Abstract:
PROBLEM TO BE SOLVED: To provide a hearing aid by which a rate of distortion in an output signal is minimized even for an input voice signal whose level is high so as to provide a clear voice to the user. SOLUTION: A hearing aid 10 is provided with a preamplifier stage 60 that has an input terminal 64 and an output terminal 78 connecting to a voice detection means and whose gain is adjusted depending on a level of a signal at the output terminal 78 and with an output amplifier stage 90 that has an input terminal 84 connecting to the output terminal 78 and an output terminal 102 connecting to an electroacoustic conversion means 98 and whose gain is automatically adjusted in response to a level of the signal at the output terminal 102.
Abstract:
PROBLEM TO BE SOLVED: To provide a gain compression amplifier having a linear gain over a wide dynamic range by using a gain compressing technique. SOLUTION: This gain compression amplifier 60 is provided with an amplifier 62, a gain controller 64 connected between the input and output of this amplifier 62, and a gain control circuit 66 connected with the output of the amplifier 62 and connected with the gain controller 64. The gain control circuit 66 compares a voltage at the output of the amplifier 62 with a prescribed threshold voltage, and generates a gain control signal. The gain controller 64 operates according to this gain control signal, and continuously adjusts the gain of the amplifier 62. This gain compression amplifier 60 is used for a hearing aid so that voice distortion can be minimized, and the convenience can be improved for a user.
Abstract:
The present disclosure includes various methods and apparatus for controlling directionality of a hearing assistance device including a pair of directional microphones. In various examples, the hearing assistance device includes a pair of directional microphones and an omnidirectional microphone. In various examples, the hearing assistance device includes a directional microphone and an omnidirectional microphone. In examples with multiple directional microphones, various angles can be employed. For example, in some applications the first directional axis can be about ninety degrees offset of the second directional axis. The microphones are aligned with an intended direction of reception in some embodiments. In some examples the microphones are not aligned with an intended direction of reception. Other variations are possible without departing from the scope of the present subject matter.
Abstract:
An apparatus is provided that includes an input system, an output system, and a sensor for sensing magnetic fields. In one example, a signal processing circuit electrically connects the input system to the output system, and a magnetic sensor adapted to inhibit the acoustic input and function as a magnetic input in the presence of a magnetic field. In one example, the magnetic sensor includes a giant magneto resistive (GMR) sensor. In another example, the magnetic sensor includes an anisotropic magneto resistive (AMR) sensor. The magnetic field can be generated by, among other things, a magnet in a telephone handset. The hearing aid further is programmed based on time-varying characteristics of the magnetic field. Wireless activation or deactivation of the hearing aid is also described. Other examples and options are provided herein.
Abstract:
Systems, devices, and methods are provided to inhibit apparent amplitude modulation in non-linear processing that causes distortion in a processed signal. One aspect of the invention includes a hearing aid. The hearing aid includes a microphone to receive an input signal, a speaker to reproduce the input signal, and a processor. The processor processes the input signal using a gain. The processor includes an inhibitor, which inhibits distortions, and an adjuster, which adjusts the gain. The inhibitor acts to smooth en envelope of the input signal to inhibit undesired modulation. The adjuster adjusts the gain if the envelope is either above or below a threshold. The hearing aid further includes a compression recapture system to supply the compressed portion of the input signal to more closely reproduce the actual input signal.
Abstract:
The present subject matter includes a reality multisensory display device (MSD) in the form of eyeglasses, where the device is configured to augment information to the wearer of the device, for example to compensate for hearing loss of a wearer of the device by augmenting auditory information.
Abstract:
A hearing aid kit includes a standard fit, completely-in-canal (CIC) hearing aid and a hearing aid tool set. The CIC hearing aid is for extended use and includes a core module inserted into a sleeve. The core module and the sleeve each include various features providing for a minimum overall size, ease of insertion, removal, and cleaning, and enhanced sound transmission. The tool set is configured to be stored and carried in a single piece and provides for adjustment and cleaning of the CIC hearing aid. Open ear fits and occlusive ear fits are possible using different sleeves.
Abstract:
A hearing assistance device (100), comprising a microphone (101) to receive sound, signal processing electronics electrically connected to the microphone, a receiver electrically connected to the signal processing electronics and a switch (102) electrically connected to the signal processing electronics. The switch (102) includes conductive silicone (106) adapted to change the switch from a first state to a second state when activated. Contacts comprising conductive silicone (105) provide an electrical connection between the microphone (101) and the signal processing electronics.
Abstract:
The present subject matter includes method and apparatus for an insulating layer applied to a battery to effectively increase the insulated separation between the anode and cathode contact surfaces of the battery. This increase in effective separation between anode and cathode decreases the probability that moisture applied to the battery will cause substantial ohmic conductivity between the anode and the cathode. Consequently, fewer batteries will be prematurely depleted or destroyed by moisture and fewer devices holding those batteries will need repair. The present subject matter serves to prevent or eliminate discharge of corrosive battery chemicals due to moisture and operating in wet environments. The life of batteries and devices using the present subject matter is thus extended. Additional method and apparatus can be found in the specification and as provided by the attached claims and their equivalents.
Abstract:
Systems, structures, and methods are provided to fit, program, or upgrade a hearing aid system to a patient. One embodiment includes the use of a mobile device to interact with the hearing aid system through a short-range network. The mobile device is also adapted to communicate with a server through a long-range wireless network. The server may reside on the Internet.