Who Invented Mobile Phone?

  • editor@aapkatimes.com
Martin Cooper with phones
Martin Cooper with phones

Motorola was the first company to produce a handheld mobile phone.  In 1973, John F. Mitchell and Dr Martin Cooper of Motorola demonstrated the first hand-held mobile phone using a handset weighing around 2.2 pounds (1 kg).
On April 3, 1973 Martin Cooper, a Motorola Employee (engineer and executive) made the first mobile telephone call from handheld subscriber equipment in front of reporters, making a call to Dr. Joel S. Engel of Bell Labs. The prototype handheld phone used by Dr. Martin Cooper weighed almost 2.5 pounds and measured 9 inches long, 5 inches deep and 1.75 inches wide. The prototype offered a talk time of just 30 minutes and took 10 hours to re-charge.
Dr Martin Cooper is considered as the “father of the cell phone” and is also known  as the first person in history to make a handheld cellular phone call in public.
The world’s first commercial automated cellular network was launched in Japan by NTT in 1979, initially in the metropolitan area of Tokyo.  In 1981, this was followed by the simultaneous launch of the Nordic Mobile Telephone (NMT) system in Finland, Denmark, Sweden and Norway . Several countries then followed in the early to mid-1980s including the Mexico , Canada and UK.
On 6 March 1983, the DynaTAc mobile phone launched on the first US 1G network by Ameritech. It cost $100m to develop, and took over a decade to reach the market. The phone had a talk time of just half an hour and took ten hours to charge. Consumer demand was strong despite the weight, low talk time,battery life, and waiting lists were in the thousands.
In 1991, the second generation (2G) cellular technology was launched in Finland by Radiolinja on the GSM standard, which sparked competition in the sector as the new operators challenged the incumbent 1G network operators.
In 2001, the third generation (3G) was launched in Japan by NTT DoCoMo on the WCDMA standard. This was followed by 3.5G, 3G+ or turbo 3G enhancements based on the high-speed packet access (HSPA) family, allowing UMTS networks to have higher data transfer speeds and capacity.

Now  the industry began looking to data-optimized 4th-generation technologies, with the promise of speed improvements up to 10-fold over existing 3G technologies. The first two commercially available technologies billed as 4G were the WiMAX standard offered by Sprint in the U.S. and the LTE standard, first offered by TeliaSonera in Scandinavia .