KR100464495B1 - A cordless telephone and a operating method preparation for interruption of electric power - Google Patents

Abstract

The present invention relates to maintaining a communication in progress even if a power failure occurs during a call with a wireless handset of a wireless telephone used at home, and transmits incoming and outgoing signals connected to a CO line, and monitors and controls each function unit. A control unit that operates with line power applied through the trunk line; A voice unit connected to the control unit and transmitting a voice signal in a designated path by a control signal; A high frequency unit which is connected to the voice unit and modulates the input signal into an allocated high frequency signal for wireless transmission and demodulates the received signal to the voice unit and operates by an external power source; A power failure display unit connected to the control unit to display a power failure state when an external power source is out of power; The speakerphone unit is connected to the voice unit and transmits / receives a signal to the speakerphone under the control of a controller, thereby improving communication reliability and communicating by incoming and outgoing calls using the speakerphone even when external power is not supplied, such as a power failure. There is a convenient effect to use.

Description

A cordless phone and its operation in preparation for power outages {A CORDLESS TELEPHONE AND A OPERATING METHOD PREPARATION FOR INTERRUPTION OF ELECTRIC POWER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cordless telephone (CT) for home use, and more particularly, to maintain ongoing communication even in the event of a power outage during a call with a wireless handset.

A landline telephone used in a home is connected to a CO line by wire, and the CO line is connected to a public switched network switch (PSTN) to communicate by transmitting a signal along a set path.

Since the ordinary landline telephone or the telephone is connected by a line of a conductor for transmitting a signal, the installation place is designated, and movement is possible in an extremely limited range.

The extension of the mobility of the ordinary telephone to a predetermined range is called a cordless telephone or CT (CORDLESS TELEPHONE).

Hereinafter, a radiotelephone (CT) according to the prior art will be described with reference to the accompanying drawings.

1 is a functional configuration diagram of a wireless telephone according to the prior art, and FIG. 2 is a flowchart of a method for operating a wireless handset according to the prior art.

Referring to FIG. 1, the wireless telephone 80 according to the related art is connected to a CO line which is connected to an exchange, and detects incoming and outgoing calls and simultaneously monitors and controls the entire wireless base 60 ( 10) with,

A voice unit 20 connected to the control unit 10 and processing the voice level signal by incoming and outgoing;

A handset unit 30 connected to the voice unit 20 to transmit and receive voice level signals by incoming and outgoing calls;

A high frequency unit 40 which modulates a voice level signal input from the voice unit into a corresponding high frequency (RF) signal and wirelessly transmits the demodulated signal to the voice unit 20;

A dial unit 50 connected to the controller 10 for dialing a unique number of a counterpart to be called;

It is composed of a wireless handset 70 that is wirelessly connected to the high frequency unit 40 of the wireless base 60 to wirelessly transmit and receive a corresponding communication signal.

As a method of operating the radiotelephone 80 having the above configuration, the control unit 10 monitors the high frequency unit 40 to continuously determine whether to communicate with the wireless handset 70 (S10). Wow,

When determining in the first step (S10) to communicate with the wireless handset 70, the control unit 10 controls the voice unit 20 to cut off the connection with the handset 30 and the high frequency unit 40 A second step (S20) of communicating with the wireless handset 70 by an incoming / outgoing call through the high frequency unit 40 by controlling the connection;

The control unit 10 determines whether the power supply for operating the high frequency unit 40 is not in a correct state, and terminates the communication when the power failure state (S30);

In the third step (S30), it is determined that the communication is completed in case of no power failure, and if the communication is continued in the determination, the feedback is returned to the second step (S20), and when the communication is completed, It is characterized by a configuration consisting of a fourth step (S40) for ending the process.

Hereinafter, a wireless telephone and a method of operating the same according to the related art having the above configuration will be described in detail with reference to FIGS. 1 and 2.

