JPH07298352A - Radio telephone device - Google Patents

Abstract

PURPOSE:To obtain the radio telephone device which is superior in operability and usability and can perform a calling process without inputting an opposite subscriber number even when all lines are in use and a call can not be made by another slave equipment and also reports that a line becomes free. CONSTITUTION:The radio telephone device has a master equipment 22 having a reception part 4 which receives a signal, a demultiplexing part 6 which demultiplexes the signal, a multiplexing part 5 which multiplexes signals by time division, a transmission part 3 which sends signals, a radio control part 7 which controls the said reception part 4 and transmission part 3, etc., line I/F parts 2a and 2b which close lines, and a line switching part 8 which switches connections, and >=2 slave equipments 11a, 11b, and 11c. The master equipment 22 is equipped with a storage part 18 wherein the recognition numbers of the said slave equipments 11a, 11b, and 11c and opposite party numbers are registered, a calling part 19 which performs the calling process, a sound synthesis part 20 which reports line information, etc., and a central control part 21 which controls the whole device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiotelephone device, and more particularly to a radiotelephone device having two or more slave units.

[0002]

2. Description of the Related Art In recent years, instead of using a code between a base unit and a handset of a wireless telephone device, a wireless telephone device has been used to make a telephone call by wireless. As a general configuration of a wireless telephone device, there are one in which a base unit is provided with one set of a receiving unit and a transmitting unit which are controlled by a wireless control unit, and one in which there are as many transmitting units and receiving units as the number of child devices. .

A conventional radio telephone device will be described below with reference to the drawings. FIG. 5 is a functional block diagram of a conventional wireless telephone device master unit, and FIG. 6 is a functional block diagram of a conventional wireless telephone device slave unit. Reference numeral 1 is a base unit of a wireless telephone device, 2a and 2b are line interface units (hereinafter abbreviated as line I / F units) which are connected to a fixed public line network and close the line, and 3 are slave units 11a, 11b and 11c which will be described later. In contrast, a transmitter 4 that modulates a control signal or a voice signal and transmits the modulated signal as a high frequency signal. Is a multiplexer for digitizing transmission signals to the slaves 11a, 11b, 11c described later and time-division-multiplexing into the same signal, and 6 is a time-division multiplexed signal from the slaves 11a, 11b, 11c described later. Is separated into a plurality of individual signals, and 7 is a transmitter 3, a receiver 4, and a multiplexer 5.
And a radio control unit for controlling the demultiplexing unit 6, and 8 for the demultiplexing unit 6 and the multiplexing unit 5 and the line I / F unit 2a,
A line switching unit for connecting 2b, a central control unit 9 for controlling the entire apparatus, an antenna 11a, 11b, 11c
Is a slave of the wireless telephone device. In FIG. 6, 10 is an antenna, 11 is a slave unit of a wireless telephone device, 13 is a speaker for outputting a voice signal, 14 is a microphone for inputting voice, 1
Reference numeral 5 is a key input unit for inputting commands such as execution processing, 16 is a control unit for receiving data from the key input unit 15 and control signals sent from the master unit 1, and controlling each unit. 17 is a control unit 16 It is a transmission / reception unit that modulates the control signal / voice signal sent from the device to generate a high frequency signal and demodulates the control signal / voice signal from the high frequency signal sent from the parent device 1.

The operation of the conventional radiotelephone device configured as described above will be described below. FIG. 8 is a flowchart of a call originating process of a conventional wireless telephone device, and FIG. 9 is a flowchart of an incoming call process of a conventional wireless telephone device. First, the case of performing the calling process will be described.

First, the user selects the slaves 11a, 11b, 11
When the power of c is turned on and the call button (not shown) of the key input unit 15 is pressed (S1), the control unit 16 controls the transmission / reception unit 17 to send a control signal to the master unit 1 (S2). . The base unit 1 reproduces the calling signal received by the receiving unit 4 via the antenna 10 and then sends it to the demultiplexing unit 6 so that the wireless control unit 7 decodes the control signal to decode the calling signal.
It is detected that there is a call request from a (S3).

