US 12,407,334 B2
Signal transmission device, electronic device, vehicle
Toru Higuchi, Kyoto (JP)
Assigned to Rohm Co., Ltd., Kyoto (JP)
Appl. No. 18/018,409
Filed by ROHM CO., LTD., Kyoto (JP)
PCT Filed Aug. 23, 2021, PCT No. PCT/JP2021/030759
§ 371(c)(1), (2) Date Jan. 27, 2023,
PCT Pub. No. WO2022/050102, PCT Pub. Date Mar. 10, 2022.
Claims priority of application No. 2020-148119 (JP), filed on Sep. 3, 2020.
Prior Publication US 2023/0283266 A1, Sep. 7, 2023
Int. Cl. H03K 3/0233 (2006.01)
CPC H03K 3/02335 (2013.01) 14 Claims
OG exemplary drawing
 
1. A signal transmission device comprising:
a transmitter provided in a primary circuit system and configured to generate a first transmission signal and a second transmission signal according to an input signal;
at least one first isolating element configured to constitute a first signal transmission path for transmission of the first transmission signal and the second transmission signal from the primary circuit system to a secondary circuit system;
at least one second isolating element configured to constitute a second signal transmission path, different from the first signal transmission path, for transmission of the first transmission signal and the second transmission signal from the primary circuit system to the secondary circuit system; and
a receiver provided in the secondary circuit system and configured to feed first and second reception signals, that are output from the at least one first isolating element, and to feed third and fourth reception signals, that are output from the at least one second isolating element, to a logic circuit to generate a single output signal,
wherein the at least one first isolating element includes a first isolator and a second isolator,
the at least one second isolating element includes a third isolator and a fourth isolator,
the first isolator and the third isolator are configured to receive the first transmission signal, and
the second isolator and fourth isolator are configured to receive the second transmission signal.