Analog-to-digital converter, optical disk reproduction...

Details Analog-to-digital converter, optical disk reproduction... Analog-to-digital converter, optical disk reproduction...

2011-03-01

2011-03-01

Nguyen, Khai M (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S155000

Reexamination Certificate

active

07898451

ABSTRACT:
A plurality of comparators (CMP1, CMP2, . . . ) respectively correspond to a plurality of reference voltages (V1, V2, . . . ), and each compares a reference voltage corresponding to the comparator with a signal level of an analog signal (Sin). An encoder (102) generates a digital signal (De) corresponding to the analog signal (Sin) based on outputs (S1, S2, . . . ) of the plurality of comparators. A pattern detection circuit (103) detects that a temporal change of an output (S3) of a first comparator matches a predetermined first particular pattern. A control circuit (104) corrects a digital value of the digital signal (De) in response to detection by the pattern detection circuit. The temporal change of the output (S3) of the first comparator becomes the first particular pattern when an amplitude of the analog signal (Sin) is smaller than a predetermined amplitude.

REFERENCES:
patent: 4216465 (1980-08-01), Huelsman et al.
patent: 4251802 (1981-02-01), Horna
patent: 4774498 (1988-09-01), Traa
patent: 4897657 (1990-01-01), Brubaker
patent: 5519398 (1996-05-01), Satoh et al.
patent: 5668549 (1997-09-01), Opris et al.
patent: 6034631 (2000-03-01), Gross, Jr.
patent: 6101376 (2000-08-01), Bell
patent: 6222476 (2001-04-01), Lee et al.
patent: 6535152 (2003-03-01), Lee
patent: 63-202131 (1988-08-01), None
patent: 63-234730 (1988-09-01), None
patent: 6-125275 (1994-05-01), None
patent: 09-139672 (1997-05-01), None
patent: 2002-008315 (2002-01-01), None
patent: 2006-252630 (2006-09-01), None
Front page of Published International Application and International Search Report issued in International Application No. PCT/JP2009/000540 filed Feb. 10, 2009.

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