Next, a detection signal is sent to the central control unit 9 and a confirmation signal is transmitted to the slave unit 11a using the transmitting unit 3 via the downlink time slot corresponding to the uplink time slot transmitted by the slave unit 11a. (S4). As a result, the wireless link with the handset 11a is connected (S5).

Next, the central control unit 9 refers to the operating state of the line switching unit 8 and judges whether all the lines are in use (S6). S if all lines are in use (Yes)
If the result is No, that is, if there is a vacant line to which the master unit 1 can connect, the central control unit 9 which has received the detection signal controls the line switching unit 8 to make the demultiplexing unit 6 operate. A time slot corresponding to the time slot is selected from among the plurality of lines and is connected to the line I / F unit 2a or 2b corresponding to an empty line (S7).

When the user inputs the other party's number using the key input section 15 of the handset 11a (S8), the control section 16 sends a multi-frequency signal corresponding to the inputted other party's number to the transmitting / receiving section 1
7, and transmits to the master unit via the antenna 10 (S9). The base unit 1 receives this multi-frequency signal via the antenna 10 and the receiving unit 4
Is received and sent to the line via the line I / F unit 2a or 2b, and normal conversation becomes possible (S10).

On the other hand, if S6 is Yes, that is, if all the lines to which the base unit 1 can be connected are in use, the central control unit 9 causes the wireless control unit 7 to send to the handset unit 11a via the transmission unit 3. A signal indicating that all the lines are in use (hereinafter abbreviated as a busy signal) is transmitted (S11). The user recognizes that the call cannot be made by receiving the busy signal, and presses the end button to disconnect the wireless link (S12).

Next, the case of performing the incoming call processing will be described with reference to FIG. First, when the user of the base unit 1 detects that there is an incoming call from the line (S13), the central control unit 9 notifies the remote unit 11a of the incoming call by the wireless control unit 7 to notify the incoming call.
Control and sends a control signal through the transmission unit 3 (S1
4). In the child device 11a, the control signal from the parent device 1 is transmitted to the child device 11a.
It is received by the transmission / reception unit 17 via the antenna 10 of a and input to the control unit 16 to detect that the base unit 1 has an incoming call and calls the handset unit 11a (S).
15). Since the handset 11a receives the control signal and causes the speaker 12 to emit a ringing tone (S16), the user can receive an incoming call by pressing the call button in the handset 11a (S17). The child device 11a sends a confirmation signal to the parent device 1 using the transmitting / receiving unit 17 (S18). When the base unit 1 receives the confirmation signal from the receiving unit 4, the wireless control unit 7 controls the line switching unit 8 to select a time slot from among the plurality of time slots that notifies the handset unit 11a of the incoming call, When connected to the line I / F unit 2a or 2b corresponding to the called line, the wireless links to the master unit 1 and the slave unit 11a are connected and the call state is established (S19).

[0011] Other conventional wireless telephone devices will be described below.
A description will be given with reference to the drawings. FIG. 7 is a functional block diagram of another conventional wireless telephone device master unit. 3a, 3b, 3c
Is a transmitter, 4a, 4b, 4c is a receiver, 10a, 10
Since b and 10c are antennas and are the same as the conventional ones, the same reference numerals are given and description thereof is omitted. Reference numeral 12 is a base unit of a wireless telephone device having a plurality of transmitting / receiving units.

