JPH10136459A - Communication terminal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication terminal device about which a speaker confirms the receiving intensity of a radio wave during speech and also controls a receiving state. SOLUTION: A portable telephone device 1 comprises an electric field intensity detecting circuit 4 which detects the electric field intensity of a radio wave, a reference value setting circuit 6 which sets a reference value of the electric field intensity, a 1st memory 7 which stores the reference value, a comparator circuit 9 which compares a value of electric field intensity that is detected by the circuit 4 after setting the reference value with the reference value and a notification signal generating circuit 10 which outputs a notification signal in accordance with a result that is compared by the circuit 9. With this configuration, the device 1 sets a reference value of electric field intensity and outputs a notification signal that corresponds to the degree of change of electric field intensity to the reference value.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal device such as a portable telephone device or a handheld computer which is connected to a wireless communication network and transmits and receives information signals.

[0002]

2. Description of the Related Art In recent years, in the field of information communication, portable telephones, hand-held computers and the like have been used as communication terminals of wireless communication networks. The communication terminal device includes a display unit for displaying the intensity level of the received radio wave. The user confirms this display,
The reception state of the radio wave of the communication terminal device can be known.

As shown in FIG. 7, for example, the portable telephone device includes a dial switch button section 52, a liquid crystal display section 53 for displaying a telephone number or the like in response to operation of the dial switch button section 52, and an antenna 54, for example. It has.

[0004] Then, the portable telephone device 51 receives a received signal (Received Signal St.) so that the strength of the received radio wave can be recognized.
It has a function of a rendth indicator (RSSI), and forms a reception intensity instructing unit 55 for displaying the radio wave intensity on the liquid crystal display unit 53. The reception intensity instructing unit 55 divides the received radio wave intensity level into four to five levels, and can display the radio wave intensity at the current location by changing the display mode according to the radio wave intensity level, for example. The caller has recognized the strength of the radio wave received at that location by checking the display mode of the reception strength indicating unit 55.

[0005]

By the way, in the portable telephone device 51, since the reception intensity instructing section 55 is provided on the liquid crystal display section 53 of the apparatus main body, it is possible to confirm the change of the display mode during a call. could not. For this reason, during a call, there is a problem that the user enters a place where the reception condition of radio waves is poor due to, for example, movement of the place, and the call sound is cut off.

Further, when it is desired to improve the reception condition of radio waves during a call, the change in the display mode cannot be confirmed.
The caller had to search for a place where the call sound could not be cut off based on the call sound, and had to move to, for example, a window, outside, or a wide place.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is possible to confirm the reception intensity of a radio wave during a call and to control a reception state during a call to establish a communication connection to a network. It is an object of the present invention to provide a communication terminal device that improves the communication terminal device.

[0008]

In order to solve the above-mentioned problems, a communication terminal device according to the present invention comprises: an electric field intensity detecting means for detecting an electric field intensity; and a reference value setting means for setting a reference value of the electric field intensity. Storage means for storing a reference value, comparison means for comparing the value of the electric field strength detected by the electric field strength detection means with the reference value after setting the reference value, and a notification signal according to the result of comparison by the comparison means. Notification signal generating means for outputting.

With this configuration, the communication terminal device sets a reference value of the electric field strength, and outputs a notification signal according to a change in the electric field strength with respect to the reference value.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the communication terminal device according to the present invention will be described in detail with reference to the drawings.

A portable telephone device as an embodiment of the communication terminal device is configured to set a reference value of the electric field intensity and output a notification sound corresponding to a change in the electric field intensity from the reference value. . The configuration of the mobile phone device will be described based on the operation at the time of receiving radio waves.

[0012] As shown in FIG.
An antenna 2 for transmitting / receiving a radio wave, a transmitting / receiving unit 3 for demodulating a received radio signal to a baseband, and an electric field strength detection circuit 4 for detecting an electric field strength of the radio wave, and performing signal processing on the signal demodulated by the transmitting / receiving unit 3. A signal processing unit 5; a reference value setting circuit 6 for setting a reference value of the electric field intensity detected by the electric field intensity detection circuit 4; a first memory 7 for storing the reference value; A second memory 8 for storing a value of the electric field strength detected by the electric field strength detection circuit 4 and different from the reference value; a reference value stored in the first memory 7 and a value stored in the second memory 8; , A notification signal generation circuit 10 that outputs a notification signal according to the result of comparison by the comparison circuit 9, and a signal processing unit 5.
For example, an audio signal processing unit 11 to which an audio signal output from the PC or an notification signal output from the notification signal generation circuit 10 is input, and a radio wave for causing the reference value setting circuit 6 to start setting the reference value. An operation button unit 13 having a strength confirmation button 12 and a plurality of buttons; a speaker 14 for emitting a notification sound in accordance with a sound and the notification signal; a ringer 15 for outputting a bell sound when receiving a call; and a microphone for inputting a sound 16 and a liquid crystal display section 17 for displaying a telephone number by operating a button of the operation button section 13, for example.

