Patent ID: 8934057
Filing Date: 2015-01-13
Classification: H04N

Abstract:
1. A display apparatus comprising: a first input terminal capable of inputting a first video signal type and a second video signal type that is different from the first video signal type; a second input terminal capable of inputting the first video signal type and the second video signal type; a first determiner configured to determine whether a video signal is input into each of the first input terminal and the second input terminal and to determine a synchronizing signal type input to each of the first input terminal and the second input terminal; a frequency measuring unit configured to measure a frequency of a synchronizing signal of the video signal input to the first input terminal and the second input terminal; a switch configured to connect one of the first input terminal and the second input terminal to the frequency measuring unit; a second determiner configured to determine a video signal type input into the input terminal which is connected by the switch to the frequency measuring unit on the basis of a determination result of the synchronizing signal type in the first determiner and a measurement result of the frequency in the frequency measuring unit and to determine a video signal type input into the input terminal which is not connected by the switch to the frequency measuring unit on the basis of the determination result of the synchronizing signal type in the first determiner; an input selector configured to select one of video signal types capable of being input into the first input terminal and the second input terminal; and a switch controller configured to control the switch on the basis of a determination result for the video signal in the first determiner and a video signal type selected by the input selector, wherein the switch controller controls the switch so as to connect the input terminal into which the video signal is input with the frequency measuring unit when the first determiner determines that the video signal is input into only one of the first input terminal and the second input terminal, and to connect the input terminal into which the video signal type selected by the input selector is input with the frequency measuring unit when the first determiner determines that the video signal is input into both of the first input terminal and the second input terminal.