Patent ID: 9729813
Date: 2017-08-08
CPC Classifications: G09G,H04N

Claim:
1. A signal determination apparatus for determining a format of an input image signal input from an image data output apparatus, comprising: a storage unit to store numerical values of at least three parameters for defining a format of each of a plurality of image signals; and a determination unit to determine a format of the input image signal based on numerical values of at least three parameters of the input image signal and the numerical values of at least three parameters stored in the storage unit, wherein the determination unit includes an estimation part and a determination part, wherein when numerical values of at least two parameters of the at least three parameters of the input image signal match numerical values of corresponding at least two parameters common to at least two image signals of the plurality of image signals stored in the storage unit, the estimation part estimates a format of the input image signal is a format of one image signal of the at least two image signals, wherein when a numerical value of at least one parameter, other than the at least two parameters, of the at least three parameters of the input image signal matches a numerical value of corresponding at least one parameter, other than the at least two parameters, for defining a format of the one image signal stored in the storage unit, the determination part determines that a format of the input image signal is a format of the one image signal.