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:
Feb. 29, 2000
Filed:
Mar. 27, 1997
Mark Davies, Limerick, IE;
Forfas, Dublin, IE;
Abstract
An optical slip ring system (1) has a rotor interface (2) which can bolt on to a high speed rotor in a modular manner. The rotor interface (2) has circular circuit boards (7) containing the necessary drive circuits and power supply circuits for transducers mounted on the rotor. The drive circuit on the boards (7) drive three rings of emitter LEDs (9). The drive is frequency modulated and there are a number of transducers associated with each ring of emitter LEDs (9). These signals are frequency division multiplexed to ensure real time processing takes place. A fixed support (3) has a single receiver LED (15) associated with each ring of emitter LEDs (9). Contactless power is provided by an inductive power supply having a primary winding (16) on the fixed support bracket (3) and a secondary winding (10) on the rotor interface (2).