A cost-effective architecture for HDTV video decoder in ATSC receivers

Author

Kim, Jeong-Min ; Chae, Soo-lk

Author_Institution

Sch. of Electr. Eng., Seoul Nat. Univ., South Korea

Volume

44

Issue

4

fYear

1998

fDate

11/1/1998 12:00:00 AM

Firstpage

1353

Lastpage

1359

Abstract

We describe the architecture of an HDTV video decoder, Vincent5, for MPEG2 MP@HL video decoding and format conversion of all 18 ATSC DTV formats in real-time. Vincent5 adopts a dataflow architecture for its main decoding functions in contrast to the conventional decoders that use a strict pipelined structure. Consequently, this makes it possible for us to explore wide design choices in the architecture decision for each decoding function. In Vincent5 we introduce a new memory control scheme of reducing the memory bandwidth, which is necessary in MPEG2 MP@HL decoding for a cost-effective solution. Without increasing the hardware complexity of Vincent5, we embed three programmable cores into the dedicated hardware to maximize its programmability. Vincent5 was described using the VHDL and its functionality was verified with standard MPEG2 bitstreams. Vincent5 includes 115 K logic gates, 118 Kb RAM, and 32 Kb ROM after logic synthesis and had been fabricated utilizing 3 ML 0.5 μm CMOS technology

Keywords

CMOS digital integrated circuits; bandwidth compression; data flow computing; decoding; digital signal processing chips; high definition television; television receivers; video coding; 0.5 micron; 118 KByte; 118 kbit; 32 Kbyte; ATSC receivers; CMOS technology; DTV formats; HDTV video decoder; MPEG2 MP@HL decoding; MPEG2 bitstreams; RAM; ROM; VHDL; Vincent5; cost-effective architecture; dataflow architecture; format conversion; logic gates; logic synthesis; memory bandwidth reduction; memory control; programmable cores; Bandwidth; CMOS logic circuits; CMOS technology; Decoding; Digital TV; HDTV; Hardware; Logic gates; Read only memory; Read-write memory;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.735837

Filename

735837