Patent ID: 8698911
Filing Date: 2014-04-15
Classification: H04N

Abstract:
1. A photographing device comprising: a photographing unit that photographs an image by an optical system; a microphone that converts a sound wave into an electrical signal; a signal detection unit that detects at least one of a sensor signal detected by a sensor for detecting a photographing state and a control signal for controlling photographing; a determining unit that determines whether there is a change in a photographing operation using at least one of the sensor signal and the control signal; and a noise processing unit that makes a process of reducing noise in the electrical signal different when the determining unit determines that there is a change in the photographing operation and when the determining unit does not determine that there is a change in the photographing operation, wherein the noise processing unit performs the noise reduction process in a time domain on the electrical signal when the determining unit determines that there is a change in the photographing operation, and performs the noise reduction process in a frequency domain on the electrical signal when the determining unit does not determine that there is a change in the photographing operation.