KR101478562B1 - Mobile terminal and its file search method - Google Patents

Abstract

The present invention relates to a mobile terminal and a method for searching for a file of the mobile terminal, and is for quickly searching for a desired one of files or directories (hereinafter, referred to as 'files') stored in the mobile terminal. According to the present invention, files named by a character string are sequentially displayed on the screen in accordance with the rank of the character string, a user's selection signal for searching the file is input through the first and second scroll input units, The present invention provides a portable terminal and a method of searching for the file. In particular, when the focus is moved according to the selection signal, when the first scroll input unit scrolls, the focus is shifted to a file neighboring the focused file. When the second scroll input unit is scrolled, the focus is shifted from the focused file to a file of a next character string of the search string set in the focused file.

Focus, move, file, search, index

Description

The present invention relates to a mobile terminal and a method for searching for the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable terminal and a method for performing a function of the portable terminal, and more particularly, to a portable terminal and a method for searching a file of the portable terminal.

As the development of information and communication technologies and the manufacturing technology of portable terminals have been developed, various types of portable terminals that can perform various applications and are easy to carry have been introduced. The portable terminal employs a large-capacity memory unit so as to store various data including various applications.

On the other hand, the size of the screen is small because the portable terminal is made small because of its ease of portability. Accordingly, when searching a directory or file (hereinafter, referred to as 'file') stored in the portable terminal, names of five or six files are displayed on the screen.

However, the larger the number of files stored in the portable terminal, the more time it takes to find a desired file. That is, the user searches for a desired file by using the direction key provided by the portable terminal. Normally, whenever the direction key is pressed, the focus moves in one file unit. Therefore, when the desired file is located at the bottom of the list, It can take.

Accordingly, an object of the present invention is to provide a portable terminal and a method of searching for a file thereof, in which a desired file can be quickly found.

In order to achieve the above object, a portable terminal according to the present invention includes an index engine, an input unit, and a decorator. The index engine sequentially displays the files named by the character string according to the rank of the character string. The input unit includes first and second scroll input units receiving a user's selection signal for searching the file. The decorator moves the focus according to the selection signal to focus the file. Particularly, when the first scroll input unit is scrolled, the decorator moves the focus to a file adjacent to the focused file and focuses the focused file. When the second scroll input unit is scrolled, the decorator moves the focused focus by moving the focus from the focused file to a file of a next character string of the search string set in the focused file.

A method for searching a file of a portable terminal according to the present invention includes a display process, an input process, and a focusing process. The display process sequentially displays the files named by the character string according to the order of the character string. The input process receives a user's selection signal for searching the file through the first and second scroll input units. The focusing process focuses a file in which focus is shifted according to the selection signal. In particular, in the focusing process, when the first scroll input unit is scrolled, the focus is moved to a file adjacent to the focused file to focus. When the second scroll input unit is scrolled, the focusing is performed by moving the focus from the focused file to a file of a next-ranked character string of the set search string in the focused file.

A portable terminal according to the present invention includes a first scroll input unit for moving a focus by one file and a second scroll input unit for moving focus from a currently focused file to a file of a next character string of a set search string of a poker file, So you can quickly find the file you want.

In particular, each time the second scroll input unit is pressed, the focus is quickly shifted to a file group including a character string of a desired file because the focus is skipped to a file of a character string of the next rank of the set search string of the currently focused file. Or a string expansion button to restrict a file group to which a file to be searched belongs and to quickly access a desired file by pressing the first or second scroll input unit within a limited group, can do.

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

Mobile terminal

1, a portable terminal 100 according to an embodiment of the present invention includes a control unit 10, an input unit 20, a memory unit 30, a display unit 40, an index engine 50 And a decorator 60).

The portable terminal 100 according to the present embodiment may be a mobile phone, a smart phone, a PDA (Personal Digital Assistant), an MP3 (Moving Picture Experts Group) layer 3 player, a portable multimedia player (PMP) Digital Multimedia Broadcasting), and other electronic devices having functions such as information processing, information provision, and communication.

