JPH0522190A - Fetch-ahead discrimination system - Google Patents

Abstract

PURPOSE:To cope with operation to fetch ahead one signal information from many external devices by using the absolute minimum transmission lines. CONSTITUTION:Signal information of a slave-side external device 4 which first outputs press information is inputted to a master-side fetch-ahead discriminating device 1. This device 1 is caused to take out signal information from a master- side external device 3 or the slave-side external device 4 which first outputs press information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pre-emption judging system for judging pre-emption of a call right in a communication device or the like for a 1-to-N press talk.

[0002]

2. Description of the Related Art FIG. 3 is a block diagram showing a conventional pre-taken judgment system. In FIG. 3, 3 is a plurality of external devices on the master side for outputting press information and signal information, and 5 is a pre-taken judgment device. The pre-taken determination circuit 6 for determining the earliest output of the press information output by the side external device 3, and the signal information from the master side external device 3 corresponding to the earliest press information according to the result of the determination. The signal information selection circuit 8 outputs (for example, audio information) through the selection switch 7. Reference numeral 9 denotes a receiver as a wireless device, which outputs signal information and press information to the signal information selection circuit 8 and the pre-take determination circuit 6, respectively.

On the other hand, 4 is a plurality of slave side external devices which respectively output press information and signal information, and these respective information signals are supplied to a transmitter 10 as a radio device.
The transmitter 10 also wirelessly transmits the above information to the receiver 9 through an antenna.

Next, the operation will be described. First, when the signal information is output from each of the external devices 3 and 4, the press signal is output by the press operation, and then the signal information is output. The pre-take determination device 5 takes in the slave-side press signal input through the transmitter 10 and the receiver 9 and the master-side press signal from the master-side external device 3 into the pre-take determination circuit 6 to determine the earliest press information. Then, the signal information selection circuit 8 is caused to select and output the signal information corresponding to the earliest press information according to the result of this determination.

[0005]

Since the conventional pre-emption judging system is constructed as described above, the master side external device 3, the pre-picking judging circuit 6 and the signal information selecting circuit 8 are provided.
There is a structural limit to the number of devices that can be connected to, and in particular, when signal information of a large number of slave side external devices 4 at remote locations is to be captured, for example, by wire, transmission lines 11 and 12 are added in accordance with the number. There were issues such as having to do.

The invention of claim 1 has been made in order to solve the above problems, and the operation of prefetching one signal information from a large number of external devices on the master side and the slave side can be performed with a minimum necessary amount. It is an object of the present invention to obtain a pre-emption judging system which can be handled by using a transmission line.

It is another object of the present invention to provide a pre-emption judging system capable of wirelessly inputting signal information from a slave-side external device to the master-side pre-picking judging device.

[0008]

The pre-taken judgment system according to the invention of claim 1 takes in press information from the slave-side external device by the slave-side pre-taken judging device,
The signal information of the slave side external device that outputs the press information earliest is input to the master side pre-take determination device, and the master side pre-take determination device is output from the master side external device or the slave side external device that outputs the press information earliest. This is so that the signal information of can be taken out.

Further, in the pre-taken judgment system according to the invention of claim 2, the signal information from the slave side pre-taken judging device is wirelessly transmitted to the master side pre-taken judging device by the radio.

[0010]

In the slave-side pre-taken judging device according to the present invention, only one signal information pre-judged by the slave-side external device is inputted to the master-side pre-taken judging device together with the signal information from the master-side external device. Therefore, the number of transmission paths for inputting signal information to the master-side signal information selection circuit can be significantly reduced.

Further, according to the second aspect of the present invention, the radio device enables the signal information from the slave side external device to be wirelessly transmitted to the master side pre-take determination device at a remote place.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the invention of claim 1 will be described below with reference to the drawings. In FIG. 1, 3 is a plurality of master side external devices which output press information and signal information, 1 is a master side pre-determination device, which is the earliest output of the press information output by each master side external device 3. And a signal information selection circuit for outputting signal information (for example, voice information) from the master side external device 3 corresponding to the press information outputted earliest through the selection switch 7 according to the result of the determination. 8 and.

On the other hand, 4 is a plurality of slave side external devices which respectively output press information and signal information, and 2 is a slave side pre-determination device, which is a slave side external device 4.
Of the press information output by the prefetch determination circuit 6A, and a switch for selecting signal information from the slave side external device 4 corresponding to the press information output earliest according to the determination result. 7A and a signal information selection circuit 8A. Further, 11A and 12A are pre-taken decision circuits 6 and 6A in the pre-taken decision devices 1 and 2 arranged relatively close to each other.
And a signal information selection circuit 8 and 8A.