The liquid crystal display unit 17 of the portable telephone device 1 displays a received signal strength indication (Received Signal Strength Indicatoin).
r: RSSI) is formed. The display mode of the reception intensity instruction changes according to the electric field intensity of the radio wave. The reference value setting circuit 6, the comparison circuit 9, and the notification signal generation circuit 10 are provided in the CPU 19.

The information signal received by the portable telephone device 1 having such a configuration is input from the wireless communication network to the signal processing unit 5 via the antenna 2 and the transmission / reception unit 3. The CPU 19 analyzes this information signal and changes the display mode of the reception intensity display according to the reception state. Then, the audio signal is input from the signal processing unit 5 to the audio processing circuit 11 and is emitted as audio by the speaker 14.

On the other hand, the voice of the caller is input to the audio signal processing unit 11 via the microphone 16 and transmitted to the network via the signal processing unit 5, the transmission / reception unit 3 and the antenna 2, and a base station for controlling communication Received at. Transmission of the information signal to the other party is performed by transmission from the base station.

The transmission and reception are terminated by releasing the network. This release of the network occurs when, for example, the end button of the operation button unit 13 is operated by the caller, when the Reordertone is detected, or when the radio wave cannot be transmitted or received.

The fact that radio waves cannot be received during a call is caused by, for example, a change in location of a caller.
In order to solve this, the mobile phone device 1 performs the following processing to control the reception state of radio waves during a call.

When the radio wave intensity confirmation button 12 is pressed during a call, for example, the portable telephone device 1 issues a notification in accordance with the subsequent change in the electric field intensity based on the time when the radio wave intensity confirmation button 12 is pressed. Output sound. This will be described with reference to the flowchart shown in FIG.

In the portable telephone device 1 during a call, the CPU 19 checks the electric field strength of the radio wave as shown in step S1, and displays the electric field strength on the liquid crystal display 17 as shown in step S2 according to the electric field strength. The display mode of the received signal strength instruction is changed. Then, the CPU 19 determines in step S
As shown in FIG. 3, it is confirmed whether or not the radio wave intensity confirmation button 12 has been pressed. Here, when it is confirmed that the radio wave intensity confirmation button 12 has been pressed, as shown in step S4, the reference value setting circuit 6 of the CPU 19 sets the electric field intensity reference value by the electric field intensity detection circuit 4, The reference value is stored in the first memory 7. The reference value is set, for example, with a certain allowable range α.

Then, as shown in step S5, the CP
U <b> 19 emits a notification sound corresponding to the reference value from the speaker 15 via the audio signal processing circuit 11. Thereafter, as shown in step S6, the CPU 19 checks whether the electric field strength has changed compared to the reference value. Here, when it is recognized that the electric field strength has changed from the reference value, the CPU 19
Causes the value of the electric field strength at this time to be stored in the second memory 8 as shown in step S7.

In step S4, the reference value of the electric field intensity stored in the first memory 7 or in step S7,
The value of the electric field strength stored in the memory 8 is determined as follows.

FIG. 3A shows a change in the electric field intensity in the portable telephone device 1 caused by a caller moving from place to place. The vertical axis of FIG. 3A indicates the electric field intensity, and the horizontal axis indicates the time change. FIG. 3B shows the CPU 1
9 shows the sampling period of the electric field intensity performed by the sampling period 9. FIG. 3C shows an operation state of the radio wave intensity confirmation button 12.

For example, when the radio wave intensity confirmation button 12 is pressed as shown in FIG. 3C, the CPU 19 outputs a reference notification sound from the speaker 14 and immediately after the radio wave intensity confirmation button 12 is pressed. The reference value of the electric field strength at the sample time T1 shown in FIG. 3B is set by the reference value setting circuit 6, and this reference value is stored in the first memory 7. This reference value is set with an allowable range α. Thereafter, the CPU 19 samples the electric field intensity input to the electric field intensity detection circuit 4 at a sampling cycle shown in FIG. Then, for example, as shown in FIG.
When the electric field strength detection circuit 4 detects a value of the electric field strength that has reached or exceeded the reference value including the allowable range α at the sample time T2, the CPU 19 stores the value of the electric field strength in the second memory 8.

