Patent · US Expired

Circuit arrangement for generating rf signals for MR examinations

US5004983A · kind A · utility

14Cited by

2References

20Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Roland Proksa · Hamburg, DE
Peter Roschmann · Hamburg, DE
Noel J. M. van den Berg · Zoetermeer, NL

Key dates

Filing date	Jun 1, 1989
Grant date	Apr 2, 1991
Priority date	—
Expiry date	Jun 1, 2009

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/3607
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a circuit arrangement for generating rf signals for MR examinations, comprising a read-only memory in which a signal is stored in the form of a series of data words, an address generator for reading data words from the read-only memory with a clock frequency, and a digital-to-analog converter which succeeds the read-only memory. In order to reduce the required storage capacity, a sinusoidal signal in the form of a series of data words is stored in the memory.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.