Fast Inter Prediction Coding Technique for Real Time Compression of H.264/AVC

A refrigerator comprising in which a trap is provided between the outlet of a liquid receptacle and the outlet of a cooler via a normally-closed valve, a flow passage for connecting the lower portion of said trap to the outlet of a condenser is provided, and a flow passage switching mechanism for shifting, when starting a defrosting operation, the inlet of said cooler from the admission port of a compressor to the discharge port thereof, and the inlet of said condenser from the discharge port of said compressor to the admission port thereof, and for switching said normally-closed valve to open state is provided. Said refrigerator further comprising a radiator connected at its inlet to the discharge port of said compressor, a water tank or a liquid tank in which said radiator is immersed, a heat receiver immersed in said water tank or liquid tank, and an ejector connected at its inlet to the discharge port of said compressor, at its outlet to the inlet of said cooler and at its suction port to the outlet of said heat receiver.