KR19990046493A - Handphone for using the plural nation - Google Patents

Abstract

The present invention relates to an international public personal mobile communication device that allows calls from anywhere in the world. In the personal mobile communication device, at least one slot among CDMA, AMPS, GSM, and TACS in which different wireless communication protocols are stored is inserted into the personal mobile communication device, and each slot corresponds to a corresponding communication method. Suitable hierarchical control, signal processing processor and signal conversion, and hierarchical control program are arranged to operate organically with each other. Accordingly, since one personal mobile communication device can use personal mobile communication services of many countries, there is no need to purchase personal mobile communication devices used in other regions, and it is much cheaper than the communication fee using satellite communication. There is an effect that can be reduced, and the use area that serves as a plurality of personal mobile communication devices with one personal mobile communication device is expanded, thereby maximizing convenience.

Description

International public personal mobile communication device {Handphone for using the plural nation}

The present invention relates to an international public personal mobile communication device, and more particularly, to an international public personal mobile communication device capable of making a call in any region of the world.

In general, the personal mobile communication device is for a personal mobile communication service using a frequency band of 1.8 GHz, and the demand for communication devices is gradually increasing for prompt information reception. The subscriber's personal phone number is set, and the subscriber can access the phone with other personal mobile communication devices as well as other phones anytime, anywhere, and conveniently and quickly to deliver a message. There is a tendency.

However, such a personal mobile communication device is provided with a communication device of any one of TDMA (TIME DIVISION MULTI ACCESS) and CDMA (CODE DIVISION MULTI ACCESS) set as a communication method used in Korea. There is a problem in that the communication connection is not available in the United States, Japan and Europe using the.

In order to solve this problem, satellite phones using satellites have been developed, but the satellite phones are very expensive and costly call charges, and their volume is so large that they cannot be easily handled. There is a problem that the portability is inconvenient. In addition, there is a problem that a person making a call is hesitant because of such an expensive call burden, and the amount of incoming calls is small.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an international public personal mobile communication device that can receive international communication services in the United States, Japan, Europe, etc. with one personal mobile communication device.

1 is an exploded perspective view showing an international public personal portable communication device according to the present invention,

2 is a detailed block diagram showing an international public personal portable communication device according to the present invention.

-Explanation of symbols for the main parts of the drawings-

11; Device body 13; Key input section

15; LCD 17; Receptacle

19; Slot 21; Conductive metal

23; Detachable induction part 25; Breakaway Jaw

27; Duplex 29; Low noise amplifier

31; Band pass filter 33; Mix part

35; Automatic gain controller 37; Radio wave receiver

39; Power amplifier 41; Radio wave transmitter

43; Base band section 45; Mobile station side / demodulation unit

49; D / A converter 53; A / D converter

55; LCD driver 57; Hierarchical Control CPU

59; Memory

According to the present invention, at least one slot of CDMA, AMPS, GSM, TACS in which different wireless communication protocols are stored is inserted into the personal mobile communication device, and each slot corresponds to the corresponding slot. A layer control suitable for a communication method, a signal processing processor and a signal conversion, and a layer control program are achieved by an international public personal mobile communication device arranged to operate organically with each other.

Hereinafter, with reference to the accompanying drawings will be described in detail the international public personal mobile communication device according to the present invention. 1 is an exploded perspective view showing an international public personal mobile communication device according to the present invention, Figure 2 is a detailed block diagram showing an international public personal mobile communication device according to the present invention.

As shown in FIG. 1, the international public personal portable communication device includes a device body 11 accommodating a plurality of building blocks for personal mobile communication, and a subscriber number to communicate with the user for communication and a command to start communication thereof. It is provided on the key input unit 13 formed on the front of the device body 11 and the key input unit 13 for input, and is input through the key input unit 13 to visually respond to the user according to the input It has an LCD 15 for displaying. On the rear of the key input unit 13, a rechargeable battery 16 for supplying operation power to the system is detachably installed. A rectangular accommodating portion 17 is formed on the rear surface of the LCD 15, and the accommodating portion 17 has at least one of CDMA, Advence Mobil Phone System (AMPS), Groupe Special Mobil (GSM), and TACS. Either slot 19 is removably received.

