Resources Contact Us Home
Device and method of use for reducing hearing aid RF interference

Image Number 7 for United States Patent #6639564.

An apparatus for reducing hearing aid radio frequency (RF) interference including a directional multi-band and/or single band antenna for use with PWDs such as digital cellphones is disclosed. The apparatus greatly reduces or eliminates the audio noise induced in hearing aids by the PWDs and allows operation of a hearing aid during PWD operation. In operation, the apparatus may be provided on the PWD side away from the user's head. The apparatus may be integrated into the PWB during its manufacture or provided as an after market assembly for a PWD that has a port for connection of an external antenna. The apparatus provides for improved front-to-back ratio as compared to antennas currently in use on PWD's, and therefore also reduces SAR (specific absorption rate), the level of RF energy received into the head by a PWD.

  Recently Added Patents
Process and intermediates for preparing lapatinib
Air driven alternators for battery powered vehicles
Apparatus for providing location information of hand-held device and method thereof
Dynamic rebasing of persisted time information
Method of and apparatus for evaluating an optimal irradiation amount of an electron beam for drawing a pattern onto a sample
System and method for controlling a wireless device
Active element machine computation
  Randomly Featured Patents
Mechanical/electrical displacement transducer
Convertible wash cloth and apron
Device for handling and testing a cell adapted for sampling a pressurized fluid
Inhibition of viral infection and spread with viral and RhoA-derived peptides
Display device and driving device thereof
Process for augmenting or enhancing the aroma of perfumed articles by adding thereto triconjugated dienones
Conduit arrangement with protection against rupture and leakage
Light module
Composition for altering the water function characteristics of mineral slurries
Device having touch sensitivity functionality