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120 frames per second CMOS Image Sensor for Super Hi-Vision (SHV) Camera

Advances are being made by the Science & Technology Research Laboratories on the Super Hi-Vision (SHV) system. SHV is an advanced broadcasting service with enhanced picture and sound quality that conveys a stronger sensation of presence than is possible with today’s HDTV.

A recent joint development with the Research Institute of Electronics, Shizuoka University, involved the construction of a CMOS image sensor for an SHV camera with a frame rate of 120 fps, which will allow a fast-moving subject to be clearly captured on video. The previous SHV system could handle ultrahigh-definition video images with approximately 33 million pixels (7680 horizontal × 4320 vertical pixels) by using progressive scanning at approximately 60 frames per second. The recent enhancement doubled the frame rate; the new image sensor is for an SHV camera operating at up to 120 fps (progressive scanning).

The large number of pixels of the SHV 120 fps CMOS image sensor for SHV system image sensor had previously made it difficult to achieve high-speed operation. However, our newly developed devices such as a circuit that converts the analog signal outputs from each pixel into digital signals (AD converter circuit) and a circuit to output the digital signal from the sensor (signal output circuit) have made it possible to increase the sensor’s speed of operation. This image sensor can shoot a fast-moving subject in clear, smooth, moving ultrahigh-definition images. STRL will continue to conduct R&D on SHV.

http://www.nhk.or.jp/strl/english/index.html

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