Coded data generation or conversion – Converter compensation
Reexamination Certificate
2007-02-06
2007-02-06
Jeanglaude, Jean Bruner (Department: 2819)
Coded data generation or conversion
Converter compensation
C341S144000
Reexamination Certificate
active
11307687
ABSTRACT:
Method and related apparatus for digital/analog converter are disclosed. The invention is based on M switch elements with each capable of selectively providing a positive or a negative electricity. While generating an analog signal output corresponding to a digital input of value D, the invention calculates two values Pa and Na according to these two equations: Pa−Na=D; Pa+Na=M, (M−1) or (M+1), and then Pa switch elements are made to respectively provide positive electricity with Na switch elements respectively providing negative electricity, such that the analog signal output is synthesized. Because the invention can perform error shaping for imbalance positive
egative electricity within each switch element, and for mismatch between the switch elements, the invention works well for over-sampling A/D converter system.
REFERENCES:
patent: 4306222 (1981-12-01), Peek et al.
patent: 5608401 (1997-03-01), Viswanathan et al.
patent: 6218974 (2001-04-01), Dedic
patent: 6278390 (2001-08-01), Meyer et al.
patent: 6344810 (2002-02-01), Velazquez
patent: 6693571 (2004-02-01), Melanson et al.
patent: 6762704 (2004-07-01), Melanson et al.
patent: 6809669 (2004-10-01), Robinson
Hsu Winston
Jeanglaude Jean Bruner
VIA Technologies Inc.
LandOfFree
Method and related apparatus for digital-analog conversion does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and related apparatus for digital-analog conversion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and related apparatus for digital-analog conversion will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3843564