An analog-to-digital converter with Golomb-Rice output codes

An analog-to-digital converter with data compression capabilities is described. By sharing circuits between an integrating converter and a Golomb-Rice encoder it is possible to jointly perform the tasks of quantization and coding. The Golomb-Rice codes are generated during the conversion cycle by em...

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Bibliographic Details
Published in:IEEE transactions on circuits and systems. 2, Analog and digital signal processing Analog and digital signal processing, 2006-04, Vol.53 (4), p.278-282
Main Authors: Leon-Salas, W.D., Balkir, S., Sayood, K., Hoffman, M.W.
Format: Article
Language:English
Subjects:
Analog to digital conversion
Analog-digital conversion
Analog-to-digital (A/D) conversion
Binary trees
Circuits
CMOS technology
Coders
Compression algorithms
Converters
Data compression
Design engineering
Encoders
Hardware
Multiplexing
Quantization
Shift registers
Silicon
source coding
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Description
Summary:An analog-to-digital converter with data compression capabilities is described. By sharing circuits between an integrating converter and a Golomb-Rice encoder it is possible to jointly perform the tasks of quantization and coding. The Golomb-Rice codes are generated during the conversion cycle by employing a shift register and a digital multiplexer. The final codeword is read out serially from the shift register. The converter can also work in a noncompressing mode. This design provides a compact circuit suitable for on-sensor compression. Simulations at the system and transistor level corroborate the validity of the design.
ISSN:1549-7747
1057-7130
1558-3791
DOI:10.1109/TCSII.2005.859931