Image pattern expanding device

Abstract

Abstract PURPOSE:To efficiently expand an image pattern by obtaining the magnitude of an image pattern in the moving direction based on an output from a first image sensor, and controlling the scanning frequency of a second image sensor corresponding the obtained magnitude. CONSTITUTION:In terms of an original 1 on which a numerical character such as '2' is drawn in magnitude of such as a hight Y0 and width X0, when moving to the X-axis direction shown by an arror 2 at a velocity of (v), the linear image sensors 3, 4 scan in the Y-axis direction to read the character '2'. These sensors 3, 4 are scanned with clocks CK1, CK2 which respectively have frequencies fc1, fc2 obtained from a control part 5 that includes a microcomputer. This fc1 can be given by an equation fc1=1/tau, provided that the tau is the time necessary for the sensor 3 to scan all the elements. Assuming the magnitude of a picture element determined by the sensors 3, 4 to be XX Y, the picture elements of '2' nXm is shown as an equation I. To standardize this '2' to n0Xm0-pieces of magnitude, the frequency fc2 is given by an equation II, that is, each character to be standardized is modified corresponding to the X0 in the equation.

Inventors

• 👤 Ee Pepaazu Nooman
• 👤 Aaru Yangu Jieemuzu
• 👤 Ee Piasu Jierarudo

Bibliographic Details