KR0122454B1 - Signal detecting of cellular phone - Google Patents

Abstract

The incoming signal detecting method in a cellular phone includes: the first step of entering into a reception standby state through a given initializing process, if power supply is applied to the cellular phone; the second step of affirming that there is a call during an absence of a user, after the first step; the third step of entering into an automatic answering mode, if there is the call during absence of the user in the second step; the fourth step of transmitting an automatic answering message to a dialing party after the third step; the fifth step of recognizing a telephone number (DTMF signal) received from the dialing party after the fourth step; the sixth step of affirming that the telephone number recognized in the fifth step is identical to one of the telephone numbers previously stored in a memory; the seventh step of increasing only reception number of times corresponding to the recognized telephone number by one, in case that the telephone number recognized in the sixth step is identical to one of the telephone numbers previously stored in the memory; the eighth step of storing the recognized telephone number in the memory, in case that the telephone number in the sixth step is not identical to one of the telephone numbers previously stored in the memory, and increasing the corresponding reception number of times by one to store it; the ninth step of judging that the user confirmed the above telephone number and the reception number of times thereof, after the eighth step; the tenth step affirming that there is a reset command, if the user confirmed them in the ninth step; the eleventh step of removing the telephone number and the reception number of times stored in the memory to return to the second step, if there is the reset command in the tenth step; the twelfth step of continuously judging that there is the call during absence of the user, if there is no call during an absence of the user in the second step; the thirteenth step of returning to the second step, if the user did not confirm them in the ninth step; and the fourteenth step of returning to the second step, if there is no reset command in the tenth step.

Description

Method for detecting missed signal of cell phone

1 is a flowchart illustrating a process of detecting only the number of missed calls of a user of a conventional cellular phone.

2 is a block diagram of a cell phone for applying the present invention.

3 is a flowchart illustrating a process of detecting a caller's telephone number and a reception frequency according to the present invention.

The present invention relates to a method for providing a user with information about a CALL that a cellular phone automatically receives while away from a user. In particular, the present invention can simultaneously detect a caller's telephone number and the number of times of a call associated with the telephone number. It is about a method.

Most cell phones in the related art display only the number of incoming calls for the incoming call or only the caller's phone number for the incoming call.

The prior art will now be described with reference to FIG. When the power is applied, the cellular phone performs a predetermined initialization procedure and enters a reception standby state (step 201). After step 201, the memory area of the memory portion of the user's missed calls is reset (step 202). During step 202, a predetermined number of rings are determined according to whether a receive button is input (step 203). If it is determined in step 203 that the user misses a call, the number of calls received is increased by one in the missed call count storage area (step 204). After step 204, when the user checks the number of incoming / outgoing calls (step 205), the storage area is reset.

According to such a prior art, the user can only know the number of incoming calls of the missed call, but no information about the sender. In order to solve this problem, a method of storing a phone number entered by the sender after automatic reception and displaying it to the user has been suggested. It is stored repeatedly, and the user repeatedly checks the same phone number. Therefore, there is a problem that not only inconveniences the user, but also wastes memory. The present invention is to solve the problems of the prior art to effectively display the information on the sender of the missed call to the user and to prevent the unnecessary waste of the memory.

In order to achieve the above object, the present invention provides a first step in which a cellular phone enters a reception standby state through a predetermined initialization procedure when power is applied to the cellular phone, and whether there is a call forwarding of a user absent after the first step. A second step of checking, a third step of entering an auto answer mode when there is a user missed call in the second step, a fourth step of sending an auto-answer message to the sender after the third step, and the fourth step A fifth step of recognizing the telephone number received from the sender after the step; a sixth step of checking whether the telephone number recognized in the fifth step and the telephone number already stored in the memory means are the same; and the sixth step A seventh number that increases only the number of receptions corresponding to the telephone number if the recognized telephone number and the stored telephone number are the same. And an eighth step of storing the recognized telephone number in a memory means and increasing the corresponding number of receptions by one if there is no identical one among the recognized telephone number and the stored telephone number in the sixth step. A ninth step of determining whether the user has confirmed the telephone number and the number of receptions after the seventh or eighth step; and a tenth step of checking whether there is a reset command if the user confirms the ninth step; In step 10, if there is a reset command, the phone number and the number of receptions stored in the memory unit are erased, and step 11 returns to the second step. If there is no user missed call in the second step, the missed call is continued. The twelfth step of determining whether there is an error, the thirteenth step of returning to the second step if the user is not confirmed in the ninth step, and the reset in the tenth step If there is no command, it provides a receiving signal detection method comprising the step 14 of returning to the second step.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

