Resumes
Resumes
Eric Frankfort Phones & Addresses
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2649 Quaker Church Rd, Yorktown Heights, NY 10598 (914) 245-5954 (914) 245-3938
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Yorktown Hts, NY
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Brooklyn, NY
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Yorktown Hts, NY
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2649 Quaker Church Rd, Yorktown Hts, NY 10598
Work
Position:
Machine Operators, Assemblers, and Inspectors Occupations
Emails
Publications
Us Patents
Method And Apparatus For Maintaining A Pre-Determined Ratio Of A Pilot Tone Power And A Mean Optical Output Power Of An Optical Signal
View pageUS Patent:
6931214, Aug 16, 2005
Filed:
May 10, 2000
Appl. No.:
09/567576
Inventors:
John C. Carrick - Wakefield MA, US
Stuart D. Brorson - Brighton MA, US
Eric J. Frankfort - Yorktown Heights NY, US
Paul C. Talmadge - Ansonia CT, US
Roger P. Holmstrom - St. Charles IL, US
Stuart D. Brorson - Brighton MA, US
Eric J. Frankfort - Yorktown Heights NY, US
Paul C. Talmadge - Ansonia CT, US
Roger P. Holmstrom - St. Charles IL, US
Assignee:
Tellabs Operations, Inc. - Naperville IL
International Classification:
H04B010/04
US Classification:
398198, 398197
Abstract:
Methods and apparatus related to maintaining a pre-determined ratio of a pilot tone power and a total mean optical power of an optical signal are provided. One method includes the steps of detecting the AC and DC components of an optical signal having a pilot tone signal. An amplitude of the pilot tone signal is varied in accordance with a difference between a pre-determined value and a ratio of the AC and DC components. Another method includes the step of generating an optical signal in accordance with a DC bias and an AC bias corresponding to a pilot tone signal. The AC and DC components of the optical signal are detected. At least one of the DC bias and the AC bias is varied in accordance with a difference between a pre-determined value and a ratio of the AC and DC components. An apparatus includes an optical source providing an optical signal in response to a DC bias and an AC bias corresponding to a pilot tone signal. The apparatus includes detectors coupled to measure the AC and DC components of the optical signal.
Method And Apparatus For Maintaining A Pre-Determined Ratio Of A Pilot Tone Power And A Mean Optical Output Power Of An Optical Signal
View pageUS Patent:
7110682, Sep 19, 2006
Filed:
Aug 8, 2005
Appl. No.:
11/199495
Inventors:
John C. Carrick - Wakefield MA, US
Stuart D. Brorson - Marlborough MA, US
Eric J. Frankfort - Yorktown Heights NY, US
Paul C. Talmadge - Ansonia CT, US
Roger P. Holmstrom - St. Charles IL, US
Stuart D. Brorson - Marlborough MA, US
Eric J. Frankfort - Yorktown Heights NY, US
Paul C. Talmadge - Ansonia CT, US
Roger P. Holmstrom - St. Charles IL, US
Assignee:
Tellabs Operations, Inc. - Naperville IL
International Classification:
H04B 10/04
US Classification:
398198, 398197
Abstract:
Methods and apparatus for maintaining a pre-determined ratio of a pilot tone power and a total mean optical power of an optical signal are provided. One apparatus includes an optical source coupled to provide an optical signal in response to a DC bias and an AC bias corresponding to a pilot tone signal. A processor is coupled to compute each of an AC component and a DC component of the optical signal from the same digitally sampled signal. A feedback control is coupled to vary at least one of the DC bias and the AC bias in accordance with a difference between a pre-determined value and a ratio of the AC and DC components.
Central Station System Including Secondary Communication Path Established Through Commercial Telephone Network
View pageUS Patent:
41198158, Oct 10, 1978
Filed:
May 31, 1977
Appl. No.:
5/801822
Inventors:
Eric J. Frankfort - Brooklyn NY
David Stuart Terrett - Lincroft NJ
David Stuart Terrett - Lincroft NJ
Assignee:
American District Telegraph Company - Jersey City NJ
International Classification:
G08B 2900
G08B 2600
H04M 1100
G08B 2600
H04M 1100
US Classification:
1791753S
Abstract:
A central station system in which the central station is normally connected to one or more remotely located bridging points by a dedicated communication path, each bridging point having a plurality of output ports to which one or more remote station devices are connected. In response to address signals generated by the central station, abridging point connects an identified output port to the dedicated communication path to allow communication between the associated remote stations and the central station. All other output ports are electrically isolated from the dedicated communication path. In the event of failure of the dedicated communication path, apparatus is provided for establishing an alternate communication path through the commercial telephone network. The system is highly immune to tampering and other forms of failure because of automatic decision-making capabilities of the bridging point and other features of the apparatus.
Apparatus For Controlling The Write Beam In An Optical Data Recording System
View pageUS Patent:
45625670, Dec 31, 1985
Filed:
Nov 12, 1982
Appl. No.:
6/440897
Inventors:
Eric J. Frankfort - Yorktown Heights NY
George C. Kenney - Ossining NY
Robert McFarlane - New Rochelle NY
George C. Kenney - Ossining NY
Robert McFarlane - New Rochelle NY
Assignee:
North American Philips Corporation - New York NY
International Classification:
G11B 700
US Classification:
369106
Abstract:
Apparatus for recording data by means of a beam of radiation on a recording medium which upon exposure to the beam undergoes optically detectable changes in the form of pits, which apparatus includes means for reducing the beam intensity as a result of pit initiation thereby forming more accurate pits.