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Voice input device, its manufacturing method and information processing system

A voice input, voice technology, applied in frequency/direction characteristic devices, sensor parts, sensors and other directions

Inactive Publication Date: 2009-09-23
TAIWAN SEMICON MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the environment in which the voice input device is used, there may be voices other than the target voice such as background noise.

Method used

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  • Voice input device, its manufacturing method and information processing system
  • Voice input device, its manufacturing method and information processing system
  • Voice input device, its manufacturing method and information processing system

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Embodiment Construction

[0206] Hereinafter, embodiments to which the present invention is applied will be described with reference to the drawings. However, the present invention is not limited to the following embodiments. In addition, the present invention includes free combinations of the following contents.

[0207] 1. Structure of the voice input device of the first embodiment

[0208] First, refer to Figure 1 ~ Figure 3 , the structure of the voice input device 1 to which the embodiment of the present invention is applied will be described. In addition, the voice input device 1 described below is a short-talk type voice input device, for example, it can be applied to voice communication equipment such as a mobile phone and a transceiver (transceiver) or utilizes a device for analyzing input voice. Technology information processing systems (voice authentication systems, voice recognition systems, command generation systems, electronic dictionaries, translators, remote controls for voice inpu...

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Abstract

The invention provides a voice input device, its manufacturing method and information processing system. The voice input device includes a first microphone (710-1) with a first vibrating membrane, a second microphone (710-2) with a second vibrating membrane, and a difference signal generating unit (720) that generates a difference signal between first and second voltage signals. The first and second vibrating membranes are disposed to make a noise intensity ration smaller than an input voice intensity ratio indicative of a ratio of the intensity of input voice components. The difference signal generating unit (720) includes a delay unit (730), and a difference signal output unit (740) that generates a difference signal between delayed signals to which the delay unit gives delays and that outputs the difference signal.

Description

technical field [0001] The invention relates to a voice input device, a manufacturing method thereof, and an information processing system. Background technique [0002] It is preferable to receive only the intended voice (the user's voice) when talking on a telephone or the like, or performing voice recognition, voice recording, or the like. However, in the environment in which the voice input device is used, there may be voices other than the target voice such as background noise. Therefore, a voice input device having a noise removal function is being developed. [0003] As a technique for removing noise in a noisy environment, known methods include a method of making a microphone sensitive to directivity, or a method of using the arrival time difference of sound waves to identify the direction of arrival of sound waves, and remove noise through signal processing. . [0004] In addition, in recent years, electronic devices have been increasingly miniaturized, and techn...

Claims

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Application Information

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IPC IPC(8): H04R3/00H04R1/40H04R31/00
Inventor 高野陆男杉山精福冈敏美小野雅敏堀边隆介田中史记前田重雄猪田岳司丁子英树
Owner TAIWAN SEMICON MFG CO LTD
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