The control unit 10 is a microprocessor that performs an overall control operation of the portable terminal 100. In particular, the control unit 10 controls file retrieval.

The input unit 20 provides a plurality of keys for operating the portable terminal 100 and generates a selection signal according to a user's selection of keys and transmits the selection signal to the control unit 10. [ The input unit 20 may be an input device such as a keypad, a pointing device such as a touch pad, a wheel key, or a touch screen.

The memory unit 30 stores a program necessary for controlling the operation of the portable terminal 100 and data generated during execution of the program, and includes at least one volatile memory device and a nonvolatile memory device. The memory unit 30 stores a file system for storing music, sound, image, text, and the like in a file or directory. The memory unit 30 stores a file search program for performing a quick file search in the file list.

The display unit 40 displays information stored in the memory unit 30 as well as various function menus executed in the mobile terminal 100. [ The display unit 40 sequentially displays files in a list form in the file search mode, and focuses on one of the files displayed on the screen. As the display unit 40, a liquid crystal display (LCD) or a touch screen may be used. The touch screen serves both as a display device and as an input device.

The index engine 50 sequentially displays the files named by the strings in accordance with the order of the strings. The index engine 50 displays an appropriate number of files in the form of a list within a range that the display 40 can accept. That is, the file typically has a name named by at least one character, and the index engine 50 sequentially displays it on the screen in accordance with the character string of the file name.

The decorator 60 moves the focus according to the user's selection signal through the input unit 20 to focus the file.

In the present embodiment, the index engine 50 and the decorator 60 are separated from the control unit 10 to be independent of each other, but the present invention is not limited thereto. For example, the control unit 10 may perform the functions of the index engine 50 or the decorator 50, or the index engine 50 and the decorator 60 may be implemented by one element.

The index engine 50 can display the files on the screen in a list according to the following rules. First, the name of a file can have N (N is a natural number) digits by combining letters, numbers, or special symbols.

First, when numbers, letters, and special symbols are placed in the same place, the file is displayed in the order of numbers, letters, and special symbols.

Second, in the case where the order is determined according to the types of numbers, letters, and special symbols, the higher the rank, the closer to the front of the list. For example, if all alphabets are included in the same place in the file name, the file names are displayed in alphabetical order.

Third, if there are a plurality of types of characters usable in the name of the file, and the order is determined, the higher the rank, the more forward the position is. For example, if the alphabet and Hangul are located at the same place in the file name, the alphabetical file name is displayed first.

Fourth, the smaller the number of digits, the closer to the front of the list. For example, if the file names are "ABC" and "AB", "AB" is displayed before "ABC".

For example, as shown in FIG. 10, the index engine 50 lists the files having file names of "A1, A2, AB, AZ, B21, B212, B22, B24, The list having the order of "A1, A2, AB, AZ, B21, B212, B22, B24, BA, C5, CD ..." At this time, an example in which the name of the file is composed of letters and numbers is disclosed.

In particular, the input unit 20 includes a first scroll input unit 21, a second scroll input unit 23, a character string expansion button 25, a character reduction button 27, and a selection button 29 for performing a quick file search . The first and second scroll input units 21 and 23 generate a selection signal corresponding to a scroll of the user having both directionality and transmit the selection signal to the control unit 10. The directionality of both sides can be any one of up-and-down scroll, left-right scroll, and scroll clockwise / counterclockwise. The string expanding button 25, the string reducing button 27, and the selecting button 29 generate a selection signal according to a user's pressing or touch and transmit the generated selection signal to the control unit 10. In this embodiment, the input unit 20 includes the first scroll input unit 21, the second scroll input unit 23, the character string expansion button 25, the character reduction button 27, and the selection button 29 , An alphanumeric key, a volume key, and the like.

The first scroll input unit 21, the second scroll input unit 23, the character string expansion button 25, the character string reduction button 27, and the selection button 29 are formed as shown in FIGS. And can be implemented in a portable terminal.