Thus, the reference value stored in the first memory 7 and the value stored in the second memory 8 are determined.

As described above, the reference value stored in the first memory 7 and the value of the electric field strength stored in the second memory 8 are compared by the comparison circuit 9 as shown in step S8 of FIG. And the change is obtained. Then, the notification signal generation circuit 10 outputs a notification signal according to the change. This notification signal is converted by the audio signal processing unit 11 and emitted from the speaker 14 as a notification sound.

For example, the relationship between the change in the electric field strength and the notification sound is set as shown in Table 1 below.

[0027]

[Table 1]

First, the notification sound of the reference value is expressed as "Pi-Pi-... -P
i ". And the second memory 8
When the value of the electric field strength stored in is large, “PiPi-PiPi-... -PiPi”, “PiPi”
iPi-PiPiPi -...- PiPiPi "," PiPiPiPi-PiPiPiPi-
・ ・ -PiPiPiPi '' or `` PiPiPiPiPi-PiPiPiPiPi- ・
... -A notification sound in which the generation amount of the sound "Pi" is changed, such as "-PiPiPiPiPi". On the other hand, when the value of the electric field strength stored in the second memory 8 is smaller than the reference value, "Pi--Pi--... --Pi" and "Pi
--- Pi --- ・ ・ ・ --- Pi "or" Pi ---- Pi ---- ・ ・ ・-
--- Pi "is the notification sound with the generation interval"-"of the sound" Pi "changed. The change in the notification sound enables the caller to know the reception state of the radio wave while talking.

As described above, the notification sound is output according to the change in the electric field strength, and the CPU 19 checks again at step S6 whether the electric field strength has changed from the reference value. For example, at this time, as shown in FIG. 3A, if the electric field intensity changes at the sample time T3, the CP
U19 overwrites the value of the electric field strength in the second memory 8 in step S7. At this time, the comparison circuit 9
When it is determined that the electric field strength stored in the second memory 8 is smaller than the reference value, the notification signal generation circuit 10 outputs "Pi--Pi--Pi--...・ --P
i "," Pi --- Pi --- Pi ---...--- Pi "or" Pi ---
-Pi ---- Pi ----------- Pi "is output from the speaker 14.

Further, the CPU 19 checks again at step S6 whether the electric field intensity has changed from the reference value. Here, if it is determined that the electric field strength has not changed from the reference value, as shown in step S9, the CPU
At 19, it is confirmed whether the radio wave intensity confirmation button 12 has been pressed. When confirming that the radio wave intensity confirmation button 12 has been pressed, the CPU 19 sets a reference value of the electric field intensity again in step S <b> 4, and stores the reference value in the first memory 7. Then, as described above, the CPU 19 confirms the change in the electric field strength performed after step S5 and outputs the notification sound according to the change in the electric field strength.

On the other hand, when it is confirmed in step S6 that the electric field strength stored in the second memory 8 has not changed from the reference value, and further in step S7 it is confirmed that the radio wave strength confirmation button 12 has not been pressed. As shown in step S10, the CPU 19 checks the operation of the end button and detects Reordertone. Here, when the detection of the pressing of the end button and the detection of the Reordertone are not performed, the CPU 19 checks again whether the value of the electric field strength stored in the second memory 8 has changed from the reference value in step S6. . When the end button is pressed or the Reordertone is detected in step S12, the CPU 19 performs a call termination process as shown in step S11. The call termination processing in step S11 is as follows.
It is also executed when it cannot be confirmed that the radio wave intensity confirmation button 12 has been pressed in step S3, and furthermore, when the end button is pressed or the reorder tone is detected in step S12. Here, in step S12, if the detection of the press of the end button and the detection of the Reordertone are not performed, the CPU 19 checks again whether the radio wave intensity confirmation button 12 is pressed in step S3. The processes in steps S3 and S12 are in a so-called standby state for setting a reference value.

As described above, in the mobile telephone device 1, when the radio wave intensity confirmation button 12 is pressed, the reference value of the electric field intensity is set by the reference value setting circuit 6, and according to the comparison result from the comparison circuit 9. The notification signal generation circuit 10 outputs a notification signal to the audio signal processing circuit 11 and outputs the notification signal to the audio signal processing circuit 1.
1 emits a notification sound via the speaker 14. Therefore, the caller can know the reception state of the radio wave by hearing and confirming the generation amount or generation interval of the notification sound that changes as described above from the speaker 14. Thus, the caller can control the transmission / reception state of the radio wave based on the change of the notification sound while talking.

