places such as library, church, cinema, lecture hall, recording studio are all brought influence because of the noise of ringing sound of cell phone to surrounding environment.5. school classroom because of the mobile phone signal noise jamming, and has influenced normal academic environment.4. in recent years, the phenomenon that then the examinee of taking place in rapid succession not obey the rule in the examination hall utilizes the modern communications instrument to practise fraud causes education department to be puzzled one's brains for this reason.3. in the middle of the meeting, owing to general mobile phone no signal isolation features, and can not cut off the external communication of personnel participating in the meeting again, the noise jamming of ringing sound of cell phone causes meeting to carry out smoothly.2. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by 吴瑞宗 filed Critical 吴瑞宗 Priority to CNU032252463U priority Critical patent/CN2613119Y/en Application granted granted Critical Publication of CN2613119Y publication Critical patent/CN2613119Y/en Anticipated expiration legal-status Critical Status Expired - Fee Related legal-status Critical Current LinksĪlong with the fast development of information age, mobile phone becomes everyone essential means of communication.Thereby this time the ringing sound of cell phone of those volts brings the cumbersome and puzzled of extremely inconvenience also can for people in the work life.It mainly shows the following aspects.1. Inventor 吴瑞宗 Original Assignee 吴瑞宗 Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number CNU032252463U Other languages Chinese ( zh) Google Patents Mobile/fixed compatible mobile phone signal isolatorĭownload PDF Info Publication number CN2613119Y CN2613119Y CNU032252463U CN03225246U CN2613119Y CN 2613119 Y CN2613119 Y CN 2613119Y CN U032252463 U CNU032252463 U CN U032252463U CN 03225246 U CN03225246 U CN 03225246U CN 2613119 Y CN2613119 Y CN 2613119Y Authority CN China Prior art keywords capacitor signal inductance pin resistance Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents CN2613119Y - Mobile/fixed compatible mobile phone signal isolator CN2613119Y - Mobile/fixed compatible mobile phone signal isolator
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