JPH11341565A - Radio terminal equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To extend the service life of a power supply by configuring the radio terminal equipment such that an output of a control signal is stopped when a preset limit time elapses during the output of the control signal so as to limit an operating time of a ringer within a prescribed time thereby reducing power consumption. SOLUTION: An EEPROM 12 stores in advance a limit time for which a control section 9 can continuously output a control signal to a ringer circuit 10. When the control section 9 receives data denoting a call coming from a base station from a decoding section 7, the control section 9 starts outputting the control signal to the ringer circuit 10 and also reads the limit time stored in the EEPROM 12 and sets it to a timer 13. When the control section 9 sets the limit time to the timer 13, the timer 13 starts count-down and provides an output of a time-out signal to the control section 9 when the timer 13 expires. When the control section 9 receives the time-out signal from the timer 13, the control section 9 outputs a ring-off signal to the base station to stop the control signal to the ringer circuit 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless terminal device, and more particularly to a wireless terminal device capable of reducing power consumption and extending the life of a power supply.

[0002]

2. Description of the Related Art A radio terminal device is connected to a base station by radio and connected to a telephone by wire, so that a wired telephone can be used in a radio system. A telephone connected to the wireless terminal device can talk with a mobile terminal or a telephone connected to another wireless terminal.

First, a conventional wireless terminal device will be described with reference to FIG. FIG. 3 is a configuration block diagram of a conventional wireless terminal device. As shown in FIG. 3, a conventional wireless terminal device is broadly divided into a wireless unit 1 for transmitting and receiving wireless signals.
And a baseband unit for performing modulation / demodulation and data encoding / decoding, and a telephone interface unit for connecting the telephone to the baseband unit.

[0004] Further, a baseband section includes a modulation section 2 for modulating a transmission signal to a base station, and an encoding section 3 for performing encoding.
An A / D converter 4 for converting an audio signal into a digital signal, a demodulator 6 for demodulating a signal received from a base station,
The telephone interface unit includes a decoding unit 7 for decoding, a D / A conversion unit 8 for converting digital data into a voice signal, and a control unit 9 for controlling ringing tone output.
It comprises a conversion circuit 5 for mutually converting between a two-wire signal and a four-wire signal, a ringer circuit 10 for outputting a signal for ringing a ringer, and a switch 11 for switching the connection between the telephone and the conversion circuit 5 or the ringer circuit 10. ing.

[0005] The basic operation of the conventional wireless terminal device having the above configuration will be described. During a call, switch 11 is set to A
The voice from the telephone is input to the conversion circuit 5 via a two-wire signal line, and is converted into a four-wire signal in the conversion circuit 5. Then, the transmission signal is converted into digital data by the A / D converter 4, encoded by the encoder 3, modulated by the modulator 2, and transmitted from the radio unit 1.

The reception signal received by the radio unit 1 is demodulated by a demodulation unit 6, decoded by a decoding unit 7, converted into an audio signal by a D / A conversion unit 8, and converted by a conversion circuit 5 and a switch It is output to the telephone as a voice via the terminal 11.

Here, a calling operation in a conventional wireless terminal device will be described with reference to FIG. If the received data decoded by the decoding unit 7 is data (call data) indicating a call from the base station, the decoding unit 7 sends the call data to the control unit 9, and the control unit 9 A control signal for operating the ringer circuit 10 is output, and the switch 11 is switched to the B side.

The ringer circuit 10 usually has a power supply of about 100 V DC, and outputs a pulse signal (square wave signal) of about 70 Vrms and about 20 Hz in order to ring a ringer provided in the telephone. The ringer circuit 10 outputs a pulse signal while receiving a control signal from the control unit 9.

The pulse signal output from the ringer circuit 10 is transmitted via a switch 11 to a ringer (not shown) of the telephone.
, The ringer sounds and a ringing tone is output.

[0010]

However, in the above-mentioned conventional radio terminal device, when a call is received from the base station, the control unit continues to output a control signal to the ringer circuit until the call is stopped, and the ringer is accordingly transmitted. Since the circuit continues to output the pulse signal, if the calling is continued for a long time, there is a problem that the power consumption increases and the life of the power supply is shortened.

