JPH0556001A - Out of zone alarm system - Google Patents

Abstract

PURPOSE:To solve a disadvantage of inconvenient speech due to an alarm tone when the speech is desired to be continued even when speech quality is somewhat poor in the radio telephone system. CONSTITUTION:When an alarm tone representing out of zone is received by a radio telephone set and the user of the radio telephone set feels the alarm tone to be offensive to the ear, the user depresses an 'F' button of an operation button section 112. A control section 101 detects an alarm tone stop command signal sent through the depression of the 'F' button. The control section 101 controls an alarm tone source 110 to stop the transmission of the alarm tone.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an out-of-range warning system in a wireless telephone system.

[0002]

2. Description of the Related Art Conventionally, in a wireless telephone system, when a wireless telephone moves away from a fixed wireless device forming a wireless line in a call state and it becomes impossible to ensure a wireless quality higher than a prescribed value, the user of the wireless telephone is informed of that fact. There is one that issues an out-of-range alarm to let the user know that the noise will increase when it is further distanced, and in that case, sound or display is used as the out-of-range alarm. In a wireless telephone in which a handset and a main body are integrally formed, since the display portion cannot be seen because the earpiece of the handset is put on the ear during a call, a sound alarm is issued.

The means for deciding whether or not to activate the out-of-range alarm is composed of means for observing the reception level and the out-of-band noise level of the wireless line used for the call and comparing them with a specified value. The means may be provided in a fixed wireless device or in a wireless telephone. The alarm sound source may be provided in the fixed wireless device or the wireless telephone.

[0004]

However, in any case, the above-mentioned sound out-of-range alarm system has a problem that it is difficult to make a phone call with an alarm sound if the user wants to continue the phone call even if the phone call quality is poor to some extent.

[0005]

According to the out-of-service alarm system of the present invention, at least one fixed wireless device connected to a fixed telephone network by a wired line and at least one wireless connected to this fixed wireless device by a wireless line. In a wireless telephone system composed of telephones, when the wireless telephone moves away from the fixed wireless device forming a wireless line in a talking state and it becomes impossible to secure a call quality higher than a predetermined value, the user of the wireless telephone is informed of that fact. In the out-of-range alarm system that sends an alarm to notify the user that the noise will increase when the distance is further away, the wireless telephone is provided with means for allowing the user of the wireless telephone to cancel the alarm. ..

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a wireless telephone according to the first embodiment of the present invention. In FIG. 1, when the wireless telephone goes away from a fixed wireless device forming a wireless line in a talking state and it becomes impossible to secure a call quality higher than a prescribed value, the user of the wireless telephone is notified of that fact, and noise is generated when the wireless telephone goes further away. An example is shown in which both the means for determining whether to activate the out-of-range alarm for notifying that the number of increases and the alarm sound source are provided in the wireless telephone.

Each unit of the wireless telephone is controlled by the control unit 101. In a normal call state, the transmitting unit 105 is in the transmitting state, and the carrier wave is modulated by the voice signal transmitted from the transmitter 108 through the signal switching unit 107 and transmitted. The receiving unit 108 is in the receiving state, sends the demodulated signal to the receiver 109 through the signal combining unit 113, and sends the signal corresponding to the received electric field to the receiving level measuring unit 102.

The control unit 101 constantly monitors the reception level measured by the reception level measuring unit 102, and when it detects that the reception level has continuously fallen below a specified value for a specified time, it controls the alarm sound source 110 to output an out-of-range alarm. Set to the sending state. The alarm sound is superimposed on the demodulated signal by the signal synthesizing unit 113, and the receiver 10
9 is delivered to the user's ear.

When the alarm sound is offensive to the user, the user presses the "F" button of the operation button unit 112, and the control unit 101 detects the alarm sound stop instruction signal sent by pressing the "F" button. Control the alarm sound source 110,
Stop sending the alarm sound.

The control signal transmission / reception unit 111 transmits / receives a control signal to / from a fixed radio device through a radio line under the control of the control unit 101.

FIG. 2 is a block diagram of a wireless telephone according to the second embodiment of the present invention, and FIG. 3 is a block diagram of a fixed wireless device according to the second embodiment of the present invention. In the second embodiment, an example will be described in which both the means for determining whether or not to activate the out-of-range alarm and the alarm sound source are provided in the fixed wireless device.

The fixed wireless device is connected to the telephone line of the fixed telephone network through the line connection unit 308. In the call state, the control unit 301 constantly monitors the reception level measured by the reception level measuring unit 302, and when it detects that the reception level has continuously fallen below the specified value for a specified time, it controls the alarm sound source 310 to output an alarm sound. State. The alarm sound is the line connection 30
The signal synthesizing unit 311 superimposes on the voice signal from the signal No. 8 and is sent to the modulation input of the transmitting unit 305 to modulate the carrier wave for transmission.

In the radio telephone, the reception unit 203 demodulates the signal in which the voice signal and the alarm sound are superimposed, and the receiver 20
It is sent to 9 and delivered to the user's ear. When the alarm sound is offensive to the ears, the user presses the “F” button of the operation button unit 211, and the control unit 201 detects the alarm sound stop instruction signal sent by pressing the “F” button and the control signal receiving unit. A predetermined control signal transmission operation is performed through 210, and the control signal is transmitted to the fixed wireless device through the signal switching unit 207 and the transmission unit 205.

This control signal is received by the receiving unit 30 of the fixed wireless device.
3 is demodulated, received by the control signal transmission / reception unit 309, and detected by the control unit 301. When the control unit 301 detects the control signal, it controls the alarm sound source 310 to stop the alarm sound transmission. As a result, the alarm sound to the user of the wireless telephone is stopped.

[0016]

As described above, according to the present invention, when a sound is used as an out-of-range alarm for a wireless telephone user, the wireless telephone user can select whether or not to stop the alarm sound, so that the communication quality is improved. It is possible to solve the inconvenience that it is difficult to make a call with an alarm sound when the user wants to continue the call even if it is bad to some extent.

[Brief description of drawings]

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

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

FIG. 3 is a block diagram of a fixed wireless device according to a second embodiment of the present invention.

[Explanation of symbols]

 101, 201, 301 Control unit 102, 302 Reception level measurement unit 103, 203, 303 Reception unit 104, 204, 304 Transmission / reception shared unit 105, 205, 305 Transmission unit 106, 206, 306 Antenna 107, 207, 307 Signal switching unit 108, 208 Transmitter 109, 209 Receiver 110, 310 Alarm sound source 111, 210, 309 Control signal transmitter / receiver 112, 211 Operation button 113, 311 Signal synthesizer

Claims (1)

[Claims] 1. A wireless telephone system comprising at least one fixed wireless device connected to a fixed telephone network by a wired line and at least one wireless telephone connected to the fixed wireless device by a wireless line, the wireless system comprising: When the telephone goes away from the fixed wireless device forming a wireless line in a call state and it becomes impossible to secure the call quality exceeding the specified value, the user of the wireless telephone is notified to that effect, and the noise increases when the telephone becomes further away. In the out-of-service alarm system for transmitting an alarm for confirmation, the wireless phone is provided with means for allowing a user of the wireless phone to cancel the alarm.