The wireless base 60 of the wireless telephone 80 is connected to the switchboard by being connected to the CO line by wire.

In the case of communication by incoming call using the wireless base 60 as described above, the control unit 10 controls the voice unit 20 and the handset unit 30 to communicate with each other through the handset unit 30. Proceed.

When the user wants to communicate by calling using the wireless base 60, the dialing unit 50 dials the corresponding unique number (ID) of the communication counterpart, and the control unit 10 dials the trunk line. When the path is established by transmitting the dialing signal to the corresponding exchange through the CO and a call with the other party is established, communication is performed through the handset 30.

When communicating with the handset 30 provided in the wireless base 60 of the radiotelephone 80 as described above is the same as the communication using a normal wired telephone, and freely communicate while moving in a range of a predetermined radius If you want to, the wireless handset 70 should be used for communication.

When communicating with the wireless handset 70, by inputting an assigned button of the wireless handset 70 by the user, the corresponding radio signal is transmitted to the high frequency unit 40 of the wireless base 60, The high frequency unit 40 recognizes the received signal by applying the received signal to the control unit 10 through the voice unit 20.

As described above, when the wireless handset 70 recognizes that the wireless connection is intended for communication, the controller 10 controls to block the connection between the handset 30 and the voice unit 20, and the high frequency unit and the high frequency unit 20. The control unit 40 is connected.

For example, the voice unit 20 performs voice processing such as amplifying a voice level signal transmitted and received to a predetermined level, and the high frequency unit 40 allocates a voice level signal applied from the voice unit 20 to a frequency allocated thereto. By modulating and transmitting wirelessly, the wireless handset 70 receives the signal. The signal transmitted from the wireless handset 70 is received, demodulated, and applied to the voice unit 20.

Since the high frequency unit 40 having the above functions requires a lot of power in transmitting and receiving with a corresponding radio signal, the operating power must be supplied from the outside, and the high frequency unit is not supplied if the external operating power is not supplied. While the unit 40 does not operate, the handset 30 and the voice unit 20 are connected to each other under the control of the control unit 10 so that the unit 40 operates like a general landline telephone.

Referring to FIG. 2, the wireless telephone operating method according to the related art is described. The control unit 10 transmits a corresponding control signal for the wireless handset 70 to communicate, and the signal transmitted as described above is a high frequency unit. It is determined continuously through the 40 (S10).

As a result of the determination (S10), when the wireless handset 70 intends to communicate, the controller 10 cuts off the connection between the voice unit 20 and the handset unit 30, and the voice unit 20 and the high frequency unit. By controlling the 40 to be connected, the wireless handset 70 and the high frequency unit 40 are wirelessly connected to perform incoming / outgoing communication using the wireless handset 70 (S20).

The controller 10 checks and determines whether the operating power applied from the outside is continuously supplied or the power is cut off by monitoring the voice unit 20 and the high frequency unit 40 (S30).

If the power failure is determined in the third step (S30), the communication is terminated by the wireless handset 70, and when the power failure is not determined, it is determined whether the communication is continued or the communication is completed through the wireless handset 70. (S40).

If the communication is not completed as determined in the fourth step (S40), the feedback is fed back to the second step (S20) to continue the communication with the wireless handset 70, and when the communication is completed, the wireless handset ( 70) End the communication by using.

Therefore, the wireless telephone 80 according to the related art having the above-described configuration has a problem in that the communication in progress is terminated when the power failure occurs in the process of performing communication with the wireless handset 70.

It is an object of the present invention to provide a radiotelephone and a method of operating the radiotelephone so that communication in progress to the wireless handset continues to the speakerphone provided in the wireless base when the external operating power supplied to the radiotelephone is cut off.

