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18 paź 2020 · As the "Ultra Wideband" name suggests, UWB does away with narrow ranges and instead transmits data across a far larger frequency band. While a typical Wi-FI channel width may be 20MHz, 40MHz,...
28 gru 2021 · Using Heisenberg's uncertainty principle we can roughly determine the width Δt of the pulse, given a certain bandwidth Δf*: ΔfΔt ≥ 1/4π. From this simple formula we can see that if we want a narrow pulse, which is necessary for accurate timing, we need to use a large bandwidth.
13 wrz 2023 · The U1 chip then multiplies this travel time by the speed of light to determine the inch-level distance to nearby phones or tags. iPhones equipped with the UWB chip use this distance data to create magical user experiences.
It enables distance and location to be calculated indoors or outdoors with unprecedented accuracy – within a few centimeters – by measuring the time it takes radio signals to travel between devices.
AirTag is embedded with the Apple-designed U1 chip using Ultra-Wideband technology, facilitating accurate location finding for iPhone 11 and iPhone 12 users. This innovative technology can more accurately determine the distance and direction of a lost AirTag when it is in range.
23 wrz 2022 · The distance between two devices that support Ultra Wideband can be measured precisely by calculating the time that it takes for a radio wave to pass between the two devices,...
Ultra Wideband information. Ultra Wideband is available on all iPhone 11, iPhone 12, iPhone 13, iPhone 14, and iPhone 15 models, and availability varies by region. Ultra Wideband must be turned off when onboard aircraft, ships, and other prohibited regions by turning on airplane mode.
