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

Volume

53

Issue

4

fYear

2006

fDate

4/1/2006 12:00:00 AM

Firstpage

278

Lastpage

282

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;

fLanguage

English

Journal_Title

Circuits and Systems II: Express Briefs, IEEE Transactions on

Publisher

ieee

ISSN

1549-7747

Type

jour

DOI

10.1109/TCSII.2005.859931

Filename

1618896