Patents Assigned to Leapfrog RBT, L.L.C.
  • Patent number: 5511980
    Abstract: An interactive learning device in the form of an open book for toddlers and preschoolers, having a plurality of embodiments. In one embodiment the book has three-dimensional letters of the alphabet received by a card that spells a word. The card is adapted to be placed in the book and a speech processor circuit recites the word written therein and sounds the phonic associated with each phoneme in the word when the child places the correct alphabet letters in the card, and repeats the entire word. In a second embodiment the book acts as a simple translator. In a third embodiment the book is in the form of a talking math calculator that teaches elementary mathematical operations. In a fourth embodiment the child may learn the sounds and names associated with various animals, and may also translate the animal names. A plurality of shapes and colors may also be represented by cards and indica bearing units.
    Type: Grant
    Filed: February 23, 1994
    Date of Patent: April 30, 1996
    Assignee: Leapfrog RBT, L.L.C.
    Inventor: Michael C. Wood