Ad conversion method, apparatus thereof, solid-state imaging...

Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion

Reexamination Certificate

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Details

C341S155000

Reexamination Certificate

active

07554476

ABSTRACT:
An analog-to-digital conversion method includes the steps of outputting an upper-bit conversion reference signal, obtaining a digital value of upper bits on the basis of a period of time from a set time to the time when a magnitude relation between the analog signal and the upper-bit conversion reference signal is determined to be changed, generating and outputting a lower-bit conversion reference signal, obtaining a digital value of lower bits on the basis of a period of time from a set time to the time when a magnitude relation between the analog signal and the lower-bit conversion reference signal is determined to be changed, and determining a digital value of digital data converted from the analog signal on the basis of the digital value of the upper bits and the digital value of the lower bits.

REFERENCES:
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patent: 5936566 (1999-08-01), Park
patent: 5973632 (1999-10-01), Tai
patent: 6549155 (2003-04-01), Heminger et al.
patent: 7064694 (2006-06-01), Male et al.
patent: 7324033 (2008-01-01), Asayama et al.
patent: 11-168383 (1999-06-01), None
patent: 2002-232291 (2002-08-01), None
patent: 2003-198372 (2003-07-01), None
patent: 2003-259151 (2003-09-01), None
patent: 2005-347932 (2005-12-01), None
patent: 2005-348325 (2005-12-01), None
patent: 2006-278135 (2006-10-01), None
Japanese Office Action Issued on Dec. 17, 2008.

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