JPH01254028A - Group calling system - Google Patents

Abstract

PURPOSE:To make the group calling highly efficient by storing a group call number of plural groups to which a relevant receiver belongs to a storage element of the receiver so as to allow one set of receiver to receive plural group callings from a base station. CONSTITUTION:The base station sends a group all number and a message of a called group in a radio signal, and each receiver receives the call signal and the message from the base station and decoder 7 decodes them. Then the decoder output is collated with the group call number of the plural groups belonging to itself stored in a storage element 8 by a collation section 9 and when the both are coincident, a ring tone or the message display are applied by a display device 13. Thus, the call by individual group attribute such as a department or a section of a possessor of the receiver is attained by radio transmission. Thus, the group call is made highly efficient.

Description

DETAILED DESCRIPTION OF THE INVENTION <Field of Industrial Application> The present invention relates to a group paging system in a wireless individual selective paging system comprising a base station and a plurality of receivers.

<Prior art> Conventionally, this type of individual selective calling system includes a base station that wirelessly transmits calling signals and messages, receives and decodes the calling signals etc. from this base station, and stores the decoded output in a storage element. There is a known receiver that compares the received calling number with one's own calling number, and when the two numbers match, it emits a buzzer and displays a message. The group calling method in this individual selective calling system stores the individual calling number of the receiver in the storage element of the receiver as a 3-digit number in 4-bit binary coded decimal (BCD) as shown in Fig. 4. On the other hand, in the transmission signal from the base station, an identification flag of "0" for an individual call and "B" for a group call is added in front of the above-mentioned individual call number of the receiver to be called. , "0200", only the receiver with the individual calling number 200 will be called, and "1200"
In this case, receivers with individual calling numbers in the 200s are called as one group.

<Problems to be Solved by the Invention> However, in the conventional group calling system described above, the number of receivers that can be called by one transmission from the base station is, for example, 120.
0”, 100 units from 200 to 299, “1220”
In this case, the number is fixed to 10 receivers numbered 1220 to 1229, and there is a drawback that it is not possible to call multiple receivers in different groups such as number 300 or number 230. Therefore, when attempting to make such a call, the base station must transmit more than once, which increases the amount of operation required by the operator and also prevents effective use of wireless communication. In addition, the conventional group calling method described above is based on grouping based on the order of individual calling numbers of receivers, so it has the disadvantage that calls cannot be made based on individual group attributes such as the department or club to which the receiver holder belongs. There is.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a group paging system in an individual selective paging system that can efficiently perform paging based on the attributes of each receiver, that is, a plurality of groups to which each receiver owner belongs.

Means for Solving the Problems> In order to achieve the above object, the group calling system of the present invention includes a base station that wirelessly transmits a calling signal or message for individual or group calling, and a base station that wirelessly transmits a calling signal or message for individual or group calling, and a In an individual selective calling system consisting of a receiver that receives and decodes a signal or message, compares the decoded output with the memory content stored in a storage element, and when the two match, makes a sound or displays a message. , the group call numbers of the plurality of groups to which the receiver belongs are stored in the storage element of the receiver, so that one receiver can receive a plurality of group calls from the base station. Features.

Function> The base station wirelessly transmits the group calling number and message of the group to be called, and each receiver receives and decodes the calling signal and message from the base station, and stores the decoded output in the storage element. It compares the group call numbers of multiple groups to which it belongs, and when the two match, it makes a sound or displays a message. Therefore, calls based on individual group attributes such as the department to which the receiver holder belongs can be made by one wireless transmission.

<Example> Hereinafter, the present invention will be explained in detail with reference to illustrated embodiments.

FIG. 1 is a block diagram showing an example of the individual selective calling system of the present invention, in which 1 is an input section consisting of a keyboard, etc. for manually inputting an individual calling number, a group calling number, and a message to be transmitted, and 2 is an input section for this input. An encoder 3 encodes the data from the encoder 2 into a digital signal, and a transmitter 3 modulates a carrier wave with the digital signal from the encoder 2 and sends it out as a radio wave from the transmitting antenna 4. These blocks serve as a base station. Configure.

Further, 5 is a receiving antenna that receives the radio waves, 6 is a receiving section that amplifies and demodulates the received signal from this receiving antenna 5, and 7 is a decoder that decodes the signal demodulated by this receiving section 6 into a corresponding decimal number. , 8 is a storage element for storing group call numbers of a plurality of groups to which this receiver belongs;
9 stores the call number decoded by the decoder 7 in a storage element 8.
A collation unit that collates the group call number stored in , and outputs a selective call signal when the two match; lO is a speaker amplifier that amplifies the selective call signal and makes the speaker 11 sound; !; Reference numeral 2 denotes a drive circuit which receives the selective call signal and displays the current message outputted from the decoder 7 on a display 13 such as an LCD, and these blocks constitute a receiver.

