LeapFrog Enterprises Patent Grants

Print media receiving apparatus

Granted: July 6, 2004
Patent Number: D492680

Print media information system with a portable print media receiving unit assembly

Granted: June 15, 2004
Patent Number: 6750978
The present invention relates to a novel interactive information system which can be used to make a traditional print medium such as a magazine, “interactive”. When the traditional print medium is placed on a print media receiving unit in a predetermined position, a user can interact with the traditional print medium. Printed matter elements on the printed medium can be made “selectable” by the user.

Interactive print media apparatus

Granted: May 4, 2004
Patent Number: D489367

Interactive learning apparatus responsive to striking

Granted: April 6, 2004
Patent Number: 6716031
An interactive learning apparatus is disclosed. In one embodiments, the interactive learning apparatus comprises: (a) a housing; (b) an impact sensor unit in the housing; (c) a processor and memory unit operatively coupled to the impact sensor unit; (d) a display unit operatively coupled to the processor and memory unit; and (e) an audio output unit operatively coupled to the processor and memory unit, wherein the display unit is adapted to display an image in response to the user…

Learning toy

Granted: February 24, 2004
Patent Number: D487118

Print media receiving unit including platform and print media

Granted: December 23, 2003
Patent Number: 6668156
A print media receiving unit is disclosed. In one embodiment, the print media receiving unit comprises a platform that includes a surface adapted to receive a print medium comprising a spine. The spine may be disposed in a spine receiving portion in the platform. A location detection system capable of determining a location of a selected region of the print medium may be associated with the platform.

Electrographic position location apparatus and method

Granted: December 9, 2003
Patent Number: 6661405
An apparatus for use in an electrographic position sensing system comprises an antenna system and a signal strength detector. In one embodiment, the antenna system comprises two antennas. The detector measures the signal strength from each antenna. A microprocessor contains an algorithm to calculate the position of the detector near the antennas.

Toy having rotating element

Granted: November 18, 2003
Patent Number: 6648647
A toy is disclosed. In one embodiment, the toy includes a base. A rotating element is on the base and rotates about an axis. A child can cause the rotating element to rotate about the axis by pressing an actuator at the center of the rotating element. A set of image elements can be on the rotating element.

Interactive apparatus with templates

Granted: November 4, 2003
Patent Number: 6641401
An interactive apparatus is disclosed. In one embodiment, the interactive apparatus includes a base unit. The base unit can has a surface and an array of electrical elements under the surface. A removable template is placed on the base unit and is positioned over the surface. The removable template has a movable element that the user can move and a speaker in the apparatus can produce an audio output in response to the movement of the movable element.

Surface position location system and method

Granted: October 28, 2003
Patent Number: RE38286
An electrographic sensor unit and method for determining the position of a user selected position thereon. The electrographic sensor unit includes a layer of a conductive material having an electrical resistivity and a surface, at least three spaced apart contact points electrically interconnected with a layer of conductive material, a processor connected to the spaced apart contacts and disposed to selectively apply a signal to each of the contact points, and a probe assembly, that…

Sequence learning toy

Granted: August 19, 2003
Patent Number: 6607388
An educational toy for teaching a child a sequence of letters, numbers, colors or other sequences. The toy would be provided with a plurality of segmented body portions, each of the body portions associated with a single indicia. A switch is provided on each of the segmented body portions. When this switch is depressed, an audio output associated with the indicia would be produced. After the child has memorized a series of indicia to produce a learned sequence, a switch associated with a…

Interactive apparatus using print media

Granted: August 19, 2003
Patent Number: 6608618
A method for producing an output in response to an interaction with a print element on a sheet is disclosed. In one embodiment, the method includes placing a sheet comprising a print element on a surface of a base unit. A user can then mark on the sheet in the vicinity of the print element with a marking instrument. An audio output that corresponds to the print element is generated.

Sequence learning toy

Granted: June 25, 2002
Patent Number: 6409511
An educational toy for teaching a child a sequence of letters, numbers, colors or other sequences. The toy would be provided with a plurality of segmented body portions, each of the body portions associated with a single indicia. A switch is provided on each of the segmented body portions. When this switch is depressed, an audio output associated with the indicia would be produced. After the child has memorized a series of indicia to produce a learned sequence, a switch associated with a…