Patent ID: 7515193
Filing Date: 2009-04-07
Classification: H04N

Abstract:
1. A portable communication terminal comprising: a receiving unit receiving a video signal via a communication line; a plurality of image-taking units taking an image of a subject and producing a video signal displaying a picture of said subject; an instructing unit giving an instruction switching the displayed picture based on input of an instruction from a user; a producing unit producing, according to said instruction, a signal displaying a picture based on at least one of the signal among said video signals produced by said plurality of image-taking units, respectively, and the video signal received by said receiving unit; and a display unit displaying the picture based on the signal sent from said producing unit, wherein the instructing unit includes an input unit receiving a switch instruction given by the user for switching the display of the picture, first and second hold-down units to be held down by the user for entering said switch instruction, a measuring unit measuring an input time of input of said switch instruction, and a switch instructing unit giving said instruction based on said input time; and wherein said measuring unit measures a first holddown time of a held-down state of said first holddown unit and a second holddown time of a held-down state of said second holddown unit, and said switch instructing unit includes first and second display instructing units, the first display instructing unit giving said switching instruction based on said first holddown time, said second display instructing unit giving, based on said second holddown time, an instruction that causes display of the plurality of pictures based on said respective video signals.