JPH04128445U - Cordless telephones and cordless telephone mobile devices - Google Patents

Abstract

(57) [Summary] [Purpose] To enable a cordless telephone or a mobile device of a cordless telephone to accurately notify the user when the location of use is a location with poor radio wave conditions. [Configuration] A means for determining whether confirmation data is returned from the fixed device within a predetermined time after input data is sent from the mobile device to the fixed device, and a method for determining whether confirmation data has not been received by the determining device. The mobile device is equipped with an alarm means for transmitting an alarm sound to a handset.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is based on a mobile device having input means such as a handset and a numeric keypad, and A cord recorder that is equipped with a fixed device that transmits and receives information to and from the device using wireless communication. The present invention relates to mobile telephones and cordless telephones.

0002

[Conventional technology]

In the cordless phones mentioned above, the mobile device is too far away from the fixed device and the radio waves become weak. or even if it is relatively close, there may be a motor rotating nearby and the radio wave condition may be poor. When the frequency is low (which is often the case when there are harmonics of similar frequencies), noise may be present. or the sound becomes low, making it difficult to talk on the phone. Therefore, each fixed device and/or a circuit that identifies the field strength of radio waves from the other side Or, in preparation for mobile devices, an alarm sound is transmitted when the electric field strength drops below a set level. or attenuate or stop the emission of radio waves to communicate to the caller. Devices that notify you that you are out of service have been developed (for example, Japanese Patent Application Laid-Open No. 2-1841). No. 49).

0003

[Problem that the idea aims to solve]

However, the above conventional technology only identifies the electric field strength of radio waves, so Even in poor conditions, if the radio field strength is sufficient, the identification circuit will not operate and cannot be used. The user cannot be made aware that the position of use is inappropriate. This idea solves the above-mentioned inconveniences and can be used not only when the signal strength is weak but also when the signal condition is bad. Cordless electricity that can accurately identify and notify the user even if the The aim is to provide mobile telephones for telephone and cordless telephones.

0004

[Means to solve the problem]

The cordless telephone and mobile device according to this invention have an input device such as a numeric keypad on the mobile device. After the input data from the stage is sent to the fixed machine, confirmation data is received from the fixed machine within a predetermined time. A means to determine whether the confirmation data has been returned, and a determination by this means to determine whether the confirmation data has not been received. alarm means for generating an alarm signal to the handset of the mobile device when cordless telephones and mobile devices.

[0005]

[Effect]

In other words, with a cordless phone, key data is sent from the mobile device while the fixed device The system is such that confirmation data is sent back from If the signal is not returned to the mobile device, the location where the signal is being used is located in a place where the radio wave condition is poor. This system determines that the situation is incorrect and generates an alarm.

[0006]

【Example】

FIG. 1 shows the structure of a mobile device (1) in block form. The mobile device (1) of this example is A radio circuit section (2), a telephone circuit section (3), a handset section (4), and a telephone circuit section ( 3) and a numeric keypad (5) as an input means directly connected to the alarm sound generator (6). and a control section (7) including a CPU that supervises and controls each of the above sections. (8) is a fixed device, and (9) and (10) are antennas, respectively. In accordance with this invention, the CPU of the control unit (7) contains a Detects the presence or absence of confirmation data returned from the fixed device (8) in response to the key data There is a means to do so. Next, the function of the means will be explained according to the flowchart of FIG.

[0007] That is, after the user picks up the mobile device (1) and puts it in an off-hook state, When you key in the number from the numeric keypad (5) (step S-1), the control unit (7) First, set the audio so that the noise when sending the key data does not leak to the handset (4). After muting the audio system (step S-2), key input is performed via the wireless circuit section (2). The key data thus obtained is sent to the fixed device (2) side (step S-3). The data at this time is a total of 8 bits consisting of 4 bits of digit data and 4 bits indicating the number. This is the digital data of the cut. In other words, for example, if the first number the user keys in is "1", the key As data, 8 bits such as "00010001" are used for this first "1". Sent out.

[0008] After sending the first data (for example, "00010001" above), , the mobile device (1) is in a state of waiting for confirmation data from the fixed device (8), and in this embodiment Then, it will wait for a maximum of 500 milliseconds, and within this waiting period, confirmation data will be received from the fixed device (8). If it returns (step S-4), immediately unmute the audio system ( Step S-5). Then, the process returns to the step of transmitting the key data of the next number.

