<P> Bluetooth is managed by the Bluetooth Special Interest Group (SIG), which has more than 30,000 member companies in the areas of telecommunication, computing, networking, and consumer electronics . The IEEE standardized Bluetooth as IEEE 802.15. 1, but no longer maintains the standard . The Bluetooth SIG oversees development of the specification, manages the qualification program, and protects the trademarks . A manufacturer must meet Bluetooth SIG standards to market it as a Bluetooth device . A network of patents apply to the technology, which are licensed to individual qualifying devices . </P> <P> The development of the "short - link" radio technology, later named Bluetooth, was initiated in 1989 by Nils Rydbeck, CTO at Ericsson Mobile in Lund, Sweden, and by Johan Ullman . The purpose was to develop wireless headsets, according to two inventions by Johan Ullman, SE 8902098 - 6, issued 1989 - 06 - 12 and SE 9202239, issued 1992 - 07 - 24 . Nils Rydbeck tasked Tord Wingren with specifying and Jaap Haartsen and Sven Mattisson with developing . Both were working for Ericsson in Lund . The specification is based on frequency - hopping spread spectrum technology . </P> <P> The name "Bluetooth" is an Anglicised version of the Scandinavian Blåtand / Blåtann (Old Norse blátǫnn), the epithet of the tenth - century king Harald Bluetooth who united dissonant Danish tribes into a single kingdom and, according to legend, also introduced Christianity . The idea of this name was proposed in 1997 by Jim Kardach of Intel who developed a system that would allow mobile phones to communicate with computers . At the time of this proposal he was reading Frans G. Bengtsson's historical novel The Long Ships about Vikings and King Harald Bluetooth . The implication is that Bluetooth does the same with communications protocols, uniting them into one universal standard . </P> <P> The Bluetooth logo is a bind rune merging the Younger Futhark runes (Hagall) (ᚼ) and (Bjarkan) (ᛒ), Harald's initials . </P>

Where does the term blue tooth come from
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