Who invented mobile phone

Many people attribute the invention of the smartphone to Europeans, but in fact, the first digital cell phone was invented by an African American man named Jesse Eugene Russell. While Russell was working as an engineer at AT&T-Bell Laboratories in 1988, he created the concept for the wireless digital phone and communication. At the time, mobile devices were mainly used in vehicles, so Russell designed a cell phone that could transmit signals between handsets and cell phone towers. Doing so would make mobile phones more handy and also more affordable. In a statement, Russell once said, "Most of the time people are not in their cars. I said, 'Well that seems like an easy problem to solve, right? Why don't we just take the phones out of the car and put them on the people.'" Russell is responsible for other innovations in the field of wireless communications systems. He also created a company based in New Jersey called incNETWORKS Inc, a broadband wireless communication system that focuses on 4G broadband wireless communications technologies, networks and services.

Science Museum Group Collection Image source for A Star Trek 'communicator' toy against a white background Star Trek communicator toy, 1994–1996 In the 1970s, television audiences all over the world were familiar with the notion of a hand-held two-way communication device, as seen in the hands of Captain Kirk and Mr Spock in the Star Trek series that began in the late 1960s. The reality was far from this ideal. Two-way radiophones had been helping police and military personnel to stay in contact in fast-changing situations since before the Second World War. But these small, private networks required bulky equipment and were inaccessible to the public. In the 1970s, researchers at Bell Labs in the USA began to experiment with the concept of a cellular phone network. The idea was to cover the country with a network of hexagonal cells, each of which would contain a base station. These base stations would send and receive messages from mobile phones over radio frequencies. Any two adjacent cells would operate at different frequencies, so there was no danger of interference. The stations would connect the radio signals with the main telecommunications network, and the phones would seamlessly switch frequencies as they moved between one cell and another. By the end of the 1970s the Bell Labs Advance Mobile Phone System (AMPS) was up and running on a small scale. Meanwhile, Martin Cooper, an engineer at the Motorola company in the US, was developing something that came close to t...

Bell's Biography Alexander Graham Bell was born on March 3, 1847, in Edinburgh, Scotland. He was immersed in the study of sound from the beginning. His father, uncle, and grandfather were authorities on elocution and speech therapy for the deaf. It was understood that Bell would follow in the family footsteps after finishing college. But after Bell's two other brothers died of tuberculosis, Bell and his parents decided to immigrate to Canada in 1870. After a brief period of living in Ontario, the Bells moved to Boston where they established speech-therapy practices specializing in teaching deaf children to speak. One of Alexander Graham Bell's pupils was a young Helen Keller, who when they met was not only blind and deaf but also unable to speak. Bell's extensive knowledge of the nature of sound and his understanding of music enabled him to consider the possibility of transmitting multiple messages over the same wire at the same time. Although the idea of a "multiple telegraph" had been in existence for some time, it was purely conjecture as no one had been able to fabricate one—until Bell. His "harmonic telegraph" was based on the principle that several notes could be sent simultaneously along the same wire if the notes or signals differed in pitch. Talk With Electricity By October 1874, Bell's research had progressed to the extent that he could inform his future father-in-law, Boston attorney Gardiner Greene Hubbard, about the possibility of a multiple telegraph. Hubbard...

Do you remember a time when you didn’t have a cell phone? Although we are all accustomed to having smartphones in our life, there was a time, not so long ago, where we just didn’t have such convenient lines of communication. In this guide, we go right back to the very beginning to see how we got to the modern day smartphones such as the iPhones and the Samsung Galaxies. Come with us as we explore the development of the mobile phone and travel through the history of this life changing device! 1973 – The Very First Cell Phone Motorola developed the first portable cell phone in 1973. The hand-held device was shaped like a brick and weighed around 2.4 pounds. It was called the DynaTAC 8000X. The device only operated for a maximum of 30 minutes talk time, and that was with a huge 10 hours of charging! The very first call that was made was by Martin Cooper, who was an executive at Motorola. He called Dr. Joel Engel, an engineer at their rival business, Bell Labs. The very first mobile device wasn’t cheap. The cost of the DynaTAC phone was $3,995, which is equivalent to $10,000 in today’s money. In fact, if you wanted to buy the DynaTAC 8000X today, you will need a lot more than $10k!! Check out this eBay listing!! £44,888 will get you a mint condition Motorola DynaTAC 8000X. 1983 – Motorola DynaTAC It took Motorola another 10 years before they brought out the commercially available DynaTAC 8000X. The DynaTAC, which was still large and expensive ($4,000), was still clunkyand heav...

Inventors and Inventions Mobile telephones had been introduced by the In 1947 AT&T Motorola did not want AT&T to have a monopoly on cell phones and feared the end of its mobile business. Cooper was placed in charge of the urgent project to develop a cell phone. He thought that the cell phone should not be chained to the car but should be portable. The result, the On April 3, 1973, Cooper introduced the DynaTAC phone at a press conference in In 1983, after years of further development, Motorola introduced the first portable cell phone for consumers, the DynaTAC 8000x. Despite its price of $3,995, the phone was a success. That same year, Cooper left Motorola and founded Cellular Business Systems, Inc. (CBSI), which became the leading company in billing cellular phone services. In 1986 he and his partners sold CBSI to Cincinnati Bell for $23 million, and he and his wife, Arlene Harris, founded Dyna, LLC. Dyna served as a central organization from which they launched other companies, such as ArrayComm (1996), which developed

When wireless is perfectly applied, the whole earth will be converted into a huge brain, which in fact it is, all things being particles of a real and rhythmic whole. We shall be able to communicate with one another instantly, irrespective of distance. Not only this, but through television and telephony we shall see and hear one another as perfectly as though we were face to face, despite intervening distances of thousands of miles; and the instruments through which we shall be able to do his will be amazingly simple compared with our present telephone. A man will be able to carry one in his vest pocket. Since then, the definition of the smartphone has essentially become arbitrary. For example, is a phone still smart if it doesn’t have a touchscreen? At one time, the Sidekick, a popular phone from carrier T-Mobile, was considered cutting edge. It had a swiveling full-qwerty keyboard that allowed for rapid-fire text messaging, LCD screen, and stereo speakers. In modern times, few people would find a phone remotely acceptable that cannot run third-party apps. The lack of consensus is muddied even further by the concept of a “feature phone,” which shares some of the smartphone's abilities. But is it smart enough? Who Invented Smartphones? The first device that technically qualifies as a smartphone was simply a highly-sophisticated (for its time) brick phone. You know one of those bulky, but fairly exclusive status-symbol toys flashed in 1980s movies like "Wall Street?" The IB...