JPS63246057A - Digital data transmission system - Google Patents

Abstract

PURPOSE:To prevent disabled transmission even with lots of transfer requests given by providing an index registration means to a center equipment so as to avoid longer waiting time even without lots of transfer requests. CONSTITUTION:The center equipment C is provided with an index registration means 2 registering an index of a terminal equipment TP requesting transfer. Then a CPU 3 in the center equipment C sends a digital data corresponding to the index registered by the registration means 2 to the terminal equipment T when a line tying the terminal equipment T and the center equipment C is idle. Thus, the waiting is not kept long when many transfer requests do not come and no transfer disabled state is reached even if lots of transfer requests arrive.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for transferring digital data such as game programs, information in and around a hotel, and event information.

[Prior Art] Recent game programs reach 1M bits or more, and even if they are transferred at a rate of 1M bits per second, it takes about 2 seconds for error checking and the like. On the other hand, when the above-mentioned device is used in a hotel or the like and a group of guests enters the hotel, they may request game and message information in a short period of time. In this case, it may not be possible to follow the response of the desired information, and the transfer may be extremely slow or the transfer itself may not be complete.

Specifically, in the conventional device, a plurality of programs are transferred sequentially (i'l), and a game type code identifying the game type is attached to the beginning of each program.
The terminal waits until the code of the required game and the code of the transferred game program match, and then imports the game program. This method is
Another method in the conventional device described above is that the terminal sends the code data of the required game type, requests the transfer, and the center device responds to the request to transfer the game program. There is a method for transferring programs. In this method, the game program is transferred in response to each request from the terminal, so if the number of transfer requests within s time is greater than the number of transfers available per unit time, processing overflows.

[Problems to be Solved by the Invention] The above-mentioned first conventional method has the problem of waiting until the requested game program is played, and the above-mentioned second conventional method has the problem of waiting until the game program that has been requested to be transferred is sent. Since the game program is transferred in response to the request, there is a problem of processing overflow if the number of transfer requests within a unit time is greater than the number of copies that can be transferred in a medium time period. That is, in the conventional example described above, there are problems in that the waiting time may be long even when there is no rush of transfer requests, and that transfer may become impossible when there is a rush of transfer requests.

[Means for Solving the Problems] The present invention is such that a predetermined terminal requests a center device to transfer digital data such as a game program, and the center device transfers the requested digital data to the terminal. In the digital data transfer method, the center device is provided with an index registration means for registering an index of the digital data that the terminal requests to transfer, and when the line connecting the terminal and the center device is free, Digital data corresponding to the index registered in the index registration means is sent to the terminal.

[Function] The present invention provides an index registration means for registering an index of digital data that a terminal requests to transfer in a center device, and when a line connecting the terminal and the center device is free, the index registration means Since the digital data corresponding to the index registered in the terminal is sent to the terminal, the waiting time will not be long if there is no rush of transfer requests, and the transfer will not become impossible even if there is a rush of transfer requests.

[Example] FIG. 1 is a block diagram showing one embodiment of the present invention.

This embodiment has one center device C and multiple terminals T.
l, T2. ...... are connected via a line.

The center device C has a data storage means 1, an index registration means 2, a CPU 3, a temporary storage means 4, and a modem 5.

The data storage means 1 stores a plurality of digital data, and this digital data includes various information such as game programs, information on and around the hotel, and event information.

The index registration means 2 is a means for registering an index (a code specifying which information among the above-mentioned digital data) of digital data that any one of the terminals Tl, T2) requests to transfer. It is.

The CPU 3 controls the entire center device C, and is also an example of a vacant space detecting means and an example of a data sending means. The above-mentioned empty detection means is means for detecting the empty state of the line connecting the terminals Tl, T2), . . . and the center device C. The data sending means is means for sending digital data corresponding to the index registered in the index registering means 2 to the terminal via the modem 5 and the line [L] when one line is idle. be.

The temporary storage means 4 stores terminals TI, T2 . . . , etc., when transmitting digital data, the digital data and the index corresponding to this digital data are combined and temporarily stored.

The terminal TI also includes a data selection switch 11, a memory 12, a CPU 13, a modem 14, and a display device 15 such as a CRT.

The data selection switch 11 is a switch for selecting one of a plurality of games or selecting desired information from various types of information. The memory 12 stores the game program or various information transferred from the center device 21G, and is also an example of a terminal-side index registration means for registering an index corresponding to information that is requested to be transferred to the center device C. The CPU 13 controls the entire terminal T1 and is also an example of terminal-side detection means.

This terminal-side detection means is means for comparing the index of digital data being transferred by the center device C with the index registered in the memory 12 and detecting a match.

Note that the terminal T2)... has the same configuration as the terminal T1.

Next, the operation of the above embodiment will be explained.

In the following description, an example will be described in which the digital data is a game program and the terminal requests transfer of one of a plurality of game programs. Further, in the embodiment L, the signal line from the center unit 21C to the terminals T1, IT2) and the signal line in the opposite direction are different.

First, it is assumed that the data selection switch 11 in the two terminals T1 has a plurality of switches, and one of them is pressed. As a result, an index corresponding to the game program is registered in the memory 12, and the index is sent to the center device C via the modem 14 and the line.