Next, the calling process will be described. Figure 10
Is a flowchart of a calling process of another conventional wireless telephone device, and is different from the above-described conventional wireless telephone device (FIG. 8) in S3 to S9. First, the base unit 12 is the receiving unit 4
antennas 10a, 10b, 10c by a, 4b, 4c
After reproducing the signal received via, the wireless controller 7 decodes the control signal and detects that there is a call request from the handset 11a (S3). Next, the detection signal is sent to the central control unit 9 and a confirmation signal is sent to the handset 11a using the sending units 3a, 3b, 3c via the down time slots corresponding to the up time slots sent by the handset 11a. Then, the wireless link to the handset 11a is connected (S4) (S5). The central control unit 9 refers to the operating state of the line switching unit 8 and determines whether all the lines are in use (S6).
If No, the process jumps to S9, and if Yes, that is, if all the lines to which the parent device 12 can be connected are in use, the central control unit 9 causes the wireless control unit 7 to transmit to the transmitting units 3a and 3a.
A signal (hereinafter referred to as a busy signal) indicating that all the lines are in use is transmitted to the handset 11a via b and 3c (S11). Next, the user recognizes that the call cannot be made, and presses the end button to disconnect the wireless link (S
12).

On the other hand, if No in S6, that is, the base unit 1
If there is an available line to which 2 can be connected, the central control unit 9 that has received the detection signal controls the line switching unit 8 to connect to the line I / F unit 2a or 2b corresponding to the available line (S).
20).

Next, the case of performing the incoming call processing will be described. FIG. 11 is a flowchart of an incoming call process of another conventional wireless telephone device, which is different from the above-described conventional wireless telephone device (FIG. 9) in S19, and the master device 12 receives the confirmation signals from the receiving units 4a and 4b. , 4c, the radio control unit 9 controls the line switching unit 8 to select from the plurality of time slots with the multiplexing unit 5 a time slot that notifies the handset 11a of an incoming call, and the incoming call is received. Line I / F section 2 corresponding to the line
When it is connected to a or 2b, it operates in the same manner as the conventional wireless telephone device except that the wireless link to the master unit 12 and the slave unit 11a is connected and the mobile phone is in a call state (S21).

[0015]

However, in the above-mentioned conventional configuration, when all the lines connectable to the master unit are being used by another slave unit in response to a call from the slave unit, the central control unit is used. Controls the line switching unit and does not close the line with the line I / F unit, but simply sends a busy signal to the calling handset to notify that the line is in use. Therefore, the call cannot be made from the child device, and the user must wait for a certain time and input the other party's number again to make a call again, resulting in lack of workability and convenience. Had.

The present invention solves the above-mentioned problems of the prior art. Even if a line which can be connected to the master unit is all in use and a call cannot be made from another new slave unit, as soon as the line becomes available, the other party can re-establish the call. It is possible to provide a wireless telephone device that can automatically perform call processing to a line without inputting a number and that has excellent workability and convenience for notifying a user that the line is idle. To aim.

[0017]

In order to achieve the above-mentioned object, a radiotelephone device according to the present invention detects a call request from a line switching means for detecting the usage status of a telephone line and a handset. Reception detection means, storage means for storing a signal received from the slave unit according to the outputs of the line switching means and the reception detection means, and the storage means stored in the storage means according to the output of the line switching means It is configured to include a transmitting means for transmitting to the slave and transmitting based on the signal received from the slave.

[0018]

With the above configuration, the line switching means always detects the usage status of the telephone line, and the reception detection is performed when the line switching means detects that all the telephone lines are in use. When the means detects that there is a call request from the slave, it stores the signals such as the identification number and the telephone number, which are once received from the slave, in the storage means. After that, when the line switching unit detects that an idle line has occurred, the line waiting unit calls the slave unit waiting for an idle line to notify the line status, and the storage unit is referred to and stored in the storage unit corresponding to the slave unit. Make a call to the phone number you made.

Therefore, even if all the telephone lines are in use, if the user of the child device registers the telephone number of the other party in the wireless telephone device, the wireless telephone device will receive the other party as soon as a free line is created. Since the calling process is performed on the first time, it is not necessary to perform the calling process many times.

