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:
May. 06, 1997
Filed:
Aug. 02, 1994
Applicant:
Inventor:
Mokhtar Ziarati, Calabasas, CA (US);
Assignee:
Resonance Technology, Inc., Van Nuys, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R / ;
U.S. Cl.
CPC ...
381187 ; 381189 ; 181129 ; 181130 ;
Abstract
A headset is provided for an audio and video system that is compatible with the strong magnetic fields generated by Magnetic Resonance Imaging equipment. In the system, the audio portion of the signal is passed through an amplifier and appropriate RF filters and chokes, and fed into a pneumatic transducer inside the magnet room. A headset having an inner set (portion) connects the output of the pneumatic transducer to the patient's ear, while an outer set covers the patient's ear to block out gradient knocking noises.