An electronic still camera wherein an image compression circuit can be simplified includes a lens system, a shutter, an image sensor and a processing circuit. A video signal for one frame outputted from the processing circuit in response to a shutter operation is written into a memory. A video signal...http://www.google.com/patents/US5414464?utm_source=gb-gplus-sharePatent US5414464 - Image sensor and electronic still camera with an addressable image pickup section and an analog product sum calculation section
