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Near-field communication (NFC) is a set of communication protocols that enables communication between two electronic devices over a distance of 4 cm (1 + 1 ⁄ 2 in) or less. [1] NFC offers a low-speed connection through a simple setup that can be used for the bootstrapping of capable wireless connections. [2]
This is a list of interface bit rates, is a measure of information transfer rates, or digital bandwidth capacity, at which digital interfaces in a computer or network can communicate over various kinds of buses and channels. The distinction can be arbitrary between a computer bus, often closer in space, and larger telecommunications networks.
Notes: All speeds are theoretical maximums and will vary by a number of factors, including the use of external antennas, distance from the tower and the ground speed (e.g. communications on a train may be poorer than when standing still). Usually the bandwidth is shared between several terminals.
Bluetooth divides transmitted data into packets, and transmits each packet on one of 79 designated Bluetooth channels. Each channel has a bandwidth of 1 MHz. It usually performs 1600 hops per second, with adaptive frequency-hopping (AFH) enabled. [25] Bluetooth Low Energy uses 2 MHz spacing, which accommodates 40 channels. [26]
From January 2018, the four RFID frequencies are also available for data networks, with a power up to 500 mW and a bandwidth of 200 kHz. The center frequencies are: 865.7, 866.3, 866.9 and 867.5 MHz. Specific restrictions on usage apply, such as a low duty cycle, LBT (listen before transmit) and APC (adaptive power control).
Amazon alone sees $104 billion in capital expenditures this year, well above prior analyst forecasts of $80 billion to $85 billion. The stocks have tended to react negatively to these bold ...
On 27 January 2012, Nintendo President Satoru Iwata announced in a briefing that the controller of the Wii U home console will have an installable NFC function. By installing this functionality, it will become possible to create cards and figurines that can electronically read and write data via noncontact NFC and to expand the new play format ...
Michael Buckner/WWD via Getty. Kim Kardashian (left) and Kristen Noel Crawley at the Fourth Annual Fifteen Percent Pledge Gala on Feb. 1, 2025