Patent ID: 11877881
Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
Field: Measurement (Instruments)
Classification: CPC A  G | IPC A  G

Claim 13:
14. The medical imaging apparatus of claim 11, further comprising gradient coils configured to generate gradient magnetic fields;
wherein the one or more arrays of noise detection units include
a first array of noise detection units disposed in the scanning bore and configured to detect first noise signals, at least part of the first noise signals resulting from an operation of the gradient coils;
a second array of noise detection units disposed near the at least one target portion and configured to detect second noise signals; and

to direct the one or more arrays of denoising units to produce, based on the signals obtained from the one or more arrays of noise detection units, the sound, the processing circuit is configured to:
determine anti-noise signals based on the first noise signals and the second noise signals; and
direct the one or more arrays of denoising units to produce the sound in accordance with the anti-noise signals.