Tinnitus masker
Patent 5325872 Issued on July 5, 1994. Estimated Expiration Date: 
August 31, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 31, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesPatient controlled master hearing aid Apparatus for treatment of sensorineural hearing loss, vertigo, tinnitus and aural fullness Tinnitus-masker Patent #: 5167236 InventorAssigneeApplicationNo. 923803 filed on 08/31/1992US Classes:128/897, MISCELLANEOUS600/28, Audio (e.g., heartbeat, "white noise", etc.)600/559Ear or testing by auditory stimulusExaminersPrimary: Sykes, Angela D.Attorney, Agent or FirmInternational ClassA61B 005/00Foreign Application Priority Data1990-05-09 DEAbstractThe invention relates to a tinnitus masker with one or more signal generators, a controllable amplifier (2), one or two electroacoustic transducers (3) for conversion of electrical signals into acoustic signals and a voltage source, whereby at least one of the signal generators (1) generates a continuously repeated, sinusoidal pure tone signal which slowly moves through the audio frequency range and whose cycle duration can be adjusted between 0.1 and 1000 seconds. | |