[0020]

【Example】

(Embodiment 1) Hereinafter, a wireless telephone device according to a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a functional block diagram of a wireless telephone device master unit according to the first embodiment of the present invention. 2a and 2b are line I / F units, 3 is a transmission unit, 4 is a receiving unit, 5 is a multiplexing unit, 6 is a demultiplexing unit, 7 is a radio control unit, 8 is a line switching unit, 10 is an antenna, 11
Reference numerals a, 11b, and 11c denote slave units, which are the same as those in the conventional example, and therefore are denoted by the same reference numerals and description thereof will be omitted. 18
Is a storage unit that stores the identification number of the slave unit and the telephone number input by the slave unit when a call request is issued from the slave unit when all public lines connected to the master unit 22 are used. ,
Reference numeral 19 refers to the line switching state in the line switching unit 8 to refer to the storage unit 18 as soon as the line is available, and the calling process is sequentially performed from the slaves 11a, 11b, 11c previously registered for line waiting to the public line. Is a voice synthesizer for notifying the user of line information and call processing, 21 is a central controller for controlling the entire device, and 22 is a master unit of the wireless telephone device. The configuration of the child device is the same as that used in FIG.

The operation of the radiotelephone device according to the first embodiment of the present invention constructed as above will be described below. FIG. 3 is a flow chart of a calling process of the wireless telephone device according to the first embodiment of the present invention, and FIG. 4 is a flow chart of an incoming call process of the wireless telephone device according to the first embodiment of the present invention. First, the case of performing the calling process will be described.

First, when the power of the handset 11c is turned on and a call button (not shown) is pressed (S22), the control unit 16 of the handset 11c controls the transmission / reception unit 17 to send a control signal to the base unit 22. Is transmitted (S23). The master unit 22 demodulates the calling signal received via the antenna 10 by the receiving unit 4, sends it to the demultiplexing unit 6, and the wireless control unit 7 decodes the control signal in the calling signal, It is detected that there is a call request from the handset 11c (S24). After that, the central control unit 2
1 to the slave unit 11c by transmitting a detection signal to the slave unit 11c and transmitting a confirmation signal to the slave unit 11c using the transmitting unit 3 via the downlink time slot corresponding to the rising time slot transmitted by the slave unit 11c (S25). The wireless link is connected (S26). Next, the central control unit 21 refers to the line switching state in the line switching unit 8 and judges whether all public lines are in use (S27). All lines are in use (Y
es), the process proceeds to S32. If any one of them has an empty line (No), S7 to S1 of the conventional example
Calls can be made by performing the same operation as 0 (S
28-S31).

On the other hand, if Yes in S27,
That is, when all public lines to which the master unit 22 is connectable are in use, the storage unit 18 is referred to, the number of people waiting for the line to be available is counted, and a voice signal or the like corresponding to the number is counted by the voice synthesis unit 20. (S32). Next, the busy signal and voice synthesizing unit 20 is transmitted using the transmitting unit 3 via the downlink time slot corresponding to the uplink time slot transmitted by the handset 11c.
The audio signal synthesized in step S33 is transmitted (S33). Next, the master unit 2 received by the transmitting / receiving unit 17 via the antenna 10
The busy signal and the voice signal from 2 are input to the control unit 16 (S34).

The control unit 16 outputs a voice signal from the speaker 13 to notify the user of the line information such as the line being used and the number of people waiting for the line to be idle (S35), and the automatic call registration method. Is notified by the voice synthesized by the voice synthesizer 20 (S36), and a reception waiting timer (not shown) is started (S37).

Next, the control unit 16 determines whether or not the user of the child device 11c replies that he / she does not wait for a free line (S3).
8). The user of the cordless handset 11c presses the end button provided on the cordless handset 11c so that the line is not vacant (Yes
When answering s), the wireless control unit 7 releases the wireless link (S39), and if there is no response from the handset 11c even after a certain period of time, it is considered that the line is not idle (S).
41) Open the wireless link.

In step S40, when the handset unit 11c replies that the line is waiting for an available line (Yes), the control unit 16 of the handset unit 11c controls the transmission / reception unit 17 to input the control signal to the base unit 22 as the destination number. Is transmitted (S42). The base unit 22 receives this signal by the receiving unit 4, decodes it by the wireless control unit 7, and sends it to the central control unit 21. The central control unit 21 receives this signal and registers the identification number of the child device 11c and the input destination number in the storage unit 18 (S43). The user presses the end button to disconnect the wireless link while waiting for the line (S44).

