Here is a cellphone that harvests the ambient energy . What is the Ambient energy? We have a blanket of RF energy surrounded by so many cell towers Harvesting energy from the environment,is the way to go for future cellphones But the cell phones cant be created just by an antenna and signals from it , researchers at University of Washington have their own way to do that digital communication . “We’ve built what we believe is the first functioning cellphone that consumes almost zero power,” said co-author Shyam Gollakota Converting analog signals that to have corresponding data that a phone can understand consumes so much energy that it’s been impossible to design a phone that can rely on ambient power sources. They have developed a special way that takes advantage of tiny vibrations in a phone’s microphone or speaker that occur when a person is talking into a phone. To transmit speech, the phone uses vi...
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