At which company was Jaap C. Haartsen instrumental in developing the Bluetooth radio specification?
Answer
Ericsson
The text specifies that Jaap C. Haartsen, in his capacity as an electrical engineer, was instrumental in the development of the critical Bluetooth radio specification while he was employed at Ericsson. Ericsson served as the corporate base for this foundational work in short-range digital communication. This specific institutional context is important because it highlights that a major telecommunications firm played the leading role in establishing the protocols that define how many modern personal audio devices communicate wirelessly without relying on external network infrastructure.

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