Extensions
A number of protocols have been developed that extend PTP. PTP/IP, developed by FotoNation and first implemented in a round of Wi-Fi digital cameras by Nikon, Canon, and Eastman Kodak, allows data transfer over any IP-based network.
Media Transfer Protocol, developed by Microsoft, allows for transfer over wireless or wired networks based in part on FotoNation's PTP/IP, but also allows users to transfer other media aside from pictures, as well as for tagging objects with extended metadata (such as title, artist and similar).
Read more about this topic: Picture Transfer Protocol
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