Referring to FIG. 2, the portable terminal 100a has a structure in which a display unit 40a is disposed above the front side and an input unit 20a is disposed below the display unit 40a.

The first and second scroll input units 21 and 23 are ring-shaped, and the second scroll input unit 23 is located inside the first scroll input unit 21. The first and second scroll input units 21 and 23 may be implemented as touch pads. The first and second scroll input units 21 and 23 receive the rotation scroll in the clockwise / counterclockwise direction.

The selection button 29 is positioned at the center of the second scroll input unit 23. [ In the first example, the string expanding button 25 and the string reducing button 27 are disposed close to the first scroll inputting unit 21 and the examples are arranged on both sides below the first scroll inputting unit 21.

Referring to FIGS. 3 and 4, the first and second scroll input units 21 and 23 are disposed with their long sides facing each other. The first and second scroll input units 21 and 23 are implemented as touch pads. In this example, the first scroll input unit 21 and the second scroll input unit 23 are arranged in parallel at regular intervals. The first and second scroll input portions 21 and 23 have been described as being arranged vertically parallel to each other in Fig. 3, and the example shown in Fig. 4 arranged parallel to the left and right.

However, the present invention is not limited to this example. The character string expansion button 25, the selection button 29, and the character reduction button 27 are located between the first and second scroll input units 21 and 23. That is, the string expansion button 25, the selection button 29, and the string reduction button 27 may be located outside the first and second scroll input units 21 and 23.

Referring to FIG. 5, the portable terminal 100d has a structure in which a display portion 40d is disposed above the front side and an input portion 20d is disposed below the display portion 40d.

The first and second scroll input portions 21 and 23 are bar-type, and the short sides of one side are disposed adjacent to each other. The first and second scroll input units 21 and 23 are wheel-shaped wheel keys. In this example, the first and second scroll input units 21 and 23 are arranged on the same line.

Although the string expanding button 25, the selecting button 29 and the string reducing button 27 have been described as being disposed below the first and second scroll input units 21 and 23, And can be disposed vertically with the scroll input units 21 and 23 as the center.

Referring to FIG. 6, the portable terminal 100e includes a first body 70 and a second body 80 connected to each other through a sliding hinge. The first main body 70 is provided with a display portion 40e above the front side and the first and second scroll input portions 22 and 23 below the display portion 40e. The second main body 80 has a letter number key 22 disposed on its front face. The alphanumeric key 20 is exposed to the outside by the sliding movement of the first main body 70 with respect to the second main body 80.

The first and second scroll input units 21 and 23 are ring-shaped, and the second scroll input unit 23 is located inside the first scroll input unit 21. The first and second scroll input units 21 and 23 may be implemented as touch pads. The first and second scroll input units 21 and 23 receive the rotation scroll in the clockwise / counterclockwise direction. The selection button 29 is positioned at the center of the second scroll input unit 23. [

The string expanding button 25 and the string reducing button 27 are not implemented as separate keys but can be mapped to two alphanumeric keys 22. In the present embodiment, the string expansion button 25 is mapped to the "1" key, and the string reduction button 27 is mapped to the "3" key. However, the present invention is not limited thereto.

In FIGS. 2, 5 and 6, the portable terminals 100a, 100d, and 100e are bar type and sliding type, but the present invention is not limited thereto. For example, the portable terminal may be implemented in various types such as a flip, a folder, and a swing. Although the portable terminal has been described as including the select button 27 and the select button 29, it may further include an alphanumeric key or a volume key.

On the other hand, according to the operation of the first scroll input unit 21, the second scroll input unit 23, the string expansion button 25, the string reduction button 27 or the selection button 29, the decorator 60 moves the focus . The focus can be moved up and down according to the scroll direction of the first scroll input unit 21 and the second scroll input unit 23. [

When the decorator 60 receives the scrolling selection signal from the controller 10, the decorator 60 moves the focus to a file neighboring the currently focused file and focuses the focused file. At this time, according to the scroll direction of the first scroll input unit 21, the decorator 21 moves the focus to a file immediately above or below the currently focused file.