Next, the operation will be described. First, when the signal information is output from each of the external devices 3 and 4, the press signal is output by the press operation, and then the signal information is output. In the master side pre-determination device 1, the transmission line 11
The press signal on the slave side and the press signal on the master side from the master side external device 3 input through A and 12A are taken into the pre-taken judgment circuit 6, the earliest press information is judged, and the signal information is selected according to the judgment result. Circuit 8
, And selects and outputs the signal information corresponding to the earliest press information.

By the way, the earliest press signal and signal information from each slave side external device 4 inputted through the transmission lines 12A, 11A are outputted from the slave side pre-determination device 2 as follows. That is, in outputting the signal information from each slave side external device 4,
When the press signals are output from the respective devices, the slave side pre-take determination device 2 determines the earliest information by the pre-take determination circuit 6A, and based on the result of this determination, the total press information, the corresponding signal information is selected. Circuit 7A
To select.

Then, the selected signal information together with the total press information, the master side pre-take determination device 1
Is supplied to each of the slave-side pre-determination devices 2 via the transmission lines 11A and 12A. Therefore, the signal information selection circuit 8 on the master side selects and outputs one of the signal information from all the external devices 3 and 4. If there is a further pre-taken judgment device (not shown) above the master side pre-taken judgment device 1,
The total press information from the pre-taken judgment circuit 6 on the master side is input to this.

FIG. 2 shows an embodiment of the invention of claim 2. That is, in the invention of claim 1, the two pre-determination devices 1 and 2 on the master side and the slave side are placed close to each other,
Although a large number of the external devices 3 and 4 are connected, in the invention of claim 2, the pre-taken judging devices 1 and 2 are placed at a remote place, and the transmitter 10 as a wireless device moves from the slave side pre-taken judging device. The total press information of the pre-emption from 2 and the corresponding signal information are transmitted, and the master side is received by the receiver 9 as a radio device, so that the pre-determination information of the slave-side pre-pickup device 2 is gathered into one. Then, the data is transferred to the master-side pre-taken judging device 1, and the transmission lines 11B and 12B between the master-side and slave-side pre-taken judging devices 1 and 2 can be significantly reduced as compared with the prior art.

[0018]

As described above, according to the first aspect of the present invention, the slave-side pre-allocation determining device takes in the press information from the slave-side external device and outputs the press information earliest to the slave-side external device. Since the signal information is input to the master-side pre-take determination device and the master-side pre-take determination device can take out the signal information from the master-side external device or the slave-side external device that outputs the press information earliest, There is an effect that a communication device such as an N-prestalk system can be easily realized with a simple transmission line and equipment.

According to the second aspect of the present invention, the signal information from the slave side pre-determination device is transmitted by the wireless device.
Since it is configured to wirelessly transmit to the master side pre-emption judging device, in addition to the above effect, it is possible to enter the pre-emption competition in real time with the signal information in the remote device in addition to the above effect, and the master side Also, there is an effect that a transmission line between the prefetch judging devices on the slave side can be omitted.

[Brief description of drawings]

FIG. 1 is a block diagram showing a pre-take determination system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a pre-taken judgment system according to an embodiment of the present invention.

FIG. 3 is a block diagram showing a conventional pre-emption judging system.

[Explanation of symbols]

1 Master side pre-determination device 2 Slave-side pre-determination device 3 Master side external device 4 Slave side external device 9 Receiver (radio) 10 transmitter (radio)

Claims (2)

[Claims] 1. A plurality of master-side external devices that output press information and signal information, and press information from the master-side external device that takes in the press information from the master-side external device and outputs the press information earliest. Master side pre-take determination device for taking out and outputting, a plurality of slave side external devices for outputting press information and signal information, and the slave side for taking in the press information from the slave side external device and outputting the press information earliest A slave that inputs signal information of an external device to the master-side pre-take determination device and causes the master-side pre-take determination device to take out the signal information from the master-side external device or the slave-side external device that outputs the press information earliest. A pre-taken judgment system including a side pre-taken judgment device. 2. A plurality of master-side external devices that output press information and signal information, and press information from the master-side external device that takes in the press information from the master-side external device and outputs the press information earliest. Master side pre-take determination device for taking out and outputting, a plurality of slave side external devices for outputting press information and signal information, and the slave side for taking in the press information from the slave side external device and outputting the press information earliest A slave that inputs signal information of an external device to the master-side pre-take determination device and causes the master-side pre-take determination device to take out the signal information from the master-side external device or the slave-side external device that outputs the press information earliest. The side pre-taken decision device and the signal information from the slave side pre-taken decision device are used to determine the master side pre-taken decision. A pre-emption determination system including a radio that wirelessly transmits to the device.