Title :
An area efficient hardware sharing filter generator suitable for multiple video format conversions
Author :
Sugawa, Satoshi ; Shimamoto, Hidemitsu ; Hosotani, Shiro ; Imamura, Yukinaga ; Takagaki, Takashi ; Ijiri, Hirotaka ; Okada, Keisuke ; Sumi, Tadashi
Author_Institution :
LSI Res. & Dev. Lab., Mitsubishi Electr. Corp., Hyogo, Japan
fDate :
8/1/1997 12:00:00 AM
Abstract :
A software program which automatically generates area-efficient circuits for multiple video format conversion filters by using new hardware sharing technique has been developed. The circuits employing this new technique share most of hardware between all filters by utilizing the feature that these filters never operate at the same time. Its performance has been demonstrated by applying the technique to an LSI which converts formats such as NTSC and SDTV for plural types of HDTV monitor. The number of gates for all filters in this chip was decreased from 99,053 to 23,833 by the software program. As a result, all the hardware was successfully integrated into a single chip
Keywords :
CMOS digital integrated circuits; FIR filters; circuit CAD; digital filters; digital signal processing chips; high definition television; large scale integration; telecommunication computing; telecommunication standards; television standards; video signal processing; CMOS IC; FIR filters; HDTV monitor; LSI; NTSC; SDTV; area efficient hardware sharing filter generator; area-efficient circuits; gates; multiple video format conversions; performance; single chip; software program; Circuits; Delay; Finite impulse response filter; HDTV; Hardware; Laboratories; Large scale integration; Monitoring; TV; Video sharing;
Journal_Title :
Consumer Electronics, IEEE Transactions on