When the decorator 60 receives the selection signal according to the scrolling of the second scroll input unit 23 from the control unit 10, the decorator 60 moves the focus to the file of the next ranked character string of the search string set in the file focused on the currently focused file . In accordance with the scroll direction of scrolling of the second scroll input unit 23, the decorator 60 moves the focus to the upper or lower file based on the currently focused file. In particular, as the first scroll input unit 21 scrolls, the focus moves to a neighboring file. As the second scroll input unit 23 scrolls, the focus moves across multiple files based on the current focused file You can move to the file at the jumped location.

The decorator 60 expands the length of the search string of the currently focused file when receiving the selection signal corresponding to the depression of the string expansion button 25 from the control unit 10. [ The decorator 60 may extend the search string of the focused file to one, a certain number, or one of the whole strings. At this time, the extension of the search string is extended by the extension number set sequentially from the next place based on the extended search string. If the search string is expanded in accordance with the pushing of the string expanding button, the decorator 60 maintains the expanded search string until an input for shrinking the expanded search string, for example, a string shrink button 27 is pressed.

2 to 6 illustrate an example in which the mobile terminal includes one string expanding button 25 and one string decrementing button 27 for expanding and narrowing the search string, but the present invention is not limited thereto. For example, the number of the alphanumeric key and the number of the search string can be mapped and used as a string expansion and reduction button. When the user presses the "1" key, the decorator searches for the string of the first digit. When the "2" key is pressed, the decorator searches for the string extending to the second digit. You can expand the string up to the first digit. In this case, the "1" key corresponds to the string reduction button, and the "2" key and the "3" key may correspond to the string expansion button. You can also map string expansion and reduction buttons to alphanumeric keys in a variety of other ways.

The decorator 60 reduces the length of the search string of the currently focused file when receiving the selection signal corresponding to the depression of the string reduction button 27 from the control unit 10. [ At this time, the decorator 60 reduces the search string of the focused file to one, a certain number, or one of the reference search strings. At this time, the reduction of the search string is performed by sequentially reducing the number of reduction from the last digit based on the pre-reduction search string. The reference search string may be a string of the first position of the file name, in which case the number of reference search strings is one. The length reduction of the search string is performed when there are two or more search strings of the currently focused file, and is not performed if the search string is one.

The decorator 60 performs focus movement for searching for a file in accordance with the combined operation of the first scroll input unit 21, the second scroll input unit 23, the character string expansion button 25 or the character string reduction button 27 . At this time, the function of the first scroll input unit 21 is performed irrespective of the number of search strings, even if the number of search strings varies due to the depression of the string expand button 25 and the string shrink button 27.

First, the decorator 60 expands the length of the search string of the currently focused file as described above when the decorator 60 receives the selection signal corresponding to the depression of the string expansion button 25 from the control unit 10. Then, when receiving a selection signal according to scrolling of the first scroll input unit 21 from the control unit 10, the decorator 60 moves the focus to a file adjacent to the focused file.

After the string expanding button 25 is pressed and the selection signal according to the scrolling of the second scroll input unit 23 is received from the control unit 10, the decorator 60 extracts the currently focused file The focus is shifted to a file having a character string of the next rank based on the character string following the expanded search string of the search string. At this time, the decorator 60 performs the movement of the focus according to the scrolling of the second scroll input unit 23 in the files including the extended search string. Accordingly, in the state in which the first or second scroll input unit 21 or 23 is scrolled to focus the file of the boundary position of the search string whose focus is extended (hereinafter referred to as a 'boundary file'), focus is shifted to the focused boundary file The decorator 60 does not move the focus placed in the boundary file to another file.

Meanwhile, as described above, the decorator 60 performs the movement of the focus according to the scrolling of the second scroll input unit 23 within the files including the extended search string. However, if the user scrolls the first scroll input unit 21 in the direction of moving the focus to the focused boundary file while the focus is focused on the boundary file by scrolling the first or second scroll input unit 21 or 23, (60) moves the focus to a file neighboring the boundary file. Then, the decorator 60 reduces the expanded search string to before the selection of the string expanding button 25.

