SESSION FA11

SALON 10-15

IMAGING CIRCUITS AND SYSTEMS

Chair: E. Fossum, Photobit, La Crescenta, CA
Associate Chair: Y. Fujita, NHK, Tokyo, Japan

11.1 - A 1/4 Inch 330k Square Pixel Progressive Scan CMOS Active Pixel Image Sensor - 8:30 AM

E. Oba, K. Mabuchi, Y. Iida, N. Nakamura, H. Miura Toshiba Corp., Kawasaki, Japan

A -inch progressive scan CMOS image sensor with 640(H)x480(V) pixels is fabricated in a 0.6um CMOS process. Several pixel structures are described. The sensor with 5.6x5.6um2 pixel operates with 5.0V single 5V supply and <30mW power consumption.

11.2 - Current-Mediated, Current-Reset 768(H)x512(V) Active Pixel Sensor Array 9:00 AM D. McGrath, V. Clark, P. Duane,

L. McIlrath1, W. Washkurak Polaroid Corporation, Cambridge, MA 1Northeastern University, Boston, MA

A 400,000 pixel current-mode CMOS image sensor with electronic pan, zoom, and shutter operates with 3.5V or 5V supplies. The pixel includes only three FETs, one bias bus, and two signal inputs. A current-reset mode and difference mode compensate for component mismatch. Dynamic range >1000:1 is demonstrated at 2Frames/s continuous operation.

11.3 - A Compressed Digital Output CMOS Image Sensor with Analog 2D DCT Processors and an ADC/Quantizer - 9:30 AM

S. Kawahito, M. Yoshida, M. Sasaki, K. Umehara, Y. Tadokoro, K. Murata1, S. Doushou1, A. Matsuzawa1 Toyohashi University of Technology, Toyohashi, Japan 1Matsushita Electric Industrial Co., Ltd., Moriguchi, Japan

A 128x128 pixel image sensor is integrated with an analog 2-D discrete cosine transform (DCT) processor and a variable quantization-level ADC using 0.35um CMOS. Two analog 2-D DCT cores can perform real-time (30Frame/s) encoding of CIF-format (288x352) image with 10.8mW at 3V in a complementary fashion.

BREAK 10:00 AM

11.4 - A 4M Pixel CMD Image Sensor with Block and Skip Access Capability - 10:15 AM

T. Nomoto, S. Hosokai, T. Isokawa, R. Hyuga, S. Nakajima, T. Terada Olympus Optical Co., Ltd., Nagano, Japan

A 4M pixel charge-modulation device image sensor has three readout modes: full, arbitrary block, and skip access. Block and skip modes provide partial and whole image in real time, respectively. The sensor uses 100mW at 12MHz horizontal clock frequency.

11.5 - A 30Frame/s 2/3 Inch 1.3M Pixel Progressive Scan IT-CCD Image Sensor - 10:45 AM

M. Furumiya, S. Suwazono, M. Morimoto, Y. Nakashiba, Y. Kawakami, T. Nakano, T. Satoh, S. Katoh, D. Syohji, H. Utsumi, Y. Taniji, N. Mutoh, K. Orihara, N. Teranishi, Y. Hokari NEC Corp., Kanagawa, Japan

A 2/3-inch 1.3M pixel progressive scan CCD for still/video cameras with 49MHz horizontal CCD operation and a 140MHz bandwidth amplifier achieves 30Frame/s. 8-phase drive for vertical CCDs also enables 1049 line wide dynamic range interlaced scan. A narrow channel barrier overflow drain is attached for draining needless charge.

11.6 - A 0.2b/pixel 16mW Real-Time Analog Image Encoder in 0.8um CMOS - 11:15 AM

K. Iizuka, M. Miyamoto, H. Matsui, K. Hashiguchi Sharp Corporation, Tenri, Nara, Japan

A real-time analog image encoder chip receives analog image data signals from a B/W image sensor and compresses them to an average 0.2b/pixel using a subband scheme based on vector quantization. The chip, in 0.8um CMOS, encodes 288(H)x192(V) pixel images at 60Frames/s. The chip consumes 16mW at 3V.

11.7 - TFT-LCD Panel Driver IC Using Dynamic Function Shuffling Technique - 11:45 AM

T. Shima, T. Itakura, H. Minamizaki1,T. Yagi1, T. Maruyama1 Toshiba R&D Center, Toshiba Corp., Kawasaki, Japan 1Toshiba Semiconductor Sys. Eng. Ctr, Toshiba Corp., Kawasaki, Japan

A 1Vp-p video signal is sampled and amplified to a 3Vp-p liquid crystal control signal to reduce power consumption (19.8mW, 3.3 V) and to weaken electromagnetic radiation from the input lines of the driver ICs. The 342 outputs have a standard deviation of 2.5mV accomplished by a suppression of 1/sqrt(9), in the sample-and-hold stage and the gain stage by shuffling over 9 function units.

CONCLUSION 12:45 PM

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