Method and apparatus for adjusting screen size of televisions in incremental steps

A screen size adjustment system comprising:

• a memory for storing horizontal and vertical size data and a step count;
• input means for generating a screen size change input;
• and
• control means for determining if the screen size change input is a screen expansion input or a screen contraction input, incrementing the horizontal and vertical size data by a step value and incrementing the step count if the screen size change input is determined to be a screen expansion input, and decrementing the horizontal and vertical size data by the step value and decrementing the step count if the screen size change input is determined to be a screen contraction input.

A method of screen size adjustment comprising the steps of:

• a) storing horizontal and vertical size data and a step count;
• b) determining if a screen size change input is a screen expansion input or a screen contraction input;
• c) incrementing the horizontal and vertical size data by a step value and incrementing the step count if the screen size change input is determined to be a screen expansion input in said step b);
• and
• d) decrementing the horizontal and vertical size data by the step value and decrementing the step count if the screen size change input is determined to be a screen contraction input in said step b).