JPH05137173A - Lamp recovery system for system cordless telephone - Google Patents

Abstract

PURPOSE:To surely transmit a lamp control signal to a slave machine even in the case that the lamp control signal to be transmitted is generated but cannot be transmitted from the exchange side to the slave machine in the lamp recovery system for multizone system cordless telephone where the exchange and the slave machine communicate with each other by radio. CONSTITUTION:An exchange 1 is provided with a storage means 5a of lamp control information which controls the indication state of a control lamp provided in a slave machine 6, a means 2 which sends the lamp control signal to the slave machine 6 in response to generation of this lamp control information, and a means 5b where the flag which is set at the time of a failure of sending from the lamp control signal sending means 2 and indicates incompletion of sending of the lamp control signal is stored. At the time of originating/ terminating control for the slave machine whose flag is set, the lamp control signal sending means 2 is driven to send the lamp control signal to this slave machine 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lamp recovery system for a multi-zone system cordless telephone.

[0002] In a multi-zone system cordless telephone, various services are provided, and a signal for controlling a control lamp corresponding to various services provided in a slave is provided from the exchange side in order to notify the occurrence of the service. Sending out. The display state of the control lamp allows the user who holds the slave unit to know the occurrence of the service and the like, and the corresponding operation, for example, to call the exchange and receive the service. However, in the system cordless telephone, communication is performed wirelessly between the exchange and the handset, but the number of control channels and call channels for radio is limited. There is a case that the control lamp signal cannot be notified to, and the solution is desired.

[0003]

2. Description of the Related Art FIG. 10 is an explanatory view of a conventional example. Figure 10
In the above, EX is a multi-zone type system cordless telephone switchboard, BS is a connection device, and PS is a slave unit. The handset can be used in either mobile or fixed form. In the case of a premises system, for example, each floor of the building is assigned to a different zone, one connection device (BS) is provided, the BS is connected to the exchange EX by a line, and the PS is wirelessly connected to the PS. Communication is carried out. The exchange EX controls the requested exchange connection and the start and disconnection of communication with the connection device BS for each slave PS.

The exchange EX notifies the slave PS of the control states of various services provided. In the example of FIG.
When a mail addressed to a specific handset PS arrives at the mail device provided in the exchange EX, the arrival of this mail is notified to the corresponding handset PS, and when this mail is accessed from the handset PS, the This is an example of a service that sends an email. In addition, various notifications such as notification of time-out in the case of camp on are given.

The slave unit PS is provided with a plurality of control lamps for receiving and displaying a lamp control signal for notifying the service status from the exchange EX and function keys corresponding to the respective control lamps individually corresponding to the services. Has been. The control lamp signal indicating the incoming mail is notified from the exchange EX, the corresponding lamp of the handset PS lights up (or blinks), and when the handset operates the function key corresponding to the lamp, the handset PS switches to the exchange. It is possible to issue a request to the EX and retrieve a mail (voice mail, etc.) addressed to the user from the mail device.

When a situation in which the control lamp is sent out, such as when a mail to the child machine arrives from the exchange EX, the operation of transmitting the lamp control signal is performed as follows.
The exchange EX calls the corresponding slave unit PS through a wireless control channel (referred to as Cch) to the corresponding slave unit PS, designates the communication channel (Sch), and receives a response from the slave unit through the control channel, the designation. The lamp control signal is modulated by the modem by the communication channel (Sch) and transmitted. The handset PS receives the designated Sch, demodulates it by the modem, and turns on (blinks) the built-in control lamp.

[0007]

In the above-mentioned conventional method, when a control lamp signal to be transmitted to the slave unit is generated on the exchange side, it is necessary to immediately transmit the signal to the slave unit. However, since the wireless channel used for communication between the exchange and the slaves is limited to a fixed number of both the control channel (Cch) and the communication channel (Sch), a large capacity system that accommodates a large number of slaves. In cordless phones, none of them may have a free channel. Even if there is a channel, the lamp control signal may not be received due to the power being turned off on the slave side.