Next, the case of performing the incoming call processing will be described with reference to FIG. First, the central control unit 21 of the parent device 22 refers to the switching state of the line switching unit 8 and detects that the user who was using the public line has finished the call (S4).
5) and the line I / F unit 2a or 2b corresponding to the vacant line are controlled to be in the off-hook state. Next, it is determined whether there is an incoming call from the line (S46). If Yes, the call can be made by the same operation as S7 to S10 of the conventional example (S47 to S50), and if No, the call can be made.
The central control unit 21 controls the line switching unit 8 to select one time slot from a plurality of time slots with the multiplexing unit 5, and inputs the identification number of the slave unit 11c registered in the storage unit 18 as an input. The other party's number is read (S51).

Next, the central control unit 21 controls the wireless control unit 7 to send a control signal to the handset 11c via the transmission unit 3 (S52), and at the same time, a voice synthesizing unit indicates that the public line is vacant. A voice notification is given by 20 (S53). next,
Start a reception waiting timer (not shown) (S5
3), it is determined whether there is a response from the child device 11c while the timer is running (S55). When there is a response from the child device 11c (Y
es) jumps to S58 and there is no response (No)
Determines whether a certain time has passed since the timer was started in S54 (S56). If the fixed time has not elapsed (No), the process proceeds to S55, and if the fixed time has elapsed (Yes), the identification number and the destination number of the slave 11c that has notified the line availability registered in the storage unit 18 are displayed. The information is erased (S57) and the wireless link is disconnected. Handset 1 in S55
When there is a response of 1c (Yes), the user sets the child device 11
Press the call button in the key input unit 15 of c (S58)
Then, the transmission / reception unit 17 transmits a confirmation signal to the master device 22 (S59). The central control unit 21 connects the wireless link with the slave unit 11c by the confirmation signal detected by the wireless control unit 7 of the master unit 22, and the multi-frequency signal corresponding to the destination number input by the calling unit 19 is connected to the line. I / F section 2a or 2
It is transmitted to the line via b (S60). In this way, the handset 11c becomes in a calling state like a normal wired telephone, and the handset 11c responds by responding (S61).
When the call of c is started, the base unit 22 deletes information such as the handset identification number and the destination number of the handset 11c that has notified the line availability, which is registered in the storage unit 18 (S62).

As described above, according to the first embodiment, the number of slave units 11a, 11b and 11c is increased at one communication frequency by performing the multiplexing and demultiplexing, and the calling process is automatically performed. It can be carried out.

(Embodiment 2) The radio telephone apparatus according to the second embodiment of the present invention will be briefly described below. FIG. 2 is a functional block diagram of a wireless telephone device master unit according to the second embodiment of the present invention. Reference numerals 3a, 3b and 3c are transmitters, 4a, 4b and 4c are receivers, and 10a, 10b and 10c are antennas, which are the same as those in the conventional example, and therefore the same reference numerals are given and description thereof is omitted. Reference numeral 23 denotes a plurality of transmitters 3a, 3b, 3c and a receiver 4.
It is a master unit of a wireless telephone device including a, 4b, and 4c.

With the above configuration, the second embodiment of the present invention replaces the transmitting unit 3, the receiving unit 4, the multiplexing unit 5, and the demultiplexing unit 6 of FIG. 1 according to the first embodiment. A plurality of transmitters 3a, 3b, 3c and a receiver 4 as shown in FIG.
Aside from the provision of a, 4b, and 4c, the same operation as in the first embodiment of the present invention is possible, and there is no need to perform multiplexing and demultiplexing, so a multiplexing unit 5 and a demultiplexing unit 6 are required. It is possible to automatically perform call processing with a simple configuration.

According to the present embodiment, after notifying the number of people waiting for the line, the user is allowed to select whether or not to wait for the line. However, even if this operation is omitted, the same as in the present embodiment. You can take action. Further, in the present embodiment, although the base unit 23 does not have a call function, the base unit 23 has the handset units 11a and 11a.
It is also possible to provide a call function by integrating the functions of b and 11c.

