Method of magnifying a portion of display

• US 20050285880A1
• Filed: 06/23/2004
• Published: 12/29/2005
• Est. Priority Date: 06/23/2004
• Status: Abandoned Application

• Current Assignee: Inventec Appliances Corporation (Inventec Corporation)
• Original Assignee: Inventec Appliances Corporation (Inventec Corporation)
• Inventors: Wu, Cong, Lai, Cheng-Shing
• Application Number:
  US10/873,187
• Publication Number:
  US 20050285880A1
• Time in Patent Office: Days
• US Class Current: 345/660
• CPC Class Codes: G06F 2203/04806 Zoom, i.e. interaction techniques or interactors for controlling the zooming operation
• CPC Class Codes: G06F 3/0481 based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
• CPC Class Codes: G09G 2340/045 Zooming at least part of an image, i.e. enlarging it or shrinking it
• CPC Class Codes: G09G 2340/145 related to small screens
• CPC Class Codes: G09G 5/00 Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T

Abstract

The present invention discloses a method of magnifying a portion of a display of a portable communication device, which is implemented in the portable communication device including a magnification software being executed to perform the steps of taking a selected location of the display of the portable communication device as a magnifying point; selecting the portion of the display based on the magnifying point and the magnifying area; and obtaining a magnified portion by multiplying the selected portion of the display by the magnification. By utilizing the present invention, letters and icon within the magnified portion will be larger than letters and icons in other portions of the display.

Claims

1. A method of magnifying a portion of a display of a portable communication device, the method being implemented in the portable communication device including a magnification software having at least one magnifying shape mode each having a magnifying area and a magnification so that when the portable communication device runs the magnification software, the magnification software performs the steps of:

taking a selected location of the display of the portable communication device as a magnifying point;

selecting the portion of the display based on the magnifying point and the magnifying area; and

obtaining a magnified portion by multiplying the selected portion of the display by the magnification.

2. The method of claim 1, wherein the magnification software further comprises a magnifying icon which, when the portable communication device runs the magnification software, the magnifying icon is shown on the display so that clicking the magnifying icon will enable the portable communication device to perform a subsequent processing based on the magnifying shape mode.

3. The method of claim 2, wherein in response to activating the magnifying shape mode, the magnifying shape mode continuously selects the portion of the display by following a trace of the magnifying point and magnifying the selected portion of the display the magnification.

4. The method of claim 3, wherein the magnifying shape mode will stop any subsequent actions if no magnifying point is read by the magnifying shape mode in a predetermined period of time.

5. The method of claim 4, wherein responsive to running the magnification software, the portable communication device performs the steps of:

showing the magnifying icon on the display;

firstly determining whether a clicking signal is generated on the display;

if the first determination is positive recording a location of the clicking signal;

secondly determined whether the clicked location is within a range of the magnifying icon;

if the second determination is positive performing the selected magnifying shape mode;

thirdly determined whether a next clicking signal is read; and

if the third determination is positive continuously performing the selected magnifying shape mode.

6. The method of claim 5, wherein responsive to reading a next clicking signal no more, the optical pen is determined to have left the display with no more new magnifying point being generated and the selected magnifying shape mode being disabled.

7. The method of claim 5, wherein responsive to activating the selected magnifying shape mode to perform magnification, the PDA performs the steps of:

recording a location of the read magnifying point;

firstly determining whether the recorded magnifying point is the same as a previously recorded magnifying point;

if the first determination is positive secondly determining whether the recorded magnifying point has not changed for a predetermined period of time; and

if the second determination is positive determining that the optical pen has left the display with no more new magnifying point being generated and the selected magnifying shape mode being disabled.

8. The method of claim 7, wherein responsive to determining that the recorded magnifying point is different from the previously recorded magnifying point, further comprises the steps of:

selecting the portion of the display based on the magnifying point and the magnifying area; and

obtaining a magnified portion by multiplying the selected portion of the display by the magnification.

9. The method of claim 1, wherein the magnification software further comprises a parameter set table for specifying a magnifying shape mode including a magnifying area and a magnification.