Method and device for browsing information on a display

Abstract

In one embodiment, a method for browsing information on a hand-held device having a display is provided. The method includes (1) setting the orientation of the display surface in relation to the virtual surface, said orientation being in a spatial initial state, so that a reference line perpendicular to and extending from a first reference point on the display surface hits the page containing information at a predefined point, (2) generating a mirror line by mirroring the reference line in relation to a line that is perpendicular to the display surface and travels via the reference point in response to tilting of the hand-held device in relation to the spatial initial state, (3) defining a hit point (xn,yn) where the mirror line hits the virtual surface and the page containing said information; and (4) showing on the display a portion of the page around the hit point

1 . A method for browsing information on a hand-held device having a display, the method comprising:
 setting the orientation of the display surface in relation to the virtual surface, said orientation being in a spatial initial state, so that a reference line perpendicular to and extending from a first reference point on the display surface hits the page containing information at a predefined point,   generating a mirror line by mirroring the reference line in relation to a line that is perpendicular to the display surface and travels via the reference point, in response to tilting of the hand-held device in relation to the spatial initial state,   defining a hit point (xn,yn) where the mirror line hits the virtual surface and the page containing said information; and   showing on the display at least a portion of the page around the hit point and having a shape similar to the shape of the display, the position of the hit point on the page is to correspond to the position of the reference point on the display.   
   
   
       2 . The method according to  claim 1 , wherein the spatial initial state is set at a certain predefined angle in relation to the earth surface. 
   
   
       3 . The method according to  claim 2 , wherein the predefined angle is between 20-30 degrees. 
   
   
       4 . The method according to  claim 1 , further comprising:
 filtering out unintentional movements from a coordinate axial and/or tilting movement before showing the portion of the page on the display.   
   
   
       5 . The method according to  claim 1 , further comprising:
 keeping the orientation of the information displayed unchanged when rotating the hand-held device around an axis, said axis being essentially perpendicular to the display surface.   
   
   
       6 . The method according to  claim 1 , wherein the portion of the page displayed is locked/unlocked in response to the pressing/releasing of a push button. 
   
   
       7 . The method according to  claim 1 , further comprising:
 setting the hand-held device to a zoom mode; and   zooming in or out the displayed information when rotating the hand-held device around an axis, said axis being essentially perpendicular to the display surface.   
   
   
       8 . The method according to  claim 1 , further comprising:
 setting the hand-held device into a zoom mode; and zooming in or out the displayed information based on the tilting of the hand-held device.   
   
   
       9 . The method according to  claim 1 , further comprising:
 determining with a camera a distance between the display surface and a second reference point related to a user; and   zooming in or out the displayed information based on the distance.   
   
   
       10 . The method according to  claim 1 , further comprising:
 measuring with a video camera the orientation and location of the hand-held device in relation to a user of the hand-held device;   seeking a certain point related to the user on the video image to be set as a second reference point; and   changing the size of the information according to the movements of the reference point in relation to the hand-held device.   
   
   
       11 . The method according to  claim 10 , wherein said step of seeking includes using at least one of a heuristic algorithm and neural network to seek and define the location of the point to be used as the second reference point. 
   
   
       12 . A hand-held device for browsing information, the handheld device comprising and being adapted to:
 show on the display a portion of the page residing around the predefined point and having a shape similar to the shape of the display,   generate a mirror line by mirroring the reference line in relation to a line that is perpendicular to the display surface and travels via the reference point in response to tilting of the hand-held device in relation to the spatial initial state,   define a hit point (xn,yn) where the mirror line hits the virtual surface and the page containing information, and   show on the display at least a portion of the page around the hit point, said portion to have a shape similar to the shape of the display, the position of the hit point on the page to correspond to the position of the reference point on the display.   
   
   
       13 . The hand-held device according to  claim 12 , wherein the hand-held device is further adapted to set the initial state at a certain predefined angle in relation to the earth surface. 
   
   
       14 . The hand-held device according to  claim 12 , wherein the predefined angle is between 20-30 degrees. 
   
   
       15 . The hand-held device according to  claim 12 , wherein the hand-held device is further adapted to:
 browse the information on the display at the speed which depends on the location and orientation of the display surface with reference to the virtual surface.   
   
   
       16 . The hand-held device according to  claim 12 , wherein the hand-held device is further adapted to:
 filter out unintentional movements from a coordinate axial and/or tilting movements before showing the portion of the page on the display.   
   
   
       17 . The hand-held device according to  claim 12 , wherein the hand-held device is further adapted to:
 keep the orientation of the information displayed unchanged when rotating the hand-held device around an axis being essentially perpendicular to the display surface.   
   
   
       18 . The hand-held device according to  claim 12 , wherein the hand-held device is further adapted to:
 lock/unlock the portion of the page displayed in response to the pressing of a button.   
   
   
       19 . The hand-held device according to  claim 12 , wherein the hand-held device is further adapted to:
 set the hand-held device into a zoom mode and zoom in or out the displayed information when rotating the hand-held device around the axis, an axis being essentially perpendicular to the display surface.   
   
   
       20 . The hand-held device according to  claim 12 , wherein the hand-held device is further adapted to:
 set the hand-held device to a zoom mode; and zoom in or out the displayed information based on the tilting of the hand-held device.   
   
   
       21 . The hand-held device according to  claim 12 , wherein the hand-held device is further adapted to:
 determine with a camera a distance between the display surface and a second reference point related to a user; and   zoom in or out the displayed information based on the distance.   
   
   
       22 . The hand-held device according to  claim 12 , wherein the hand-held device is further adapted to:
 measure the orientation and location of the hand-held device in relation to a user of the hand-held device with a video camera,   seek a certain point related to the user on a video image to be set as a second reference point; and   change the size of the information according to the movements of the second reference point in relation to the hand-held device.   
   
   
       23 . The hand-held device according to  claim 22 , wherein the hand-held device is further adapted to:
 use heuristic algorithms and/or a neural network to seek and define the location of the point to be used as the second reference point.   
   
   
       24 . A computer program embodied on a computer-readable medium, wherein the computer program executes the program recorded in a computer-readable medium to perform a method for browsing information on a display of a hand-held device, the computer program:
 displaying a portion of the page residing around the predefined point and having a shape similar to the shape of the display,   generating a mirror line by mirroring the reference line in relation to a line that is perpendicular to the display surface and travels via the reference point in response to tilting of the hand-held device in relation to the spatial initial state,   defining a hit point (xn,yn) where the mirror line hits the virtual surface and the page containing information; and   showing on the display at least a portion of the page around the hit point and having a shape similar to the shape of the display, the position of the hit point on the page to correspond to the position of the reference point on the display.   
   
   
       25 . A computer program according to  claim 24 , wherein the computer program sets the initial state in a certain predefined angle in relation to the earth surface.