JP2010158037A - Wireless portable terminal device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wireless portable terminal device which allows a user to easily confirm a terminal state even during standby. <P>SOLUTION: In the wireless portable terminal device body 3, separately from an LCD display 4, an LED (light-Emitting Diode) 7 is provided for intermittently displaying a standby state in a predetermined display form during standby. The display form of the LED 7 such as e.g., a time factor such as an intermittent display term or an eyesight factor such as color, luminance or the like is varied in accordance with a state of a wireless portable terminal device during standby such as e.g., a reception electric field strength, a voltage or remaining capacity of a battery, or a kind of service in the standby state. Thus, the terminal state can be easily confirmed even during standby. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a wireless portable terminal device such as a cellular phone, a PHS, and a cordless phone, and more particularly to a display method of a standby state thereof.

  Conventionally, as shown in Patent Document 1, for example, this type of device is configured to indicate the state of the terminal with an LED (light emitting diode) provided in the wireless portable terminal device. FIG. 7 shows an embodiment of the patent, which is a cordless telephone composed of a handset 1a and a telephone main body 1b. An LED 2 is provided on the main body 1b, and a low voltage alarm and an out-of-service alarm are provided during use (during a call). The display form is changed by one display unit composed of the LEDs 2, and the priorities are given and selectively displayed.

  According to this patent, information indicating that a call is dangerous to a user, such as a low-voltage alarm or out-of-service alarm, can be displayed on one display (along with an alarm sound). However, it is not suitable for displaying the state of a device that is likely to be out of service area when waiting, such as a cordless telephone, cellular, or PHS, which has been downsized and improved in portability in recent years.

  These small wireless portable terminal devices are provided with LCDs, and information on standby is displayed. FIG. 8 shows an example of such a wireless portable terminal device. On the LCD display 4 of the wireless portable terminal device main body 3, an electric field mark 5 indicating the electric field strength at all times and a battery mark 6 indicating the remaining battery capacity when waiting. Is displayed, and the user can see and confirm this when waiting.

  However, in recent years, further miniaturization has progressed, and it has not always been easy to see the LCD display 4 while waiting. For example, it is not easy to see the LCD display 4 when it is put in a pocket, and there is a folding type in which the LCD display 4 is not always visible. Furthermore, the LCD is also small, so it cannot be seen if it is a little apart, or it is always turned off to make it visible only when some key operation is performed in order to save the power of the backlight of the LCD display 4. Confirmation was not easy.

Japanese Patent Publication No. 2-1977

  As described above, it is not easy to confirm the state of the terminal at the time of standby in the conventional apparatus. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to eliminate this problem and provide a wireless portable terminal device in which the state of the terminal can be easily confirmed even when waiting.

  The wireless portable terminal device according to the present invention includes an operation means, a first display means, a second display means provided separately from the first display means, and a transition to a standby state after the operation of the operation means. After a certain time has passed, the display of the first display means is turned off, and at least when the first display means is turned off, the first display mode is displayed in the first display mode during standby by the first wireless communication method. Control means for displaying the second display means in a second display form different from the first display form at the time of standby by a second wireless communication system different from the first wireless communication system. And

  The wireless portable terminal device of the present invention can easily check the state of the terminal even when waiting.

The external view which shows the structure of one Embodiment of this invention. The functional block diagram which shows the structure of one Embodiment of this invention. The time chart for demonstrating operation | movement of one Embodiment of this invention. The functional block diagram which shows the structure of other embodiment of this invention. The time chart for demonstrating operation | movement of other embodiment of this invention. FIG. 6 is a waveform diagram showing a modification of the pulse waveform shown in FIG. 3 or FIG. 5. The external view which shows a prior art example. The external view which shows another prior art example.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following drawings, the same symbols indicate the same or corresponding parts. FIG. 1 is an external view showing a configuration of an embodiment of a wireless portable terminal device according to the present invention, and an LED (light emitting diode) 7 is added to the configuration of a conventional wireless portable terminal device. In FIG. 1, (a) is a front view, (b) is a side view, and (c) is a plan view.

  2 and 3 are a functional block diagram showing a circuit configuration of this embodiment and a time chart for explaining the operation thereof, respectively. That is, the wireless portable terminal device of this embodiment has a GSM wireless unit (GSM) 8 and its antenna 9, and a DCS1800 wireless unit (DCS) 10 and its antenna 11, as shown in FIG. It corresponds to two radio systems (frequency bands).

