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:
May. 05, 2009
Filed:
Aug. 13, 2007
Frank H. Levinson, The Edge on Cairnhill, CA (US);
Gerald F. Sage, Chico, CA (US);
Arthur Michael Lawson, Morgan Hill, CA (US);
Willem A. Mostert, Issaquah, WA (US);
Frank H. Levinson, The Edge on Cairnhill, CA (US);
Gerald F. Sage, Chico, CA (US);
Arthur Michael Lawson, Morgan Hill, CA (US);
Willem A. Mostert, Issaquah, WA (US);
Finisar Corporation, Sunnyvale, CA (US);
Abstract
A return path transmitter includes an optical signal receiver configured to receive a digital optical signal and generate therefrom a first digitized RF data stream and a sample clock. The return path transmitter further includes an RF signal receiver, coupled to the optical signal receiver, configured to receive and convert the analog RF data signal into a second digitized RF data stream of digitized RF data samples at a rate determined by the sample clock. The return path transmitter further includes a summing circuit configured to mathematically sum the first and second digitized RF data streams so as to generate a third digitized RF data stream. The return path transmitter further includes an optical transmitter configured to convert an output data stream into a serialized optical data signal for transmission over an optical fiber, the output data stream including the third digitized RF data stream.