Patent ID: 11895420
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. A method of operating a ramp generator, the method comprising:
receiving a ramp enable signal, a first enable signal, and a second enable signal from a control circuit during a ramp period;
generating the ramp signal based on the ramp enable signal, the first enable signal, and the second enable signal; and
outputting the ramp signal to a correlated double sampling (CDS) circuit,
wherein the generating of the ramp signal includes,
generating the ramp signal based on the ramp enable signal during the ramp period;
increasing a voltage level of the ramp signal based on the first enable signal, during an emphasis period in the ramp period; and
further increasing the voltage level of the ramp signal based on the second enable signal, during a pre-emphasis period in the ramp period, and

wherein a length of the pre-emphasis period is shorter than a length of the emphasis period.