US 11,852,665 B2
Pulsed high frequency monitor
Hiroyuki Kojima, Yokohama (JP); and Ryota Suzuki, Yokohama (JP)
Assigned to KYOSAN ELECTRIC MFG. CO., LTD., Yokohama (JP)
Appl. No. 17/629,154
Filed by KYOSAN ELECTRIC MFG. CO., LTD., Yokohama (JP)
PCT Filed Aug. 5, 2020, PCT No. PCT/JP2020/030066
§ 371(c)(1), (2) Date Jan. 21, 2022,
PCT Pub. No. WO2021/025076, PCT Pub. Date Feb. 11, 2021.
Claims priority of application No. 2019-144918 (JP), filed on Aug. 6, 2019.
Prior Publication US 2022/0276289 A1, Sep. 1, 2022
Int. Cl. G01R 23/02 (2006.01); G01R 21/00 (2006.01)
CPC G01R 23/02 (2013.01) [G01R 21/00 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A pulsed high frequency monitor, comprising:
a DC conversion circuit that converts a pulsed high frequency into a DC to output a power level;
a power level change detection circuit that detects a level change in the power level; and
a transition pattern determination circuit that determines a transition pattern of the power level in a time series on a basis of the level change detected by the power level change detection circuit,
wherein the transition pattern is a time-series pattern in a transition direction of the power level or a time-series pattern of a transition level of the power level.