Patent Application
20080232627
This disclosure relates to devices which assist hearing, and more specifically to method and apparatus for a pinna control for a hearing assistance device.
The ability to adjust operational parameters of a hearing assistance device is a feature of the device that is both useful and desirable. For example, users have benefited from the ability to adjust the volume of a hearing assistance device.
Hearing assistance devices employ different types of controls to assist the user in making operational adjustments. Hearing assistance devices that are small and discreet are attractive to most users of such devices. However, providing controls on small devices requires the user to have a good level of dexterity. Furthermore, physical features of a hearing assistance device, such as the microphone hood, can be confused with a pushbutton or other control, especially for user's with limited dexterity. A design which addresses these concerns, and which is inexpensive to manufacture, is desired. Additional opportunities for improvement in hearing assistance device controls resides in limiting susceptibility of a user control to allow moisture into the housing of the hearing assistance device and to make the appearance and use of any control as discreet as possible.
The above-mentioned problems and others not expressly discussed herein are addressed by the present subject matter and will be understood by reading and understanding this specification.
The present subject matter relates to hearing assistance devices with user controls positioned about the housing of the hearing assistance device such that the control is activated by applying pressure to the control indirectly through the pinna of the user's ear. One embodiment of the present subject matter includes a behind-the-ear hearing assistance device with a housing and a user control located on a lateral side of the housing. In various embodiments, the “pinna” control is actuated by depressing the pinna of a user's ear when the hearing assistance device is worn by the user as directed. In additional embodiments, the pinna control is adjacent the side of the user's head. The pinna control enables the user to cycle through or select preset operational values of the hearing assistance device to adapt performance of the device to the user's requirements.
This Summary is an overview of some of the teachings of the present application and not intended to be an exclusive or exhaustive treatment of the present subject matter. Further details about the present subject matter are found in the detailed description and appended claims. Other aspects will be apparent to persons skilled in the art upon reading and understanding the following detailed description and viewing the drawings that form a part thereof, each of which are not to be taken in a limiting sense. The scope of the present invention is defined by the appended claims and their legal equivalents.
The following detailed description of the present invention refers to subject matter in the accompanying drawings which show, by way of illustration, specific aspects and embodiments in which the present subject matter may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present subject matter. References to “an”, “one”, or “various” embodiments in this disclosure are not necessarily to the same embodiment, and such references contemplate more than one embodiment. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope is defined only by the appended claims, along with the full scope of legal equivalents to which such claims are entitled.
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In various embodiments, the pinna control is spring loaded to operate with a low activation force. In various embodiments the pinna control operates as a pushbutton, to provide a momentary input to the enclosed hearing assistance electronics. In other examples, the pinna control operates as a toggle button providing a maintained input to the enclosed hearing assistance electronics on every other operation of the pinna control. In various embodiments, the control is made with a quantum tunneling composite which performs like a traditional mechanical switch. With a quantum tunneling composite, resistance through the composite remains high when no pressure is applied to the composite. Electrically, the circuit connected to the control remains open. When pressure is applied to the composite, the resistance through the composite lowers and the closing the circuit and providing an input signal to the hearing assistance electronics. Examples of quantum tunneling composites include QTC Switch Substrates made by Peratech.
This application is intended to cover adaptations or variations of the present subject matter. It is to be understood that the above description is intended to be illustrative, and not restrictive. The scope of the present subject matter should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
