KR200212969Y1 - Apparatus for portable terminal utilizing caller ID callback - Google Patents

Abstract

The present invention is a wireless terminal device that implements a caller number reply function that is suitable for overcoming the disadvantage that the answer is impossible due to the area code when the caller number is a city code in the wireless terminal device that implements the caller ID reception and reply function. In order to provide the present invention, the present invention comprises: a caller number transmitting and receiving end for receiving / storing the calling party number transmitted by the switching system and transmitting the received caller number to the switching system when the user requests a reply; A liquid crystal display unit for displaying a calling party number stored in the calling party number receiving end; The memory unit stores user-defined area code. When replying to the caller's number, the user can send out the phone number except the area code if the phone number to be returned is the local phone number. In addition, it is possible to compensate for the shortcomings of the prior art, which could not reply to the telephone number belonging to the local call area.

Description

Wireless terminal device implementing caller ID reply function {Apparatus for portable terminal utilizing caller ID callback}

The present invention relates to receiving and replying to a calling party number of a wireless terminal, and in particular, when a caller number is a local number in a terminal device in which a caller ID callback function is implemented, a reply is impossible due to an area code. The present invention relates to a wireless terminal apparatus implementing a calling party number return function suitable for reducing a subscriber's number of dials.

In general, a user of a wireless terminal can transmit his / her telephone number to a receiver.

Then, the receiver checks the calling party number and presses the call button so that the called party can reply to the calling party number. This feature reduces the inconvenience and time required for the recipient to dial several times.

The present invention proposes a terminal apparatus having a function of returning a caller's number, which will be described below.

First, Figure 1 is a block diagram of a wireless terminal device having a caller ID reply function according to the prior art.

As shown in FIG. 1, in the conventional apparatus, caller ID data transmitted from a switching system through a public telephone network (PSTN) 11 is received by the caller ID signal demodulator 12. As shown in FIG.

The caller ID signal demodulator 12 extracts the calling party number by demodulating the received calling party number data. The CPU 13 then stores the received caller number in the EEPROM 15.

When the user of the terminal requests retrieval of the calling party number received through the liquid crystal display unit 14, the CPU 13 reads the telephone number stored in the EEPROM 15 and displays it on the liquid crystal display unit 14.

The user requests a reply to the corresponding calling party number by searching for the displayed calling party number and selecting a call button.

When the user requests a reply, the CPU 13 sends the telephone number displayed on the liquid crystal display unit 14 to the public telephone network 11 via the caller ID signal demodulator 12 as it is.

The operation of the public telephone network 11 including the switching system is generally known.

Through the caller ID receiving and replying function, the user of the wireless terminal can send a phone number with a simple search operation and reply to the caller side instead of dialing each digit of the phone number directly.

However, the above-described prior art has a problem because the sender number transmitted from the exchange system includes the area code even when the caller number is sent as it is, when the sender number including the area code is sent out as it is.

That is, when the caller ID is in the local call zone, the exchange system of the public telephone network does not recognize the area code, and when the phone number including the area code is sent out, the call connection is not made.

For this reason, the usefulness of the caller ID reception and reply function may be reduced.

In this regard, the present invention is proposed to solve the conventional problems as described above, and an object of the present invention is an area code in the case where the caller number is a local number in a wireless terminal device having a Caller ID Callback function implemented. The present invention provides a wireless terminal apparatus that implements a caller ID reply function that is suitable for reducing the number of dials of a subscriber by overcoming a disadvantage in that a reply is impossible.

In order to achieve the above object, the wireless terminal device implementing the calling party number return function according to the present invention receives and stores the calling party number transmitted by the switching system and sends the received calling party number when the user requests a reply. A calling party number transmitting and receiving end transmitting to the switching system; A liquid crystal display unit for displaying a calling party number stored in the calling party number receiving end; The technical configuration is characterized by consisting of a memory unit for storing the user-defined area code.