The control unit 10 receives the selection signal corresponding to the depression of the selection button 29 and executes the focused file. For example, when the focused file is a directory, the control unit 10 can display the files included in the directory in a list form on the screen. If the focused file is a music file, the music file can be reproduced through the music player. If the focused file is an image file, the image file can be displayed through the image viewer. If the focused file is a text file, the text file can be displayed through the text viewer.

How to search for files

A file searching method of a mobile terminal according to an embodiment of the present invention will be described with reference to FIGS. 1 and 7. FIG.

In step S71, when the user requests file display through the input unit 20, the index engine 50 displays the files stored in the memory unit 30 in a list in a string order in accordance with the control of the controller 10 in step S73 do. That is, the index engine 50 sequentially displays the names of the files on the screen according to the rank of the string named in the file, and displays the files as a list. The index engine 50 displays an appropriate number of files within a range that can be accommodated by the screen of the display unit 40, and sequentially displays the files in the order from the topmost file. Conversely, the index engine 50 can sequentially display files from the lowest file. When the list is initially displayed on the screen, the index engine 50 places the focus on the file located at the top of the list. As will be described later, the decorator 60 moves the focus to another file in accordance with the user's selection signal through the input unit 20.

Next, in step S75, the control unit 10 determines whether a selection signal is input through the input unit 20 or not. At this time, the input unit 20 to which the selection signal is input includes at least one of the first scroll input unit 21, the second scroll input unit 23, the character string expansion button 25, and the character string reduction button 27.

If it is determined in step S75 that there is an input of a selection signal, the decorator 60 moves the focus according to the selection signal input in the currently focused file in step S77 to focus another file. The focus moving process, which is the S77 process of moving focus to retrieve a file, will be described later.

If it is determined in step S75 that there is no input of the selection signal or after step S77, the control unit 10 determines whether there is an input of the selection button 29 in step S78. The input of the selection button 29 is an operation performed when the user finds a desired file and wants to execute the found file. Accordingly, a desired file can be found immediately in step S73, or a desired file can be searched by performing a file searching process in steps S75 and S77.

If it is determined in step S78 that there is no input of the selection button 29, the control unit 10 repeatedly performs steps S75 through S78 according to the selection signal through the input unit 20 of the user. That is, when the user inputs a selection signal through the input unit 20 to search for a desired file, the control unit 10 repeatedly performs the processes of S75 to 78.

If it is determined in step S78 that there is an input of the selection button 29, the control unit 10 executes the focused file in step S79. That is, when the user finds a desired file, the user can press the select button 29 to execute the focused file.

The focus shift process of step S77 will be described with reference to FIGS. 1, 8, and 9. FIG. First, in step S81, the control unit 10 determines whether a selection signal is input from which input unit 20.

If it is determined in step S81 that the selection signal is input through the first scroll input unit 21, the decorator 60 moves the focus from the currently focused file to the next file in step S83. At this time, the next file is one of the files located on the upper and lower sides with respect to the currently focused file, and the focus moves to one of the upward and downward directions according to the scroll direction of the first scroll input unit 21. [

If it is determined in step S81 that the selection signal has been input through the second scroll input unit 23, in step S85, the decorator 60 focuses the focus of the currently focused file to a file of a character string of the next rank of the search string set in the focused file .

If it is determined in step S81 that the selection signal is inputted through the string expansion button 25, the decorator 20 performs step S87. First, in step S871, the decorator 60 extends the search string.

When the first or second scroll input unit 21 or 23 is scrolled in step S873, the control unit 10 determines whether a scroll has been input from the input unit 20 in step S875.

If it is determined in step S875 that the scroll is input through the first scroll input unit 21, the decorator 60 moves the focus to the next file in step S877. Then, in step S879, the decorator 60 determines whether the focused file is a file out of the boundary file.

