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  2. Bluetooth - Wikipedia

    en.wikipedia.org/wiki/Bluetooth

    A personal computer that does not have embedded Bluetooth can use a Bluetooth adapter that enables the PC to communicate with Bluetooth devices. While some desktop computers and most recent laptops come with a built-in Bluetooth radio, others require an external adapter, typically in the form of a small USB " dongle ".

  3. Wireless Philosophy - Wikipedia

    en.wikipedia.org/wiki/Wireless_Philosophy

    Wireless Philosophy or Wi-Phi is an open-access philosophy website that aims to "introduce people to the practice of philosophy by making videos that are freely ...

  4. Channel sounding - Wikipedia

    en.wikipedia.org/wiki/Channel_sounding

    Channel sounding is a technique that evaluates a radio environment for wireless communication, especially MIMO systems. Because of the effect of terrain and obstacles, wireless signals propagate in multiple paths (the multipath effect).

  5. Sony Xperia - Wikipedia

    en.wikipedia.org/wiki/Sony_Xperia

    Windows-powered Xperia X1, the very first Xperia device. The Xperia X1 was the first phone to be released in the Xperia range. [3] Released in 2008, it featured a high resolution display (~311 ppi pixel density) and it was intended to fill the widening gap of smartphones as other competitors were producing high-end smartphone devices such as HTC and Apple.

  6. Google Fi Wireless - Wikipedia

    en.wikipedia.org/wiki/Google_Fi_Wireless

    Google Fi Wireless (pronounced / f aɪ /), formerly Project Fi and Google Fi, is an American MVNO telecommunications service by Google that provides telephone calls, SMS, and mobile broadband using cellular networks and Wi-Fi. Google Fi uses the T-Mobile network. Google Fi is a service for US residents only, as of late 2023. [1]

  7. WiMAX - Wikipedia

    en.wikipedia.org/wiki/WiMAX

    WiMAX Forum logo WiMAX base station equipment with a sector antenna and wireless modem on top. Worldwide Interoperability for Microwave Access (WiMAX) is a family of wireless broadband communication standards based on the IEEE 802.16 set of standards, which provide physical layer (PHY) and media access control (MAC) options.

  8. Choi's theorem on completely positive maps - Wikipedia

    en.wikipedia.org/wiki/Choi's_theorem_on...

    This mainly involves chasing the different ways of looking at C nm×nm: () ().Let the eigenvector decomposition of C Φ be = =, where the vectors lie in C nm.By assumption, each eigenvalue is non-negative so we can absorb the eigenvalues in the eigenvectors and redefine so that

  9. Astro's Playroom - Wikipedia

    en.wikipedia.org/wiki/Astro's_Playroom

    Astro's Playroom is a 2020 platform game developed by Japan Studio and published by Sony Interactive Entertainment for the PlayStation 5. [1] [2] A sequel to Astro Bot Rescue Mission, the game comes pre-installed on every console, serving additionally as a free tech demo for the DualSense controller.