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A covert listening device, more commonly known as a bug or a wire, is usually a combination of a miniature radio transmitter with a microphone. The use of bugs, called bugging, or wiretapping is a common technique in surveillance , espionage and police investigations.
On 25 August 2009, U.S. patent 7,580,533 was issued for a device that uses a laser beam and smoke or vapor to detect sound vibrations in free air ("Particulate Flow Detection Microphone based on a laser-photocell pair with a moving stream of smoke or vapor in the laser beam's path"). Sound pressure waves cause disturbances in the smoke that in ...
In an hour-long procedure, a veterinary surgeon implanted a microphone in the cat's ear canal, a small radio transmitter at the base of its skull, and a thin wire into its fur. [2] This would allow the cat to innocuously record and transmit sound from its surroundings.
The CIA ran a secret research program at the Dutch Radar Laboratory (NRP) in Noordwijk in the Netherlands from 1954 to approximately 1967 to create its own covert listening devices based on a dipole antenna with a detector diode and a small microphone amplifier. The devices were developed under the Easy Chair research contract [11] and were ...
Assistant: Alexa | Connectivity: Bluetooth, Wi-Fi | Spatial audio: Yes | Special features: 8-inch touchscreen Imagine a tablet with a beefy speaker grafted onto the back: That's the Echo Show 8 in ...
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DCSNet: The Federal Bureau of Investigation (FBI)'s point-and-click surveillance system that can perform instant wiretaps on any telecommunications device located in the United States. [29] Fairview: A mass surveillance program directed at foreign mobile phone users.
This page was last edited on 1 November 2019, at 22:27 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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