KR20040012280A - Mobile telephone terminal - Google Patents

Abstract

PURPOSE: A mobile terminal is provided to install memory chips necessary for application fields in an exterior memory card. CONSTITUTION: A mobile terminal comprises a memory card installation part(24) to insert and eject a memory card(30). A control part(16), connected to a memory part(23), a keypad(14), a display part(15), an RF module(12), a baseband processing part(13), and a CODEC(17), accesses the memory card(30) through the memory card installation part(24). The memory part(23) comprises an NOR-type flash memory and an SRAM(Static Random Access Memory). The memory card(30) comprises memory chips, a clock generator, and a control part. The clock generator generates various clocks that the memory chips and the control part require. The control part of the memory card(30) executes the data transmission between the memory chips and the control part of the mobile terminal through signal transmit-receive ports.

Description

Mobile phone terminal {MOBILE TELEPHONE TERMINAL}

The present invention relates to a mobile phone terminal, and more particularly to a mobile phone terminal capable of performing various functions.

Recently, with the development of semiconductor integrated technology and communication technology, mobile phone terminals can perform various functions such as MP3 player, GPS, wireless internet and video communication as well as voice call or simple data communication.

However, each time that feature was added, one of the necessary elements was the difficulty due to lack of storage space, or memory. Especially in the case of small low power consumption products such as mobile phones, the addition of memory hardware has caused problems in the production of the product. In recent years, small memory chips have been developed to solve this problem somewhat.

The number of small memory cards shipped in 2002 was 39.5 million, about 2.4 times the year before. By type, Smart Media (SMC: Smart Media Card) accounts for 38% of the market size, the highest component ratio, followed by Compact Flash (CFC) 33%. In addition, Memory Stick has been actively installed by Sony, a standard producer, and has gained a high share in the digital camera market, which is the center of demand for small memory cards. . SD (Secure Digital) cards can not deny the late feelings compared to memory sticks, but they are trying to acquire demand by rapidly lowering prices. Multi-Media Cards (MMCs) account for 10% of the total number of products installed in Japan, although there are few products available in the Japanese market. As mentioned above, most of the cards currently on the market are SMC, CFC, Memory Stick, SD, MMC, etc. Applications are also used for existing MP3, digital camera, and PC data storage. Recently, such a memory card is provided in a mobile phone terminal to enable various functions of the mobile phone terminal.

However, there is a problem that different types of memory devices require different types of memory devices. Table 1 below summarizes the memory types required by mobile phone terminal applications.

In order to diversify the functions of the mobile phone terminal, it is very inefficient to provide all the memory chips as shown in Table 1 in the mobile phone terminal because the size of the mobile phone terminal is increased and the production cost is increased.

Accordingly, an object of the present invention is to provide a mobile phone terminal that can be used by externally connecting the memory chips required in the application field.

1 is a view showing the configuration of a mobile telephone terminal according to a preferred embodiment of the present invention; And

2 is a view showing a schematic configuration of a memory card.

* Description of the main parts of the drawings

10 mobile phone terminal 11: antenna

12: RF module 13: baseband processing unit

14 keypad 15 display unit

16 control unit 17 codec

18: amplifier 19: microphone

20: speaker 21: linker

22: vibrator 23: memory

24: memory card mounting portion 30: memory card

31 memory chips 32 clock generator

33: control unit

(Configuration)

According to an aspect of the present invention for achieving the above object, a mobile telephone terminal includes: a memory card for detaching a memory card, storing data in the memory card, and reading data stored in the memory card; And a control unit for accessing the memory card through a mounting unit and the memory card mounting unit.

The memory card includes at least one of memory chips such as NOR flash memory, NAND flash memory, SRAM, UtRAM, and Mobile SDRAM.

(Example)

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing the configuration of a mobile phone terminal according to a preferred embodiment of the present invention. Referring to FIG. 1, the mobile phone terminal 10 further includes a memory card mounting portion 24 that can attach and detach the memory card 30 to a conventional mobile phone terminal. 1, a memory unit 23, a keypad 14, a display unit 15, a radio frequency (RF) module 12, a baseband processor 13, and a coder-decoder 17 are illustrated in FIG. 1. The control unit 16 connected to the controller performs voice signals and data processing in accordance with a protocol for a general telephone call or data communication, and controls each part of the mobile phone. The memory card mounting unit 24 according to the present invention is described below. The memory card 30 is accessed through. In the following description, a description of the processing and control of the control unit 16 for a conventional telephone call or data communication is omitted.

