Invention Grant
US07804438B2 Image sensors and dual ramp analog-to-digital converters and methods
有权
图像传感器和双斜道模数转换器和方法
- Patent Title: Image sensors and dual ramp analog-to-digital converters and methods
- Patent Title (中): 图像传感器和双斜道模数转换器和方法
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Application No.: US12434602Application Date: 2009-05-01
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Publication No.: US07804438B2Publication Date: 2010-09-28
- Inventor: Alexander Krymski
- Applicant: Alexander Krymski
- Agency: Foley & Lardner LLP
- Main IPC: H03M1/82
- IPC: H03M1/82

Abstract:
Dual ramp analog-to-digital converters and methods allow for performing analog-to-digital conversion of an analog signal. Various dual ramp analog-to-digital converters and methods allow for applying the analog signal and a coarse ramp to a same input of a comparator, and applying a fine ramp to another input of the comparator. Some dual ramp analog-to-digital converters and methods allow for applying the analog signal, a coarse ramp, and a fine ramp to a same input of a comparator. Various dual ramp analog-to-digital converters and methods allow for applying the analog signal to an input of a first comparator, applying a coarse ramp to the input of the first comparator through a coarse ramp switch, applying the analog signal to an input of a second comparator, and applying a fine ramp to another input of the second comparator.
Public/Granted literature
- US20090273500A1 IMAGE SENSORS AND DUAL RAMP ANALOG-TO-DIGITAL CONVERTERS AND METHODS Public/Granted day:2009-11-05
Information query
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