Electronic circuit

An electronic circuit comprising:

• a spike generation circuit that outputs an isolated spike signal of which width is 2 nanoseconds or greater and 60 nanoseconds or less to an output terminal and reset an internal state, which depends on a history of an input current input to an input terminal, to an initial value when the internal state reaches a threshold value;
• a wireless communication circuit that receives the isolated spike signal output from the spike generation circuit and outputs electromagnetic waves to an antenna;
• and
• a memory circuit that has a first input terminal and a first output terminal, and maintains a level of the first output terminal at one of a high level and a low level when the one of the high level and the low level is input to the first input terminal, the first output terminal being coupled to the input terminal of the spike generation circuit.

An electronic circuit comprising:

• a spike generation circuit comprising:
• a first CMOS inverter connected between a first power supply and a second power supply, an output node of the first CMOS inverter being coupled to a first node that is an intermediate node coupled to an input terminal to which an input signal is input;
• a capacitance element having a first end coupled to the first node and a second end coupled to a reference potential terminal, an electric charge by the input signal being accumulated in the capacitance element;
• and
• a delay circuit that includes an even number of second CMOS inverters connected in an even number of stages between the first node and an output terminal, an input node of each of the even number of second CMOS inverters being coupled to the first node, an output node of each of the even number of second CMOS inverters being coupled to the output terminal, the delay circuit outputting an isolated spike signal to the output terminal by outputting a signal to reset a charge accumulated in the capacitance element to an input node of the first CMOS inverter to cause a voltage of the first node to fall when the voltage of the first node becomes a predetermined value;
• and
• a wireless communication circuit that receives the isolated spike signal and outputs electromagnetic waves to an antenna.

An electronic circuit comprising:

• a spike generation circuit that outputs an isolated spike signal with a high level or a low level to an output terminal and reset an internal state, which depends on a history of an input current input to an input terminal, to an initial value when the internal state reaches a threshold,
• a wireless communication circuit that receives the isolated spike signal output from the spike generation circuit and outputs electromagnetic waves to an antenna;
• and
• a memory circuit that has a first input terminal and a first output terminal, and maintains a level of the first output terminal at one of the high level and the low level when the one of the high level and the low level is input to the first input terminal, the first output terminal being coupled to the input terminal of the spike generation circuit.