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US 2009/0174442 A1Published application
Ramp generator and image sensor including the same
OwnerSoo Youn Kim, Kyung Min Shin +1inventors
InventorsSoo Youn Kim, Kyung Min Shin, Yong Lim
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Abstract
A ramp signal generator is provided. The ramp signal generator may include a ramp signal generation unit configured to generate a ramp signal based on an externally-supplied driving voltage and a ramp signal correction unit configured to feed back and compare the ramp signal with a reference signal and correct a driving voltage by generating a corrected voltage from a comparison value. The ramp signal generation unit may generate a corrected ramp signal where the slope changes based on a corrected driving voltage.
Claims20
A ramp signal generator comprising:
- a ramp signal generation unit configured to generate a ramp signal based on an externally-supplied driving voltage;
- and
- a ramp signal correction unit configured to feed back the ramp signal, compare the ramp signal with a reference signal, and correct the driving voltage by generating a corrected voltage from a comparison value,
- wherein the ramp signal generation unit generates a slope-changed corrected ramp signal based on the corrected driving voltage.
1 more element
Dependencies are inferred from the claim text.