Title :
An analog-to-digital converter with Golomb-Rice output codes
Author :
Leon-Salas, Walter D. ; Balkir, Sina ; Sayood, Khalid ; Hoffman, Michael W.
Author_Institution :
Dept. of Electr. Eng., Univ. of Nebraska-Lincoln, Lincoln, NE, USA
fDate :
4/1/2006 12:00:00 AM
Abstract :
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.
Keywords :
analogue-digital conversion; data compression; encoding; Golomb-Rice codes; analog-to-digital converter; coding; conversion cycle; data compression; digital multiplexer; noncompressing mode; on-sensor compression; quantization; shift register; Analog-digital conversion; Binary trees; CMOS technology; Circuits; Compression algorithms; Data compression; Hardware; Quantization; Shift registers; Silicon; Analog-to-digital (A/D) conversion; data compression; source coding;
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
DOI :
10.1109/TCSII.2005.859931
