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:
Nov. 07, 1989
Filed:
Jun. 10, 1987
Mark W Kroll, Minnetonka, MN (US);
Mark R Pommrehn, Eden Prairie, MN (US);
Cherne Medical, Inc., Minneapolis, MN (US);
Abstract
The device of the present invention provides a signal modulation system. The system has a first station communicatively connected to at least first and second optical fibers. The first station has a transmitter to produce an unmodulated light carrier signal through the first optical fiber and a receiver to convert a modulated light signal from the second optical fiber to a demodulated electrical signal for output. The system also has a second station communicatively connected to the first and the second optical fibers. The second station has an amplifier and power source which receive input carrier modulating signals, a modulation circuit, and an electro-optical modulator constructed and arranged to modulate transmission of the light carrier signal from the first optical fiber to the second optical fiber.