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. 03, 2007
Filed:
Apr. 19, 2004
Thomas R. Mcbride, Newbury, OH (US);
Thomas R. McBride, Newbury, OH (US);
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A magnetic field gradient system includes a magnetic field gradient coil () and a magnetic field gradient amplifier () that operatively communicates with the magnetic field gradient coil (). A pre-emphasis digital circuit () receives a digital magnetic field gradient control signal and outputs pre-emphasis correction terms. The preemphasis digital circuit includes a delay circuit () that delays the digital magnetic field gradient control signal by a selected time interval to produce a delayed digital magnetic field gradient control signal. A plurality of digital filters () each have selected time constant and amplitude parameters. The digital filters () receive the delayed digital magnetic field gradient control signal and output the pre-emphasis correction terms. A parameter memory () stores at least the time constant and amplitude parameters of the digital filters ().