If it is determined in step S879 that the file is not out of bounds, the decorator 60 determines whether there is an input of the string reduction button 27 in step S887.

If it is determined in step S879 that the file is out of bounds, or if the character string reduction button 27 is input as a result of the determination in step S887, the decorator 60 reduces the search string in step S889.

If it is determined in step S875 that scrolling is input through the second scroll input unit 23, the decorator 60 determines whether the currently focused file is a boundary file in step S881.

If it is determined in step S881 that the file is not a border file, the decorator 60 moves the focus from the currently focused file to a file having the next ranked character string in step S883.

If it is determined in step S881 that the file is a border file, the decorator 60 does not move the focus located in the file of the ranking order in step S885. In other words, in a state in which the first or second scroll input unit 21 or 23 is scrolled to focus the boundary file of the extended search string, the second scroll input unit 23 is moved in the direction to shift the focus to the focused boundary file When scrolling again, the decorator 60 does not move the focus located in the border file.

Then, the decorator 60 performs step S887.

The file searching method according to the present embodiment will now be described with reference to exemplary screens shown in FIGS. 1, 10 to 13 as follows. At this time, files named by names of "A1, A2, AB, AZ, B21, B212, B22, B24, BA, C5, CD ..." are stored in the memory unit 30. The focus can be moved up and down according to the scroll direction of the first scroll input unit 21 and the second scroll input unit 23. However, in the example of this screen, the case where the focus is scrolled in the downward direction is exemplified.

First, in step S73, the index engine 50 determines whether or not the index engine 50 is arranged in the order of "A1, A2, AB, AZ, B21, B212, B22, B24, BA, C5, A list of files can be displayed on the screen. At this time, an example in which the name of the file is composed of letters and numbers is disclosed. Actually, only a part of the list is displayed on the screen. When the list is first displayed on the screen, the index engine 50 places the focus on the file "A1" located at the top of the list. The search string is the first digit, which is the base search string.

S83 will be described with reference to FIG. First, as shown in Fig. 10 (A), when the first scroll input section 21 is scrolled while the focus is positioned on the file of "A1", the focus is shifted to "A1" Moves to the neighboring "A2". When the first scroll input unit 21 is again scrolled in the same direction, the focus shifts from "A2" to "B21" as shown in FIG. 10 (C). That is, as the first scroll input unit 21 scrolls, the focus moves sequentially from the currently focused file to the neighboring file.

Step S85 will be described with reference to FIG. First, as shown in Fig. 11 (A), when the second scroll input unit 23 is scrolled while the focus is located in the file of "AB", focus is set to "AB" B "which is the character of the next rank of the character string" A "is first displayed. When the second scroll input unit 23 is again scrolled, as shown in Fig. 11C, the focus is changed to "C5" in which "C", which is the character of the next rank of "B" Move. The search string is a string in the first position of the file name.

The process of S877 will be described with reference to FIG. 12 (A), when the first scroll input unit 21 is scrolled after the character string expansion button 25 is pressed in a state in which the focus is located in the file of "B21", as shown in FIG. 12 The focus shifts to "B212 " adjacent to" B21 ". When the first scroll input unit 21 is again scrolled, the focus shifts from "B212" to "B22" as shown in FIG. 12 (C). That is, even if the search string is expanded according to the input of the string expanding button 25, the focus moves from the currently focused file to the neighboring file when the first scroll input unit 21 is scrolled.

The steps S881 to S885 will be described with reference to Figs. 13A to 13D. 13 (A), when the character string expansion button 25 is pressed and the second scroll input unit 23 is scrolled in a state where the focus is located in the file of "B21", as shown in FIG. 13 (B) The focus shifts from "B21" to "B22 ". That is, when the string expand button 25 is pressed, the decorator 60 extends the search string to the second string. The decorator 60 searches for a character string "B2" next to the expanded search string of the currently focused file among the files "B21, B212, B22, and B24" To the file "B22" having the string "2 " in the next rank. At this time, the decorator 60 will focus on "B22" by skipping "B212" next to "B21" because the third character of "B212" is the same as "B21".

