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Imaging device, sound treating circuit, noise reduction circuit, noise reduction method and program

A circuit and noise reduction technology, applied in transducer circuits, speech analysis, electrical components, etc., can solve problems such as inability to obtain sufficient noise reduction effects, and complicated noise propagation paths of microphone units

Inactive Publication Date: 2008-11-19
SONY CORP
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  • Abstract
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Problems solved by technology

Therefore, the noise propagation path to the microphone unit is complicated, and a sufficient noise reduction effect cannot be obtained in the passive method according to the prior art

Method used

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  • Imaging device, sound treating circuit, noise reduction circuit, noise reduction method and program
  • Imaging device, sound treating circuit, noise reduction circuit, noise reduction method and program
  • Imaging device, sound treating circuit, noise reduction circuit, noise reduction method and program

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Embodiment Construction

[0041] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0042] FIG. 1 shows an example of the configuration of an imaging device according to an embodiment of the present invention. The imaging device includes an imaging unit 11 , an image processing unit 12 , a sound obtaining unit 13 , a sound processing unit 14 , a multiplexing unit 15 , and a recording / reproducing unit 16 .

[0043] The imaging unit 11 takes an image of a subject as an image signal and realizes it by, for example, a CCD (Charge Coupled Device) sensor or a CMOS (Complementary Metal Oxide Semiconductor) sensor. The image processing unit 12 performs predetermined image processing on the image signal captured by the imaging unit 11 .

[0044] The sound obtaining unit 13 obtains a sound signal from a subject, and is realized by, for example, a microphone. The sound processing unit 14 performs predetermined signal processing on the sou...

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Abstract

The invention provides an imaging device, voice process circuit, noise reducing circuit, noise reducing method and program. The noise reducing circuit includes: a de-noising unit configured to eliminate a noise band from an input voice signal; a noise recognizing unit configured to recognize noise included in the voice signal; a de-noising period generating unit configured to generate a signal indicating a de-noising period in accordance with an occurrence period of the recognized noise; and a selecting unit configured to select an output of the de-noising unit when the de-noising period is indicated and select the voice signal when the de-noising period is not indicated.

Description

[0001] Cross References to Related Applications [0002] The present invention contains subject matter related to Japanese Patent Application JP2007-132276 filed in the Japan Patent Office on May 18, 2007, the entire content of which is hereby incorporated by reference. technical field [0003] The present invention relates to an imaging device, and more particularly, to a sound processing circuit and a noise reduction circuit for reducing noise in a sound signal in the imaging device, a processing method in the circuit, and a program for causing a computer to execute the method. Background technique [0004] In recent years, digital home appliances whose main bodies include small microphones, such as video cameras, digital cameras, mobile phones, and IC recorders, have been further miniaturized. In this case, the user may accidentally touch the microphone during recording, or noise due to click operations of various function switches may propagate through the case and be in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/02H04R3/00H04N9/802G10L21/0208G10L21/0224G10L21/0232G10L21/0264
CPCG10L21/0208
Inventor 小沢一彦
Owner SONY CORP
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