Here, the slot 19 is a unique number of each machine is set, the unique number is registered in the mobile communication base station of the country desired by the user is given a subscriber number. In this case, a plurality of conductive metals 21 are exposed in the slot 19 so as to be electrically connected to a connection part (not shown) provided inside the accommodating part 17. In addition, the slot 19 is formed with a detachable guide 23 slidingly coupled to the opposite side of the conductive metal 21 in order to facilitate the detachable to the receiving portion 17. At the engaging portion of the slot 19 and the detachable induction part 23, a separation preventing jaw 25 is formed toward the other side to prevent separation and separation in the insertion direction.

On the other hand, the slot 19, each communication scheme, namely CDMA, Advance Mobil Phone System (AMPS), Groupe Special Mobil (GSM), layer control of any one of the communication protocols, signal processing processor and In order to enable signal conversion and hierarchical control programs to operate organically, corresponding core components of communication are arranged. The CDMA is used as a wireless communication standard in Korea and Hong Kong, the AMPS is used as a wireless communication standard in Australia, Singapore and the Americas, the TACS is used as a wireless communication standard in Japan, and the GSM is used in most other countries ( In Asia, the Middle East, Africa, and Europe).

Referring to the preferred embodiment of the international public personal mobile communication device of the present invention equipped with the slot 19 for the CDMA as described above. That is, as shown in Fig. 2, the duplexer 27 for designating the transmission / reception path of radio waves, the low noise amplifier 29, the band pass filter 31, the mixer 33, A radio wave receiver 37 including an automatic gain controller 35; A radio wave transmitter (41) comprising a power amplifier (39) connected to the final stage in reverse with the radio wave receiver (37); A baseband unit 43 for converting the radio wave signal of the radio wave transmitter / receiver unit 41 into an analog or digital signal corresponding to an intermediate frequency by up / down converting the radio wave signal; A mobile station modulator / demodulator (45) for modulating or demodulating and outputting the output signal of the baseband unit (43) by the CDMA protocol; A D / A converter 49 for analog-converting the digital signal demodulated through the mobile station modulator / demodulator 45 to the speaker 47; An A / D converter 53 for converting an analog audio signal input through the microphone 51 into a digital signal; A key input unit 13 for inputting a user's key signal; An LCD driver (55) for driving the LCD (15) which shows the user the situation operated by the key input unit (13); A hierarchical control CPU 57 which reads data necessary for a mobile communication service and performs the CDMA hierarchical control; The memory unit 59 stores data for the hierarchical control.

Here, the hierarchical control CPU 57, the mobile station modulation / demodulation section 45, and the memory section 59 are arranged to be accommodated in the slot 19, and such a slot 19 is a detachable guide section 23. It is simply coupled to the device main body 11 by. At this time, a slot 19 having a configuration of another communication system, that is, an Advence Mobil Phone System (AMPS), a Groupe Special Mobil (GSM), and a TACS communication system, can be mounted on the device body 11 at a desired time. Can be.

According to the present invention as described above, when a user travels abroad or travels abroad, a slot suitable for the communication system of the destination can be easily mounted on the device body.

The present invention does not require the purchase of personal mobile communication devices used in other regions because it is possible to use personal mobile communication services of many countries with one personal mobile communication device, and it is economically cheaper because it is much cheaper than the communication fee using satellite communication. There is an effect that can be reduced.

Therefore, the use area that serves as a plurality of personal mobile communication devices is expanded to one personal mobile communication device, thereby maximizing convenience.

Claims (1)

In a personal mobile communication device; At least one slot of CDMA, AMPS, GSM, and TACS in which different wireless communication protocols are stored is inserted into the personal mobile communication device, and each slot includes hierarchical control suitable for a corresponding communication method. An international public personal mobile communication device, characterized in that the signal processing processor and the signal conversion and the hierarchical control program are arranged to operate organically with each other.