When the second scroll input section 23 is again scrolled, the focus shifts from "B22" to "B24" as shown in FIG. 13 (C).

When the second scroll input section 23 is scrolled, the focus does not move from "B24" as shown in Fig. 13 (D). The decorator 60 does not move the focus from "B24" because the focus focuses on the boundary file "B24 ", and there is no file with the extended search string" B2 & At this time, the control unit 10 can notify the user that the boundary of the extended search string has been reached through the warning sound or the pop-up window.

Steps S879 and S889 will be described with reference to FIGS. 13 (C) and 13 (E). 13 (E), the decorator 60 changes the focus from "B24" to "B24" as shown in FIG. 13 (E) BA " The decorator 60 reduces the search string to the first character string.

It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of specific examples for the purpose of understanding and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein. For example, in this embodiment, an example of focusing the entire file name in which the focus is located is disclosed, but the present invention is not limited thereto. That is, the color that focuses the entire file name and the color that focuses the search string can be distinguished so that the user can confirm the currently executing search string. Alternatively, only the search string of the file name can be focused.

And, if you press the string expand button, files with extended search string can be displayed differently from other files and focused files. For example, files with an extended search string may be blurred rather than focused files and brighter than other files.

1 is a block diagram illustrating a configuration of a mobile terminal according to an embodiment of the present invention.

2 is a plan view showing a first example of the portable terminal of FIG.

3 is a plan view showing a second example of an input unit of the portable terminal of FIG.

4 is a plan view showing a third example of an input unit of the portable terminal of FIG.

5 is a perspective view showing a fourth example of the portable terminal of FIG.

FIG. 6 is a perspective view illustrating a fifth example of the portable terminal of FIG. 1. FIG.

7 is a flowchart illustrating a method of searching a file in a mobile terminal according to an embodiment of the present invention.

8 is a flow chart showing the focus shift process of FIG.

FIG. 9 is a flowchart illustrating a focus shift process according to the depression of the character string expansion button of FIG.

FIGS. 10 to 13 are diagrams for explaining focus movement according to a user's selection signal through the input unit of FIG. 1,

10 is a view showing the movement of the focus according to the selection of the first scroll input unit,

11 is a view showing the movement of the focus according to the selection of the second scroll input unit,

12 is a view showing movement of focus according to selection of a character string expansion button and a first scroll input unit,

FIG. 13 is a diagram showing the movement of focus according to the selection of the first or second scroll input unit after the character string extension button is selected.

Description of the Related Art [0002]

10: control unit 20:

21: first scroll input unit 23: second scroll input unit

25: Expand string button 27: Decrease string button

29: Select button 30: Memory section

40: Display unit 50: Index engine

60: decorator 100: portable terminal

Claims (27)