In any of these cases, since the lamp control signal is not received by the slave unit, there is a problem that the service cannot be provided to the user of the slave unit. Further, when the power of the slave unit is turned off after receiving the control lamp signal from the exchange on the slave unit side, all the contents of the memory holding the control information for lighting the lamp of the slave unit are erased. After this, when the power is turned on in the slave unit, the control lamp is not turned on at all, and the exchange side cannot know that it is on after the power is turned off. Therefore, the control lamp signal is not sent from the exchange side, There is a problem that the user of the child device cannot receive the service.

According to the present invention, even when the exchange side cannot transmit to the slave unit when the lamp control signal to be transmitted is generated, the transmission to the slave unit is surely possible and the power source is turned off on the slave unit side. It is an object of the present invention to provide a lamp recovery method for a system cordless telephone that can receive a lamp control signal when the power is turned on after the operation.

[0010]

FIG. 1 is a block diagram showing the first principle of the present invention, and FIG. 2 is a block diagram showing the second principle of the present invention. In FIG. 1, 1 is an exchange, 2 is a lamp control sending means for sending a signal for controlling the lamp display of a slave, 3 is a lamp sending incomplete flag setting means, 4 is an outgoing / incoming call control section for controlling outgoing / incoming calls. , 5a is a lamp control information storage unit provided corresponding to each slave unit, 5b is a lamp sending incomplete flag,
Reference numeral 6 represents a child device. In addition, in FIG. 2, reference numerals 1 to 6 respectively represent respective parts or means having the same reference numerals in FIG.
Reference numeral 7 is a power-on notification means provided in the slave unit 6, and 8 is a power-on notification detection means provided in the exchange.

The present invention pays attention to the fact that a call channel (Sch) is always established when an outgoing / incoming call is established. When the lamp control signal cannot be sent to the slave unit, the sending of the lamp control signal of the slave unit is incomplete. The state is stored and the lamp control information is sent out when an incoming or outgoing call occurs.

[0012]

In FIG. 1, the exchange 1 requests a service for the slave unit 6, and lamp control information for the slave unit 6 is generated and stored in the lamp control information storage unit 5a.
At this time, the lamp control transmission means 2 is activated. When activated, the communication channel (Sch) is specified by the control channel (Cch) to notify the handset 6, but if there is no free control channel or communication channel, or if there is an empty communication channel, the communication channel is specified by the control channel. When no response is returned from the handset 6 when the transmission is performed, the lamp sending incomplete flag setting means 3 is driven. The lamp delivery incomplete flag setting means 3 is a lamp delivery incomplete flag 5 corresponding to the lamp control information storage unit 5a of the corresponding slave unit.
b is set (turned on).

After that, when an incoming call to or an outgoing call from the handset 6 occurs, a call channel is designated in the call originating / terminating control section 4. At this time, the outgoing / incoming call control unit 4 refers to the lamp sending incompletion flag 5b to identify whether the flag of the slave unit for outgoing / incoming calls is set, and if so, activates the lamp control sending means 2.
The lamp control information sending means 2 sends the content of the corresponding lamp control information storage section 5a to the handset 6 through the designated communication channel. In the call originating / receiving operation, the handset 6 which has received the lamp control information can receive the service by knowing the notification by lighting (blinking) the lamp corresponding to the control information.

In the configuration of FIG. 2, when the user of the child device 6 turns on the power after the child device 6 is turned off, the power-on notifying means 7 of the child device 6 is activated and the exchange 1 To the control channel. When the exchange 1 detects this notification by the power-on notification detecting means 8, it activates the lamp sending incomplete flag setting means 3. The lamp-sending incomplete flag setting means 3 identifies the slave unit that has received this notification, and sets the lamp-sending incomplete flag 5b corresponding to the lamp control information storage unit 5a for the slave unit.

After that, the same operation as in FIG. 1 described above is performed, and when the incoming / outgoing call is made to the slave unit 6, the lamp control information in which the lamp sending incomplete flag 5b of the slave unit 6 is set. Will be sent.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 3 is a system configuration diagram in which the present invention is implemented,
FIG. 4 is a configuration diagram of the connection device control unit and the connection device, FIG. 5 is a configuration diagram of the slave unit, FIG. 6 is an operation sequence of the first embodiment, and FIG. A sequence, FIG. 8 is a processing flow of an exchange executed in transmission of lamp control information at the time of sending / receiving, and FIG. 9 is a processing flow in the exchange of the second embodiment.

