KR100677327B1 - Mobile communication terminal with dual operating system - Google Patents

Abstract

The present invention relates to a mobile communication terminal having a dual operating system, the conventional mobile communication terminal is configured to be equipped with a single operating system only on the modem chipset, even if it is equipped with a modem chipset and a multimedia chipset internally, and operates on the modem chipset Since a single operating system recognizes the multimedia chipset as a simple memory device or a peripheral device and operates it manually, it is difficult to effectively use the functions of the multimedia chipset. In addition, there is a problem that there is no means for the user to manage the application running under the operating system because the operating system dedicated to the mobile communication terminal, there is no application and data compatibility with personal computers or heterogeneous terminals. In view of the above problems, the present invention configures a working memory and a code storage memory in a modem chipset in a mobile communication terminal having both a modem chipset and a multimedia chipset to mount a first operating system, and the multimedia chipset also constitutes a separate working memory. In addition, by mounting a general-purpose second operating system that operates as a boot code of the second operating system provided by the modem chipset, many applications and data operating in the second operating system can be used in a mobile communication terminal without processing. As the first operating system determines whether to use the second operating system while maximizing the utilization, it is possible to suppress power consumption.

Description

Mobile communication terminal with dual operating system {MOBILE COMMUNICATION TERMINAL WITH DUAL OPERATING SYSTEM}

1 is an example showing the configuration of a conventional mobile communication terminal.

Figure 2 is an example showing the configuration of an embodiment of the present invention.

Figure 3 is an example showing the configuration of another embodiment of the present invention.

*** Explanation of symbols for main parts of drawing ***

200: modem chipset 210: working memory

220: RF block 230: code storage unit

240: sound processor 250: multimedia chipset

260: primary display 270: secondary display

280: working memory 290: universal serial communication port

300, 500: system interface 310, 510: multimedia interface

400: dual port memory

The present invention relates to a mobile communication terminal having a dual operating system, and in particular, by changing the structure of a mobile communication terminal to which a modem chipset and a multimedia chipset, each of which is provided with a control unit, are simultaneously applied so that a different operating system is installed in each of the modem chipset and the multimedia chipset. The present invention relates to a mobile communication terminal having a dual operating system with increased compatibility.

As the use of mobile communication terminals has rapidly spread and the user base has expanded, the mobile communication terminal market has been greatly expanded. Therefore, many mobile communication terminal developers are trying to develop a mobile communication terminal that can accommodate the needs of many users.

Looking at the prominent development direction of the mobile communication terminal, it can be seen that the focus on the more colorful screen, faster processing speed, higher level multimedia utilization.

Therefore, the addition of a multimedia chipset that specializes only in multimedia-related functions to a mobile communication terminal driven only by a modem chipset in charge of processing and main control functions related to communication has made it possible to significantly improve multimedia processing. Modem chipsets, which have reduced the burden on the part, have increased the performance of the application.

Therefore, most recently released mobile communication terminals are equipped with a modem chipset and a multimedia chipset having such a separate controller (CPI).

FIG. 1 is a block diagram illustrating a schematic system configuration of a conventional mobile communication terminal. As shown in FIG. 1, the modem chipset 10 is used as a main controller, and the multimedia chipset 60 is used only for multimedia related processing.

First, referring to a system configuration of a conventional mobile communication terminal, the modem chipset 10 is regarded as a main controller, and the CPI included in the modem chipset 10 is used as a main controller. The modem chipset 10 uses a method of managing it as a kind of memory or input / output unit. This uses the concept of memory mapped IO used to control peripheral devices in personal computers.

That is, an operating system (OS) for overall system operation is designed to be mounted on the modem chipset 10 (for example, Rex) to drive all modules on the base thereof. Accordingly, the modem chipset 10 is connected to a code storage memory 40 in which an operating program is stored and a working memory 20 for temporarily storing information necessary for operation, and various system interfaces 100 and sound processing units 50 are provided. Is managed by the modem chipset 10. The modem chipset 10 also manages the RF block 30 for communication.

In addition, the modem chipset 10 equipped with the single operating system includes a multimedia chipset 60 configured to manage the main display unit 70, the auxiliary display unit 80, and the camera 80 to display and display the multimedia unit. Manage this yourself. That is, the multimedia chipset 60 from the standpoint of the modem chipset 10 is regarded as a kind of memory or a peripheral device for controlling a camera or a display unit, and is controlled in a direct or indirect manner using an address, data, and a control signal.