The present invention has been made in view of the above circumstances, and limits the operating time of a ringer circuit to a predetermined time.
An object of the present invention is to provide a wireless terminal device that can reduce power consumption and extend the life of a power supply.

[0012]

According to a first aspect of the present invention, there is provided a communication system comprising: a base station connected to a base station via a wireless line; a telephone set connected to a telephone line; A ringer circuit for outputting a pulse signal to be sounded,
A control unit that outputs a control signal for driving the ringer circuit when a call signal from the base station is received, wherein the control unit is preset during output of the control signal. When the time limit has elapsed, the output of the control signal is stopped, and the time for continuously outputting the control signal is set to at most the time limit. And power consumption can be reduced.

According to a second aspect of the present invention for solving the problems of the prior art, a base station is connected by a wireless line, a telephone is connected by a wired line, and a pulse signal for sounding a ringer of the telephone is output. A wireless terminal device comprising: a ringer circuit that performs a ringing operation; and a control unit that outputs a control signal that drives the ringer circuit when receiving a call signal from the base station. And a timer that outputs a time-up signal to the control unit when a time-out is measured by measuring a time limit set by the control unit, and the control unit receives the calling signal, To start the control signal, read the time limit from the memory, set the timer, start the timer, and output a time-up signal from the timer. It is characterized by being a control unit that stops the output of the control signal when the power is input, and the time for continuously outputting the control signal is set to a maximum time limit stored in the memory at the maximum, and a large amount of power is , The driving time of the ringer circuit consuming power can be limited, and power consumption can be reduced.

[0014]

Embodiments of the present invention will be described with reference to the drawings. The wireless terminal device (this device) according to the embodiment of the present invention restricts the time for continuously operating the ringer circuit consuming a large amount of power to be within a certain time, thereby preventing unnecessary operation for a long time. Power consumption can be reduced.

First, the configuration of the present apparatus will be described with reference to FIG. FIG. 1 is a configuration block diagram of the present apparatus.
Parts having the same configuration as in FIG. 3 are described with the same reference numerals. As shown in FIG. 1, this device includes a radio unit 1, a modulation unit 2, an encoding unit 3, an A / D conversion unit 4, a conversion circuit 5,
, A demodulator 6, a decoder 7, a D / A converter 8, a controller 9, a ringer circuit 10, and a switch 11, which are connected to the telephone via the switch 11. .
Further, as a feature of this device, the EE connected to the control unit 9
A PROM 12 and a timer 13 are provided. The operation of the control unit 9 is partially different from the conventional operation. The basic operation involved in a call in this device is the same as that of a conventional wireless terminal device.

Next, the features of the present apparatus will be specifically described. In the EEPROM 12 of this device, the control unit 9
The time limit for continuously outputting the control signal to the ringer circuit 10 is stored in advance. The timer 13 measures the time set by the control unit 9 and outputs a timeout signal to the control unit 9 when the set time has elapsed.

The control unit 9 includes a ringer circuit 10 as in the prior art.
A characteristic of the present apparatus is that the control signal is continuously output up to the time limit set in the EEPROM 12 at the longest.

Specifically, the control unit 9 sends data (call data) indicating a call from the base station from the decoding unit 7.
Is input, the output of the control signal to the ringer circuit 10 is started. At the same time, the time limit is read from the EEPROM 12 and the timer 13 is set. Timer 13
Starts a countdown when the time is set by the control unit 9, and when a time-out occurs, the timer 13 outputs a time-out signal to the control unit 9. Then, upon receiving the timeout signal from the timer 13, the control unit 9 outputs an end signal to the base station and stops the control signal to the ringer circuit 10.

That is, in the present apparatus, even if the calling signal from the base station continues for a long time, the control unit 9 stops outputting the control signal when the set time limit is reached, and stops the output of the ringer circuit 10. The output of the pulse signal is stopped. This allows the ringer circuit 10 to be unnecessarily long.
, The power consumption can be reduced, and the power supply can be prevented from deteriorating.

Next, the operation of the control unit 9 will be described with reference to FIG. FIG. 2 is a flowchart illustrating a process performed by the control unit 9 of the apparatus when receiving a call signal. As shown in FIG. 2, when the calling data is input from the decoding unit 7 (100), the control unit 9 starts outputting a control signal to the ringer circuit 10 (102). As a result, the ringer circuit 10 outputs a pulse signal to the ringer of the telephone, and the ringer rings to output a ringing tone.