The present invention has been made in order to achieve the above object, the control unit which is connected to the trunk line and transmits incoming and outgoing signals, monitors and controls each functional unit and operates with a line power applied through the trunk line; A voice unit connected to the control unit and transmitting a voice signal in a designated path by a control signal; A high frequency unit which is connected to the voice unit and modulates the input signal into an allocated high frequency signal for wireless transmission and demodulates the received signal to the voice unit and operates by an external power source; A power failure display unit connected to the control unit to display a power failure state when an external power source is out of power; The speakerphone unit is connected to the voice unit and transmits and receives a signal to the speakerphone under the control of the controller.

In addition, the present invention has been made in order to achieve the above object, the first step of determining whether the communication to the wireless handset by the wireless telephone control unit; A second step of determining whether the external power is continuously supplied or the supply is cut off when the communication is performed in the wireless handset by the determination in the above step; A third process of controlling the voice unit to maintain an ongoing communication in connection with the speaker phone unit by driving the power failure display unit by using line power when the supply of external power is judged in the process; It is determined whether the communication in progress is completed, and if it is not completed, returns to the second process and, if completed, characterized in that it comprises a fourth process of terminating the communication.

1 is a functional configuration diagram of a wireless telephone according to the prior art,

2 is a flowchart illustrating a method for operating a wireless handset according to the prior art,

Figure 3 is a functional diagram of the radiotelephone in preparation for power outage according to the present invention,

4 is a flowchart illustrating a method for operating a wireless telephone in preparation for power failure according to the present invention.

** Explanation of symbols on the main parts of the drawing **

10,110: control unit 20,120: voice unit

30,140: Handset 40,130: High Frequency

50,170: dial 60,180: wireless base

70,190: Wireless handset 80,200: Wireless handset

150: speaker phone unit 160: power failure display unit

It will be described below with reference to the accompanying drawings, a radiotelephone and a method of operating the same according to the present invention.

It is attached to explain the present invention, Figure 3 is a functional diagram of the radio telephone set for power outage according to the present invention, Figure 4 is a flow chart of the operation method of the cordless telephone set according to the present invention.

With reference to the accompanying Figure 3, according to the present invention, a radiotelephone in preparation for a power outage to continue communication even in the event of a power outage, a wired connection with a CO line which is connected to an exchange, and an incoming and outgoing signal And a control unit 110 for controlling transmission and reception in each path and monitoring and controlling each function unit, operating as a line power source applied through the CO line,

The voice unit 120 connected to the control unit 110 and transmitting a voice level signal through a path designated by the control signal, that is, the high frequency unit 130, the speakerphone unit 150, or the handset unit 140. Wow,

A high frequency signal connected to the voice unit 120 and modulated into an allocated high frequency signal for wireless transmission and demodulated to be output to the voice unit 120 and operated by power applied from the outside Section 130,

A power failure display unit 160 that is connected to the control unit 110 and is driven by a line power applied through a trunk line by displaying a power failure state under the control of the control unit 110 when the external power is cut off or cut off;

A dial unit 170 connected to the controller 110 to dial and input a unique number (ID) of a counterpart to communicate with;

A speakerphone unit 150 which is connected to the voice unit 120 and communicates with a speaker speaker (SPEAKER PHONE) made of a microphone under the control of the controller 110, and is driven by a line power source;

The handset 140 is connected to the voice unit 120 and communicates with the user alone by transmitting and receiving a signal under the control of the controller,

The wireless handset 190 is wirelessly connected to the high frequency unit 130 and communicates freely while moving in a predetermined range.

In the above configuration, the control unit 110, the voice unit 120, the high frequency unit 130, the handset unit 140, the speakerphone unit 150, the electrostatic display unit 160, and the dial unit 170 are fixed devices that cannot be moved. Configure or form the wireless base 180.

The voice unit operates by an external power source when an external power source is applied, and operates by a line power source when the external power source is cut off, and drives the speakerphone unit, and the controller monitors the voice unit and the high frequency unit to confirm that the external power source is cut off. The power failure display unit is driven by a line power source.

