Coded data generation or conversion – Analog to or from digital conversion – Digital to analog conversion
Patent
1997-04-03
1999-06-22
Hoff, Marc S.
Coded data generation or conversion
Analog to or from digital conversion
Digital to analog conversion
341118, H03M 168
Patent
active
059146826
ABSTRACT:
A segmentwise-operating D/A converter has the first and second D/A conversion circuits. Input digital data containing a plurality of bits is divided into two segments. The digital data of one segment is processed by the first D/A conversion circuit to be converted into analog signal. The digital data of another segment is processed by the second D/A conversion circuit to be converted into analog signal. Outputs from the first and second D/A conversion circuits are added together. The full-scale value of the D/A conversion circuit of one segment is set to be more than the full-scale value of the D/A conversion circuit of an adjacent segment divided by the N-th power of two (N represents the number of bits contained in one segment).
REFERENCES:
patent: 4868571 (1989-09-01), Inamasu
patent: 4998108 (1991-03-01), Ginthner et al.
patent: 5270716 (1993-12-01), Gleim
patent: 5323159 (1994-06-01), Imamura et al.
Hoff Marc S.
Rohm & Co., Ltd.
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