2 is a block diagram of a cellular phone for implementing the present invention. 3 is a flowchart illustrating a process of detecting a telephone number and a reception frequency of a sender according to the present invention.

First, the configuration of the cellular phone shown in FIG. 2 will be described.

The cellular phone includes a duplexer (1) for inputting and outputting communication data received from a sender and communication data sent to the sender, a receiver (2) responsible for receiving and sensitivity measurement of call signals and call data transmitted by the sender, and a call response to the sender. And a transmitter (3) for transmitting call data, a frequency synthesizer (4) for synthesizing predetermined frequencies during a call and supplying them to the receiver (2) and the transmitter (3), and a controller (5) for controlling the overall operation of the cellular phone. And a memory unit 6 for storing an operation program of the control unit 5 and storing voice data for transmitting an automatic response message and storing the caller's telephone number and the number of incoming calls for the telephone number for realizing the present invention. And a liquid crystal display unit 7 for displaying general information according to the operation of the cellular phone, a keypad unit 8 having numeric keys and predetermined function keys, and transmitting and receiving voice data. DTMF sensor 10 and DTMF sensor 10 for receiving and detecting a DTMF (Dual Tone Multi Frequency) signal (that is, a telephone number) input by the sender from the receiver 2 and the DTMF sensor 10 The A / D converter 11 converts the transmitted analog signal into a digital signal. Key elements for realizing the present invention in such a cellular phone are the control unit 5, the memory unit 6 and the DTMF detection unit 10. In addition to the conventional memory element, the memory unit 6 includes an area for temporarily storing the sender's telephone number transmitted through the control unit 5 via the A / D converter 11, and a storage area for receiving frequency of the telephone number. It is provided. When the DTMF detector 10 detects a DTMF (Dual Tone Multi Frequency) signal applied through the receiver 2 and outputs the DTMF signal to the A / D converter 11, the A / D converter 11 digitally outputs the corresponding detection signal. By converting the signal into a control unit 5 and outputting it to the control unit 5, the control unit 5 can recognize the telephone number of the other party.