In FIG. 3, 20 is a network (N
W), 21 is a common control device (CC), 22 is a main storage device (MM), 23 is a connection device control unit (BSC), 24 is a connection device (BS), and 25 is a child device (PS). In this example, 20 to 23 form a private branch exchange (PBX).

The common control device 21 controls connection of incoming / outgoing calls between the slave 25 and other slaves and external lines (connected to other private branch exchanges and public networks), and also the lamp of the slave according to the present invention. Performs control management of control information. Therefore, the main memory 22
Is provided with a table 220 for the lamp control information of the child device (a description of the table 220 will be given later). The connection device control unit 23 receives control signals for the connection device 24 and the slave device 25 from the common control device 21 and transmits them, and receives control signals from the slave device 25 and the connection device 24 and supplies them to the common control device 21. I do.

The internal block configuration of the connection device control unit 23 is shown in FIG. Shown in. A. of FIG. , The INF 230 is a common control device (CC21 in FIG. 3) and a line termination device (CT)
The CT 231 is an interface circuit that sends and receives control signals to and from the H. 231, and the CT 231 is a driver (D) 232 and a receiver (R) that are connected to the connection device (BS24 in FIG. 3) by a line.
The control signal is connected to the common control device via the INF 230, and the communication signal (voice, etc.) is transmitted to and received from the network (NW 20 in FIG. 3).

FIG. 4 is a block diagram of the connection device 24 of FIG.
B. Shown in. B. of FIG. Receiver (R) 240, driver (D) 241 of the connection device control unit 23,
It is connected to a receiver via a line, transmits and receives control signals and communication signals, and the line terminator (CT) 242 is connected to a radio unit (RF) 246 via a decoder (DC) 244 and a coder (CD) 245. , Is connected to a wireless unit (RF) 246 in the form of a digital signal, and the wireless unit 246 wirelessly communicates with a slave unit. Also, the modem unit (MD) 247
Is connected to the radio unit 246 and has a function of modulating / demodulating a control signal. The control signal transmitted to the slave unit is the control unit (CTL) 24.
The control signal received from the control unit 3 is supplied to the control unit 243. The control unit 243 controls the CT 242 and the wireless unit 246. The control lamp signal is supplied from the common control device CC of the exchange, modulated by the modem section 247, and transmitted from the radio section 246 after the designated communication channel is established with the slave.

FIG. 5 is a block diagram of the slave unit. Handset (PS)
Is wirelessly connected to the connection device 24 on the exchange side by the wireless interface 250, and the call signal is transmitted by the call control unit 2.
Through 51, the transmitter (T) 257 and the receiver (R) 258
Is sent and received. The control unit (CTL) 253 controls the wireless interface and transmits / receives a control signal via a call channel via the modem (MD) 252 provided in the call control unit 251.

The lamp control signal sent from the exchange side is
Received by CTL 253 from the modem (MD) 252,
The lamp is stored in the internal memory 254 and the designated one of the plurality of lamps (L) 256 is turned on (or blinks).
Let The key (K) 255 is a numeric key for dialing,
It consists of function keys corresponding to the service. Further, the control unit (CTL) 253 has a speaker / sounder (SP / SD) 25 for generating a ringer when an incoming call is made.
9 and a display unit (DSP) 260 for displaying characters are connected. The power source (BT) 252 supplies power to each unit inside the slave unit.

An embodiment executed by the system configuration and hardware configuration of FIGS. 3 to 5 will be described. Figure 6
Shows the operation sequence of the first embodiment, and corresponds to the first principle of the present invention shown in FIG. 1 above, and lamp recovery is performed when a call is made from the slave unit when the lamp control information cannot be sent from the exchange. Is an example in which

In FIG. 6, the "exchanger" is 20-of FIG.
23, "BS" and "PS" correspond to the connection device 24 and the child device 25 of FIG. 3, respectively. The switching channel is designated by the exchange to send the lamp control signal (sometimes called the lamp order) when the state of changing the lamp display of the child machine from the exchange occurs (such as when mail arrives). Then, the control for calling the child machine (PS) is performed. This Sch designation is transmitted from the connection device (BS) to the child device (PS) via the control channel (a in FIG. 6).
On the other hand, if there is no response from the PS and the wireless channel is not established (there is no response even if a plurality of calls are made), the exchange sets the lamp sending incomplete flag (b in FIG. 6). This flag is set in the table 220 provided in the main memory (MM) 22 of the PBX shown in FIG.