That is, as shown in FIG. 4, when the reception state during a call is unstable, the caller 21 presses the radio wave intensity confirmation button 12 of the portable telephone device 1 so that the notification sound “Pi
-Pi -...- Pi ". Then, the caller 21 receives the call from FIG.
As shown in, when the direction of the mobile phone device 1 is changed while talking, for example, if the notification sound is “Pi--Pi--.
It is possible to know that the reception state has become worse.
Further, as shown in FIG. 6, the caller 21 changes the direction of the mobile phone device 1 while making a call, for example, “PiPi-PiPi-.
By confirming the notification sound indicating “−PiPi”, it is possible to know that the reception state is better than when the electric field strength certainty button 12 is pressed.

As described above, the portable telephone device 1 enables control of the transmission / reception state of radio waves while talking.

The portable telephone device 1 can set the reference value of the electric field strength at the start of transmission / reception of radio waves. In this case, the caller can determine the initial value of the electric field intensity without pressing the radio wave intensity confirmation button 12.

The portable telephone device 1 can also output a notification sound whose volume changes in accordance with a change in the electric field strength from the reference value. In this case, the caller can control the reception state of the radio wave based on the change in the volume of the notification sound while talking.

Further, the portable telephone device 1 can change the display mode of the liquid crystal display unit in accordance with the change in the electric field strength from the reference value. In this case, the caller can control the reception state of the radio wave based on the change in the display mode.

In addition, since the portable telephone device 1 includes a vibration generator, the vibration can be changed in accordance with a change in the electric field strength from the reference value. In this case, the caller can control the reception state of the radio wave based on the change in vibration while talking.

Further, since the portable telephone device 1 includes a light emitting section, the light intensity can be changed in accordance with a change in the electric field intensity from the reference value. In this case, the caller can control the radio wave reception state based on the change in the light intensity while talking.

Further, the portable telephone device 1 can include the electric field strength detection circuit 4 in the transmission / reception section 3.

The communication terminal device according to the present invention is not limited to the above-described embodiment, but can be applied to a communication terminal such as a handheld computer.

[0042]

The portable telephone device according to the present invention receives a radio wave during a call by setting a reference value of the electric field strength and outputting a notification signal according to a change in the electric field strength with respect to the reference value. Enable status confirmation.

Further, in this portable telephone device, since a caller during a call can control the reception state, it is possible to improve the communication connection of the network.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a mobile phone device according to an embodiment of the present invention.

FIG. 2 is a flowchart when a radio wave intensity confirmation button is pressed during a call.

FIG. 3 is a timing chart for confirming the electric field intensity.

FIG. 4 is a configuration diagram showing a state when a caller presses a radio wave intensity confirmation button.

FIG. 5 is a configuration diagram showing a situation when a caller changes the direction of the mobile phone device.

FIG. 6 is a configuration diagram illustrating a state where a caller turns the mobile phone device in a direction different from that in FIG. 5;

FIG. 7 is a configuration diagram of a conventional mobile phone device.

[Explanation of symbols]

4 electric field strength detection circuit, 6 reference value setting circuit, 7 first
Memory, 9 comparison circuit, 10 notification signal generation circuit

Claims (9)

[Claims] An electric field intensity detecting means for detecting an electric field intensity; a reference value setting means for setting a reference value of the electric field intensity; a storage means for storing the reference value; A comparison unit that compares the value of the electric field strength detected by the detection unit with the reference value; and a notification signal generation unit that outputs a notification signal according to a result of the comparison by the comparison unit. Communication terminal device. 2. The communication terminal device according to claim 1, further comprising operating means for causing said reference value setting means to start setting said reference value. 3. The apparatus according to claim 1, wherein said reference value setting means sets said reference value at the start of transmission / reception of radio waves.
The communication terminal device according to claim 1. 4. The communication terminal device according to claim 1, further comprising a notification sound output unit that outputs a notification sound according to the notification signal. 5. The communication terminal device according to claim 4, wherein the generation interval of the notification sound changes according to the notification signal. 6. The communication terminal device according to claim 4, wherein a volume of the notification sound changes according to the notification signal. 7. An electric field intensity display means for changing a display mode according to the notification signal.
The communication terminal device according to claim 1. 8. The communication terminal device according to claim 1, further comprising a vibration generating unit that changes a vibration according to the notification signal. 9. The communication terminal device according to claim 1, further comprising a light emitting unit whose light amount changes according to the notification signal.