发明名称 |
Headphone device, signal processing device, and signal processing method |
摘要 |
A headphone device includes: a sound reproduction unit having a diaphragm which is configured to perform sound reproduction based on a sound signal; a sound pickup unit configured to perform a sound pickup operation; a filtering unit configured to apply filtering to a picked-up sound signal obtained by the sound pickup unit, to give a noise-cancelling signal characteristic; a combining unit configured to combine the picked-up sound signal that has undergone filtering, and a listening sound signal which is inputted separately, to generate a sound signal supplied to the sound reproduction unit; and an abnormality determination unit configured to determine occurrence or non-occurrence of an abnormal sound, on the basis of a result of level detection of a sound signal obtained within a sound signal processing system that includes the filtering unit and the combining unit and is formed between the sound pickup unit and the sound reproduction unit.
|
申请公布号 |
US8218782(B2) |
申请公布日期 |
2012.07.10 |
申请号 |
US20090409830 |
申请日期 |
2009.03.24 |
申请人 |
ASADA KOHEI;ITABASHI TETSUNORI;OZAWA NORIYUKI;SONY CORPORATION |
发明人 |
ASADA KOHEI;ITABASHI TETSUNORI;OZAWA NORIYUKI |
分类号 |
G10K11/16;H03B29/00 |
主分类号 |
G10K11/16 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|