A digital signal processing system capable of compensating for frequency response variations and generating a response characteristic that complies with a provided specification. The carrier device includes: a first retaining portion, second retaining portion, third retaining portion and fourth retaining portion that hold and carry a plurality of works arranged at even intervals and supply these to a supply pallet at any intervals; and a retaining base portion to which these first to fourth retaining portions are connected. Because the antibodies or antibody fragments act only at the sites of thrombus formation and do not interfere with the normal activity of circulating platelets, they are particularly well suited for use as antithrombotic agents in a wide variety of applications. Signalling is generated to the wireless devices to instruct them to implement any change in state.