ELECTRONIC SIGNAL PROCESSING APPARATUS AND INSTRUMENTS; MICROPROCESSORS AND INTEGRATED CIRCUITS FOR THE RECEPTION AND/OR PROCESSING AND/OR TRANSMISSION OF SOUND AND/OR VISION AND/OR OTHER SIGNALS; ELECTRONIC CIRCUITS, INCLUDING MICROPROCESSORS AND INTEGRATED CIRCUITS, PROVIDING AN INTERFACE BETWEEN SOUND AND/OR VISION AND/OR OTHER SIGNAL SOURCES, AND OTHER ELECTRONIC CIRCUITS; CAMERAS AND TELEVISION CAMERAS FOR THE GENERATION OF VISION SIGNALS; COMPONENT PARTS AND ACCESSORIES FOR THE FOREGOIN...