Casio Computer Co., Ltd.

Takaharu Aoyama

Takashi Kojo

Mitsuru Okano

Kazuhiko Arikawa

Jun Oshima

Kayoko Hashimoto

Emiko Morooka

Teiji Sindo

An electronic calculating apparatus for use with an overhead projector and a projection screen includes an electronic calculator and a display device. The electronic calculator comprises a data input unit and a data sending unit. The electronic calculator performs an operation corresponding to data inputted from the data input unit, and displays a result of the performed operation. The display device comprises a liquid crystal display unit of a transparent type and a data receiving unit for receiving data sent from the sending unit of the electronic calculator. The display device is placed on the top of the overhead projector, and, upon receipt of the data sent from the data sending unit of the electronic calculator, the display device performs an operation that is substantially the same as the operation performed by the electronic calculator, and displays the result of the performed operation on the liquid crystal display unit of a transparent type. The result of the operation displayed on the liquid crystal display unit of a transparent type is enlarged and projected through the overhead projector onto the projection screen.

Electronic calculating apparatus

A color data input apparatus is provided with plural key sheets and a key sheet selecting keys. Color data, which are stored in a memory, are assigned to each of the plural key sheets. Further, input keys are provided for selecting one of color data assigned to each of the plural key sheets. To designate a color, a key sheet, to which a pertinent color data is assigned, is selected by the key sheet selecting key, and then an input key corresponding to the pertinent color data is operated, whereby the pertinent color data is selected from among the color data of the selected key sheet and a color of the selected color data is displayed on a display unit. An advice data on a combination of colors are stored in an advice data memory is provided. When two colors are selected in the above way, an advice on a combination of the two read out colors is also displayed and is made reference for designing dresses.

Color data input apparatus

Growing community of inventors

Koganei, Japan

Takaharu Aoyama