The first automatic analog cellular systems ever deployed were NTT's system first used in 1979 for car phones in Tokyo (and later the rest of the country of Japan), and the cellular systems released by Comvik in Sweden in September, [41] [42] NMT in the other Nordic countries in October of 1981.

The first cell phone was created by Martin Cooper and his team at Motorola. The prototype, known as the Motorola DynaTAC 8000X , was the first handheld cellular phone. Cooper made the first publicized handheld cellular phone call on a prototype DynaTAC model on April 3, 1973.

2023年4月4日 · On April 3, 1973, Martin Cooper stood on a sidewalk on Sixth Avenue in Manhattan with a device the size of a brick and made the first public call from a cell phone to one of the men he’d...

2020年8月4日 · On April 3, 1973, Motorola engineer Martin Cooper made the first-ever cell phone call on the DynaTAC 8000X. The prototype he used weighed 2.4 lb (1.1 kg) and measured 9.1 x 5.1 x 1.8 in (23 x 13 x 4.5 cm).

2016年4月13日 · See the very first cell phone ever made, and compare it with the mind-boggling flexible smartphone that just might be the future of mobile.

With encouragement from his boss, Motorola’s chief of portable communication products, John Mitchell, Cooper, and the engineers at Motorola produced the working prototype for the first cell...

2022年1月20日 · From Germany's train operators testing wireless communication in the 1920s, the DynaTAC 8000X prototype, flip, and digital phones to the present-day devices, the first cell phone went through a lot of transformations.

It was April 3, 1973, and Cooper had just placed the world’s first cellphone call. Cooper, who worked for Motorola, had just stepped out of the Hilton Midtown where he would soon officially...

2024年12月23日 · Martin Cooper, American engineer who led the team that in 1972–73 built the first mobile cell phone, the DynaTAC (Dynamic Adaptive Total Area Coverage), and made the first cell phone call, on April 3, 1973. He is widely regarded as the father of the cellular phone.

2024年2月27日 · Cooper led a team that designed the first practical cell phone. It was called the Motorola DynaTAC, and it still wasn't a tiny device -- it was 9 inches (22.9 centimeters) long and weighed 2.5 pounds (1.1 kilograms).