JPH0241190A - Family computer communication system - Google Patents

Abstract

PURPOSE:To provide a communication system for a television game having no influence due to a communication delay by providing a means for correcting the times lag of data inputted from the input parts of two sets of television game machines. CONSTITUTION:A number code repeatedly generated synchronously with a key scan pulse is transmitted to a remote side. A receiving side of the number code synchronizes the data of its own with the contents of this number code and transmits it. In order to detect a delay, synchronize the transmits the data, the number code of the remote side and the number code of its own are stored and a timer is operated. Then, the timer is stopped by the scan pulse of its own to measure the delay from the input of the remote side data ot the generation of the scan pulse of its own. This operation is performed several times to obtain an average value. This average value is compared with a preset value, thereby correctly detecting the deal delay.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a Famicom communication system suitable for playing games, etc. using at least two Famicom computers connected via a communication line. be.

[Conventional technology]

As shown in Figure 5, the Famicom l connected to the TV3
Connect two keypads (controllers) 8.9 to
A game may be played by multiple people. By using communication lines, it has become possible to play such games between people in remote locations. A modem device is required to play a game via a communication line, and signals from the Famicom are supplied to the communication line via the modem device.

[Problem to be solved by the invention]

In this conventional Famicom communication system, it is difficult to ensure high-speed responsiveness of games due to timing differences between key scan signals between two Famicom computers connected via a communication line and signal delays in the communication line. difficult. Therefore, in real-time action games and the like, the response becomes slow and the game becomes less interesting. On the other hand, if the game speed is increased in such a system, synchronization between the two Famicom computers cannot be achieved, and the game becomes essentially impossible.

The present invention has been made in view of these problems in the prior art, and it is an object of the present invention to provide a Famicom communication system that is not affected by communication delays.

Means for Solving Problem C] The Famicom communication system according to the present invention is a system for performing communication between at least two Famicoms connected via a communication line, wherein the at least two Famicoms The apparatus comprises means for correcting a time lag in data inputted from the input section. Further, the Famicom communication system of the present invention is a communication system equipped with means for correcting a time lag in key input between at least two Famicom computers connected via a communication line, and which includes a number code that repeatedly occurs. is sent to the other party's device in synchronization with the key scan pulse, and the other party uses the number code to correct the time lag.

[For production]

It bumps the signal input from the keypad, calculates the delay time based on the data included in the signal from the other party, corrects the discrepancy between the two data, and sends the signal to the Famicom. Errors due to differences in the phase or frequency of key scan pulses between two Famicoms are corrected by synchronizing the repeatedly generated number code with the key scan pulse and sending it to the other device.

〔Example〕

FIG. 1 is a diagram showing a system configuration of an embodiment of the present invention. As shown in the figure, a communication adapter 5.6 according to the present invention is connected to the joyhots of two Famicom 1.2 connected to a TV 3.4. Further, the communication adapter 5.6 is connected via the communication line 7, and furthermore, the communication adapter 5.6 is connected via the communication line 7.
．． Joy-cons 8 and 9 are connected to 6 and 6, respectively.

FIG. 2 is a block diagram showing the inside of the communication adapter 5. As shown in FIG. The communication adapter 5 is equipped with a modem section 13, an arithmetic control section 10, an input section 14, and an output section 11.12 that forms an output to the Famicom.

Note that the input unit 14 may be included in the calculation control unit 10.

FIG. 3 is a block diagram showing the arithmetic control section 10 in detail. As shown in the figure, the calculation control unit 10 includes a delay detection unit 15, a key buffer 14, and a shift register variable unit 17.
and a communication control unit 18.

FIG. 4 is a timing chart showing the timing of data. Next, the operation of the present invention will be explained with reference to FIG. In FIG. 4, (al and (bl) indicate the key scan pulses generated by each Famicom 5.6. These key scan pulses (al, (b) indicate the state of the keypad as data for the Famicom 5.6.
is taken into the main body of. If you use a communication adapter, (C
) and (d), a delay corresponding to the time between tl-t2 and t3 to t4 occurs when data is sent to the other party's modem. In order to play games on two Famicoms at the same time, a pair of data indicated by m and n in the figure must be sent to the Famicoms in the correct order. That is, the player's data taken in at the time of the m pulse and the opponent's data taken in at the time of the n pulse need to be input in the correct order as data for each Famicom 1.2. Due to communication delays, in FIG. 4, data is input from one to the other Famicom at pulse n+3, and data is further input from the other to one Famicom at pulse m+3. For example, if the transmission of data captured at timings m and n is delayed until timings m+3 and n+3, the data sent to both Famicom computers will be a pair of data delayed by three pulses.

However, since the power supplies of both Famicom computers are not turned on at the same time, the time difference between m and n changes by one pulse at most. Therefore, if it becomes N pulses, the data at m is sent to the other party at N+2, as shown in figure flS4. However, the data for N cannot arrive until m+4. If data is sent to the Famicom in this state, it will not be able to receive the necessary data when it is needed, and the two Famicom computers will operate in different ways. As is clear from the above, the delay that occurs between Famicoms is the sum of the data communication delay and the key scan pulse delay. Here, the data communication delay is relatively constant because it depends on the hardware and communication speed. However, the delay of the key scan pulse is
It varies depending on the timing when the device is operated, and
It gradually changes depending on the phase difference of the key scan pulses in each device. In order to correct this, the present invention sends a repeatedly generated number code to the other party in synchronization with the key scan pulse. On the side that receives the number code,
Synchronize your data with the contents of this number code and send it out. To detect the delay and send data in synchronization, the other party's number code and your own number code are memorized and a timer is activated. Next, when you stop the timer with your own scan pulse, the delay between when the other party's data is input and when your own scan pulse occurs is measured.

Repeat this operation several times and find the average value. By comparing this average value with a preset value, the delay can be detected correctly.

The variable shift register is necessary to delay the captured data by several pulses; for example, if m pulse data is to be sent to the Famicom at m+3, a three-stage shift register is required. The number of pulses to delay this is
It needs to be variable in order to follow the changing key scan pulse.

The communication adapter 5.6 also has call/originating side and answer mode side detection functions, modem data separator 1-, auto-dial, answer tone detection, automatic data error correction, line disconnection inspection, and , there is a function to prohibit or control data transmission/reception.

Next, the operation of the system shown in FIG. 1 will be explained.

First, after turning on the power of the game device, the user makes a telephone call to the other party and determines the calling party and the answering party. Then, if the user wants to make a call during the 6-game game by switching the telephone to the modem side and starting the game, the game is interrupted by switching the changeover switch. Then, by switching the switch again, the game can be resumed.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to obtain a Famicom communication system that does not suffer from the effects of communication delays.

[Brief explanation of the drawing]

Fig. 1 is a system configuration diagram showing the system configuration of an embodiment of the present invention, Fig. 2 is a block diagram of the communication adapter, Fig. 3 is a block diagram of the arithmetic control section, and Fig. 4 is a timing diagram showing the data timing. The chart, FIG. 5, is a connection diagram of a conventional example. Explanation of codes 12--Famicom, 3.4--T V5.6
・-・Communication adapter, 7...-Communication line 8.9--Joypad

Claims (2)

[Claims] (1) A system for communicating between at least two Famicom computers connected via a communication line, and means for correcting a time lag in data input from the input units of the at least two Famicom computers. A Famicom communication system characterized by being equipped with. (2) A communication system that is equipped with means for correcting the time lag in key input between at least two Famicom computers connected via a communication line, and that synchronizes the repeatedly generated number code with the key scan pulse. 1. A Famicom communication system, wherein the number code is used to correct a time difference on the other party's side.