Image pickup apparatus, method of controlling the image pickup apparatus, and external device

摘要

An image pickup apparatus which records a digital image signal by taking a picture of an object and which transfers the recorded digital image signal to an external device. The apparatus includes a buffer memory, an image saving memory, an image memory accumulation state judgment unit, and a transfer unit. The buffer memory is adapted to temporarily accumulate the digital image signal obtained by picture taking. The image saving memory is adapted to save the digital image signal. The image memory accumulation state judgment unit is adapted to judge whether or not a new digital image signal can be accumulated in the buffer memory. The transfer unit is adapted to transfer to the external device the digital image signal accumulated in the buffer memory if the image memory accumulation state judgment unit determines that any new digital image signal cannot be accumulated in the buffer memory.