, however, they are likely to be sued. The person who has his own business and lets his learner driver insurance use a company will save the most in insurance premiums the reason of rates do not increase because the learner driver is owner of a company .
SAN FRANCISCO， March 18 (Xinhua) -- Engineers at University of Washington (UW) are working on a new technique enabling "smart" posters and clothing to communicate directly with your car's radio or your smartphone.
If it works， a poster for a concert could send your car or smartphone a message or a link that allows you to tune to a radio station and listen to the live music or get tickets or directions to the venue; or if you go for a run， your shirt can sense your perspiration and send data on your vital signs to your phone.
In addition， bus stop billboards could send digital content about local attractions， a street sign could broadcast the name of an intersection or notice that it is safe to cross a street.
"What we want to do is enable smart cities and fabrics where everyday objects in outdoor environments -- whether it's posters or street signs or even the shirt you're wearing -- can 'talk' to you by sending information to your phone or car，" lead faculty and UW assistant professor of computer science and engineering Shyam Gollakota was quoted as saying in a news release from the school in Washington state on the U.S. West Coast.
"The challenge is that radio technologies like WiFi， Bluetooth and conventional FM radios would last less than half a day with a coin cell battery when transmitting，" said UW electrical engineering doctoral student Vikram Iyer and co-author of a paper presented at a technology conference this month. "So we developed a new way of communication where we send information by reflecting ambient FM radio signals that are already in the air， which consumes close to zero power."
The UW team applied a technique called "backscattering" to outdoor FM radio signals， by reflecting and encoding audio and data in these signals that are ubiquitous in urban environments; and demonstrated that a "singing poster" placed at a bus stop could transmit a snippet of music， as well as an advertisement， to a smartphone at a distance of 12 feet， or about 3.7 meters， and to a car over 60 feet， or 18 meters， away.
Such connectivity can also enable smart fabric applications such as clothing integrated with sensors to monitor a runner's gait and .