Sega Enterprises, Ltd.

Kabushiki Kaisha Sega Enterprises

Hirotsugu Tomizawa

Makoto Ohara

Shinichirou Sugiura

Akira Takasaka

Eiji Takuma

Yoshifumi Ishimura

There is provided a position detector including a member having a surface and a plurality of vertically and horizontally arranged antennas; a controller for sequentially driving the vertically arranged antennas in vertical positive and vertical negative directions, and for sequentially driving the horizontally arranged antennas in horizontal positive and horizontal negative directions so that the antennas sequentially radiate radio waves; a receiver for receiving the sequentially radiated radio waves on the surface of the member; and a detector for detecting the position of the receiver on the surface of the member based on the levels of the received radio waves. The detector detects the position of the receiver as an average position for a first position detected based on the levels of the radio waves which are sequentially radiated in the vertical positive and horizontal positive directions, and a second position detected based on the levels of the radio waves which are sequentially radiated in the vertical negative and horizontal negative directions. Therefore, since the receiver position detected by the detector does not vary, no delay time adjustment circuit is required, and the position of the receiver can be accurately detected.

Position detector

An information display system having a housing with a location for receiving a document such as a book is provided. A location detection circuit is mounted on the housing adjacent the document and can determine any subjective selection of a location on the document. The document can have a plurality of indicia. When such indicia is selected, a control circuit can retrieve the information from a read only memory and appropriately display the information in an audible or visual manner.

Information display system for electronically reading a book

There is disclosed an action toy system comprising a base, an air blower, and unit toys connected with holes formed in the surface of the base. The blower blows air into the unit toys through the base and the holes to cause the toys to perform action.

Growing community of inventors

Tokyo, Japan

Hirotsugu Tomizawa