JPH021977Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wireless telephone capable of visually displaying a plurality of types of information in an easy-to-understand manner using a single light-emitting display.

In a wireless telephone that is connected to a master device connected to a subscriber telephone line via a wireless line to make a call, it constantly detects whether the telephone is in a communication area with respect to the master device, and also uses a drive power source as a driving power source. It is necessary to detect a decrease in the output of the built-in battery and notify the user accordingly.

Therefore, conventionally, a telephone is equipped with a pointer-type meter or the like, and the meter visually displays each of the detected information to inform the user. However, the above-mentioned meters are generally large in shape and require a large installation area, so they have the disadvantage that the installation locations are limited. Furthermore, since the above-mentioned meters have moving parts, they are mechanically susceptible to vibration. If strong vibrations are applied to the meter, the meter needle may be damaged, resulting in low component reliability.

This invention was made with attention to the above circumstances,
The purpose of this is to display three or more types of information, at least two of them in a predetermined priority order, and to display each information in a different display format on a single light-emitting display. To provide a radio telephone that can surely recognize the usage state and operation state of the telephone by displaying the information on the display, requires a small installation area, consumes little current, and can extend the life of a battery.

Hereinafter, the present invention will be described with reference to an embodiment shown in the drawings. FIG. 1 is a front view of the wireless telephone according to the same embodiment, showing a state in which a light emitting diode 2 as a light emitting indicator is installed on the front face of a main body 1b on which a handset 1a is placed. On the other hand, FIG. 2 shows the configuration of a display control section for displaying a plurality of types of information on the light emitting diode 2, in which 3 is an out-of-call detection circuit, 4 is a voltage drop detection circuit,
Reference numeral 5 indicates a dial operation detection circuit, and reference numeral 6 indicates an off-hook detection circuit.

The out-of-call detection circuit 3 detects whether or not the wireless telephone is in a callable area with respect to the parent device, and continuously detects whether or not the wireless telephone is in a callable area.
A HIGH level detection signal is generated, and this detection signal is supplied to the light emitting diode 2 via the first OR circuit 8 of the priority circuit 7, so that the light emitting diode 2 is turned on.

Further, the voltage drop detection circuit 4 constantly monitors the output voltage of the battery 9 and generates a HIGH level low voltage detection signal when this value falls below a value necessary to stably drive the wireless telephone. It is structured as follows. This low voltage detection signal causes the oscillation circuit 10 to generate a blinking signal having a predetermined repetition period,
This blinking signal is supplied to the light emitting diode 2 via the first OR circuit 8 of the priority circuit 7 to drive the light emitting diode 2 to blink.

On the other hand, off-hook detection circuit 6 detects off-hook of handset 1a, and supplies detection signals to set pulse generation circuit 11 and reset pulse generation circuit 12, respectively. The set pulse generating circuit 11 generates a pulse to set the R-S flip-flop circuit (hereinafter referred to as FF circuit) 13 when the off-hook detection signal is generated.
This is to set the FF circuit 13. The set output signal (HIGH level) of this FF circuit 13 is guided to the light emitting diode 2 via the second OR circuit 14, the inhibition circuit 15 and the first OR circuit 8 of the priority circuit 7, and the light emitting diode 2 is lit. Further, the reset pulse generating circuit 12 has a timer function and generates a pulse to reset the FF circuit 13 after a predetermined period of time has elapsed from the time when the off-hook detection signal was generated.

