KR20000025427A - Apparatus for calling back when mobile phone being lost and method thereof - Google Patents

Abstract

PURPOSE: An apparatus for calling back when a mobile phone being lost and method there of is provided to find a lost mobile phone easily by calling back to a loser by a finder of the lost phone. CONSTITUTION: An apparatus for calling back when a mobile phone being lost includes an auxiliary battery(30), a keypad(18), a memory(12), a battery detecting portion(24), an auxiliary battery supplying portion(32) and a control portion. The auxiliary battery embedded in a mobile phone supplies power with the mobile phone separately from a main battery(26) adapted to the mobile phone. The keypad carries a various operation keys such as a numeric key and a losing key for calling back for a loser when a mobile phone being lost. The memory stores a reachable place. The battery detecting portion detects a battery status not to output power over than the predetermined voltage level from the main battery. The auxiliary battery supplying portion being connected with the auxiliary battery supplies a power from the auxiliary battery according to control from a control portion. The control portion outputs the signal controlling auxiliary battery supply when the losing key is pressed and a non-ordinary state is detected by the battery detecting portion and controls to dial to user's reachable number already registered in the memory.

Description

Callback device in case of loss of portable cordless phone and its method

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable wireless telephone, and more particularly, to an apparatus and a method in which a learner presses a specific key to call back to the owner when a mobile telephone is lost.

In general, portable wireless telephones such as mobile phones, smart phones, etc. are small and are carried by the user and are frequently moved. When a user loses a walkie talkie, the user dials the number on his walkie talkie and calls, or if the learner wants to return the lost walkie talkie to the owner. Of course, the call can only be made if the charge is good. In other words, even when the battery is not attached or attached, the portable wireless telephone cannot operate when all are discharged. If the battery is not installed or is discharged even if it is installed, the acquirer has to pay his money to call the lost person, and if there is no contact, contact the mobile service provider or go to the public office to report it. .

Accordingly, an object of the present invention is to provide a callback apparatus and method for easily finding a loser by calling the loser when the portable wireless telephone is lost.

1 is a block diagram of a portable wireless telephone having a callback function upon loss according to an embodiment of the present invention.

2 is a control flowchart for making a callback to a lost person when a portable radiotelephone is lost according to an embodiment of the present invention;

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. While many specific details are set forth in the following description and in the accompanying drawings, such as specific processing flows, to provide a more general understanding of the invention, these specific details are illustrated for the purpose of explanation of the invention, meaning that the invention is limited thereto. It is not. And a detailed description of known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

1 is a block diagram of a portable wireless telephone having a callback function upon loss according to an embodiment of the present invention. In a typical cellular phone, an auxiliary battery 30, a power detecting unit 24, and an auxiliary power supply unit 32 are configured.

In FIG. 1, a control unit including a central processor unit (CPU) 10, an electrically erasable and programmable ROM (EEPROM) 12, a flash memory 16, and a random access memory (RAM) 14 is basically configured by the CPU 10. As a block for processing and controlling an in-phone call or data communication, a process for calling back a lost person according to the present invention is performed as described below. Therefore, in the following description, the description of the processing and control of the CPU 10 for ordinary telephone calls or data communication is omitted. In the control unit, the EEPROM 12, the flash memory 16, and the RAM 14 are connected to the CPU 10 and accessed by the CPU 10. The EEPROM 12 stores various reference data for processing and control of the CPU 10. The flash memory 16 stores a program for processing and controlling the CPU 10. RAM 14 stores the user's contacts in the working memory of CPU 10. In addition, the CPU 10 is connected to a key pad 18 and a liquid crystal display (LCD) 20. The keypad 18 includes various keys including numeric keys and a lost key for calling a lost person when learned. Provides key input to the CPU 10. The Liquid Crystal Display (LCD) 20 displays various information as an image under the control of the CPU 10. An RF module 22 modulates a signal to be transmitted from the CPU 10 to transmit an RF signal through an antenna, and demodulates an RF signal received through the antenna and outputs the RF signal to the CPU 10. The voice processor 32 connected to the CPU 10, the microphone 34, the speaker 36, and the vibrator 38 connected to the voice processor 32 are blocks used for telephone calls, incoming calls, and the like. The voice processor 32 typically uses a vocoder, encodes a voice signal input from the microphone 34, outputs voice data to the CPU 10, and decodes the voice data input from the CPU 10 to decode the voice signal. Output to speaker 36. And vibrator 38 is used to output the vibration.

The control unit, the keypad 18, the LCD 20, the RF module 22, and the voice processing unit 32 as described above are operated by an operating power source using the power of the main battery 26 mounted in the portable cordless phone as in a normal case. This operating power is generated from the power of the main battery 26 in the power supply unit 28 and supplied to each unit.

