Nec Corporation

Nippon Steel Corporation

Capcom Co., Ltd.

Kuniharu Itoh

Yuzuru Sasaki

Akio Sakai

Noboru Shiina

A wireless communication apparatus for transmitting signals between a plurality of controllers and a master unit in a wireless fashion and a game machine using the wireless communication apparatus are disclosed, wherein different delay times are set for the respective controllers, each of the controllers comprises a first receiver for receiving a reference time signal from the master unit, an input device for inputting an operating signal by a user and a first transmitter for transmitting the operating signal to the master unit at the delay time set for the controller after receiving the reference time signal and the master unit comprises a reference time signal generator for repeatedly generating the reference time signal, a second transmitter for transmitting the reference time signal to each controller, a second receiver for receiving the operating signal transmitted from each of the controllers and a discriminator for taking out output signals from the signals received by the second receiver, respectively, at every timings corresponding to the delay times set for the controllers, respectively.

Wireless communication apparatus and game machine using the same

A circuit for detecting a code violation in an alternate mark inversion signal comprises a first detecting circuit receiving the alternate mark inversion signal for generating a first detection signal at continuous occurrence of two first polarity signals without an intervening signal of a second polarity, the first and second polarity signals being indicative of the same binary logical level, and a second detecting circuit receiving the alternate mark inversion signal for generating a second detection signal at continuous occurrence of two second polarity signals without interleaving the first polarity signal. The first detection signal is inputted to a first enable signal generating circuit for generating a first enable signal having a predetermined active period, and the second detection signal is inputted to a second enable signal generating circuit for generating a second enable signal having a predetermined active period. A first violation detection circuit receives the second detection signal and the first enable signal and generates a first code violation detection signal when the second detection signal is generated during the active period of the first enable signal. A second violation detection circuit receives the first detection signal and the second enable signal and generates a second code violation detection signal when the first detection signal is generated during the active period of the second enable signal.

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Tokyo, Japan

Kuniharu Itoh