View Single Post
Old 10-13-08, 11:52 AM   #6
Chrisedge
DVD Talk Ultimate Edition
 
Chrisedge's Avatar
 
Join Date: Jun 1999
Location: Part of the Left-Wing Conspiracy
Posts: 4,127
Quote:
Originally Posted by Wikipedia
Martin Cooper, a Motorola researcher and executive is widely considered to be the inventor of the first practical mobile phone for handheld use in a non-vehicle setting. Using a modern, if somewhat heavy portable handset, Cooper made the first call on a handheld mobile phone on April 3, 1973.[50]

The first commercial citywide cellular network was launched in Japan by NTT in 1979. Fully automatic cellular networks were first introduced in the early to mid 1980s (the 1G generation). The Nordic Mobile Telephone (NMT) system went online in Denmark, Finland, Norway and Sweden in 1981.[51] NMT was the first mobile phone system that enabled international use of the phone, or "roaming" on other networks in other countries. This was followed by a boom in mobile phone usage, particularly in Northern Europe.[citation needed]

In 1983, Motorola DynaTAC was the first approved mobile phone by FCC in the United States. In 1984, Bell Labs developed modern commercial cellular technology (based, to a large extent, on the Gladden, Parelman Patent), which employed multiple, centrally-controlled base stations (cell sites), each providing service to a small area (a cell). The cell sites would be set up such that cells partially overlapped. In a cellular system, a signal between a base station (cell site) and a terminal (phone) only need be strong enough to reach between the two, so the same channel can be used simultaneously for separate conversations in different cells.
Bought the Pioneer Branded version of the Motorola Flip Phone in 1992 from LA Cellular/The Good Guys (where I worked)
__________________
DVDTalk Member #1758 since: 06-09-99
I Hate Blockbuster chrisedge.com


My Countdown Counting down to: No Line On The Horizon
53 days 1 hours 50 minutes

Last edited by Chrisedge; 10-13-08 at 11:55 AM.
  Reply With Quote