In addition, referring to the accompanying Figure 4, according to the present invention, even in the event of a power outage, the present invention is a method for operating a radiotelephone compared to a power outage, by the control unit 110 of the radiotelephone 200 A first process (S100) for continuously determining whether the communication proceeds to the handset 190,

In the process (S100), when the communication proceeds to the wireless handset 190, the controller 110 determines whether the external power is continuously supplied or the supply is cut off due to a power failure. The second process (S110) to determine by monitoring the;

When the supply of external power is cut off in step S110, the controller 110 displays the external power cut off or power failure by driving the power failure display unit 160 using line power (S120). A third process of controlling the unit 120 to block the high frequency unit 130 from being connected and to maintain the ongoing communication in connection with the speakerphone unit 150 (S130);

It is determined whether the current communication is completed, and if it is not completed, the process returns to the second process (S110), and when the communication is completed, the fourth process (S140) ends the communication.

Hereinafter, the present invention having the above-described configuration will be described in detail with reference to FIGS. 3 and 4 of the wireless telephone and its operation method in preparation for power failure.

The wireless base 180 of the radiotelephone 200 is connected to a switchboard via a CO and operates by separately receiving external power for operating an internal circuit, and particularly, a high frequency unit that requires a large amount of operating power. 130 is used as a power source for operating.

The radiotelephone (CT: CORDLESS TELEPHONE) 200 operates only when external power is supplied, so that the high frequency unit 130 operates, and the wireless base 180 and the wireless handset 190 are wirelessly connected to communicate with each other. When the external power supplied to the wireless base 180 is not supplied or cut off by a power failure or the like, since the high frequency unit 1230 does not operate, the wireless base 180 and the wireless handset 190 are Wireless communication is not possible.

Therefore, even when the wireless base 180 and the wireless handset 190 are wirelessly connected, when the communication of the external power supply is cut off, the wireless connection is cut off and the ongoing communication should be stopped. The unit 120 is controlled to automatically connect and drive the speakerphone unit 150 with a line power applied through the CO line so as to continue without interrupting the communication in progress.

Referring to the operation of the main functional unit of the wireless telephone 200 compared to the blackout according to the present invention with reference to the accompanying Figure 3, the control unit 110 rectifies the line power applied through the CO line CO By using the circuit and the like as the operating power at the same time supplying the operating power to the corresponding functional portion constituting the wireless base 180.

The voice unit 120 and the high frequency unit 130 of the wireless base 180 consumes a lot of power. In particular, the high frequency unit 130 consumes a lot of power by wirelessly transmitting and receiving the signal and performing demodulation and demodulation. Therefore, it is configured to operate under the supply of external power.

In more detail, the voice unit 120 operates as an external power source when an external power source is supplied. When the external power source is not supplied to the voice unit 120, the voice unit 120 operates by a line power source applied through the control unit 110. The unit 130 does not supply the amount of power consumed to the line power, and thus cannot operate when the supply of external power is cut off.

The wireless handset 190, for example, by supplying the operating power using a rechargeable battery (RECHARGEABLE BATTERY), when not in use to always maintain a full charging (FULL CHARGING) state by the charger.

The controller 110 monitors and controls each functional unit of the wireless base 180, and in particular, by monitoring the operating states of the voice unit 120 and the high frequency unit 130, by supplying external power or by power failure. Detects if there is no supply or if supply is interrupted.

When the controller 110 detects that external power is not supplied while the wireless handset 190 is in communication with the high frequency unit 130, the controller 110 controls the voice unit 120 to control the voice unit ( The speakerphone unit 150 is connected to the speakerphone unit 150 and the speakerphone unit 150 is driven by the line power applied through the CO line, so that communication by the call CALL currently connected to the speakerphone unit ( Continue to 150).

In addition, the controller 110 displays the external power not being supplied by driving the power failure display unit 160 using the line power.

