A single-chip CMOS 306/spl times/244-pixel NTSC video camera and a descendant coprocessor device

We report a single-chip CMOS NTSC video camera, incorporating a 306/spl times/244 image sensor array, sensor readout logic, A/D and D/A converters, and a custom 300-MIPS processor for color reconstruction and NTSC encoding. Operation is from a single 5-V supply and a 14.32-MHz crystal clock. Implementation is in 0.8-/spl mu/ single-poly-double-metal (SPDM) CMOS, integrating some 580 000 devices on a 68-mm/sup 2/ die. A related dual-standard PAL/NTSC coprocessor is also described, extending the architectural basis of the single-chip device whilst incorporating more complex signal-processing function. In this case, implementation is in 0.6-/spl mu/m SPDM CMOS, integrating some 285000 devices on a 27-mm/sup 2/ die.

[1]  D Marr,et al.  Theory of edge detection , 1979, Proceedings of the Royal Society of London. Series B. Biological Sciences.

[2]  Donald James Baxter,et al.  800-thousand-pixel color CMOS sensor for consumer still cameras , 1997, Electronic Imaging.

[3]  Bedabrata Pain,et al.  Progress in CMOS active pixel image sensors , 1994, Electronic Imaging.

[4]  Michael J. Flynn.  On Division by Functional Iteration , 1970, IEEE Transactions on Computers.

[5]  E. Fossum,et al.  CMOS active pixel image sensors for highly integrated imaging systems , 1997, IEEE J. Solid State Circuits.

[6]  J. E. D. Hurwitz,et al.  An 800k-Pixel color CMOS sensor for consumer Still cameras , 1997 .

[7]  Y. Lida,et al.  A 1/4 inch 330 K square pixel progressive scan CMOS active pixel image sensor , 1997, 1997 IEEE International Solids-State Circuits Conference. Digest of Technical Papers.

[8]  Hon-Sum Philip Wong,et al.  Technology and device scaling considerations for CMOS imagers , 1996 .

[9]  P.L.P. Dillon,et al.  Color imaging system using a single CCD area array , 1978 .