Tactile Engineering Cadence (IMAGE) Purdue University Caption Tactile Engineering Inc. manufactures the Cadence tactile tablet, which allows readers to access up to eight lines of electronic Braille cells. It can be used as an e-reader, graphic calculator and image viewer. The company completed a $1.5 million round of funding, which included a $250,000 investment from Purdue Ventures. Credit (Photo courtesy of Tactile Engineering) Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.