JPH0522385A - Radio telephone set - Google Patents

Abstract

PURPOSE:To generate a simulated howler tone used to urge the user to return a handset to a main body by using a sounder or the like provided to a main body used for producing a call tone at the arrival of a call so as to sound in a frequency other than that of the call tone at the arrival of the call in the case of the state of off-hook standby. CONSTITUTION:A radio telephone set 2 connecting to a master set in a radio wave consists of a radio telephone set main body and a transmission reception handset 3 connecting to the main body through a curl cord. The radio telephone set 1 provided with a sounder 22 used for a call or the like is provided with a control circuit 21 detecting the state of off-hook standby and using the sounder 22 or the like based on the result of detection to send a simulated howler tone thereby urging the user for on-hook.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiotelephone device comprising a handset and a radiotelephone main body for the purpose of transmitting and receiving.

[0002]

2. Description of the Related Art Conventionally, this type of radio telephone device has been constructed as shown in FIG. In the figure, the master unit 1 is connected to the wireless telephone 2 via a wireless line and is also connected to the wired telephone line 4.

Further, the radio telephone 2 is connected to the handset 3 via a curl code, and operates as follows regarding a telephone call.

That is, the signal sent from the wired telephone line 4 is transmitted through the hybrid circuit (H) 5 to the transmitter (TX).
6 modulation input. The radio wave modulated by the transmitter 6 is sent from the transmitting antenna 7 to the wireless telephone 2.

On the other hand, the radio wave transmitted from the radio telephone 2 is received by the receiving antenna 8 and then demodulated by the receiver (RX) 9. The demodulated signal is sent to the wired telephone line 4 via the hybrid circuit 5. At this time, the synthesizer (SYN) 10 outputs a frequency corresponding to the wireless channel to the transmitter 6 and the receiver 9.

One of the outputs of the receiver 9 is input to a reception electric field detection circuit (CD) 11 where the reception electric field strength is judged.

The other output of the receiver 9 is a control circuit (CONT) as a data signal included in the received demodulated wave.
The identification code, which is input to the identification code memory (ID) 12, is collated based on the information from the identification code memory (ID) 12.

The output of the received electric field detection circuit 11 and the demodulated output of the data signal are input to the control circuit 13 and used for connection control.

Further, the control circuit 13 controls the synthesizer 10 to perform radio channel control, and controls the transmitter 6 to send a transmission data signal as a modulation input.

On the other hand, similarly, the radio telephone 2 is also provided with a receiving antenna 14 and a receiver (RX) 15, and the demodulation output is a modular connector 23 provided in the radio telephone 2,
It enters the modular connector 26 provided in the handset 3 via the curl cord 27 and is output to the handset 24 in the handset 3.

Further, the voice input from the transmitter 25 becomes the modulation input of the transmitter (TX) 16, and the transmission antenna 17
More radio waves are transmitted.

Next, the operation at the time of calling will be described with reference to the flowchart of FIG.
It will be described with reference to FIG. When the handset 3 is lifted from the wireless telephone 2 to make a call, the wireless line connection may fail due to the fact that data cannot be received between the wireless telephone 2 and the master unit 1 due to fading, for example. (Step 401).

In such a case, the handset 2 of the handset 3
4 outputs a busy tone, which serves as a warning means for the user to urge the handset off-hook (step 402). After that, when the busy tone timer times out (step 403).
(YES), the handset is in the standby state with the handset off hook (step 404).

Here, the standby state with the off-hook state is as follows. That is, in a general wired telephone, since the hook switch is directly connected to the line, the line loop of the telephone is unconditionally formed in the off-hook state, and thus the standby state cannot occur.

However, in the radiotelephone apparatus described in the present invention, it is the radiotelephone that has the hook switch and the master that forms the line, which is not in the direct connection state. In this state, the same processing as standby can be executed regardless of the state of the hook switch.

As described above, the standby state includes the on-hook state (step 407) and the off-hook state (step 40).
There are two types, 4), and normal standby refers to standby on-hook, while standby in the off-hook state is referred to as off-hook standby.

However, in this method, the busy tone cannot be heard unless the user brings the handset 3 close to his / her ear, and if the handset 3 is placed somewhere without returning it to the wireless telephone 2, the busy tone timer times out. Off-hook standby.

[0018]

As described above, in the conventional radiotelephone device, when the handset 3 is lifted from the radiotelephone body 2 to make a call, the radiotelephone line between the radiotelephone 2 and the base unit 1 is connected. If the call cannot be established, a busy tone indicating that the wireless line connection has failed is output from the handset 24 of the handset 3, and then the busy tone timer times out and the off-hook standby state is set.

