APPARATUS AND METHOD FOR PERFORMING SCROLL FUNCTION IN PORTABLE TERMINAL

• US 20100164895A1
• Filed: 12/30/2009
• Published: 07/01/2010
• Est. Priority Date: 12/31/2008
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jo, Sun-Haeng, Lee, Hye-Soo, Kang, Seong-Hoon, KIM, Ji-Young
• Granted Patent: US 8,860,670 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/0485 Scrolling or panning
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

An apparatus is provided for performing a scroll function in a portable terminal, in which a touch screen displays a list divided into a plurality of sections, a memory stores a scroll function established for each of the plurality of sections, and a controller locates a focus on a particular item by performing a scroll function established for a particular section, when the section among the plurality of sections is touched and dragged.

Claims

1. An apparatus for performing a scroll function in a portable terminal, comprising:

a touch screen for displaying a list divided into a plurality of sections;

a memory for storing a scroll function established for each of the plurality of sections; and

a controller for locating a focus on a particular item by performing a scroll function established for a particular section, when the section among the plurality of sections is touched and dragged.

2. The apparatus of claim 1, wherein the plurality of sections displayed on the list are divided according to a width of a touch region on the touch screen or a number of items constituting the list.

3. The apparatus of claim 1, wherein the scroll function established for each of the plurality of sections is performed in units of a preset number of items constituting the list.

4. The apparatus of claim 3, wherein the number of items is preset for each of the plurality of sections in association with a scrolling amount and speed in a related section.

5. The apparatus of claim 1, wherein if the focus is located on the particular item, the controller indicates a current location of the item on which the focus is located.

6. The apparatus of claim 5, wherein the current location of the item on which the focus is located is indicated in the list by at least one of a bar, a color and a number.

7. A method for performing a scroll function in a portable terminal, comprising:

displaying a list divided into a plurality of sections;

extracting a section where a touch and drag has occurred from among the plurality of sections, if the touch and drag has occurred in the list; and

locating a focus on a particular item by performing a scroll function established for the extracted section.

8. The method of claim 7, further comprising indicating a current location of the item where the focus is located among all items in the list, if the focus is located on the item.

9. The method of claim 8, wherein the current location of the item where the focus is located is indicated in the list by at least one of a bar, a color, and a number.

10. The method of claim 7, wherein the plurality of sections displayed on the list are divided according to a width of a touch region on the touch screen or a number of items constituting the list.

11. The method of claim 7, wherein the scroll function established for each of the plurality of sections is performed in units of a preset number of items constituting the list.

12. The method of claim 11, wherein the number of items is preset for each of the plurality of sections in association with a scrolling amount and speed in a related section.