Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Reexamination Certificate
2007-05-14
2008-11-11
Nguyen, Khai M (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
C341S155000, C341S166000
Reexamination Certificate
active
07450049
ABSTRACT:
The digitization apparatus includes, as a main scale, a pulse delay circuit constituted by a plurality of delay units connected in series or in ring form, a latch/encoder, a circulation number counter, and a latch circuit, and includes, as a vernier, a reverse timing extraction circuit detecting a reverse timing at which any one of the delay units has reversed, and an interpolation circuit. The main scale digitizes a time interval between two successive measurement signals in a resolution equal to a delay time per one delay unit. The vernier digitizes a time difference between a measurement timing indicated by the measurement signal and the reverse timing in a resolution equal to 1/M (M being an integer not smaller than 2). The interpolation circuit includes two delay lines each constituted by a plurality of delay units connected in series or in ring form.
REFERENCES:
patent: 5396247 (1995-03-01), Watanabe et al.
patent: 5568071 (1996-10-01), Hoshino et al.
patent: 6466151 (2002-10-01), Nishii et al.
patent: 6509861 (2003-01-01), Watanabe
patent: 6771202 (2004-08-01), Watanabe et al.
patent: 6850178 (2005-02-01), Watanabe
patent: 6879278 (2005-04-01), Watanabe et al.
patent: 6940443 (2005-09-01), Terazawa et al.
patent: H05-259907 (1993-10-01), None
patent: 2004-007385 (2004-01-01), None
patent: 2004-357030 (2004-12-01), None
patent: 2006-115274 (2006-04-01), None
Watanabe Takamoto
Yamauchi Shigenori
Denso Corporation
Harness Dickey & Pierce PLC
Nguyen Khai M
LandOfFree
Digitization apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digitization apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digitization apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4029460