Patent ID: 8976082
Filing Date: 2015-03-10
Classification: G01C,H04L,H04W

Abstract:
1. A method for synchronizing drawn marks on electronic maps, adapted for synchronizing a drawn mark between an electronic map displayed on a touch screen of a first handheld mobile electronic device and an electronic map displayed on a touch screen of a second handheld mobile electronic device, and the steps of the synchronizing method comprising: pre-configuring the electronic map with a plurality of positioning points; receiving an input signal by the touch screen of the first electronic device and drawing the mark on the displayed electronic map accordingly, wherein the input signal is generated in response to the user drawing the mark on the electronic map displayed on the touch screen, and wherein the mark is asymmetrically shaped and comprises a marking line, a marking sign, an icon, or text drawn by the user on the touch screen; converting the mark into one or more lines of serial positioning points corresponding to the drawn mark on the electronic map; transmitting the positioning points to the second electronic device via a wireless transmission network, wherein the positioning points transmitted to the second electronic device is used for drawing the corresponding drawn mark on the electronic map displayed on the second electronic device so as to reconstruct the mark sent from the first electronic device; and adjusting the size of the electronic map displayed on the second electronic map to display the mark of all of the transmitted position points, and wherein the transmitted positioning points comprise a geometric center of the mark, used as the center of the displayed electronic map on the second electronic device.