The dial operation detection circuit 5 detects a dial operation and generates a HIGH level signal only during the MF signal transmission period in the case of a push type, for example. Then, this signal is supplied to the light emitting diode 2 through the second OR circuit 14, prohibition circuit 15 and first OR circuit 8 of the priority circuit 7 to turn on the light emitting diode 2, and is also supplied to the FF circuit 13. This FF circuit 13 is reset. here,
The prohibition circuit 15 of the priority circuit 7 has its gate closed only during the period when the low voltage detection signal is generated by the voltage drop detection circuit 4, and the set output signal of the FF circuit 13 and the dial operation detection signal generated during this period are supplied to the light emitting diode 2. This is to prevent this from happening. That is, this prohibition circuit 15 has a function of giving priority to the display of low voltage detection information over the display of off-hook detection information and dial operation detection information. In addition, the first OR circuit 8 of the priority circuit 7
is for determining the priority order between the low voltage detection information and the out-of-call detection information, and the out-of-call detection information is displayed on the light emitting diode 2 with priority.

Incidentally, the display form of each of the detection information on the light emitting diode 2 differs depending on the signal generated from each detection circuit or its attached oscillation circuit or FF circuit. The oscillation circuit, FF circuit, etc. have a function as a display format setting circuit that defines the above display format.

The OR circuit shown at 16 in the figure is for guiding the output of the reset pulse generation circuit 12 and the detection output of the dial operation detection circuit 5 to the reset terminal R of the FF circuit 13, respectively.

Therefore, in such a configuration, when the out-of-call detection circuit 3 detects that the wireless telephone is out of the communication range with the parent device, the out-of-call detection circuit 3 emits light by the HIGH level signal output from the out-of-communication range detection circuit 3. The diode 2 lights up continuously, and as a result, it is reported that the call is not possible. Further, when the voltage drop detection circuit 4 detects that the output of the battery 9 has fallen below a predetermined value, the light emitting diode 2 blinks in response to a blinking signal generated from the oscillation circuit 10, and the above-mentioned out-of-call area display is displayed. The voltage drop is notified in a different form. Note that when the above-mentioned out-of-call range detection and voltage drop detection are performed at the same time, the first OR circuit 8 of the priority circuit 7 gives priority to the out-of-call range notification over the voltage drop notification, and the call is interrupted. Be sure to know that it is possible.
Furthermore, during the period in which the voltage drop is detected, the gate of the prohibition circuit 15 is closed, so even if an off-hook or dial operation is performed at this time, the detection information of each of these operations will not be reported. Instead, notification of voltage drop is given priority.

On the other hand, when out of communication range or when voltage drop is not detected,
For example, when the handset 1a is removed from the main body 1b in order to make a call, this operation is detected by the off-hook detection circuit 6, the FF circuit 13 is set by the set pulse generation circuit 11, and the light emitting diode 2 is turned on by the set output. . At this time, each circuit including the off-hook detection circuit 6 is operated by the battery 9. Therefore, the lighting of the light emitting diode 2 means that the wireless telephone is powered on. In other words, by performing an off-hook operation, it can be confirmed whether the wireless telephone is powered on or not. Furthermore, when the off-hook is detected, the reset pulse generating circuit 12 simultaneously starts the operation of a timer and resets the FF circuit 13 after a predetermined period of time has elapsed.
This turns off the light emitting diode 2. As a result, the display for confirming power-on is automatically turned off. When the dial is subsequently operated, a HIGH level signal is generated from the dial operation detection circuit 5 during the period in which the MF signal is generated, and the light emitting diode 2 is turned on during that period. On the other hand, during a period when the MF signal is not generated, such as a pause period, a LOW level signal is generated from the dial operation detection circuit 5.
During this time, the light emitting diode 2 is turned off. Thereafter, similarly, the light emitting diode 2 repeatedly blinks in accordance with the dial operation, making it possible to visually confirm the dial operation. Note that if the dial is operated while the power-on confirmation display is displayed, the FF circuit 13 is reset by the HIGH level signal generated from the dial operation detection circuit 5 before the output pulse of the reset pulse generation circuit 12 is introduced. As a result, the light emitting diode 2 starts displaying an immediate dial operation. Further, when a call is received, only the dial operation is not displayed, and all other display operations are the same as those when the call is made.

