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Audio device and method with voice coil channel and separate amplified telecoil channel

A technology of audio equipment and pick-up coils, applied in sub-office voice amplifiers, sub-office equipment, voice analysis, etc.

Active Publication Date: 2016-08-10
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The telecoil is coupled to convert the audio signal rather than the anti-noise signal into the main magnetic field signal

Method used

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  • Audio device and method with voice coil channel and separate amplified telecoil channel
  • Audio device and method with voice coil channel and separate amplified telecoil channel
  • Audio device and method with voice coil channel and separate amplified telecoil channel

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Embodiment Construction

[0012] Several embodiments of the present invention are now explained with reference to the accompanying drawings. Whenever the shapes, relative positions, and other aspects of parts described in the embodiments are not clearly defined, the scope of the present invention is not limited to the shown parts, and the shown parts are meant for illustration only. the goal of. Furthermore, while numerous details are set forth, it is understood that some embodiments of the invention may be practiced without these details. In other instances, well-known circuits, structures and techniques have not been shown in detail in order not to obscure the understanding of this description.

[0013] figure 1 A hearing impaired user 2 is shown holding an exemplary portable audio device 1 . A user 2 wears a hearing aid 6 comprising a T-coil 8 in his ear 3 . The hearing aid 6 is capable of operating in either acoustic coupling mode (in which a built-in microphone (not shown) is used to pick up l...

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PUM

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Abstract

The present invention discloses an audio device having a voice coil channel and a separately amplified telecoil channel. The portable audio device has a voice coil audio signal processor in which a desired audio content signal is combined with an anti-noise signal generated by an active noise cancellation block. A voice coil amplifier receives the volume setting and is coupled to the output of the voice coil audio signal processor. A loudspeaker is coupled to the output of the voice coil amplifier. In addition, the telecoil audio signal processor also receives the desired audio content and feeds to the telecoil amplifier which receives the telecoil coupling strength setting and then to the telecoil. Other embodiments are also described and claimed.

Description

technical field [0001] The present invention relates to portable audio equipment. Background technique [0002] Hearing aids are usually worn by people who have suffered hearing loss, and can compensate for hearing loss by amplifying the local sound field. The hearing aid operates in microphone (acoustic) mode or telecoil (induction) mode. In microphone mode, sound waves incident on the microphone integrated in the hearing aid are converted into electrical audio signals. In telecoil mode, an induction coil (also called a telecoil or T-coil), which may also be located in the hearing aid, picks up a local magnetic field that has been modulated by a dedicated coil in the receiver or nearby earpiece. In both modes, the resulting electrical audio signal that has been picked up is then processed, amplified, and then converted into sound that can be heard by the user (via a small speaker inside the hearing aid). [0003] Hearing aids do not always work well with some portable co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/02H04M1/60G10L21/0208H04M1/72478
CPCH04R3/005H04R25/554H04R2410/05H04R2499/11H04M1/6016H04M1/72478H04R25/00H04R3/04H04R25/50H04R25/505H04R2460/01
Inventor R·M·戴夫陈少海
Owner APPLE INC