JPH0564940U - Expansion device for TV game machine - Google Patents

Abstract

(57) [Abstract] [Purpose] In an expansion device for a TV game machine, it is possible to connect a plurality of expansion devices to one input / output terminal. A discriminating circuit 40 for discriminating a signal from the TV game machine 10 and an I / O controller 5 for controlling the destination of the signal from the TV game machine 10 by the signal from the discriminating circuit 40.
0 and an external terminal 90 capable of connecting the memory controller 60 for controlling signals to the built-in memory 70 and the input / output device 80
The signal line from the TV game machine 10 is switched to the input / output device 80 or the memory 70.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an expansion device for a TV game machine.

[0002]

[Prior Art]

 Conventional TV game machines are designed so that one input / output terminal is connected to one expansion device.

[0003]

[Problems to be solved by the device]

 Conventionally, it was not possible to connect and control multiple expansion units to one input / output terminal. Therefore, the present invention makes it possible to connect a plurality of expansion devices to one input / output terminal.

[0004]

[Means for Solving the Problems]

 Therefore, in order to achieve the above object, the present invention provides an expansion device for a TV game machine having an input / output terminal for connecting an input / output device, and a function expansion part for connecting the input / output terminal and expanding a function. An external terminal for exchanging signals equivalent to the input / output terminal for connecting the input / output device and a control target from an input signal line of the input / output terminal is a function expansion unit or an input / output device. And a switching circuit for switching the connection of the signal line between the input / output terminal and the function expansion section according to a determination signal generated by the determination circuit. Is.

Further, the input / output device is incorporated in an expansion device.

[0006]

【Example】

 Hereinafter, an embodiment of an expansion device for a TV game machine according to the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of an expansion device for a TV game machine of the present invention, and FIG. 2 is a block diagram showing another embodiment of the present invention.

In FIG. 1, reference numeral 10 denotes a TV game machine body having an input / output terminal 20. Reference numeral 30 denotes an external storage device (expansion device), which includes a discrimination circuit 40 for discriminating signals from the TV game machine 10, an I / O controller (switching circuit) 50 for switching connection of signal lines, and a TV game machine. It is composed of a memory (function expansion section) 70 for storing information, a memory controller 60 for controlling information to the memory 70, and an external terminal 90 capable of connecting the input / output device 80.

Next, a specific operation will be described. When the external storage device 30 according to the present invention is not used, the input / output device 80 is connected to the input / output terminal 20 of the TV game machine 10 to perform a normal input / output operation. The external storage device 30 according to the present invention is connected to the input / output terminal 20 of the TV game machine 10, and the input / output device 80 is connected to the external terminal 90 of the external storage device 30.

The determination circuit 40 determines whether the signal from the TV game machine 10 is a signal to the input / output device 80 or a signal to the memory 70. When the determination circuit 40 determines that the signal is to the memory 70, the signal line is switched to the memory 70 side by the I / O controller 50, and the memory controller 60 can be accessed to read the information to the memory 70. I can write.

On the other hand, when the discrimination circuit 40 discriminates that the signal is to the input / output device 80, the I / O controller 50 switches the signal line to the input / output device 80 side to access the input / output device 80. It will be possible.

FIG. 2 shows a second embodiment of the present invention. This is one in which the input / output device 80 is incorporated in the external storage device 30 in FIG.

[0013]

[Effect of the device]

 According to the present invention, by having the above-described configuration, it is possible to connect a plurality of expansion devices to one input / output terminal, so that it is possible to connect more expansion devices than the number of input / output terminals.

Further, by adopting this method, it becomes possible to operate another type of expansion device while connecting a conventional expansion device, and therefore compatibility with conventional devices can be maintained.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an expansion device for a TV game machine according to the present invention.

FIG. 2 is a block diagram showing another embodiment of the present invention.

[Explanation of symbols]

 10,110 TV game machine 20,120 Input / output terminal 30,130 Expansion device (external storage device) 40,140 Discrimination circuit 50,150 Switching circuit (I / O controller) 60,160 Memory controller 70,170 Function expansion part ( Memory) 80,180 Input / output device 90 External terminal

Claims (2)

[Scope of utility model registration request] 1. An expansion device of a TV game machine having an input / output terminal for connecting an input / output device, wherein the input / output device is connected to a function expansion unit for connecting the input / output terminal to expand a function. Therefore, an external terminal that exchanges a signal equivalent to that of the input / output terminal, and a determination circuit that determines from the input signal line of the input / output terminal whether the control target is the function expansion unit or the input / output device, An expansion device for a TV game machine, comprising: a switching circuit for switching connection of a signal line between the input / output terminal and the function expansion section according to a determination signal generated by the determination circuit. 2. The expansion device for a TV game machine according to claim 1, wherein the input / output device is incorporated.