US 5,479,607 A · Video data processing system

Abstract

A video data processing system includes a CPU, a video memory, video data shift registers, a ternary counter, an octal counter, a blanking counter, and a flip-flop. Video data is shifted in the shift registers in response to an output from the ternary counter. The outputs from the ternary counter are counted by the octal counter, and an output from the octal counter is counted by the blanking counter so as to count down a blanking parameter. A borrow output from the blanking sets the flip-flop to hold video data which is then stored in the video memory. This operation is repeated up to the last H along the main scanning direction. The initial value of the blanking parameter is incremented by one by one to repeat main scanning inputs along a subscanning direction.

Claims6

Dependent claims

A video data processing system comprising:

input means for inputting scanned video data;
memory means for storing at least one frame of the video data input by said input means;
memory control means for controlling said memory means so as to divide the input video data into a plurality of columns each having a predetermined amount of the video data in a main-scan direction, and so as to store one of the columns;
blanking data memory means for storing blanking data determining a blank in the main-scan direction;
blanking data updating means for updating the blanking data whenever the one column of the one frame is stored in said memory means;
neglecting means for neglecting one or more columns included in a blank updated by said blanking data updating means;
and
memory updating means for allowing said memory control means to perform storing operations for the remaining columns other than the one or more columns neglected by said neglecting means.

5 more elements

Dependencies are inferred from the claim text.

Video data processing system

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Video data processing system

Life of this patent

Abstract

Claims6