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 We also offer free shipping on all orders.CN2613119Y - Mobile/fixed compatible mobile phone signal isolator If you are not satisfied with your purchase, you can return it within 14 days for a full refund. What’s The Warranty, Return & Refund Policy?Ī offers a one-year warranty for all of our products. Portable signal jammers are also useful for security purposes, as they can be used to block communications between wireless cameras. Signal jammers can also be used to block GPS signals, preventing tracking of a person’s location.ĥ. Portable signal jammers can also be used to block communications between two people, such as in a domestic dispute or during a business negotiation.Ĥ. They can also be used in private settings, such as offices and homes, to block unwanted communications from telemarketers and other nuisance callers.ģ. Portable signal jammers can be used to prevent unauthorized communications in public places, such as schools and hospitals.Ģ. What Are The Benefits Of Portable Signal Jammers?ġ. With all of the data breaches and privacy concerns, you never know who might be listening in.Ī portable signal jammer can give you the peace of mind that your conversations are safe from prying ears. These days, it is more important than ever to keep your conversations secure. As the name suggests, portable signal jammers are devices that can be carried around and used to block signals from communication devices such as cell phones, radios, and WiFi.
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