In this way, according to this embodiment, the out-of-call range and power supply voltage drop detection information and the power-on and dial operation information are emitted in different display formats according to a predetermined priority order. Since it is displayed on diode 2, light emitting diode 2
By using only one, each detection information and each operation information described above can be reliably and visually displayed in an easy-to-understand manner. As a result, it is possible to accurately and clearly recognize the usage status of the telephone, such as out of call range or voltage drop, and in particular, dial operations can be confirmed not only by sound but also by flashing lights at the same time, making dial operations more reliable. can be done. This effect is very effective in a wireless telephone in which the handset 1a and the main body 1b are integrated and dialing is performed with the handset 1a removed from the user's ear. Further, in this embodiment, only one light emitting diode 2 is provided as a light emitting indicator, so
The current consumption can be significantly reduced compared to the case of using a conventional pointer-type meter, etc., thereby extending the life of the battery. Furthermore, in this embodiment, since the display indicating that the power is turned on is automatically turned off after a predetermined period of time has elapsed from the off-hook detection time, the current consumption in the light emitting diode 2 can be further reduced. can. In addition, as described above, the light emitting diode 2
Since only one meter is used, there is no need for a large installation area unlike conventional meters, and as a result, the meter can be installed at a desired location without being restricted by the installation location.

Note that the present invention is not limited to the above embodiments. For example, each information display format may be displayed with different blinking cycles; for example, for out-of-call range and voltage drop display formats, one may be set to a relatively long blinking cycle, and the other may be set to a short blinking cycle. Then, short flashing can be performed during the LOW level period with a long flashing cycle, so even if out-of-communication area detection and voltage drop detection are performed at the same time, both can be notified at the same time. Further, the priority order of each piece of information can be freely set depending on the content of the information, and the priority circuit at that time may have any configuration. In addition, the type of light emitting display, the type of information to be displayed, etc. can be modified in various ways without departing from the gist of the present invention.

As detailed above, according to the present invention, a plurality of types of information are displayed on a single light-emitting display according to a predetermined priority order, and each display format is different. Therefore, it is possible to provide a radio telephone that can reliably recognize the use and operation status of the radio telephone, requires a small installation area, and can reduce current consumption and extend battery life.

[Brief explanation of the drawing]

FIG. 1 is a front view of a radio telephone according to an embodiment of the present invention, and FIG. 2 is a circuit block diagram showing the main parts of the radio telephone. 2...Light emitting diode, 3...Out-of-call detection circuit, 4...Voltage drop detection circuit, 5...Dial operation detection circuit, 6...Off-hook detection circuit, 7...
Priority circuit, 8...first OR circuit, 9...battery,
10...Oscillation circuit, 11...Set pulse generation circuit, 12...Reset pulse generation circuit, 13...
S-R flip-flop circuit (FF circuit), 14...
...Second OR circuit, 15...Prohibition circuit, 16...
OR circuit.

Claims (1)

[Claims for Utility Model Registration] (1) In a radio telephone equipped with a battery as a driving power source, a light-emitting indicator, a voltage drop detection circuit that detects when the output of the battery falls below a predetermined value; An out-of-call detection circuit that detects when the device is in an area where it is impossible to make a call, an operation information detection circuit that detects at least a dial operation or a hook operation, a voltage drop detection circuit, an out-of-call detection circuit, and an operation information detection circuit. a priority circuit that gives priority to at least two of the detection information and causes each of the detection information to be displayed on the light emitting display; and a display form of the light emitting display is different for each of the detection information. What is claimed is: 1. A wireless telephone comprising: a display format setting circuit for displaying a display mode; (2) The radio according to claim 1 of claim 1, wherein the operation information detection circuit detects, as one of the operation information, whether or not the drive power is turned on at the time of off-hook operation. telephone. (3) The scope of the utility model registration claim, characterized in that the display format setting circuit turns off the display after a predetermined period of time when the display indicating whether or not the drive power is on is continuously displayed. A wireless telephone set forth in paragraph (1).