Referring to FIG. 3, the contents of a portion of table 220 are shown enlarged. This table is assigned to one subscriber (slave unit), and a table having the same configuration is provided for each slave unit. That is, the head address of the table 220 is assigned to the subscriber of one slave unit, and the lamp control information corresponding to a plurality of lamp numbers (indicated by LNO) # 0 to #n included in this slave unit is sequentially stored. Has been done.

The content is information P representing a lamp pattern (displayed by LPTN) for each of the lamp numbers # 0 to #n.
₀ , P ₁ , P _2, etc. are stored. The meaning of this lamp pattern is that P ₀ indicates lamp extinction, P ₁ indicates continuous lighting of the lamp, and P ₂ indicates blinking of a specific cycle (for example, 240 INT). For each of these lamp patterns, the storage position of the above-mentioned lamp transmission incompletion flag is provided, "1" is set to the flag corresponding to the lamp number of the transmission incompletion, and otherwise "0" is set in advance. It is set.
It is not delivered when all the lamps have the lamp pattern P ₀ .

Returning to the explanation of FIG. 6, when a call is made from the PS after the lamp sending incomplete flag is set,
When a call is detected by the BS and transmitted to the exchange (c in FIG. 6), the exchange notifies the BS that the call can be made (same as d).
The BS designates the communication channel (Sch) to the PS by the control channel (Cch) (the same e). On the other hand, PS
When the answer is to confirm the Sch (same f), the exchange refers to the table 220 of FIG. 3 for the subscriber number of the calling slave. Table 22 of the cordless handset called at this time
Lamp sending incomplete flag is set to 0 (state of "1")
If so, the lamp order (lamp control information) is transmitted (the lamp number and the lamp pattern LPTN in which the flag of the table in FIG. 3 is “1” is transmitted), and it is transmitted from the BS via the modem via the Sch. (G in FIG. 6).
It should be noted that upon transmission, all lamp sending incomplete flags are reset (set to "0").

When the slave unit receives this, it stores it in the memory (254 in FIG. 5) and displays the corresponding lamp (256 in FIG. 5) in the designated pattern. By seeing this, the PS user can know what kind of service has been started. After this, the dial tone (D
T) is sent (same h), and the PS sends a dial signal indicating the other party (same i).

FIG. 7 shows an operation sequence when the lamp control information that has not been sent is sent when an incoming call arrives. In the case of FIG. 6 described above, the lamp control information, which has not been transmitted when the call is transmitted from the slave unit, is transmitted to perform the recovery, whereas in the case of FIG. 7, it is performed at the time of the incoming operation to the slave unit.

When an incoming call to the PS occurs as shown in FIG. 7 after the lamp sending incompletion flag is set in FIG. 6 and before the call is originated from the PS, the exchange switches to the PS.
The Sch designation is sent to. This is received by PS and Sc
h When the confirmation response is returned, the BS receives it and Sch
Notify the establishment.

When the exchange sends the ringer pattern (call signal pattern) to the PS through the BS, the speaker / sounder (SP / SD in FIG. 5) of the PS that receives the ringer causes a ringer. The exchange refers to the above-mentioned table (220 in FIG. 3) corresponding to the destination slave unit and, if the lamp transmission incomplete flag is set, transmits the lamp order (lamp control information). The slave unit stores this in the memory and displays the corresponding lamp in a specified pattern. After that, the call is started by pressing the call key to answer the call.

FIG. 8 is a processing flow of the exchange executed in the transmission of the lamp control information at the time of making / receiving a call shown in FIGS. 6 and 7. As shown in the figure, the outgoing / incoming Sch
Is established, the variable i representing the lamp number is set to 0 (see FIG. 8).
No. 80), the transmission incompletion flag of lamp #i (see table 220 in FIG. 3) is determined (step 81), and when it is “1”, the lamp order (lamp control information) of lamp # 1 is transmitted to PS. The processing is performed (82), and if it is "0", the transmission is not performed. Thereafter, i = i + 1 is set and the same process is sequentially performed until i = n + 1 (steps 83 and 84), and all the lamp orders to be transmitted are transmitted.

