Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Reexamination Certificate
2009-05-04
2011-11-08
Nguyen, Linh (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
C341S118000, C341S120000, C341S164000, C341S165000, C341S170000
Reexamination Certificate
active
08054209
ABSTRACT:
An A/D converter suitable for use in a system in which the signal power of noise increases with the signal power of the signal, such as an imaging system, utilizes a variable quantization system for converting analog signals into digital signals. The variable quantization is controlled so that at low signal levels the quantization is similar or identical to conventional A/D converters, while the quantization level is increased at higher signal levels. Thus, higher resolution is provided at low signal levels while lower resolution is produced at high signal levels.
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Lerner David Littenberg Krumholz & Mentlik LLP
Nguyen Linh
Round Rock Research, LLC
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