JP2569985B2 - Broadcast / call method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcast / communication system used in a system cordless telephone.

2. Description of the Related Art Usually, a cordless telephone used at home has a configuration of one master unit and one or two slave units, but a cordless telephone used in a company (this is called a system cordless telephone). Means a plurality of master units (connecting devices) and slave units (communication devices), and control devices and PBs that control these master units.
It is composed of X and so on.

When a caller uses such a system cordless telephone to talk to a party whose individual call number is unknown, for example, one slave unit, one slave unit is called, and whether or not he / she wants to talk is called. There is no other way than to make a call after confirming.

Therefore, it is necessary to provide a system cordless telephone so that a caller can easily communicate with a caller.

[0005]

2. Description of the Related Art FIG. 5 is an example of a configuration diagram of a conventional example, in which (A) shows a configuration diagram of a connection device, and (B) shows a configuration diagram of a communication device. FIG. 6 shows an example of the format.

First, in a system cordless telephone, a general notification (paging) is performed using the data transmission procedure of the cordless telephone as it is. Thus, a sequential calling method in which a connection device (hereinafter abbreviated as BS) calls each one using individual identification codes corresponding to a plurality of communication devices (hereinafter abbreviated as PS), and a plurality of PSs There are two methods of calling simultaneously by using a system common code different from the individual identification code.

Here, the broadcast is used when the caller wants to hear the call because any one of a plurality of PSs may be used. When one PS hears the report, the broadcast ends at that point. . Hereinafter, two methods will be described with reference to FIGS.

<Sequential calling method> a. The receiving section 222 of the PS intermittently receives a control channel (hereinafter abbreviated as C-CH). Each PS has a unique second ID. b. When a call request via an exchange (not shown) and a line control unit 120 is applied to the control unit 13, the BS transmits a call request signal as shown in FIG. 6 via the modulation unit 111 and the transmission unit 112. And send it to PS for _one hour.

The second ID of the PS is, for example, No. 1
To The user code is one ID given to both BS and PS. c. The PS having the second ID of No. 1 (hereinafter referred to as PS ₁ ) extracts the call request signal by the receiving section 222 and the demodulating section 221 and sends it to the control section 24. The control unit synchronizes and fetches the input call request signal because the user code matches, the control code is a call request, and the second ID matches. If the second ID does not match, it will not be imported. d. The PS returns a response to the received call request to the BS in the format described above.

Here, a code corresponding to the response is inserted into the control code portion. e. The BS detects the response signal and sets the communication channel (hereinafter, S-
(Abbreviated as CH) and send to PS. f. The PS changes the frequency of the transmission unit 212 and the reception unit 222 so that transmission and reception can be performed using the designated S-CH, and returns a response to the BS. g. Since the transmitter 112 and the receiver 122 of the BS have also changed the frequency to the designated S-CH, the ringer is transmitted from the BS to the PS. h. PS rings, so if you go off-hook, the response will be BS
Is returned to the telephone line, a loop of the telephone line is made, and the call applicant can talk with the other party, and the call is finished, and the broadcast is completed.

The return of the PS having the No. 1 second ID is
t If no ₂ hours have passed, PS with No. 2 second ID
Performs the same operation as described above. Hereinafter, this is repeated for the remaining PS.

<Calling method using common ID> a. The BS inserts the general call mode in the control code in the format shown in FIG. 6 and the system common ID in the second ID, and sends it to all PSs. b. When the PS detects the simultaneous call mode from the received signal, the PS beeps the buzzer 23 for a certain period of time, notifies the simultaneous call, and ends.

This is because the BS has only one transmitter and one receiver and cannot receive transmission signals from a plurality of PSs. If the meaning of the buzzer is determined in advance, the PS behaves as determined.

[0014]

SUMMARY OF THE INVENTION As explained above,
In the case of broadcast (paging), since it is not known which PS is received, the sender cannot use it unless the condition that any PS can be used among a plurality of PSs.

[0015] Therefore, the caller is the second ID of the call applicant
If the caller is unknown or the caller cannot be determined without a broadcast (for example, if the caller has lent a book to a person but forgot to name it to reminder), the broadcast cannot be used and the PS There is a problem that there is no other method than calling and calling individually.

