Patent ID: 7603505
Filing Date: 2009-10-13
Classification: G09B

Abstract:
1. An interactive electronic device operable with any of a plurality of removable electronic cartridges, the device comprising: a master integrated circuit; an analog audio output device; and a bus having a plurality of removable cartridge connectors, each removable cartridge connector configured to removably receive any of the plurality of removable electronic cartridges, the bus configured to electrically simultaneously couple the master integrated circuit with any combination of the plurality of removable electronic cartridges arranged in any order in any of the plurality of removable cartridge connectors, the bus comprising a single-conductor digital data link and a single-conductor analog data link, the digital data link configured to electrically simultaneously couple the master integrated circuit with all of the removable cartridge connectors, the analog data link configured to simultaneously couple all of the removable cartridge connectors with the analog audio output device, wherein the master integrated circuit is configured to transmit along the digital data link simultaneously to each of the removable cartridge connectors one identification code of a plurality of identification codes, the identification codes being different from any memory address in any of the removable cartridges.