Hidekazu Tanigawa

Graphical-interactive-screen display apparatus and peripheral units

Menu display device

Apparatus and method for page-retrieval using electronic book display

Interactive data communication system with unidirectionally transmitted broadcast wave

Interactive data transmitting apparatus, data receiving apparatus, data receiving method, recording medium for recording receiving program thereof, and communication system using a broadcast wave

Display control with movable or updatable auxiliary information

Data conversion apparatus for reading a document for a display screen and generating a display image for another display screen which has a different aspect ratio from the former display screen

Data processing apparatus for facilitating data selection and data processing in at television environment with reusable menu structures

Data communication system, data transmitting apparatus, and data receiving apparatus

Program-receiving method, program-receiving equipment and information-processing equipment