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ManualsBrandsShark ManualsDomestic Appliances7.2 VDC

7. Appendix

7.1 What is Bluetooth

Bluetooth

is the codename for a technology specification for low-cost, short-range radio

links between mobile PCs, mobile phones, other portable devices and instruments.

Bluetooth

is a simple two-way wireless (radio) solution that allows different devices to

talk to each other without using cables or infrared. There are primarily two classes of

Bluetooth

. Class 1 is designed to transmit / receive approximately 100 meters and Class

2 is a transceiver of approximately 10 meters. It operates with low power drain.

The Bluetooth

wireless communication standard was developed by a group (Bluetooth

Special Interest Group [SIG]) of electronics manufacturers that allows any sort of

electronic equipment to make a connection, without wires, cables or (in some cases) any

direct action from a user. Bluetooth

wireless technology is a universal standard that

works at two levels:

• It provides agreement at the physical level -- Bluetooth

wireless technology is a

radio-frequency standard, and as such all Bluetooth

wireless enabled devices

operate in the same frequency band the same way.

• It also provides agreement at the data level (the next level up), where products

have to agree on when bits are sent, how many will be sent at a time and how the

parties in a communication link can be sure that the message received is the same

as the message sent.

Bluetooth

wireless technology is lower in cost and power consumption than alternative

wireless standards used to replaced cables and wires connecting portable and/or fixed

electronic devices. It will also allow a lower cost replacement for cables and connectors,

particularly when accounting for installation and maintenance. Connections are

established dynamically and automatically only when Bluetooth

wireless devices enter

and leave the Bluetooth

SIG qualified radio’s transceiver range.

7.2 Why is it called Bluetooth

The “Bluetooth

” name itself comes from the 10th century Danish Viking King, Harald

Blåtand (Bluetooth

in English) II. He managed to unite Denmark and part of Norway

into a single kingdom, hence the inspiration of the name, by uniting products through

Bluetooth

. It has also been reported that Harald apparently enjoyed eating blueberries, to

such an extent that his teeth were stained blue. He left a large monument, the Jelling rune

stone, in memory of his parents. He was killed in 986 during a battle with his son, Svend

Forkbeard. Choosing this name for the standard indicates how important companies from

the Baltic region (nations including Denmark, Sweden, Norway and Finland) are to the

communications industry, even if it says little about the way the technology works.