Patent ID: 11899327
Assignee: JVCKENWOOD CORPORATION
Field: Optics (Instruments)
Classification: CPC G  H | IPC G

Claim 2:
3. The optical node device according to claim 1, wherein
the first switching circuit and the first signal holding circuit constitute a first static random access memory,
the second switching circuit and the second signal holding circuit constitute a second static random access memory,
each of the first switching circuit and the second switching circuit is composed of one transistor,
the first signal holding circuit is composed of a first inverter and a second inverter, an output terminal of one of the first inverter and the second inverter being connected to an input terminal of the other of the first inverter and the second inverter,
the second signal holding circuit includes a third inverter and a fourth inverter, an output terminal of one of the third inverter and the fourth inverter being connected to an input terminal of the other of the third inverter and the fourth inverter,
a driving force of a transistor which constitutes the first inverter at an input end as viewed from the first switching circuit is larger than a driving force of the transistor which constitutes the second inverter at an output end as viewed from the first switching circuit, and
a driving force of a transistor which constitutes the third inverter at an input end as viewed from the second switching circuit is larger than a driving force of the transistor which constitutes the fourth inverter at an output end as viewed from the second switching circuit.