JP3057830B2 - Out of service alarm device and out of service alarm method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an out of service alarm system in a radio telephone system.

[0002]

2. Description of the Related Art Conventionally, in a radio telephone system, if a radio telephone cannot move beyond a fixed radio device forming a radio line in a talking state and cannot maintain radio quality exceeding a specified level, it informs the user of the radio telephone. In some cases, an out-of-service alarm is issued in order to notify the user that the noise increases when the user is further away. In this case, a sound or display is used as the out-of-service alarm. In the case where the handset and the main body are integrally formed in the wireless telephone, an alarm is given by sound since the earpiece is put on the handset of the handset during a call so that the display unit cannot be seen.

The means for determining whether or not to activate the out-of-range alarm is constituted by observing a reception level or an out-of-band noise level of a radio line used for a telephone call and comparing it 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 in the wireless telephone.

[0004]

However, in either case, the above-mentioned out-of-service alarm system using sound has a problem that it is difficult to make a call using an alarm sound when it is desired to continue the call even if the call quality is poor to some extent.

[0005]

The out-of-service alarm device of the present invention comprises at least one fixed wireless device connected to a fixed telephone network via a wired line and at least one fixed wireless device connected via a wireless line.
An out-of-range alarm device for one wireless telephone, wherein the wireless telephone generates an alarm during a call to notify that a predetermined call quality on the wireless line cannot be ensured, and the fixed wireless device. receiving means for receiving an audio signal from a single receiving means for outputting the alarm and the voice signal, and means for instructing the non-operation of the means for generating the alarm, the said in response to an instruction inoperative Means for inactivating the means for generating an alarm. The out-of-service-area alarm method of the present invention is an out-of-service-area alarm method in at least one fixed wireless device connected to a fixed telephone network by a wired line and at least one wireless telephone connected by a wireless line. In, an alarm is generated during a call to notify that a predetermined call quality in the wireless line cannot be ensured from the alarm generation source during a call, and a voice signal from the fixed wireless device is received,
The alarm and the voice signal are output from a single receiver, and an instruction is issued to deactivate the means for generating the alarm, and the alarm source is deactivated in response to the instruction to deactivate.

[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 a first embodiment of the present invention. In FIG. 1, when the wireless telephone moves away from a fixed wireless device forming a wireless line in a call state and it becomes impossible to secure a communication quality exceeding a specified level, the user of the wireless telephone is notified of the fact. An example is shown in which both a means for determining whether to activate an out-of-service alarm for notifying that the number increases and an alarm sound source are provided in a wireless telephone.

Each section of the wireless telephone is controlled by a control section 101. In a normal call state, the transmitting unit 105 is in a transmitting state, and modulates a carrier with an audio signal transmitted from the transmitter 108 through the signal switching unit 107 and transmits the modulated signal. The receiving unit 108 is in a receiving state, and sends out the demodulated signal to the receiver 109 through the signal combining unit 113, and sends out a 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 measurement unit 102, and when it detects that the reception level falls below the specified value continuously for a specified time, controls the alarm sound source 110 to output an out-of-service alarm. Set to sending state. The alarm sound is superimposed on the demodulated signal by the signal synthesizing unit 113 and the receiver 10
9 and delivered to the user's ear.

If the alarm sound is unpleasant, the user presses the "F" button of the operation button unit 112, and the control unit 101 detects the alarm sound stop instruction signal transmitted by pressing the "F" button. By controlling the alarm sound source 110,
Stop sending alarm sound.

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

FIG. 2 is a block diagram of a wireless telephone according to a 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 to activate the above-described out-of-service alarm and the alarm sound source are provided in the fixed wireless device.

The fixed wireless device is connected to a telephone line of a fixed telephone network through a line connection unit 308. In a call state, the control unit 301 constantly monitors the reception level measured by the reception level measurement unit 302, and controls the alarm sound source 310 to transmit an alarm sound when detecting that the reception level falls below the specified value for a specified time continuously. State. The alarm sound is output from the line connection unit 30.
The signal is superimposed on the audio signal from No. 8 by the signal synthesizing unit 311, sent to the modulation input of the transmitting unit 305, and the carrier is modulated and transmitted.

In the radio telephone, the signal in which the voice signal and the alarm sound are superimposed is demodulated by the receiving section 203, and the receiver 20
9 and delivered to the user's ear. The user presses the “F” button of the operation button unit 211 when the alarm sound is unpleasant, and the control unit 201 detects the alarm sound stop instruction signal transmitted 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 transmitted to the receiving section 30 of the fixed wireless device.
3 is received by the control signal transmission / reception section 309 and detected by the control section 301. When detecting the control signal, the control unit 301 controls the alarm sound source 310 to stop sending the alarm sound. As a result, the alarm sound to the user of the wireless telephone stops.

[0016]

As described above, according to the present invention, when a sound is used as an out-of-service alarm for a user of a wireless telephone, the user of the wireless telephone can select to stop the alarm sound. It is possible to solve the inconvenience that it is difficult to make a call with an alarm sound when it is desired to continue the call even if it is somewhat bad.

[Brief description of the 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 sharing 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 transmitting / receiving unit 112,211 Operation button unit 113,311 Signal combining unit

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-124132 (JP, A) JP-A-62-2536 (JP, A) JP-A-1-314442 (JP, A) 125037 (JP, U) Fully open sho 59-166539 (JP, U) Fully open sho 56-167653 (JP, U) Fully open flat 2-113450 (JP, U)

Claims (2)

(57) [Claims] 1. An out-of-range alarm device in at least one wireless telephone connected to at least one fixed wireless device connected to a fixed telephone network via a wired line and at least one wireless telephone connected to the fixed telephone network, wherein the wireless telephone includes the wireless line Means for generating an alarm for notifying that a predetermined call quality cannot be ensured during a call, receiving means for receiving an audio signal from the fixed wireless device, and outputting the alarm and the audio signal One receiving means for performing the operation, a means for instructing a non-operation of the alarm generating means, and a means for disabling the alarm generating means in response to the non-operation instruction. Out of service alarm. 2. An out-of-range alarm method for at least one wireless telephone connected to at least one fixed wireless device connected to a fixed telephone network via a wired line and at least one wireless telephone connected to the fixed telephone network, wherein an alarm is generated at the wireless telephone. An alarm is generated during a call to notify that a predetermined call quality in the wireless line cannot be secured from a source during a call, an audio signal from the fixed wireless device is received, and the alarm and the audio signal are set to 1 An out-of-service-area warning method, comprising outputting from two earpieces, instructing the means for generating an alarm to be inoperative, and disabling the alarm source in response to the inoperative instruction.