Next, FIG. 9 shows a processing flow in the exchange of the second embodiment. In this FIG. 9, which corresponds to the second principle shown in FIG. 2 above, after the content of the memory (254 in FIG. 5) of the child device is erased by turning off the power of the child device, the power is turned on in the child device. This is the processing flow performed when

On the slave unit (PS) side, when the power is turned on, when a power on (POW on) notification is transmitted via the control channel (or call channel Sch), the exchange receives this and the processing starts. To be done. First set the variable i to 0
Set to (90 in FIG. 9), and referring to the table (220 in FIG. 3) for the slave unit that stores the lamp control information, the LPTN (lamp pattern) of the lamp #i is P ₀ (extinction).
If it is not P ₀ , the transmission incompletion flag of the lamp #i is set to “1” (92), i is set to i + 1 (93), and the same process is performed. Repeat until #n is reached.

In this way, when the power supply of the slave unit is turned on, a transmission incomplete flag is set in the table 220 for the lamp control information to be transmitted to the slave unit. After this,
When an outgoing call operation or an incoming call operation from this cordless handset is performed,
By the lamp recovery operation at the time of outgoing call shown in FIG. 6 or the lamp recovery operation at the time of incoming call shown in FIG. 7, the lamp control information is transmitted to the slave unit and the control lamp of the slave unit can be driven.

[0036]

According to the present invention, in the system cordless telephone, even when the lamp control information cannot be transmitted from the exchange, the lamp control information can be transmitted at the time of calling from the handset or when receiving the call to the handset. it can. In addition, even if the handset turns off the power and the lighting state of the control lamp is erased, lamp recovery can be performed at the time of making / receiving a call after turning on the power.

[Brief description of drawings]

FIG. 1 is a first principle configuration diagram of the present invention.

FIG. 2 is a second principle configuration diagram of the present invention.

FIG. 3 is a system configuration diagram in which the present invention is implemented.

FIG. 4 is a configuration diagram of a connection device control unit and a connection device.

FIG. 5 is a configuration diagram of a child device.

FIG. 6 is an operation sequence of the first embodiment.

FIG. 7 is an operation sequence in the case of transmitting untransmitted lamp control information when receiving a call.

FIG. 8 is a processing flow of an exchange executed when transmitting lamp control information at the time of making / receiving a call.

FIG. 9 is a processing flow in the exchange of the second embodiment.

FIG. 10 is an explanatory diagram of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Switchboard 2 Lamp control sending means 3 Lamp sending incomplete flag setting means 4 Originating / incoming call control section 5a Lamp control information storage section 5b Lamp sending incomplete flag 6 Slave unit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yukio Kobayashi, Yukio Kobayashi 1015 Kamiodanaka, Nakahara-ku, Kawasaki, Kanagawa, Fujitsu Kansai Communication Systems Co., Ltd. Communication System Co., Ltd.

Claims (2)

[Claims] 1. In a multi-zone type system cordless telephone in which a switch and a cordless handset communicate wirelessly, the switch has a storage means for storing lamp control information for controlling a display state of a control lamp provided in the cordless handset. Means for sending a ramp control signal to the slave unit in response to the generation of the lamp control information, and means for storing a flag indicating that the lamp control signal is incomplete when the sending by the lamp control signal sending means is unsuccessful A lamp recovery signal for a system cordless telephone, characterized in that when a call is transmitted / received to / from a cordless handset with the flag set, a lamp control signal is driven to transmit a lamp control signal to the cordless handset. method. 2. In a multi-zone type system cordless telephone in which a switch and a slave communicate wirelessly, the switch has a storage means for control lamp information for controlling a display state of a control lamp provided in the slave and a slave. A transmission signal that is set when the control lamp information to be notified is stored, by referring to the control lamp information of the corresponding slave unit by the detection of the detection means. It is characterized in that it comprises means for storing a control flag, and when the outgoing / incoming control to the slave set with the flag is performed, the lamp control sending means is driven to send the lamp control signal to the slave. System Cordless phone lamp recovery method.