Robert Mcelheny resumes & CV records
Resumes
Robert K Mcelheny, 62897 Persimmon Ave, Sunnyvale, CA 94087
Robert Mcelheny Phones & Addresses
897 Persimmon Ave, Sunnyvale, CA 94087 408-5908045
Shippensburg, PA
897 Persimmon Ave, Sunnyvale, CA 94087
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Robert K Mcelheny
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Publications & IP owners
Us Patents
Optical Transceiver Using Heterodyne Detection And A Transmitted Reference Clock
US Patent:
7620318, Nov 17, 2009
Filed:
Jan 14, 2008
Appl. No.:
12/014019
Inventors:
Ji Li - San Jose CA, US
Laurence J. Newell - Mercer Island WA, US
Tin Vo - San Jose CA, US
Ting K. Yee - Foster City CA, US
Peter H. Chang - San Jose CA, US
Robert K. McElheny - Sunnyvale CA, US
Laurence J. Newell - Mercer Island WA, US
Tin Vo - San Jose CA, US
Ting K. Yee - Foster City CA, US
Peter H. Chang - San Jose CA, US
Robert K. McElheny - Sunnyvale CA, US
International Classification:
H04B 10/08
H04B 10/00
H04B 10/00
US Classification:
398 32, 398155
Abstract:
A heterodyne communication system uses coherent data modulation that is resistant to phase noise. In particular, a pilot tone and reference clock signal are transmitted along with the modulated data to form the basis of an electrical demodulation local oscillator at the receiver. The pilot tone and/or reference clock signal carry phase noise which is correlated with the phase noise in the data signal. At the receiver, the local oscillator is generated from the pilot tone and reference clock signal in a manner so that the local oscillator also has phase noise which is correlated with the phase noise in the data signal. Thus, the two noise components can be used to cancel each other during demodulation of the data signal using the local oscillator.
Optical Transceiver Using Heterodyne Detection And A Transmitted Reference Clock
US Patent:
7346279, Mar 18, 2008
Filed:
Mar 25, 2002
Appl. No.:
10/107085
Inventors:
Ji Li - San Jose CA, US
Laurence J. Newell - Mercer Island WA, US
Tin Vo - San Jose CA, US
Ting K. Yee - Foster City CA, US
Peter H. Chang - San Jose CA, US
Robert K. McElheny - Sunnyvale CA, US
Laurence J. Newell - Mercer Island WA, US
Tin Vo - San Jose CA, US
Ting K. Yee - Foster City CA, US
Peter H. Chang - San Jose CA, US
Robert K. McElheny - Sunnyvale CA, US
Assignee:
Forster Energy LLC - Las Vegas NV
International Classification:
H04B 10/08
H04B 10/00
H04B 10/00
US Classification:
398 32, 398155
Abstract:
A heterodyne communication system uses coherent data modulation that is resistant to phase noise. In particular, a pilot tone and reference clock signal are transmitted along with the modulated data to form the basis of an electrical demodulation local oscillator at the receiver. The pilot tone and/or reference clock signal carry phase noise which is correlated with the phase noise in the data signal. At the receiver, the local oscillator is generated from the pilot tone and reference clock signal in a manner so that the local oscillator also has phase noise which is correlated with the phase noise in the data signal. Thus, the two noise components can be used to cancel each other during demodulation of the data signal using the local oscillator.
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