Patent ID: 8878781

Claim:
An input device comprising: an input operation surface provided separately from a display screen, the input operation surface including at least one specified region and being configured to be operated by an indicator; a detection unit configured to detect an operation position of the indicator placed on the input operation surface; a region creating unit configured to create a discrimination region if the operation position is detected within the specified region, the detected operation position being a base point for creating the discrimination region; a discrimination unit configured to discriminate for a condition for performing a predetermined function on the display screen, by determining if a moving direction of the indicator from the base point to a moving point through the discrimination region is substantially in parallel or oblique to a traversing direction traversing the specified region, the traversing direction being substantially in parallel to a selected direction associated with the specified region, a signal generating unit configured to output a performance signal if the discrimination unit discriminates that the condition is satisfied, the performance signal allowing the predetermined function to be performed.