It is an object of the present invention to enable a caller to easily talk to a partner who wants to talk, for example, without knowing the individual call number.

[0017]

FIG. 1 is a block diagram showing the principle of the present invention. In the figure, SW ₁ is a first switch, SW ₂ , S
W ₃ is the second of the switch.

Reference numeral 41 denotes a broadcast end signal generating portion for generating a broadcast end signal, and reference numerals 51 and 61 denote a broadcast end signal detecting portion for detecting the broadcast end signal. Then, the connection device transmits the broadcast message to all the communication devices using the control channel (C-CH), and then transmits the predetermined communication channel.
The process proceeds to (S-CH), and the first switch is turned off so that the output of the internal receiver is not transmitted to the outside, and a report is simultaneously transmitted to all the communication devices.

On the other hand, the communication device receives the broadcast signal and sends out a corresponding output, shifts to the predetermined communication channel, and turns off the second switch to change the output of the internal transmitter. The message is received in such a manner that the message is not transmitted, but only the communication device that has conformed to the message among the communication devices that have received the notification turns on the _second switch (SW ₂ ) to generate a call request signal. Send it to the connection device.

Therefore, the connection device sends a broadcast notification end signal to a communication device other than the communication device that sent the call request, and shifts the communication device that has detected the broadcast notification end signal to a control channel. And let it be in the receiving state,
The first switch is turned on to perform an individual call with the call device that sent the call request signal.

[0021]

DETAILED DESCRIPTION OF THE INVENTION The present invention, connection device using C-CH, after sending the Broadcast signal to the communication device, the process proceeds to a predetermined S-CH, turns off the switch SW _1, the interior of the receiver So that the output of is not sent to the outside.

On the other hand, all the communication devices receive the broadcast notification signal and transmit an output for a predetermined period of time, and automatically output the above-mentioned signal.
At the same time as shifting to the S-CH, the second switches SW ₂ and SW ₃ are turned off to set the internal transmitter to a state where transmission is disabled.

Therefore, the connection device is a voice communication for all the communication devices.
And send a notification all at once. The intercom receives this notification
Only the communication device that meets the conditions of the report is
H SW _TwoIs turned on to send a call request signal.

[0024] For the communication device other than the communication device that sent the connection device call request signal, and transmits the Broadcast termination signal causes transition of these communication devices to C-CH, the first switch SW ₁ When turned on, individual communication is performed with the communication device that has transmitted the communication request signal.

Thus, even if the caller does not know, for example, the individual call number of the other party who wants to talk, the caller can easily talk with the other party.

[0026]

FIG. 2 is a block diagram of an embodiment of the present invention, showing a connection device (BS). FIG. 3 is a block diagram of an embodiment of the present invention, showing a communication device (PS). (A) is the first
In the communication device of (PS _1), (B) it is shown a communication device other than the first communication device is the same as the block diagram.

FIG. 4 is a diagram for explaining the operation of the embodiment of the present invention. In the figure, BS other than BS, PS ₁ and PS ₁ show the operation of the corresponding devices. Hereinafter, connection device-1 (hereinafter abbreviated as PS ₁ )
2 and FIG. 3 will be described with reference to FIG. 4 assuming that the communication device transmits a call request signal to a connection device (hereinafter abbreviated as BS).

Modulation units 111, 211, 311 and transmission units 112, 212, 312, which are components of the system cordless telephone.
The functions of the demodulators 121, 221, 321; the receivers 122, 222, 322; the amplifiers 220, 320; and the line controller 120 are the same as those in the conventional example.

First, when the caller presses the broadcast button (not shown) on the keyboard, a broadcast command is input to the control unit 4 in the BS shown in FIG. When the control unit 4 detects that the input signal is a broadcast command, the control unit 4 shown in FIG.
The general call mode is added to the control code in the format shown in (1) and a signal with the system common ID inserted in the second ID is generated and transmitted to all PSs using the C-CH via the modulator 111 and transmitter 112. (See FIG. 4).

