Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Patent
1995-06-02
1997-10-07
Gaffin, Jeffrey A.
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
341159, H03M 134, H03M 136
Patent
active
056753411
ABSTRACT:
An analog-to-digital converter includes first current sources, second current sources, current regulators, and conductive channels, with each conductive channel coupled to a respective first current source, second current source, and current regulator. An analog input is split into the first current sources. Each second current source is associated with a unique reference current. At each channel where the first current source couples a larger current than the reference current, the current regulator couples a difference current to allow the second current source to couple the reference current. Alternatively, at each channel where the first current source couples a smaller current than the reference current, the current regulator does not couple a difference current, and the second current source couples the same current as the first current source.
REFERENCES:
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patent: 4942399 (1990-07-01), Buchholtz et al.
patent: 4951053 (1990-08-01), DesJardin et al.
patent: 4978959 (1990-12-01), Chong et al.
patent: 5283582 (1994-02-01), Krenik
patent: 5369406 (1994-11-01), Hughes et al.
Vallancourt David Gerard
Viswanathan Thayamkulangara Ramaswamy
Gaffin Jeffrey A.
Huynh Thuy-Trang N.
Lucent Technologies - Inc.
Sigmond David M.
Veschi John P.
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