The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 12, 1993
Filed:
Oct. 16, 1990
Applicant:
Inventors:
Henery A Blauvelt, Los Angeles, CA (US);
Israel Ury, Los Angeles, CA (US);
David B Huff, Downey, CA (US);
Howard L Loboda, Los Angeles, CA (US);
Assignee:
Ortel Corporation, Alhambra, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
359189 ; 330308 ; 330165 ; 333 32 ;
Abstract
This optical receiver is capable of receiving broadband R-F modulated signals transmitted over fiber-optic cable. The receiver comprises a photodiode impedance matched to the input of an low noise, low distortion amplifier by an impedance matching transformer. A passive tuning network is placed between the photodiode and the transformer to improve the high frequency performance of the receiver. Distortion of the optical receiver is further reduced by cancelling even power distortion products from out of phase signals generated by the photodiode.