Therefore, in the conventional configuration, since an operating system for a mobile communication terminal is mounted in the modem chipset 10, an application operating under the operating system is also limited to an application for a mobile communication terminal, and a user may not intervene in the management portion of such an application at all. There is a problem that the user's request to use the new function is not reflected at all. That is, an application or data that can be used or managed in a personal computer is not available in an operating system dedicated to a mobile communication terminal, and even such an attempt is fundamentally impossible.

In addition, the modem chipset 10 should always control the operation of the multimedia chipset 60 because the controller is embedded therein so that the multimedia chipset 60 having excellent performance is used as a passive device for simple multimedia processing. Since the results must be processed, the performance of the actual multimedia chipset 60 cannot be fully utilized, and a large part of the control capacity of the modem chipset 10 must be devoted to driving the multimedia chipset 60.

Occasionally, there are devices that can use some of the functions of the mobile communication terminal while using an operating system (Windows CE, Palm operating system, Cellbig operating system, etc.) that is compatible with applications that can be managed on a personal computer such as a PDA phone. Even in this case, since the operating system uses a function block for wireless communication as a simple peripheral concept while using a single operating system, there is a problem in that an application for a mobile communication terminal cannot be used.

 As described above, the conventional mobile communication terminal is configured to mount a single operating system only on the modem chipset even when the modem chipset and the multimedia chipset are internally provided, and the single operating system running on the modem chipset uses the multimedia chipset as a simple memory device. Because it is recognized as a peripheral device and manually operated, there was a problem that it was difficult to effectively use the functions of the multimedia chipset. In addition, there is a problem that there is no means for the user to manage the application running under the operating system because the operating system dedicated to the mobile communication terminal, there is no application and data compatibility with personal computers or heterogeneous terminals.

In view of the above problems, the present invention configures a working memory and a code storage memory in a modem chipset in a mobile communication terminal having both a modem chipset and a multimedia chipset to mount a first operating system, and the multimedia chipset also constitutes a separate working memory. In addition, it is equipped with a general purpose second operating system that operates as a boot code of the second operating system provided by the modem chipset, so that many applications and data operating under the second operating system can be used, and multimedia related processing can be performed. The objective is to provide a mobile communication terminal with a dual operating system that can be handled without continuous management of the chipset.

The present invention for achieving the above object, and provides a communication and mobile communication system interface and the modem chipset operating the first operating system; Second control means for providing a display unit and a multimedia interface and for selectively operating the second operating system; And data providing means for providing a boot code to the modem chipset and the multimedia chipset.

In addition, the present invention includes a first control unit for operating a first operating system for communication and mobile communication; A second control unit for operating a second operating system for providing a user interface and a multimedia interface for communication and mobile communication independently of the first operating system; Boot code for booting the first operating system and the second operating system is stored, characterized in that it comprises a data providing means for controlling the access of the boot code under the control of the first control unit.

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Hereinafter, with reference to the accompanying drawings, the present invention configured as described above will be described in detail.

2 is a block diagram showing an embodiment of the present invention, as shown in the modem chipset 200, the first operating system (mobile communication terminal operating system) operating because the modem chipset working memory 210 to support this; Is connected, and an RF block 220 for wireless communication is connected. In addition, it provides a system interface 300 used for the configuration of the basic mobile communication terminal system. In addition, a working memory 280 for the multimedia chipset is added to enable the second operating system (general purpose operating system for compatibility extension) newly proposed by the present invention to operate in the multimedia chipset 250, and by the second operating system New configurations may be added for various multimedia interfaces 310 that may be provided.

In general, the universal serial communication bus 290 is an interface that can be provided by both the modem chipset 200 and the multimedia chipset 250, which is an interface for communication, at the same time, the modem chipset 200 and the multimedia chipset 250 It is used as a means to provide a direct data transfer path of the.

It should be noted that the present invention does not set the first operating system operating in the modem chipset 200 and the second operating system operating in the multimedia chipset 250 in an equal relationship. In other words, if two separate operating systems operate all the time, power consumption, confusion in use, and limited device control conflicts may occur. To prevent this, the first operating system used for a mobile terminal is used as a basic operating system. The second operating system operating in the multimedia chipset 250 may be used as an auxiliary operating system due to selection of data or a need for data manipulation. Therefore, the second operating system does not operate immediately after power is applied to the system, and the modem chipset 200 provides data for providing the boot code for the operation of the second operating system (general purpose serial communication bus 290 in this embodiment). Optionally initialize the second operating system by providing it via.