An index engine for sequentially displaying files named by strings in accordance with the order of the strings; An input unit including a first scroll input unit and a second scroll input unit for receiving a user selection signal for searching for the file; And a decorator for focusing the file by moving focus according to the selection signal, The decorator When the first scroll input unit is scrolled, focusing is performed by moving the focus to an adjacent file in the focused file, Wherein when the second scroll input unit is scrolled, focusing is performed by moving the focus from the focused file to a file of a character string corresponding to an ascending or descending order of the search string set in the focused file. [2] The apparatus of claim 1, wherein the input unit further comprises a character string expanding button and a character string collapse button located close to the first and second scroll input units, The decorator Expanding the length of the search string of the focused file when the string expand button is pressed, And when the character string reduction button is pressed, the length of the search string of the focused file is reduced. 3. The mobile terminal of claim 2, wherein when the string expanding button is pressed, the adder decorator extends the search string of the focused file to one of a certain number or a whole string. The mobile terminal of claim 3, wherein, when the string reduction button is pressed, the decorator reduces the search string of the focused file to one of a predetermined number or a reference search string. 5. The apparatus of claim 4, And a selection button for selecting and executing the focused file. The method as claimed in claim 5, wherein, when the second scroll input unit is scrolled after the string expanding button is pressed, the decorator expands the search string set in the focused file, and among the files including the expanded search string, And moves the focus to a file having a character string corresponding to an ascending order or a descending order based on the character string following the expanded search string of the file. The mobile terminal of claim 6, wherein the decorator performs the movement of the focus according to scrolling of the second scroll input unit in files including an extended search string. 8. The method of claim 7, further comprising: scrolling the first or second scroll input unit to focus the file of the boundary ranking of the extended search string, And when the scroll input unit is scrolled again, the decorator does not move the focus. The method as claimed in claim 8, further comprising: scrolling the first or second scroll input unit to focus the file of the boundary ranking of the extended search string, When the scroll input unit is scrolled again, the decorator shifts the focus to a file adjacent to the focused file, and reduces the expanded search string to before the selection of the string extension button. The portable terminal of claim 5, wherein the first and second scroll input units are any one of a touch pad and a wheel key. The mobile terminal of claim 10, wherein the first and second scroll input units are ring-shaped, and the second scroll input unit is located inside the first scroll input unit. The method of claim 11, wherein the selection button is located at the center of the second scroll input unit, Wherein the character string expanding button and the character string reducing button are disposed in proximity to the first scroll input unit. The portable terminal of claim 5, wherein the first and second scroll input units are bar-type, and the first and second scroll input units are disposed such that long sides of one side are opposite to each other. 14. The mobile terminal of claim 13, wherein the string expanding button, the selection button, and the string reducing button are located between the first and second scroll inputting portions. The portable terminal of claim 5, wherein the first and second scroll input units are bar-type, and the first and second scroll input units are disposed such that short sides of one side are adjacent to each other. [16] The mobile terminal of claim 15, wherein the string expanding button, the selecting button, and the string reducing button are located above or below the first and second scroll inputting units. 6. The apparatus of claim 5, wherein the input unit further comprises a plurality of alphanumeric keys, Wherein the character string expansion button and the character reduction button are mapped to at least two character keys. 18. The mobile terminal of claim 17, wherein the number of the character strings is mapped to the number of the alphanumeric keys. The portable terminal according to any one of claims 1 to 18, wherein the set search string is at least one. Displaying the files named by the character string sequentially on the screen according to the order of the character string; An input step of receiving a user selection signal for searching for the file through the first and second scroll input units; And a focusing step of focusing a file in which focus is moved according to the selection signal, The focusing process includes: When the first scroll input unit is scrolled, focusing is performed by moving the focus to an adjacent file in the focused file, When the second scroll input unit is scrolled, focusing is performed by moving the focus from the focused file to a file of a character string corresponding to an ascending order or a descending order of the search string set in the focused file, . The method as claimed in claim 20, And expanding the search string to one of a certain number or a whole string when the string expanding button is pressed in the input process. 22. The method of claim 21, The method of claim 1, wherein the step of reducing the number of search strings comprises the step of reducing the search string to one of a predetermined number or a reference search string. 23. The method of claim 22, Wherein when the second scroll input unit is scrolled after the string expanding button is pressed in the input step, the search string set in the focused file is expanded, and in the ascending order of the extended search string among the files including the previously set search string Or moves the focus to a file of a character string corresponding to a descending order. 24. The method of claim 23, Wherein the input of the character string is performed in the file group by moving the focus according to scrolling of the second scroll input unit after pressing the string expanding button. 25. The method of claim 24, Scrolling the first or second scroll input unit and scrolling the second scroll input unit in the direction of moving the focus to the focused file while focusing the file of the boundary rank of the extended search string , And the focus is not moved. 26. The method of claim 25, Scrolling the first or second scroll input unit and scrolling the first scroll input unit in a direction that moves the focus to the focused file while focusing the file of the boundary ranking of the extended search string Moving the focus to a file adjacent to the focused file, and reducing the expanded search string. 27. The method of claim 26, And selecting and executing the focused file with a selection button after the focusing process.

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