Patent ID: 6992792

Claim:
A method of increasing resolution of an image-forming device, the method comprising: applying a sixteen-bit signal representing at least a portion of a source image to a multiplexer having sixteen data inputs, so that each bit of the sixteen bit signal corresponds to an input to the multiplexer; at each of a rising and falling edge of a clock pulse, selecting a data input by: incrementing a counter for each clock cycle; at each clock cycle, concatenating a binary value of the counter with a value of an inverted clock signal in bitwise fashion to form a data selector code; inputting the data selector code to the multiplexer; and selecting a data input corresponding to the data selector code, wherein each input is serially and sequentially selected; inputting a data bit corresponding to the selected data input to the multiplexer; and transmitting the data bit to a light-emitting element, so that 2 bits are output to the light-emitting element for each clock cycle; wherein the output specifies any of a width of or an interval between light pulses emitted by said light-emitting element.