While libraries still staff check out desks, many give patrons the option of swiping their books or videos under bar code scanners to avoid a wait in line.

Now some libraries are introducing a new path to check out. They are installing RFID (radio frequency identification) systems that recognize information on computer chips embedded in a book’s binding.

The chip readers, common in Europe, already are being used at University of Connecticut libraries. Among municipal public libraries, Cheshire’s is among the latest to be attracted to the chip, following Darien and Southbury.

Cheshire Director Ramona Harten described the chip as cutting edge technology that cuts check out time.

Books with chips merely need to be passed near a reading pad. With bar code readers, each book must be positioned carefully under the infrared scanner.

Eventually self-service kiosks would replace the check-out desk entirely, though library staff would still be available to help if needed.

Cheshire’s system would cost about $300,000, two-thirds of which has been requested in the capital budget. Harten has applied for a $50,000 state grant and plans to use $50,000 in donated money to pay for the remainder.

She said the automated system frees staff for more important work. The already busy library has become even busier as families seek less costly entertainment options closer to home.