The control unit 9 reads a preset time limit from the EEPROM 12 (104), sets a time limit in the timer 13 (106), and starts the timer 13. Then, the control unit 9 determines whether or not the input of the call data has stopped, such as when the telephone goes off-hook (110), and stops the output of the control signal when stopping (110), and performs the processing. finish.

If the input of the calling data is continued in the process 110 (No), the control unit 9
Determines whether a time-out signal has been input from the timer 13 (112), and if no time-out signal has been input, proceeds to step 110 and repeats the same processing.

When a time-out signal is input in the process 112, a termination signal for the base station is output to the encoding unit 3 (114), and the output of the control signal is stopped (116). As a result, the ringer circuit 10 stops outputting the pulse signal, and the ringer of the telephone stops ringing. The processing in the control unit 9 is performed in this manner.

According to the wireless terminal device of the embodiment of the present invention, there is provided a ringer circuit for sounding a ringer of a telephone connected to the wireless terminal device, and a control unit for outputting a control signal for driving the ringer circuit. When the control unit 9 receives a call from the base station, the control unit 9 starts outputting a control signal to the ringer circuit 10, reads the time limit stored in the EEPROM 12, sets the time limit in the timer 13, and sets the timer 13 Since the control signal is stopped when the timer 13 times out, the time for continuously outputting the control signal can be set to a preset time limit, and the ringer circuit 10 is operated unnecessarily for a long time. There is an effect that power consumption can be reduced by preventing the power consumption.

[0025]

According to the first aspect of the present invention, a ringer circuit for outputting a pulse signal for ringing a ringer of a telephone, and a control signal for driving the ringer circuit when a call signal from a base station is received. The control unit is configured to stop the output of the control signal when a preset time limit elapses during the output of the control signal. By setting the output time to the time limit, the driving time of the ringer circuit consuming a large amount of power is limited, the power consumption can be reduced, and the life of the power supply can be extended.

According to the second aspect of the present invention, a ringer circuit for outputting a pulse signal for sounding a ringer of a telephone,
A control unit that outputs a control signal for driving a ringer circuit when a call signal from a base station is received, wherein the control unit outputs a control signal to the ringer circuit when the call signal is received. Start the output of the wireless terminal device, read the time limit stored in the memory, set the timer, and stop the output of the control signal when a time-up signal is input from the timer. By limiting the continuous output time of the signal to the time limit stored in the memory, the driving time of the ringer circuit that consumes a large amount of power can be limited, the power consumption can be reduced, and the life of the power supply can be extended. There is an effect that can be done.

[Brief description of the drawings]

FIG. 1 is a configuration block diagram of a wireless terminal device (this device) according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a process performed when a call signal is received by a control unit 9 of the apparatus.

FIG. 3 is a configuration block diagram of a conventional wireless terminal device.

[Explanation of symbols]

1: Radio section, 2: Modulation section, 3: Encoding section, 4: A
/ D conversion unit, 5 conversion circuit, 6 demodulation unit, 7 decoding unit, 8 D / A conversion unit, 9 control unit, 10 ringer circuit, 11 switch, 12 EEPROM,
13. Timer

Claims (2)

[Claims] 1. A ringer circuit connected to a base station by a wireless line, connected to a telephone by a wired line, and outputs a pulse signal for sounding a ringer of the telephone, and a ringer circuit for receiving a call signal from the base station. A control unit that outputs a control signal for driving the ringer circuit, wherein the control unit is configured to output the control signal when a preset time limit has elapsed during the output of the control signal. A wireless terminal device for stopping output. 2. A ringer circuit connected to a base station by a wireless line, connected to a telephone by a wired line, and outputs a pulse signal for sounding a ringer of the telephone, and a ringing circuit received from the base station. A wireless terminal device comprising: a control unit that outputs a control signal for driving the ringer circuit; a memory that stores a preset time limit; and a time limit that measures a time limit set by the control unit. And a timer for outputting a time-up signal to the control unit. When the control unit receives the call signal, the control unit starts outputting the control signal to the ringer circuit. The control unit that reads and sets the timer and starts the timer, and when a time-up signal is input from the timer, stops the output of the control signal. Wireless terminal device according to claim Rukoto.