Abstract: A capsule buoy type wave energy converter according to an embodiment of the present invention includes a buoy installed on the water surface, and a power generating unit received in the buoy in a sealed manner so as to generate power. The power generating unit may include a generator for generating power, at least one wave actuator for converting bidirectional movement caused by wave power into unidirectional movement, a torque generator for generating torque by the unidirectional movement transmitted from the wave actuator, and an accelerator for accelerating the torque from the torque generator so as to operate the generator.

Abstract: A car information indicating apparatus for elevator cars displays elevator movement information by using signal relaying devices that do not include separate CPUs. Each signal relaying device is capable of receiving/processing data representative of car information from the car controller and of transmitting to a plurality of car position indicators on each floor landing, resulting in an elevator system that has a more simple construction and reduces cost.