microphonograph การใช้

• After his retirement, he developed the microphonograph technology used in the Fisher-Price " Talk to Me Books . " The Talk to Me Books won a Toy of the Year award.
• At his own Education Engineering Associates consulting company in Palo Alto, he developed a microphonograph that allows children to point a hand-held device at a picture or word in a book and hear it tell them what it was.