FIG. 2 is a flowchart illustrating the operation of the center device C in the above embodiment.

When the center device C receives an index from the terminal, it means that it has received a request to transfer the game program corresponding to the index (si), and - registers the above index in the index registration means 2 (32), at this time, Center device C and terminal T1. If no transfer has been made between T2)... (S3), it is determined whether the terminals T1, T2)... have sent a confirmation signal to the center device C for the game program just transferred. (
S4) If the confirmation signal has already been sent to the center device C, it is determined whether an index corresponding to the game program for which the transfer request is made is registered.S5) The index is registered. Therefore, the transfer of the game program corresponding to the registered index is started (S6), and the process returns to 51.

Prior to this transfer, the game program and an index corresponding to the game program are stored in the temporary storage stage 4, and the stored index and game program are transferred to the terminal via the modem 5 and the line. T.I.
, T2)...

On the other hand, in S4, if the confirmation signal for the game program transferred immediately before has not been sent to the center device C, it is determined whether there is a confirmation signal within a predetermined time after the transfer of the game program is completed (S7). If there is a confirmation signal, the game program has definitely been transferred, and the index corresponding to the game program whose transfer has been completed is erased (S8); if there is no confirmation signal, then the index corresponding to the game program whose transfer has been completed is deleted (S8).

Since the game program has not been transferred reliably, it is necessary to transfer the game program again.After the transfer, complete the ``2nd confirmation'' within a predetermined period of time, and then ``if'' transfer the 2nd game program. Make preparations, S
Return to l. In this case, after returning to Sl, in S6,
Transfer of the game program is started again.

On the other hand, at terminal TI, the center device C sends a message! a
When the index and game program are transferred via L, the CPU 13 compares the index from the center device C with the index registered in the memory 12 (the index stored in the memory 12 at the time of the transfer request). When they match, the game program transferred after the index is loaded into the memory 12, and thereafter, the game can be executed and enjoyed on the terminal T1 based on the loaded game program.

Immediately after the center device C receives the index corresponding to the game program that has been requested to be transferred from the terminal T1, if the line is free, the index is not registered in the index registration means 2; The game program corresponding to the index may be transferred immediately.

If a terminal other than terminal T1 requests transfer of the same game program that terminal Tl requested to transfer, terminal TI
At the same time as the terminal T1 imports the game program, a terminal other than the terminal T1 imports the same game program.

In addition, if a plurality of indexes are registered in the index registration means 2, the game programs may be transferred in the order of the earliest registration, or the game programs may be sent in the order of the number of transfer requests. Furthermore, the center equipment 'ae may register the index for which the transfer request was made from the terminal, and also register the number of the terminal for which the request was made.

In the above embodiment, if the number of transfer requests from the terminal is small, the requested game program can be transferred immediately after the request, so the waiting time does not become long and the number of transfer requests from the terminal is reduced. Even if there are many files, the game program can be reliably transferred without overflowing.

In the above embodiment, a case has been described in which a game program is transferred, but the same operation as described above is performed also when there is a request to transfer other digital data such as information in and around the hotel, event information, etc.

[Effects of the Invention] According to the present invention, a predetermined terminal requests the center device to transfer digital data such as a game program, and the center device transfers the requested digital data to the terminal. In the data transfer method, there is an effect that the waiting time does not become long when there is no rush of transfer requests, and the transfer does not become impossible even when there is a rush of transfer requests.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention. FIG. 2 is a flowchart showing the operation of the center device in the above embodiment. C... Center device, T1. T2)... Terminal, 1... Data storage means, 2... Index registration means, 3... CPU. Patent applicant Harada Kogyo Co., Ltd. Agent Arata Yokubo - 21st League

Claims (5)

[Claims] (1) In a digital data transfer method in which a predetermined terminal requests a center device to transfer predetermined digital data, and the center device transfers the requested digital data to the terminal, a plurality of digital data data storage means for storing; index registration means for registering an index of digital data requested to be transferred by the terminal; idle detection means for detecting an idle state of a line connecting the terminal and the center device; Transfer of digital data, characterized in that the center device has: a data sending unit for sending digital data corresponding to an index registered in the index registering unit to the terminal when the line is idle; method. (2) In claim 1, each terminal includes terminal-side index registration means for registering an index corresponding to the digital data that the terminal has requested to transfer, and an index of the digital data being transferred by the center device. and terminal-side detection means for detecting that the index registered in the terminal-side index registration means matches, and the digital data corresponding to the matched index is transmitted to the plurality of matched terminals. A digital data transfer method characterized by simultaneous reception of data. (3) The digital data transfer method according to claim 1, wherein the digital data is at least one of a game program, information in and around the hotel, and event information. (4) In claim 1, the index registration means does not store the index of the digital data that the terminal requests to transfer when the line is idle. Digital data transfer method. (5) In claim 1, when the line is idle, the data sending means:
A digital data transfer method characterized in that, among the digital data corresponding to the indexes registered in the index registration means, the digital data are sent in the order in which transfer requests are received or in the order in which there are more transfer requests.