  Radio waves from a base station (not shown) are demodulated by these radio units 8 and 10, and the demodulated signal is decoded into a voice signal by a signal processing unit (SIG) 12 and output from the receiver 18 as voice. The voice input from the transmitter 14 is encoded by the signal processing unit (SIG) 12 and transmitted to the base station via the radio units 8 and 10 and the antennas 9 and 11. The control unit (CONT) 13 performs connection control with the base station and various types of terminal control. The display of the LCD display 4 is controlled by a control unit (CONT) 13. The key operation unit 15 inputs a telephone number and a call operation to the control unit (CONT) 13. The output of the battery 16 is supplied to each unit, and voltage information (or remaining capacity information) detected by the battery voltage detection unit (DET) 17 is input to the control unit (CONT) 13.

  The received electric field is displayed as an electric field mark 5 on the LCD display 4. In this embodiment, a case where this is displayed on the LED 7 will be described. During standby, the received signal strength information is obtained from the outputs of the radio units 8 and 10 by the signal processing unit (SIG) 12 and input to the control unit (CONT) 13. The control unit (CONT) 13 judges the level and displays it in three stages by a bar on the LCD display 4. When there are two or three bars, the control unit (CONT) 13 drives the LED 7 as shown in FIG.

  As an example, in the case of a digital mobile phone such as the GSM system or the DCS1800 system, the average current consumption at the time of standby is about 2 mA due to intermittent reception, and the control unit (CONT) 13 / signal. The processing unit (SIG) 12 can set the current to about 2 mA, and the LCD display 4 has about 0.2 mA. On the other hand, it is necessary for the LED 7 to flow about 5 mA when it is on for visibility.

FIG. 3 shows a time chart of the signal of the line G in FIG. 2 for driving the LED 7, and in the case of two and three electric field bars, FIG. 3 (a) is assumed, and t ₁ = 100 ms and T ₁ = 2s. The time of 0 this field bars and one, and FIG. _(B), and T 2 = 4s.

Therefore, the standby total average consumption current I _{AVE (a)} in FIG.
I _{AVE (a)} = 2 mA + 2 mA + 0.2 mA + 0.1 s / 2 s × 5 mA
= 4.45mA
Compared to the case where the LED 7 is not used, it can be realized by an increase of only 0.25 mA, and the standby average average consumption current I _{AVE (b)} in FIG.
I _{AVE (b)} = 2 mA + 2 mA + 0.2 mA + 0.1 s / 4 s × 5 mA
= 4.325 mA
Which increases only by 0.125 mA.

  Here, in the case of (b), the period is lengthened (that is, the current consumption is reduced) when the received electric field is low (that is, when the electric field bar is small), the transmission output is greatly controlled and the current consumption is reduced when attempting to talk. Since it becomes larger, it reduces consumption during standby.

  The battery voltage information is displayed as a battery mark 6 on the LCD display 4. Next, a case where this is displayed on the LED 7 will be described. Also in this case, when the received electric field information is not shown, when the battery voltage is high, that is, when the battery bar is 2 or 3, FIG. 3 (a), and when the battery bar is 1 or 0, FIG. Although it is good, both information can be shown simultaneously. 3A when the received electric field and the battery voltage are both high, FIG. 3B when the received electric field is low and the battery voltage is high, and FIG. 3C when the received electric field is high and the battery voltage is low. ), When the received electric field and the battery voltage are both low, it can be shown in FIG. In the case of (c) and (d), the luminance is changed by supplying 5 mA and a half of 2.5 mA to the LED 7 alternately each time.

  Next, FIG. 4 shows a circuit configuration in the case of the embodiment using the two-color light emitting diode 7 '. In this case, the control unit (CONT) 13 controls, for example, the line G that drives green and the line R that drives red. In the simplest control, if red is allocated to the GSM system and green is allocated to the DCM 1800 system in the same manner as in FIG. 3, it is possible to simultaneously display which system the terminal is currently waiting on.

