Mechanics of WiFi Detectors A wireless signal can travel only so far. Specifically, a typical signal can extend as far as 1,000 feet (304.8 meters) in an unobstructed, open area and about 300 feet (91.44 meters) in a closed area that has obstructions [source: Graves]. Because the signals themselves are invisible and the access points […]
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How Telephone Amplifiers Work If you’ve set the volume on your phone as high as it’ll go and voices still sound faint, you may want to consider a device for hearing-impaired telephones called a phone amplifier. Several options are available, including units that attach to a phone line, portable amplifier units and dedicated amplifier telephones,
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RC Toy Transmitter RC toys typically have a small handheld device that includes some type of controls and the radio transmitter. The transmitter sends a signal over a frequency to the receiver in the toy. The transmitter has a power source, usually a 9-volt battery, that provides the power for the controls and transmission of
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Cell-phone Virus Basics A cell-phone virus is basically the same thing as a computer virus — an unwanted executable file that “infects” a device and then copies itself to other devices. But whereas a computer virus or worm spreads through e-mail attachments and Internet downloads, a cell-phone virus or worm spreads via Internet downloads, MMS
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Finding and Fixing Phone Line Noise If you’re still desperately reading this article, then your landline problems probably aren’t caused by weather. A simple way to determine the source of the noise is to remove each potential suspect one by one until the noise goes away. For instance, disconnect all the other phones to see
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How Bone Conduction Works To understand how bone conduction works, you first have to understand how we hear sounds, which we do in two ways: Sound travels in waves through the air. Normally, sound waves travel through several structures in the ear, before being translated and transmitted through our nervous systems to our brains. First,
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LG Display announced today that it has developed the world’s first LCD panel for monitors featuring Intel Wireless Display (WiDi) technology in collaboration with Intel Corporation. This new 23.8-inch LCD panel is the latest improvement that allows users to stream wirelessly their laptop and desktop content to their TVs and monitors in a more seamless manner.
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Gizmondo Design At its core, the Gizmondo is built for gaming. It looks a lot like a controller for a console game system, except for the view screen in the middle. The Gizmondo is roughly the same size as a controller, with four gaming buttons on the right, an eight-way game pad on the left,
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Packet Switching and VoIP VoIP uses packet switching rather than circuit switching. Instead of leaving an entire circuit open during the whole conversation, it breaks the conversation into small packets of data. It then transmits that data over the Internet. Instead of monopolizing a circuit, packet switching sends and receives data as needed. Click “Play”
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Avatar Machine Hardware Apart from the costume elements of the invention, which were included to give the Avatar Machine the appearance of a video game character, the device includes: A harness that straps to the user’s torso Three two-meter long aluminum rods that attach to the user’s harness at the lower back and shoulders, forming
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