Patent ID: 11949412
Assignee: RENESAS ELECTRONICS CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A semiconductor device comprising:
a galvanic isolator;
a transmitting circuit that transmits a transmission signal via the galvanic isolator;
a receiving circuit that receives a received signal corresponding to the transmission signal via the galvanic isolator;
an encoding circuit that encodes two input signals and generates the transmission signal; and
a decoding circuit that decodes the two input signals from the received signals,
wherein the two input signals have a plurality of states according to combinations of values of the two input signals,
wherein the encoding circuit generates the transmission signal based on state transitions of the plurality of states,
wherein the decoding circuit decodes the two input signals based on state transitions of the plurality of states indicated by the received signal,
wherein the plurality of states includes a first state, a second state and a third state,
wherein the encoding circuit generates an increment signal and a decrement signal as the transmission signal based on the state transition from one of the first state to the third state to another state,
wherein the increment signal indicates either a state transition from the first state to the second state or a state transition from the second state to the third state, and
wherein the decrement signal indicates either a state transition from the third state to the second state or a state transition from the second state to the first state.