The oscillating frequencies of the transmitting oscillator and the receiving oscillator (not shown) are changed so that the transmitting section 112 and the receiving section 122 operate on a predetermined S-CH set in advance. On the other hand, FIG.
The PS shown in (1) extracts the above signals via the receiving units 222 and 322 and the demodulating units 221 and 321 and sends them to the control units 5 and 6.

[0031] When the control unit has a signal is detected that is the paging mode, and notifies the paging ring the buzzer 23 a certain time, but shifts like the BS in a predetermined S-CH, the switch SW _2, Turn off SW ₃ to disable transmission.

After that, the BS sends out a report by voice (for example, the person who borrowed the caller's book has been contacted).
Listens to the notification via the receiving units 222 and 322, the demodulating units 221 and 321 and the amplifying units 220 and 320 (see FIG. 4).

Then, when the PS ₁ adapted to the notification presses a call request button on a keyboard (not shown), the control unit 5
Figure while on like a dotted line switch S _2, a second ID corresponding to the control code and the PS ₁ corresponding to the call request 6
(See FIG. 4).

When the control unit 4 of the BS detects that the received signal is a call request from the PS ₁ , the broadcast report end signal generation unit 41 generates a broadcast report end signal, and this signal is sent to the PS _1.
Are transmitted individually and sequentially to the other PSs (see FIG. 4).

When the broadcast signal end signal detecting portion 61 in the control section 6 detects that the input signal is the broadcast signal end signal, the PS other than the PS ₁ shifts to the C-CH and receives the signal. Operate the unit.

As a result, PSs other than PS ₁ enter a standby state, but PS ₁ enters a state of individual communication with the BS. That is, even if the caller does not know, for example, the individual call number of the other party who wants to talk, the caller can easily talk with this party.

[0037]

As described above in detail, according to the present invention, it is possible for a caller to easily talk to a caller who does not know the individual call number of the caller, for example. effective.

[Brief description of the drawings]

FIG. 1 is a principle block diagram of the present invention.

FIG. 2 is a block diagram of an embodiment of the present invention;
It shows about.

FIG. 3 is a block diagram of an embodiment of the present invention;
It shows about. (A) is the first communication device (PS ₁ ).
(B) shows a communication device other than the first communication device, which is the same as the block diagram.

FIG. 4 is an explanatory diagram of the operation of the embodiment of the present invention.
₁ and PS other than PS ₁ indicate the operation of the corresponding device.

FIG. 5 is an example of a configuration diagram of a conventional example, in which (A) is a configuration diagram of a connection device, and (B) is a configuration diagram of a communication device.

FIG. 6 is a diagram showing an example of a format.

[Explanation of symbols]

BS connection device PS communication device SW ₁ , SW ₂ , SW ₃ switch 41 Broadcast termination signal generation part 51, 61 Broadcast termination signal detection part

Claims (1)

(57) [Claims] 1. A communication system comprising a connection device (BS) and a plurality of communication devices (PS), a control channel (C-CH) and a communication channel (SC).
H) to establish a link between the connection device and the communication device to perform a broadcast or individual call in a system cordless telephone, the connection device is provided with a first switch (S
W ₁ ) and a broadcast message end signal generation portion 41 for generating a broadcast message end signal are connected to the communication device by a second switch (SW ₂ , SW ₃ ).
And a broadcast end detection part (51, 61) for detecting the broadcast end signal, respectively, and the connection device transmits the broadcast signal to all the communication devices using the control channel, and then performs a predetermined communication. After switching to the channel, the first switch is turned off so that the output of the internal receiver is not transmitted to the outside, and a report is simultaneously transmitted to all the communication devices. Upon receiving the broadcast signal and transmitting the corresponding output, the mobile station shifts to the predetermined communication channel and turns off the second switch so that the output of the internal transmitter is not transmitted, thereby receiving the notification. However, among the communication devices that have received the notification, only the communication device that conforms to the notification turns on the _second switch (SW ₂ ) and sends a communication request signal to the connection device. Other than the communication device that sent the call request A broadcast notification end signal is transmitted to the communication device of the above, the communication device that has detected the broadcast notification end signal is shifted to a control channel to be in a reception state, and the first switch is turned on to perform the communication. A simultaneous reporting / communication method, wherein individual communication is performed with a communication device that has transmitted a request signal.