[0009] Also, in step S-4, from the fixed machine (8) within the waiting time of 500 milliseconds. If confirmation data is not sent, immediately activate the alarm sound generator (6). to generate an alarm (warning) sound from the handset section (4) (step S-6). At the same time, start the timer (11) in the control unit (7) (step S-7), The first key data is retransmitted (step S-8). The timer (12) in FIG. 3 is a timer that measures 500 milliseconds.

0010 Note that the confirmation data returned from the fixed device (8) is also 8 bits like the key data. This is the digital data of the cut. Further, the timer (11) started in step S-7 is set for 10 seconds in this embodiment. It is a timer.

[0011] After this second key data transmission (step S-8), the mobile device (1) is again waiting for confirmation data from the fixed device (8) (step S-9), and the Please return confirmation data (AC) from the fixed device (8) while waiting for 500 milliseconds. If so, immediately stop the warning sound (step S-10) and return the confirmation data (AC). If not, then determine whether the above timer (11) has timed out (step Step S-12) (that is, determine whether 10 seconds have passed since the timer started), If the timer is out, stop the warning sound (step S-13) and cancel the mute. (Step S-14) and release the currently connected wireless line (Step S-14). S-15). Also, if the timer does not go out in step S-12 above, that is, after 10 seconds, If not, the first key data is sent again (step S-8).

0012 As mentioned above, confirmation data must be returned for the first key data transmission. for 10 seconds (of course, this time can be adjusted by changing the timer (11) settings). (can be set arbitrarily) will repeatedly resend the relevant key data, and the warning sound will continue to be generated during that time. However, if no confirmation data is returned even after repeating this for 10 seconds, the radio wave condition at the relevant location is confirmed. The problem with this is that it cannot be easily improved, and the wireless line is freed up. As a result of this release, despite the poor radio wave condition, one wireless This eliminates problems such as lines remaining connected. FIG. 3 is a complaint correspondence diagram.

[0013] Therefore, in the cordless telephone and cordless telephone mobile device according to this invention, If you put the mobile device in an off-hook state and key in the desired destination number, you can If the device is located in an area with poor or weak radio waves, the problem will be immediately detected. The user is notified by a warning tone emitted from the handset and is instructed not to change their position. or switch off nearby electrical equipment that may be a source of noise. I can deal with it.

[0014] In the above embodiment, the case where the input means is a numeric keypad is described; Various means can be considered, such as a dial or the use of a transmitter. Also , the alarm signal is one that is emitted as an alarm sound via a handset. However, the alarm sound may be emitted by a separate public address system or by light emitting means such as LEDs. Various methods can be considered, such as issuing an alarm. Figures 1 and 3 show the other means of generation. Indicated by dotted lines.

[0015]

[Effect of the idea] As mentioned above, the cordless telephone and the cordless telephone mobile device according to this invention , not only when the signal strength is weak, but also when the signal condition is poor, provides accurate information to the user. I can let you know.

[Brief explanation of drawings]

FIG. 1 is a block configuration diagram of a cordless telephone according to this invention.

[Figure 2] Flowchart

[Figure 3] Complaint correspondence diagram

[Explanation of symbols]

(1) Mobile device (4) Handset/receiver section (5) Key (6) Alarm generating section (7) Control section

Claims (2)

[Scope of utility model registration request] 1. A cordless telephone comprising a mobile device having a handset and an input means, and a fixed device that transmits and receives information to and from the mobile device by wireless communication,
means for determining whether or not confirmation data is returned from the fixed device within a predetermined time after the input data by the input means is sent to the fixed device; A cordless telephone characterized in that a mobile device is equipped with an alarm means for generating an alarm. 2. In a mobile device of a cordless telephone that has a handset and an input means and transmits and receives information to and from a fixed device by wireless communication, the mobile device transmits input data to the fixed device and then transmits the input data to the fixed device. A cordless cordless device characterized by comprising means for determining whether or not confirmation data has been returned from the fixed device within a time, and an alarm means for generating an alarm signal when the determination means determines that the confirmation data has not been received. mobile phone.