[0033]

As described above, according to the present invention,
When the call request is made from the cordless handset, the operating state of the line switching unit is referred to and the identification number of the cordless handset and the destination number entered by the key input unit of the cordless handset when all the lines are in use A storage unit for registering a call, a calling unit for performing a calling process when a line is idle, a voice synthesizing unit for notifying a slave unit of line information or a calling process, and control of the entire device With the central control unit that performs the operation, when the call request is made from the slave unit to the master unit, even if all the lines are in use, the lines are registered in the storage unit as soon as they are available. It is possible to notify that to the slave unit that has been called and automatically perform call processing, so that the user can check the time again,
As soon as the line becomes available, you do not have to enter the destination number again
This makes it possible to realize a wireless telephone device with excellent workability and convenience that can automatically make telephone calls.

[Brief description of drawings]

FIG. 1 is a functional block diagram of a wireless telephone device master unit according to a first embodiment of the present invention.

FIG. 2 is a functional block diagram of a wireless telephone device master unit according to a second embodiment of the present invention.

FIG. 3 is a flowchart of call processing of the wireless telephone device according to the first embodiment of the present invention.

FIG. 4 is a flowchart of an incoming call process of the wireless telephone device according to the first embodiment of the present invention.

FIG. 5 is a functional block diagram of a conventional wireless telephone device master unit.

FIG. 6 is a functional block diagram of a conventional wireless telephone device slave unit.

FIG. 7 is a functional block diagram of another conventional base unit of the wireless telephone device.

FIG. 8 is a flowchart of a calling process of a conventional wireless telephone device.

FIG. 9 is a flowchart of an incoming call process of a conventional wireless telephone device.

FIG. 10 is a flowchart of a calling process of another conventional wireless telephone device.

FIG. 11 is a flowchart of an incoming call process of another conventional wireless telephone device.

[Explanation of symbols]

 1, 12, 22, 23 Base unit 2a, 2b Line interface unit 3, 3a, 3b, 3c Transmission unit 4, 4a, 4b, 4c Reception unit 5 Multiplexing unit 6 Demultiplexing unit 7 Radio control unit 8 Line switching unit 9 Central control unit 10, 10a, 10b, 10c Antenna 11, 11a, 11b, 11c Slave device 13 Speaker 14 Microphone 15 Key input unit 16 Control unit 17 Transmitter / receiver unit 18 Storage unit 19 Calling unit 20 Voice synthesis unit 21 Central control unit

Claims (4)

[Claims] 1. A line switching unit for detecting the usage status of a telephone line, a reception detecting unit for detecting a call request from a slave unit, and the child unit according to outputs from the line switching unit and the reception detecting unit. Storage means for storing a signal received from the mobile device, and transmitting to the slave device stored in the storage device according to the output of the line switching means and transmitting based on the signal received from the slave device. A radiotelephone device comprising a transmitting means. 2. The radiotelephone device according to claim 1, further comprising a notifying unit for notifying the slave unit of line information. 3. A line switching means for detecting the usage status of a telephone line, a reception detecting means for detecting that there is a call request from a child device, and the child according to the outputs of the line switching means and the reception detecting means. Storage device capable of storing a plurality of signals received from the device, and a signal transmitted to the slave device stored in the storage device according to the output of the line switching device and received from the slave device. A wireless telephone device, comprising: a transmitting means for sequentially transmitting a call based on the wireless telephone. 4. A line switching means for detecting the usage status of a telephone line, a reception detecting means for detecting a call request from a handset, and a line switching means for confirming that all telephone lines are used. The storage means for storing the identification number and the telephone number received from the slave unit when the reception detection means detects the call request from the slave unit, and the line switching means detects the vacancy of the telephone line. In this case, there is provided a transmitting means for transmitting to the slave unit corresponding to the identification number stored in the storage unit and transmitting based on the telephone number stored in the storage unit corresponding to the slave unit. A wireless telephone device characterized by the above.