The first fully automatic mobile phone system, called MTA, was developed by Ericsson and commercially released in Sweden in 1956.
This system had cells, but the phones could not move from one cell to the other without having to end the call.
In 1970, an engineer at AT&T's Bell Labs, an American company, invented a method to allow cell phones to move from one cell to another during a call; called a "call hand-off."
The first truly successful cellular network was the ARP, introduced in Finland in 1971. It is viewed as a 0G (zero G) network which had very good coverage and achieved great popularity.
All the phones used in the previously mentioned networks were large in size, not suitable for being held by hand. They were mostly applied in automobiles, with the main device installed in the trunk of the car, attached by wire to a handset near the driver seat.
The first practical hand-held cell phone was invented by Motorola, an American company, in 1973. Dr. Martin Cooper, an American born in Chicago, is the inventor listed on the US patent that was used to register that device.
Read more: http://wiki.answers.com/Q/In_what_country_was_the_first_cell_phone_invented#ixzz1T9F7ZVQB  |