The data providing means may also be used as a new path for data exchange when the first operating system and the second operating system are simultaneously driven.

When the second operating system is not initialized, the multimedia chipset 250 manages the display units 260 and 270 and the multimedia interface 310 connected to each other under the direct control of the modem chipset 200. In this case, the power consumption of the multimedia chipset 250 may be designed to be significantly reduced compared to when the second operating system is operating.

FIG. 3 shows a configuration of another embodiment of the present invention. The basic configuration is similar to that of FIG. 2, except that the modem chipset 200 and the multimedia chipset 250 each provide a universal serial bus interface 500 and 510. The difference is that the modem chipset 200 provides the boot code for the operation of the second operating system using the dual port memory (DPRAM in this embodiment) 400.

In this case, the dual port memory 400 is also used as a data providing means between the modem chipset 200 and the multimedia chipset 250, as well as providing a boot code, the first operating system and the second operating system are used at the same time Can be used for fast and independent data exchange.

Since the second operating system has a purpose to be used as a means for enhancing the compatibility of applications and data, it is preferable that the second operating system be a general-purpose operating system capable of file management on a personal computer and compatible with applications and data of heterogeneous terminals of the same operating system. Accordingly, the second operating system may be one of operating systems for PDAs including an operating system for Windows CE, Palm, Pocket PC, and celvic.

As described above, the first operating system, which is basically loaded on the modem chipset, is always used for basic mobile communication terminal operation, and the second operating system is selectively used only when the application or data available in the operating system is required. In this way, it is possible to significantly reduce the power consumption while significantly expanding the usage area of the mobile communication terminal. In addition, when the second operating system is used, the first operating system operating in the modem chipset may instruct the second operating system to perform a task by itself by instructing the second operating system to perform a predetermined operation without continuously controlling the multimedia chipset. Thus, the burden on the first operating system is reduced.

As described above, the mobile communication terminal having the dual operating system of the present invention configures the working memory and the code storage memory in the modem chipset to mount the first operating system in the mobile communication terminal having both the modem chipset and the multimedia chipset. By configuring a separate working memory and by mounting a general-purpose second operating system that operates as a boot code of a second operating system provided by the modem chipset, many applications and data operating in the second operating system are not processed. As it can be used in a mobile communication terminal, the first operating system determines whether to use the second operating system while maximizing utilization, thereby reducing power consumption.

Claims (9)

A modem chipset providing a communication and mobile communication system interface and operating with a first operating system; A multimedia chipset providing a display unit and a multimedia interface, the second operating system being selectively operated; And a data providing means for providing a boot code to the modem chipset and the multimedia chipset. The multimedia chipset of claim 1, wherein the multimedia chipset provided by the chipset includes at least one of an interface for camera operation, various communication interfaces for external communication, and a memory expansion interface for reading and writing external memory devices. Mobile communication terminal having a dual operating system, characterized in that. The mobile terminal of claim 1, wherein the modem chipset and the multimedia chipset are connected by a universal serial communication bus. The mobile terminal of claim 1, wherein the modem chipset and the multimedia chipset further include dual port memories that can be individually accessed. The mobile communication terminal of claim 1, wherein the multimedia chipset is controlled by the modem chipset and directly controlled by the modem chipset when the multimedia chipset does not boot. The mobile communication terminal of claim 1, wherein the booting code for the multimedia chipset is a code for loading a general-purpose operating system compatible with a heterogeneous terminal and an application and data. A modem chipset on which the first operating system for communication and mobile communication is operated; A multimedia chipset in which a second operating system for providing a user interface and a multimedia interface for communication and mobile communication is operated independently of the first operating system; And a data providing means for storing the boot code for booting the first operating system and the second operating system and controlling the access of the boot code under the control of the first control unit. The terminal of claim 7, wherein the modem chipset is a mobile communication terminal modem, the multimedia chipset is a multimedia control unit that independently performs a multimedia related function, and the multimedia control unit is controlled by the boot code access control of the mobile terminal modem. A mobile communication terminal having a dual operating system, which is operated by a separate operating system different from a modem or directly controlled by the terminal modem. 8. The method of claim 7, wherein the modem chipset performs communications and mobile communications under the management of the first operating system, the multimedia chipset is controlled by a separate second operating system, and the modem chipset and the multimedia chipset perform different tasks. A mobile communication terminal having a dual operating system, characterized in that it can be carried out simultaneously without mutual interference.

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