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The article presents information on the patent application 7,477,753 assigned to Siemens Audiologische Technik GmbH. The patent proposes a method where directional hearing is given binaural hearing aid coverage. Under this method, the signal transit time through one device of a binaural hearing aid fitting is calculated and, together with its amplification, transmitted wirelessly to the other device.

The article presents information on the patent application 7,471,800 assigned to In'Tech Industries, Inc. The patent proposes a wax guard system which has a permanently-affixed insert mounted into the sound output of an earmold shell, a selection of cerumen guard types, and a number of interchangeable caps covering the ear canal aperture with mesh.

The article presents information on the patent application 7,471,805 assigned to Central Coast Patent Agency, Inc. It proposes a hearing aid mechanism in which a speaker component comprising a coil wrapped around a compartment contains a magnet and a ferrous metal composite diaphragm which is suspended in a fluid filled with magnetic particles.

The article presents information on the patent application 7,477,753 related to hearing aid. The patent proposes a tube-shaped metallic container with a removal cap hermetically seals in a hearing aid. The hearing aid operates in a low-power mode during storage. As soon as the hearing aid is removed from the container and exposed to ambient air, it shifts to a higher power mode.

The article presents information on the patent application 7,469,209 related to method and apparatus for frame classification and rate determination in voice transcoders for telecommunications. The patent proposes a frame classification and rate decision module which uses source codec parameters from the current and previous frames to determine frame class, rate, and classification feature parameters for the destination codec.

The article presents information about the patent number 7,472,057 related to a detector for use in voice communications systems that was assigned to Broadcom Corp. on December 30, 2008. The detector identifies whether a voice data stream is encoded using a linear A-law G.711-type algorithm or not.

The article presents information about the patent number 7,472,059 related to a method and apparatus for robust speech classification that was assigned to Qualcomm Inc. on December 30, 2008. This method improves the classification accuracy in background noise of voiced and unvoiced speech for multi-mode variable rate coders. A normalized auto-correlation coefficient function threshold is determined for voiced and unvoiced speech.

The article presents information on the patent application 7,465,277 related to system and methods for conducting multiple diagnostic hearing tests. The patent proposes one integrated instrument for carrying out self-administered audiometric, tympanogram, acoustic reflex, and otoacoustic emission tests.

The article presents information about the patent number 7,478,040 related to a method for adaptive filtering that was assigned to Broadcom Corp. on January 13, 2009. This patent focuses on improving perceptual quality of a speech signal by reducing perceived audio coding noise and increasing the periodicity of voiced portions of speech by attenuating spectral valleys between harmonics.

The article presents information about the patent number 7,477,735 related to a system and method for enhanced stereo audio that was assigned to Tandberg Telecom AS on January 13, 2009. The method uses a stereo detector and the echo canceller for maintaining good lip synchronization with stereo audio signals without causing echo problems.

The article presents information about the patent number 7,478,309 related to a transmission line coding method, a transmission line decoding method, and apparatus for these methods that was assigned to Panasonic Corp. on January 13, 2009. The goal of the methods is to suppress degradation in a decoded audio signal without adding redundant bits.