Invention Grant
- Patent Title: Noise suppressor, electronic apparatus, and noise suppression characteristic control method
- Patent Title (中): 噪声抑制器，电子设备和噪声抑制特性控制方法
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Application No.: US13064595Application Date: 2011-04-01
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Publication No.: US08127886B2Publication Date: 2012-03-06
- Inventor: Motoyasu Utsunomiya
- Applicant: Motoyasu Utsunomiya
- Applicant Address: JP Tokyo
- Assignee: NEC Display Solutions, Ltd.
- Current Assignee: NEC Display Solutions, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: McGinn IP Law Group, PLLC
- Priority: JP2006-232166 20060829
- Main IPC: F01N13/00
- IPC: F01N13/00
Abstract:
A noise suppression characteristics adjustment method includes adjusting noise suppression characteristics of a noise suppressor, which includes a muffler having a reflection plate for reflecting sound from the cooling fan, the reflection plate being provided at a position in the cooling duct confronting an intake plane of the cooling fan and formed substantially parallel to the intake plane. A sound-absorbing part of the muffler is provided on the reflection plate. A distance d between the reflection plate and the intake plane is set such that d
Public/Granted literature
- US20110232992A1 Noise suppressor, electronic apparatus, and noise suppression characteristic control method Public/Granted day:2011-09-29
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