The memory unit 23 connected to the controller 16 includes a NOR-type FALSH memory and a static random access memory (SRAM). The SRAM is provided as a working memory of the controller 200. The flash memory provides an area for storing various updatable storage data.

The keypad 14 includes various keys including numeric keys to provide the controller 16 with key input input by a user. The display unit 15 typically includes a liquid crystal display (LCD), and converts various types of information into an image IF (Intermediate Frequency) signal under the control of the controller 16, and outputs the information to the baseband processor 13 to output the baseband processor ( 13) The IF signal input from 13) is converted into an RF signal and transmitted.

The baseband processor 13 is a baseband analog ASIC (BBA) that provides an interface between the controller 16 and the RF module 12. The baseband processor 13 converts a baseband digital signal applied from the controller 16 into an analog IF signal. Applied to the RF module 12, the analog IF signal applied from the RF module 12 is converted into a digital signal of the baseband and provided to the controller 16. The codec 17 connected to the controller 16 outputs a voice signal to the speaker 20 through the amplifier 18. The amplifying unit 18 amplifies the voice signal input from the microphone 19 or the voice signal output to the speaker 20. The volume of the speaker 20 and the gain of the microphone 19 are controlled by the control unit 16. Adjust accordingly. The ringer 21 generates a ringtone under the control of the controller 16, and the vibrator 22 generates vibration under the control of the controller 16.

The memory card 30 is attached to or detached from the memory card mounting portion 24 added according to the present invention. In this example, the memory card mounting unit 24 is used. However, an adapter for attaching and detaching the memory card 30 may be made to be connected to a data port (not shown) of the mobile telephone terminal 10.

In the mobile telephone terminal 10 as described above, the user mounts the memory card 30 to the memory card mounting portion 24 as necessary. A schematic configuration of the memory card 30 is shown in FIG. 2, the memory card 30 may include memory chips 31, a clock generator 32, and a controller 33. The memory chips 31 are a combination of memory chips such as NOR flash memory, NAND flash memory, SRAM, UtRAM, and Mobile SDRAM required for various applications of the mobile switching terminal 10. In order to miniaturize the memory card 30, two or more memory chips may be mounted in a multi chip package (MCP).

The clock generator 32 generates various clock signals required by the memory chips 31 and the controller 33. The control unit 33 performs data transmission between the control unit 16 and the memory chips 31 in the mobile phone terminal 10 through the signal transmission / reception terminals 34.

For example, in order to utilize the portable terminal 10 as an EVDO, a memory card mounted with a NOR flash memory, a NAND flash memory, and an SRAM required to perform the EVDO is connected to the memory card mounting part 24 of the mobile phone terminal 10. Just do it. In order to use the mobile phone terminal 10 as a VOD, a memory card mounted with a NOR flash memory and a NAND flash memory may be connected to the memory card mounting unit 24.

While the invention has been described using exemplary preferred embodiments, it will be understood that the scope of the invention is not limited to the disclosed embodiments. Rather, the scope of the present invention is intended to include all of the various modifications and similar configurations. Accordingly, the claims should be construed as broadly as possible to cover all such modifications and similar constructions.

According to the present invention, the mobile phone terminal includes only the memories necessary for a telephone call or data communication, and the memories necessary for performing additional functions are provided in an external memory card to achieve the miniaturization of the mobile phone terminal while the user's demand is reduced. It can provide various functions according to.

Claims (2)

In a mobile phone terminal: A memory card mounting unit for detaching a memory card, storing data in the memory card, and reading data stored in the memory card; And And a control unit for accessing the memory card through the memory card mounting unit. The method of claim 1, The memory card, A mobile phone terminal comprising at least one of memory chips such as NOR flash memory, NAND flash memory, SRAM, UtRAM and Mobile SDRAM.