Invention Grant
- Patent Title: Demagnetization circuit of a mobile phone
- Patent Title (中): 手机的退磁电路
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Application No.: US12348639Application Date: 2009-01-05
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Publication No.: US07813100B2Publication Date: 2010-10-12
- Inventor: Yi-Fang Lin , Hsi-Chieh Chen
- Applicant: Yi-Fang Lin , Hsi-Chieh Chen
- Applicant Address: TW Tu-Cheng City, Taipei County
- Assignee: Chi Mei Communication Systems, Inc.
- Current Assignee: Chi Mei Communication Systems, Inc.
- Current Assignee Address: TW Tu-Cheng City, Taipei County
- Agent D. Austin Bonderer
- Priority: CN200810304539 20080917
- Main IPC: H01F13/00
- IPC: H01F13/00
Abstract:
A demagnetization circuit for reducing interference in a mobile phone includes a wave filter, a demagnetization circuit and an audio playing circuit. The wave filter is configured to filter a received audio signal from the mobile phone. The wave filter includes an input that receives the audio signal, and an output. The demagnetization circuit is structured and arranged to generate an opposite magnetic field to that of the mobile phone to reduce pulse magnetic fields generated by the mobile phone.
Public/Granted literature
- US20100067162A1 DEMAGNETIZATION CIRCUIT OF A MOBILE PHONE Public/Granted day:2010-03-18
Information query
IPC分类:
| H | 电学 |
| H01 | 基本电气元件 |
| H01F | 磁体；电感；变压器；磁性材料的选择 |
| H01F13/00 | 磁化或去磁的设备或方法 |