  However, it is possible to display more easily by using two colors. An example is shown in FIG. FIGS. 9A and 9B are the same as FIG. 3, but in the case of the GSM system. FIG. 6D shows the case of DCS1800 system, when there are many electric field bars, driving red and green at 2.5 mA each time twice and turning orange (lines R and G each time). When driving simultaneously, the color is orange.) When the electric field bar is small, this period is doubled as shown in FIG. Thus, it turns out that it is a DCS1800 system by taking out orange and green alternately every time.

In this case, instead of setting (a) and (b) in the figure, (e) can be set when there are many electric field bars, and (b) can be set when there are few electric field bars. FIG. 5F is a further modified example, in which the luminance is lowered with respect to FIG. 1A, but it is easy to see even at low luminance at time t ₃ = 0.2 s.

  In the above description, when the GSM system is displayed using green, and the DCS1800 system is displayed using orange and green, red may be used for other purposes (for example, low voltage warning). it can.

As shown in FIG. 5, information displayed on the LCD display 4 such as an electric field, a battery, and a system (network name) can be intuitively known by a combination of period, time, luminance, color, and the like. Obviously, these display forms can be arbitrarily modified. For example, as long as current is allowed, it may be turned on three times instead of turning on twice in (e), t ₃ = 0.3 s instead of t ₃ = 0.2 s in (f), Be free. Further, the pulse waveforms of the line G and the line R shown in FIG. 3 or FIG. 5 may have a temporally changing waveform as shown in FIGS. 6A to 6C, and the luminance may be changed. .

In addition, the user can select and set which display form is to be used by selecting a menu that is generally performed, and saves current consumption (0.25 mA in the example of FIG. 3A). to the period T ₁ may be set in the menu selection.

  In addition, since the LED 7 or the two-color light emitting diode 7 'can usually grasp the general state, the timer (not shown) in the control unit (CONT) 13 is used for a certain period of time after the operation of the key operation unit 15 or after shifting to the standby state. Thus, the LCD display 4 may be controlled to be turned off or in a low power consumption mode. In this case, since 0.2 mA consumed by the LCD display 4 can be reduced, it can be said that there is no increase in current consumption.

  Here, the low power consumption mode is, for example, one in which only a part of the fixed pictogram (for example, the antenna mark in FIG. 1) is turned on and the other is turned off, or the LCD display 4 is also turned on intermittently. .

  The LED 7 or the two-color light emitting diode 7 ′ described above is not limited to the above-described operation. That is, in addition to the above-described operation, when a call is received, green is lit in conjunction with the period of the bell sound, the battery is low voltage, and when charging is required, red can be lit continuously to provide a low voltage alarm. .

  Moreover, although the case of one LED (including the case of a two-color light emitting diode) has been described in the above-described embodiment, a plurality of LEDs may be used. However, for the purpose, it is most economical to display with one LED.

  Furthermore, in the above-described embodiment, it is possible to recognize the difference between the GSM method and the DCS1800 method as the standby state by changing the display form, that is, by changing the color. Not limited to, for example, by changing the display form, the status at the time of standby is different from the voice service and the data service, and further, the data service receives the Internet, receives the e-mail, waits for the reply of the reservation service, etc. You may make it possible to recognize the difference.

DESCRIPTION OF SYMBOLS 1a ... Handset 1b ... Telephone body 2, 7 ... LED (light emitting diode)
3 ... Wireless mobile terminal device body 4 ... LCD display 5 ... Electric field mark 6 ... Battery mark 7 '... Two-color light emitting diode 8 ... GSM wireless unit (GSM)
9, 11 ... Antenna 10 ... DCS1800 wireless unit (DCS)
12 ... Signal processor (SIG)
13. Control unit (CONT)
14 ... transmitter 15 ... key operation part 16 ... battery 17 ... battery voltage detection part (DET)
18 ... Handset

Claims (3)

Operation means;
First display means;
Second display means provided separately from the first display means;
The display of the first display means is turned off after a certain time has elapsed after the operation of the operation means or after shifting to the standby state, and at least when the first display means is off, the first wireless communication system is used for waiting. In the first display mode at the time of reception and in the second display mode different from the first display mode at the time of standby by the second wireless communication method different from the first wireless communication method, the second display means A wireless portable terminal device comprising control means for displaying.   The wireless portable terminal device according to claim 1, wherein the first display form and the second display form have different display colors.   The wireless portable terminal device according to claim 1, wherein a display cycle is different between the first display form and the second display form.

Images