Image signal generating apparatus, image inspection apparatus, printing system, and image signal generating method

An image signal generating apparatus comprising:

• a parameter generator including;
• a first processing element that sequentially inputs a plurality of image signals L in synchronization with each timing signal A generated in time series;
• a second processing element that sequentially inputs each sampling signal B generated in time series;
• a third processing element that dynamically generates a parameter PM in response to the generation of said each sampling signal B, said parameter PM expressing a temporal relationship between the generation of said each timing signal A and the generation of said each sampling signal B;
• and
• an image signal generator including;
• a fourth processing element that identifies a series of image signals in said plurality of image signals L, the series of image signals corresponding to a time period until the generation of said sampling signal Bn+1 since the generation of said sampling signal Bn, n being an index indicating a series of integers,
• a fifth processing element that reconstructs said series of image signals based on parameter values PMn, and PMn+1 to generate an output image signal Qn corresponding to said sampling signal Bn, said parameter values PMn and PMn+1 being values provided to said parameter PM according to sampling signals Bn and Bn+1 temporally adjacent to each other, and
• a sixth processing element that repeatedly activates said fourth and fifth processing elements while updating said number n,
• wherein said parameter value PMn includes a division ratio parameter DP, said division ratio parameter DP reflecting a ratio at which a first time period Ta is divided into a second time period Tb and a third time period Tc,
• said first time period Ta is a time interval until the generation of a timing signal Ak+1 since the generation of a timing signal Ak, and said sampling signal Bn is generated in said first time period Ta, k being an integer defined by an integer n,
• said second time period Tb is a time interval until the generation of said sampling signal Bn since the generation of said timing signal Ak,
• said third time period Tc is a time interval in which said second time period Tb is excluded from said first time period Ta, and
• said fifth processing element includes;
• a processing element that generates a first weighted signal Wa and a second weighted signal Wb based on said division ratio parameter DP, said first weighted signal Wa being obtained by weighting a value of an image signal Lk according to a first ratio Rf=Tb/Ta, said second weighted signal Wb being obtained by weighting said image signal Lk according to a second ratio Rs=Tc/Ta, and
• a processing element that generates said output image signal Qn using said first weighted signal Wan+1 generated according to said sampling signal Bn+1 and said second weighted signal Wbn already generated according to said sampling signal Bn.