Sughrue Mion, PLLC
Method and apparatus for measuring distance using low clock rate signal
Provided is an apparatus and a method of measuring a distance between devices using a low clock frequency signal. The apparatus includes clock frequency generators, counters, a controller and a calculator for determining the distance based on clock signal overlap. Radio waves are transmitted and a number of clocks of a clock signal having a clock frequency b are counted, and if the transmitted radio waves are received again, a number of clocks of a clock signal having a clock frequency a are counted. If the clock signals having the clock frequencies a and b overlap with each other, counting of the numbers of the clocks of the clock signals having the frequencies b and a stops, and the distance is measured using the count values of the clock signals having the clock frequencies a and b. As a result, number of clocks of clock signals having low clock frequencies with a uniform difference can be counted to precisely measure a distance.
Samsung Electronics Co., Ltd. Institute of Radio Engineering and Electronics of RAS
G
G01S
inventional
Young-hwan Seong-soo Dmitriev S. Jae-hyon Andreyev V.
Kim Lee Alexander Kim Yuri