By using the radiotelephone 20 having the above-described configuration, the radiotelephone operation method according to the present invention will be described with reference to FIG. 4. The control unit 110 is provided with the voice unit 120 and a high frequency wave. By monitoring the unit 130, it is determined whether communication is in progress via the wireless handset 190 (S100).

If it is determined that the communication is in progress through the wireless handset 190 in the determination (S100), it is determined whether the external power is continuously supplied or cut off by a power failure (S110).

In the case where the external power is continuously supplied in the determination S110, the process proceeds to a fourth process S140 to determine whether to continue the communication, and if so, returns to the second process S110 again.

If it is determined in the second process (S110) that the supply of external power is interrupted by a power failure, the controller 110 controls the power failure display unit 160 to be driven by the line power to display the power failure state (S120). ).

In addition, the control unit 110 is connected to the high-frequency unit 130 that operates by an external power source by controlling the voice unit 120, and cuts the state of transmitting and receiving a signal, the speaker phone unit 150 to operate as a line power source In order to transmit and receive a signal, the user using the wireless handset 190 maintains communication using the speakerphone unit 150 (S130).

The control unit 110 determines whether the communication proceeding as described above is completed, and when the communication is in progress back to the second process (S110), when the communication is completed, the speaker unit by controlling the voice unit 120 By shutting off the driving of the unit 150, the current communication is terminated (S140).

Even when the state in which the supply of external power is interrupted by the power failure to the wireless base 180 is maintained, the communication counterpart is called by using the dial unit 170 and the speakerphone unit 150 is used for communication. It can start, and can communicate using the handset 140.

Therefore, the present invention as described above, even if the external power supplied to the wireless telephone (CT) 200 is cut off by a power failure or the like, the ongoing communication is maintained.

The present invention of the above configuration has the effect of improving the communication reliability by maintaining the current communication even when the external power supplied to the radiotelephone (CT) is cut off.

In addition, even when no external power is supplied, such as a power outage, there is a convenient effect of using the speakerphone to perform communication by incoming and outgoing calls.

Claims (6)

A control unit which is connected to the trunk line and transmits incoming and outgoing signals, monitors and controls each function unit, and operates with a line power applied through the trunk line; A voice unit connected to the control unit and transmitting a voice signal in a designated path by a control signal; A high frequency unit which is connected to the voice unit and modulates the input signal into an allocated high frequency signal for wireless transmission and demodulates and outputs the signal to the voice unit and operates by an external power source; A power failure display unit connected to the control unit and displaying a power failure state when the external power is interrupted by a control signal; And a speakerphone unit connected to the voice unit and transmitting and receiving a signal to and from a speakerphone under control of a controller. The method of claim 1, wherein the audio unit, When the external power is applied, it operates by the external power, and when the external power is cut off, the cordless telephone set, characterized in that it operates by the line power to drive the speakerphone unit. The method of claim 1, wherein the control unit, And monitoring the voice unit and the high frequency unit to confirm that external power is cut off, and to drive the power failure display unit by line power. A first process of determining, by the wireless telephone control unit, whether communication is performed with the wireless handset; A second step of judging whether the external power is continuously supplied or the supply is cut off when the communication is performed in the wireless handset by determining in the above step; A third process of controlling the voice unit to maintain an ongoing communication in connection with the speaker phone unit by driving the power failure display unit by using line power when the supply of external power is determined as determined in the above process; It is determined whether the ongoing communication is completed, and if not completed, the method returns to the second process and, if completed, a fourth process of ending the communication, characterized in that consisting of a radiotelephone operating method. The method of claim 4, wherein the second process comprises: And the control unit determines whether external power is cut off by monitoring the voice unit and the high frequency unit. The method of claim 4, wherein the third process comprises: A method for operating a wireless telephone in preparation for a blackout, characterized in that the voice unit is blocked from being connected to the high frequency unit and is connected to a speaker phone unit and drives the speaker phone unit by line power.