Next, a process of detecting the caller's telephone number and the number of receptions according to the present invention will be described with reference to FIG. When power is applied to the cellular phone configured as shown in FIG. 2, the controller 5 performs a predetermined initialization procedure according to an operation program stored in the memory unit 6, and the cellular phone enters a reception standby state (step 401). If there is a call in the reception waiting state, the controller 5 checks whether the call is in a user absence (step 402). Whether or not the user is absent is determined as if the user is absent when the user does not input the reception button even when the ringing tone sounds for a predetermined number of times as described above. In response to the user missed call at step 402, the controller 5 enters the auto answer mode (step 403). After entering the auto-response mode, the control unit 5 reads the auto-response message already stored in the memory unit 6 and transmits it to the transmission unit 3 (step 404). For example, you can't answer the phone right now. Please enter the phone number of the person you are calling. The voice response is stored in the memory unit 6 in advance, and then sent to the sender via the transmitter 3 and the duplexer 11. Send it out. After the step 404, if the sender enters a phone number, the receiving unit 2 receives it and delivers it to the DTMF detecting unit 10. The DTMF detection unit 10 detects the DTMF signal, which is an analog signal, and then transfers the DTMF signal to the A / D converter 11, and the A / D converter 11 transmits the DTMF signal transmitted from the DTMF detection unit 10. The control unit 5 recognizes the received telephone number by converting the digital signal into a digital signal so that the control unit 5 can process it and transmitting it to the control unit 5 (step 405). After step 405, the control unit 5 compares the transmitted caller's phone number with the phone number already stored in the memory unit 6 and searches for the same (step 406). When there is the same thing in the step 406, the number of receptions corresponding to the same phone number is increased by one (that is, N = N + 1) and stored in the memory unit 6 (step 407A), and the same phone number in the step 406 If not, the received telephone number is stored in the memory unit 6, and at the same time, the number of reception of the corresponding telephone number is stored (i.e., N = 0 to N = 1) (step 407B). After step 407A or step 407B, the controller 5 determines whether the user has confirmed the stored caller's telephone number and the number of receptions (step 408). For example, it is judged according to whether or not the user has instructed the liquid crystal display unit 7 to display the caller's telephone number and the number of receptions of the missed call using the predetermined key input means of the keypad unit 8. If it is determined in step 408 that the user confirms, the control section 5 again determines whether there is a reset command from the keypad section 8 (step 409). When the reset command is received in step 409, the control unit 5 erases the sender's telephone number and the number of receptions stored in the memory unit 6 (step 410). On the other hand, when there is no missed call in step 402, when the user does not confirm the caller's phone number, etc. in step 408, when there is no reset command in step 409, or the caller's phone number in memory unit 6 in step 410 If the number of receptions is canceled, the process returns to the missed call determination step (step 402).

On the other hand, instead of determining whether the step 409 has a user's reset command, if the user determines in step 408 that the user has confirmed that the caller's telephone number and the number of receptions are automatically stored in the memory unit 6 after a predetermined time elapses. It can also be replaced by erasing.

According to the present invention described above, when the user checks the missed call, the user can simultaneously check the phone number information for the caller and the number of times the caller makes a call. On the other hand, even if the call is repeatedly received from the same sender because it stores only the number of times without repeatedly storing the same phone number, there is also an effect that can effectively utilize the limited memory without wasting.

Claims (4)

In the cellular phone, a first step of entering a reception standby state through a predetermined initialization procedure when a power is supplied to the cellular phone, a second step of checking whether there is a call waiting in the absence of a user after the first step, and the second step. A third step of entering an auto answer mode when there is a user missed call in the step; a fourth step of sending an auto-answer message to the sender after the third step; and a telephone number received from the sender after the fourth step (DTMF) Signal), a sixth step of checking whether the phone number recognized in the fifth step and a phone number already stored in the memory means are the same, and the telephone number recognized in the sixth step. Step 7 for increasing only the number of receptions corresponding to the phone number if there is an identical number between the stored phone number and the stored phone number. An eighth step of storing the recognized telephone number in a memory means and incrementing the corresponding number of receptions by one if there is no identical telephone number with the stored telephone number, and after the seventh or eighth step, A ninth step of determining whether the user has confirmed the telephone number and the number of reception; a tenth step of checking whether there is a reset command if the user has confirmed in the ninth step; An eleventh step of erasing the stored telephone number and the number of receptions and returning to the second step; and a twelfth step of determining whether there is a missed call in the absence of the user's missed call in the second step; Step 13 returns to the second step if the user does not confirm in step 9, and returns to the second step if there is no reset command in the tenth step. Is a method for detecting missed incoming call, characterized in that it comprises a first stage 14. The method for detecting missed calls according to claim 1, wherein if the receiving button is not input even if the incoming call tone is outputted more than a predetermined number of times in the second step, it is determined that the missed call is made and the procedure is shifted to the third step. The method of claim 1, wherein the response message is sent by outputting a voice message recorded in the memory means in the fourth step. The method of claim 1, wherein when a predetermined time elapses in steps 10 and 11, the telephone number and the number of receptions stored in the memory unit are erased and the process returns to the second step. .