Sony Computer Entertainment Inc.

Hideaki Io

Yasuyuki Yamamoto

Makoto Tanaka

Yuichi Inomata

Shigekazu Hayashi

Shinichi Fukushima

An entertainment apparatus comprising a peripheral device and a controller for controlling the peripheral device. The peripheral device and the controller are connected each other by an address bus and a data bus. The peripheral device which receives a DMA acknowledge signal from the controller carries out 32-bit DMA transfer using lower 16 bits of the address bus and the data bus, during assertion of the DMA acknowledge signal.

Entertainment apparatus

In a game system such as a television game system, a television game machine main unit includes a protocol controller and each game operation device connected to the television game machine unit via a serial port also has a protocol controller. The television game machine main unit when connected to a game operation device which has a unique identifier, combines a communication protocol that transmits and receives data for each character with a communication protocol which transmits or receives data for two or more characters in a row and switches the communication protocol which corresponds to that game operation device based on the identifier thereof to minimize the amount of information required between the television game machine main unit and the game operation device.

Game device, game machine operation device and game system which employ a half-duplex serial communication system and game device two-way communication method

Growing community of inventors

Yokohama, Japan

Hideaki Io