However, when the portable radiotelephone is not equipped with the main battery or is discharged even when it is installed, the conventional portable radiotelephone was not supplied with the operating power. If the lost portable cordless phone is in such a state, as described above, the lost person does not receive a call when he / she makes a phone call, and the learner cannot make a call when trying to call the lost person.

In this case, the secondary battery 30 is embedded in the portable wireless telephone separately from the main battery 26 to supply power so that the learner can automatically dial a registered telephone number when the learner presses the learning key provided in the keypad. Let's do it. In addition, the power supply by the auxiliary battery 30 is limitedly provided only when the main battery 26 is not installed or all are discharged as described below. Therefore, when the main battery 26 is normally charged while being charged, the power supply of the auxiliary battery 30 is not used.

In this way, the power detector 24 was used to detect whether the auxiliary battery 30 was used. The power detector 24 is commonly connected to the power supply 28 at the output terminal of the main battery 26 to input power output from the main battery 26 to the power supply 28 and the auxiliary power supply 32. The power supply detecting unit 32 detects a power supply abnormality state in which the power supply above the voltage level specified by the main battery 26 is not output. If the main battery 26 is not installed or is completely discharged, the power supply above the voltage level specified by the main battery 26 will not be output. In this case, the power detector 24 detects a power failure. Therefore, the power detector 24 uses a conventional voltage comparator. The auxiliary power supply 32 supplies the power of the auxiliary battery 30 when the power abnormality state is detected by the power detector 24, or does not supply the power of the auxiliary battery 30. As a result, when the main battery 26 is not installed or in a completely discharged state, operating power is supplied from the auxiliary battery 30 through the auxiliary power supply 32.

2 is a control flow chart for making a callback to a loser when a portable radiotelephone is lost according to an embodiment of the present invention.

1 to 2, the operation of the preferred embodiment of the present invention will be described in detail.

In order to carry out the present invention, the user's contact information (telephone number) must be registered, and registration for this is done by entering the user's contact registration mode and entering a phone number and then pressing the lost key and the registration key. For example, after pressing the function key and one set number key, input the user's phone number and press the END key. If the user loses the portable cordless phone after registering the user's contact information, the learner presses the lost key. In step 101, the CPU 10 checks whether the lost key is pressed from the keypad 18 and proceeds to step 102 if the lost key is pressed. . In step 102, the CPU 10 checks whether a user contact is registered and proceeds to step 103 if the user contact is registered. In step 103, the CPU 10 checks whether the main battery 26 is in a usable state from the power detecting unit 24, and proceeds to step 105 if the state is available, and proceeds to step 104 if the state is not available. In step 104, the CPU 10 controls the auxiliary power supply unit 32 to supply power supplied from the auxiliary battery 30 to each unit. Then, in step 105, the CPU 10 dials the user's contact number registered in the EEPROM 12 to make a call with the lost person so that the lost portable cordless phone can be returned to the owner.

Meanwhile, in the above description of the present invention, specific embodiments have been described, but various modifications can be made without departing from the scope of the present invention. Therefore, the scope of the invention should not be defined by the described embodiments, but should be defined by the equivalent of claims and claims.

As described above, the present invention facilitates a lost portable wireless telephone by forming a call to a registered lost contact when the acquirer presses the lost key when the lost portable wireless telephone is not equipped with the main battery or is completely discharged. There is an advantage to be found.

Claims (4)

In the walkie talkie, An auxiliary battery embedded in the portable cordless phone separately from a main battery mounted to supply operating power of the portable cordless phone; A keypad having various function keys including numeric keys and a loss key for calling a loser when learned; A memory that stores your contacts, A power supply detecting section for detecting a power supply abnormal state in which power above the voltage level specified by the main battery is not output; An auxiliary power supply unit connected to the auxiliary battery and supplying power to the auxiliary battery under control of a controller; A control unit for outputting the auxiliary power supply control signal when the abnormal state of the main battery is detected from the power detection unit when the lost key of the keypad is pressed, and controlling to dial a user contact previously registered in the memory; Callback device when the loss of the portable cordless phone, characterized in that provided. In the method of a learner calling back to a lost person in a portable cordless phone equipped with a main battery and a secondary battery, A process in which a learner presses a lost key when the portable wireless telephone is lost; Checking whether a user contact is registered when the lost key is pressed; Checking a usability state of the main battery when the user contact information is registered; Dialing the registered user contact when the main battery is in a usable state, and forming a call. The method of claim 2, And supplying power to the auxiliary battery when the main battery is in an unusable state. In the method of a learner calling back to a lost person in a portable cordless phone equipped with a main battery and a secondary battery, A process in which a learner presses a lost key when the portable wireless telephone is lost; Checking whether a user contact is registered when the lost key is pressed; Supplying power to the auxiliary battery when the main battery is not all discharged or mounted when the user contact information is registered; And dialing the registered user contact after supplying the auxiliary power.