1 is a block diagram of a wireless terminal device having a caller ID reply function according to the prior art,

Figure 2 is a block diagram of a wireless terminal device implementing the caller ID reply function according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

21: public telephone network 22: caller ID signal demodulation unit

23: CPU 24: liquid crystal display unit

25: EEPROM 26: memory

Hereinafter, the configuration and operation of the present invention according to an embodiment according to the technical idea of the wireless terminal device implementing the caller ID reply function according to the present invention as follows.

First, Figure 2 is a block diagram of a wireless terminal device implementing the caller ID reply function according to an embodiment of the present invention.

As shown in FIG. 2, a suitable embodiment of the present invention is to receive and store a calling party number transmitted by the switching system and to send and receive the calling party number to the switching system when the user requests a reply. Stages 22, 23, 25; A liquid crystal display unit 24 for displaying a calling party number stored in the calling party number receiving end (22, 23, 25); The memory unit 26 stores a user defined area code.

The apparatus proposed by the present invention stores the area code defined by the user of the wireless terminal in advance, and when the caller ID is returned, the device checks whether the caller number is a calling area indicated by the defined area code.

Through the confirmation of the call zone, the present invention solves the problem of dialing an area code together when dialing a local telephone number.

In more detail, the user of the wireless terminal will predefine the area code of the call zone to which he belongs. At this time, the user defined area code is stored in the memory unit 26.

The caller ID data transmitted by the exchange system of the public telephone network 21 is received by the caller ID signal demodulator 22.

The caller ID signal demodulator 22 extracts the calling party number by demodulating the received calling party number data. The CPU 23 then stores the received caller number in the EEPROM 25.

When the user of the terminal requests retrieval of the calling party number received through the liquid crystal display unit 24, the CPU 13 reads the telephone number stored in the EEPROM 15 and displays it on the liquid crystal display unit 14.

The user requests a reply to the corresponding calling party number by searching for the displayed calling party number and selecting a call button.

When the user requests a reply, the CPU 13 reads the area code stored in the memory unit 26 and compares it with the area code among the phone numbers displayed on the liquid crystal display unit 14. This comparison operation can be implemented by a simple algorithm that compares from the beginning of the telephone number displayed on the liquid crystal display unit 14.

If the result of the area code comparison is the same, it means that the phone number displayed on the liquid crystal display unit 14 is a local phone number. Otherwise, the call is not a local telephone number.

Thus, if the telephone number is not a local telephone number, the CPU 23 transmits the corresponding calling party number to the public telephone network 11 via the caller ID signal demodulation unit 12 as it includes the area code.

On the other hand, when the calling party number to be returned is the local telephone number, the CPU 23 sends only the number except the area code among the corresponding calling party numbers to the public telephone network 11.

As such, the present invention allows the user to send a phone number except for the area code when the phone number to be returned is a local phone number by using a pre-defined area code when the caller answers the call. It is to compensate for the shortcomings of the prior art, which did not reply with respect to the number.

While the preferred embodiment of the present invention has been described above, the present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Therefore, the above description does not limit the scope of the present invention defined by the limits of the following utility model registration claims.

As described above, the wireless terminal device implementing the caller ID reply function according to the present invention, in the case of a local telephone number when replying to the caller ID, transmits a telephone number except for an area code to a local call zone. There is an effect to compensate for the shortcomings of the prior art that could not reply to the phone number to which it belongs.

Therefore, the user of the wireless terminal can use the calling party number receiving and replying functions more conveniently, and the service provider and the terminal manufacturer providing the calling party number sending service have the advantage of meeting the needs of customers.

Claims (2)

A calling party number transmitting and receiving end for receiving / storing the calling party number transmitted by the switching system and transmitting the received calling party number to the switching system when the user requests a reply; A liquid crystal display unit for displaying a calling party number stored in the calling party number receiving end; A wireless terminal device implementing the caller ID reply function comprising a memory unit for storing a user defined area code. The method of claim 1, wherein the caller ID transceiver is, As a result of comparing the area code among the caller numbers requested by the user to the area code stored in the memory unit, if the two area codes are the same, only the phone number excluding the area code is transmitted from the sender number to be returned. If the area code is not the same, the wireless terminal device implementing the caller number reply function, characterized in that it comprises a CPU that performs the function of transmitting the caller number to be returned as it is.