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:
Jul. 25, 1995
Filed:
Jul. 29, 1994
John Van Heteren, San Francisco, CA (US);
Mitsuaki Arakawa, Hillsborough, CA (US);
Lawrence E Crooks, Richmond, CA (US);
John C Hoenninger, III, Oakland, CA (US);
Thomas McDermott, Redwood City, CA (US);
Keiji Furui, Otawara, JP;
The Regents of the University of California, Oakland, CA (US);
Abstract
A local frequency generator employing a single crystal oscillator, latches and direct digital synthesizer circuits digitally produces all signals needed in the transmitter channel of a MRI system to generate MRI transmitter RF pulses. The local frequency generator is operable in both the single side band and double side band modes and has the capability of switching between the modes. The generator is constructed with a phase resetting capability for providing the plural output frequencies needed for making plural MRI slices.