FIG. 2 shows the format of the calling number stored in the memory element 8 of the receiver. It consists of an individual call number, which is a serial number, and an arbitrary number of group call numbers, each consisting of a similar three-digit number. An identification flag of "0" and "B" are added in front of the individual call number and the group call number, respectively.

FIG. 3 shows a specific example of the group call number in a system with 1000 receivers. In other words, in the group call number, as shown in the figure, the most significant digit (fourth digit) is all l, the last two digits 1 to 4 represent each department, 5 to 10 represent each position, and 11
-15 are assigned to each club they belong to and the university they graduated from. Therefore, for example, the receiver of Mr. A, a graduate of X University who is the general affairs manager and a member of the Go club, has 1001, 1005, 100.
Seven group call numbers 6,1008.1010.1013.1014 and one individual call number from 0000 to 0999 are stored. In addition, the receiver of Mr. B, a Hira employee in the sales department and a graduate of Y University who is a member of the baseball club, has 1003.
．． Three group calling numbers 1011, 1015 and one individual calling number are stored.

The group calling method in the individual selective calling system having the above configuration will be described next.

The base station sends the group call number and message of the group to be called, for example, if you want to hold a manager's meeting, number r1005 (manager)'', message [AMIO Jori,
Send with the contents of "C Nite Kai Geary". Then, each employee's receiver receives a wireless signal from the base station, decodes it with the decoder 7, determines that it is a group call based on the fourth digit "B," and stores the decoded output in the storage element 8 in the collation unit 9. It compares it with its own group calling number, and when the two match, it outputs a selective calling signal.Therefore,
In the full-length receiver, the speaker ti emits a sound upon receiving the selective call signal, and the display 13 displays the demodulated message ``RAM10JORI,CNITEKAIGARI''.

Also, if you want to call the entire tennis club, please use url
If you send OI 2J's group calling number, the receivers of all employees belonging to the tennis club will ring and display a message. - On the other hand, when making an individual call, if the base station transmits the individual call number r0238j, for example, as in the past, the receiver of the employee number 238 will ring and display a message.

As described above, according to the present invention including the above-described embodiments, it is possible to make a call based on individual group attributes such as the department or department to which a person with a receiver belongs, and to reduce the amount of operation by the base station operator. This has the advantage that wireless communication can be used effectively, and that highly functional group calls can be made by subdividing groups.

It goes without saying that the present invention is not limited to the above embodiments.

<Effects of the Invention> As is clear from the above explanation, the group paging system of the present invention includes a base station that wirelessly transmits a paging signal and a message,
The receiver belongs to an individual selective calling system consisting of a receiver that receives and decodes this transmitted signal, compares the decoded output with the memory contents of the storage element, and when the two match, makes a sound or displays a message. Since the group call numbers of multiple groups are stored in a storage element so that a single receiver can receive multiple group calls from a base station, the individual group attributes of the receiver A call can be made by one radio transmission, reducing the amount of operation required by the base station operator, and realizing highly efficient group calling.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an example of the individual selective calling system of the present invention, FIG. 2 is a diagram showing the format of the calling number stored in the memory element of the system, and FIG. 3 is a specific example of the group calling number. FIG. 4 is a diagram showing the format of an individual calling number stored in a storage element of a conventional receiver. 1... Human power section, 2... Encoder, 3... Transmitting section, 6... Receiving section, 7... Decoder, 8... Storage element, 9... Verification section, 11...・Speaker, 13...
display. Patent applicant: Sharp Corporation Agent
Patent Attorney Aoyama Haka 1 Figure 2 Figure 4 4 pits 4 bits 4 pits Hundreds place Tens place - place

Claims (1)

[Claims] (1) A base station that wirelessly transmits calling signals and messages for individual or group calling, and memory contents that receive and decode the calling signals and messages from this base station and store the decoded output in a storage element. In an individual selective calling system consisting of a receiver that makes a sound or displays a message when the two match, the group call numbers of the multiple groups to which the receiver belongs are stored in the memory element of the receiver. A group call system characterized in that a single receiver can receive a plurality of group calls from the base station by storing a plurality of group calls.