Patent ID: 8269892
Filing Date: 2012-09-18
Classification: G09G,H04N

Abstract:
1. A receiving device, comprising: a plurality of digital input terminals; a signal receiving unit for receiving a video signal; and a switch unit for selectively connecting the plurality of digital input terminals to the signal receiving unit, wherein the signal receiving unit is a receiving device that performs a mutual authentication with an external apparatus connected via a transmission channel to a digital input terminal selected by the switch unit, and thereafter, receives a video signal from the external apparatus, and the signal receiving unit comprises: a priority determining unit for cyclically determining a priority of the plurality of digital input terminals, based on a combination of at least connection information of the external apparatus in the plurality of digital input terminals and selection information of a video signal for a user image display, wherein the cyclically determining the priority includes, in each cycle that the priority is determined, for each of the digital input terminals, adding a first point value to a priority point of the digital input terminal when the connection information indicates connection of the external apparatus to the digital input terminal and adding a second point value to the priority point of the digital input terminal when the selection information indicates selection of the digital input terminal, the first point value being different from the second point value; and a controller for controlling the switch unit so that a digital input terminal, which is determined by the priority determining unit as having, for a cycle, a highest priority based on a priority point having a highest point value among the priority points, respectively, of the digital input terminals, is connected to the signal receiving unit.