for a hybrid fiber coax network

Terrance J. Hill; Harold A. Roberts; Brian D. Anderson; Jeffrey Brede; Mark S. Wadman; Robert J. Kirscht; James J. Herrmann; Michael J. Fort; Steven P. Buska; Jeff Solum; Debra Lea Enfield; Darrell Berg; Thomas Smigelski; Thomas C. Tucker; Joe Hall; John M. Logajan; Somvay Boualouang; Heng Lou; Mark D. Elpers; Matt Downs; Tammy Ferris; Adam Opoczynski; David S. Russell; Calvin G. Nelson; Niranjan R. Samant; Joseph F. Chiappetta; Scott Sarnikowski


Archive | 2007

Method for tone hopping in a multipoint-to-point orthogonal frequency division multiplexing communication system

Michael J. Geile; Jeffrey Brede; Harold A. Roberts


Archive | 2007

Systems and method for orthogonal frequency divisional multiplexing

Mark J. Dapper; Michael J. Geile; Terrance J. Hill; Harold A. Roberts; Brian D. Anderson; Jeffrey Brede; Mark S. Wadman; Robert J. Kirscht; James J. Herrmann; Michael J. Fort; Steven P. Buska; Jeff Solum; Debra Lea Enfield; Darrell Berg; Thomas Smigelski; Thomas C. Tucker; Joe Hall; John M. Logajan; Somvay Boualouang; Heng Lou; Mark D. Elpers; Matt Downs; Tammy Ferris; Adam Opoczynski; David S. Russell; Calvin G. Nelson; Niranjan R. Samant; Joseph F. Chiappetta; Scott Sarnikowski


Archive | 1992

Optical fiber crimp

Robert J. Ziebol; Harold A. Roberts


Archive | 2002

Controlling service units in a communication system

Mark J. Dapper; Michael J. Geile; Terrance J. Hill; Harold A. Roberts; Brian D. Anderson; Jeffrey Brede; Mark S. Wadman; Robert J. Kirscht; James J. Herrmann; Michael J. Fort; Steven P. Buska; Jeff Solum; Debra Lea Enfield; Darrell Berg; Thomas Smigelski; Thomas C. Tucker; Joe Hall; John M. Logajan; Somvay Boualouang; Heng Lou; Mark D. Elpers; Matt Downs; Tammy Ferris; Adam Opoczynski; David S. Russell; Calvin G. Nelson; Niranjan R. Samant; Joseph F. Chiappetta; Scott Sarnikowski


Archive | 1997

Communication system with multicarrier transport distribution network between a head end terminal and remote units

Mark J. Dapper; Michael J. Geile; Harold A. Roberts; Jeffrey Brede; Mark S. Wadman; Robert J. Kirscht; James J. Herrmann; Michael J. Fort

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