However, in this case, the method for detecting the busy tone for the user is limited to the handset of the handset, and if the handset is not close to the ear, the transition to the off-hook standby state is performed without noticing the connection failure. Therefore, even if an incoming call comes in after that, there is a disadvantage that the handset must be returned to the main body once or a troublesome incoming call answering operation (step 408) such as pressing a loudspeaker key is required.

The present invention eliminates this problem, and when the above-mentioned off-hook standby state is reached, a sounder or the like provided for the main body used for the ringing tone when receiving an incoming call separates it from the ringing tone when receiving an incoming call. An object of the present invention is to provide a radiotelephone device capable of making a ringing sound and generating a pseudo howler sound for prompting the user to return the handset to the main body.

[0021]

The present invention has a master unit connected to a wired telephone line and a wireless telephone connected to the master unit via radio waves. The wireless telephone is a wireless telephone. A wireless telephone device comprising a main body and a handset for transmission / reception connected to the main body via a curl cord, and the wireless telephone side is provided with an informing means used for calling or the like. On the side, means for detecting an off-hook standby state, and means for urging the user to make an on-hook by emitting a pseudo howler sound based on the detection result of the detection means, from the notification means used at the time of calling, etc. Is provided.

[0022]

According to the present invention, when the device is in the off-hook standby state, it has a function of producing a pseudo-haul sound from the sounder or the like provided in the main body, so that the handset can be used by the user or a person around the device. It is possible to inform the user that it is out of the device, and thereby prompt the user or a person in the vicinity of the device to promptly return the device to the handset body.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a wireless telephone of a wireless telephone device according to an embodiment of the present invention. The parent device has the same configuration as that of the conventional example shown in FIG.

As shown in the figure, the wireless telephone 2
Similar to the conventional example, the receiving antenna 14 and the receiver (RX) 1
5, transmitter (TX) 16, transmission antenna 17, synthesizer (SYN) 18, identification code memory (ID) 19,
Received electric field detection circuit (CD) 20, control circuit (CONT)
21, a sounder 22, a modular connector 23, a hook switch 28, and the handset 3 is a receiver 2.
4, a transmitter 25, a modular connector 26, and a curl cord 27.

Next, the operation will be described with reference to the flowchart of FIG. When the normal handset 3 is raised to make an off-hook call (step 200), the radio wave transmitted from the transmitting antenna 17 of the wireless telephone 2 is received by the master unit (not shown), while the master unit also receives the wireless telephone 2.
Similarly, the radio waves are returned to the person, and the wireless line is connected.

However, when the wireless line connection cannot be established due to factors such as the distance between the master unit and the wireless telephone 2 being too large, or the fact that data cannot be received due to fading (step 201), the handset 24 is used. When the busy tone is output (step 202) and then the busy tone timer times out (step 203), and the off-hook standby state is entered, the control circuit 21 outputs the sounder 22.
A pseudo howler sound is output from (step 206).

Note that the sounder 22 is not exclusively used for the pseudo howler sound, but is also used for outputting the ringing sound, and it is not necessary to increase the number of circuits.

As described above, according to the present embodiment, by outputting the pseudo howler sound from the sounder 22 during the off-hook standby, the user can be prompted to return the handset 3 quickly.

[0029]

As described above, according to the present invention, in the wireless telephone device of this type, when it is in the off-hook standby state, it is used by making a pseudo howler sound by a sounder or the like provided in the main body. A person or a person around the device can be notified that the handset is detached, and can be quickly returned to the main body.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is an operation flowchart for explaining the operation of one embodiment of the present invention.

FIG. 3 is a block diagram showing the overall configuration of a conventional wireless telephone device.

FIG. 4 is an operation flowchart for explaining the operation of the conventional wireless telephone device.

[Explanation of symbols]

 1 base unit 2 wireless telephone 3 handset 4 wired telephone line 5 hybrid circuit 6,16 transmitter 7,17 transmitting antenna 8,14 receiving antenna 9,15 receiver 10,18 synthesizer 11,20 receiving electric field detection circuit 12,19 identification Code memory 13 and 21 Control circuit 22 Sounder 23 and 26 Modular connector 24 Handset 25 Transmitter 27 Curled code 28 Hook switch

Front Page Continuation (72) Inventor Fumiya Nada 21-3-1, Asahigaoka, Hino-shi, Tokyo Inside Toshiba Toshiba Communication Technology Co., Ltd.

Claims (1)

Claim: What is claimed is: 1. A wireless telephone having a master unit connected to a wired telephone line and a wireless telephone connected to the master unit via radio waves. A radiotelephone device comprising a main body and a handset for transmission / reception connected via a curl cord, and the radiotelephone side is provided with an informing means used for calling, etc. A means for detecting the off-hook standby state and means for urging the user to make an on-hook by emitting a pseudo-haul sound from the notification means used when making a call based on the detection result of the detection means. A wireless telephone device characterized by the above.