Abstract: Disclosed is an ultrasonic flow meter configured to measure the flow rate of a fluid using ultrasonic waves, wherein branch flow paths are formed in a flow path in order to regularly reduce the sectional area of the flow path over at least a predetermined distance between reflectors such that the flow speed of the fluid in the flow path between the reflectors is increased without pressure loss, whereby it is possible to improve measurement accuracy.

Abstract: An ultrasonic flow meter, according to an embodiment of the present disclosure, comprises a measurement tube, an ultrasonic sensor module, and a pair of reflectors, wherein the measurement tube is configured to allow fluid to flow therethrough and comprises a pair of sensor holes spaced apart from each other in a longitudinal direction on an outer surface thereof, the ultrasonic sensor module comprises a pair of ultrasonic transducers mounted in the sensor holes, the ultrasonic transducers being configured to send and receive ultrasonic waves, and the pair of reflectors are located in the measurement tube, and wherein the measurement tube further comprises a flow path sectional area reduction member comprising a plurality of plates arranged such that a plurality of branch flow paths are formed in the longitudinal direction around a central flow path in between the pair of reflectors.

Abstract: A method of operating a data processing system includes compressing a first part of uncompressed data, and determining whether to compress a second part of the uncompressed data based on an expected data size of the compressed first part and an actual data size of the compressed first part. The method further includes transmitting one of first transmission data and second transmission data to an external memory device based on a result of the determining. The first transmission data includes the compressed first and second parts, and the second transmission data includes the first and second parts of the uncompressed data.

Abstract: A method of operating a data processing system includes compressing a first part of uncompressed data, and determining whether to compress a second part of the uncompressed data based on an expected data size of the compressed first part and an actual data size of the compressed first part. The method further includes transmitting one of first transmission data and second transmission data to an external memory device based on a result of the determining. The first transmission data includes the compressed first and second parts, and the second transmission data includes the first and second parts of the uncompressed data.