US 12,287,701 B2
Data recorder and method for using data recorder
Yoshihisa Kon, Tokyo (JP); Toru Sasaki, Tokyo (JP); Minoru Yoshida, Tokyo (JP); and Kazuki Oya, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Appl. No. 18/014,754
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Aug. 6, 2020, PCT No. PCT/JP2020/030134
§ 371(c)(1), (2) Date Jan. 6, 2023,
PCT Pub. No. WO2022/029952, PCT Pub. Date Feb. 10, 2022.
Prior Publication US 2023/0289257 A1, Sep. 14, 2023
Int. Cl. G06F 11/07 (2006.01)
CPC G06F 11/0793 (2013.01) [G06F 11/073 (2013.01)] 39 Claims
OG exemplary drawing
 
1. A data recorder comprising:
an input interface;
a storage unit; and
a control circuit,
wherein the storage unit comprises a non-volatile memory configured to store data and a power supply for the non-volatile memory, a state of the power supply for the non-volatile memory being controlled to be an on state or an off state by the control circuit,
the input interface comprises a first buffer memory,
the input interface accepts input of data from outside and records the data in the first buffer memory,
the control circuit switches the state of the power supply for the non-volatile memory to the on state at a timing determined on a basis of an amount of data recorded in the first buffer memory and a mode of the input of the data from the outside via the input interface,
the input interface transfers the data recorded in the first buffer memory to the non-volatile memory in a case where the power supply for the non-volatile memory is in the on state, and
the control circuit switches the state of the power supply for the non-volatile memory to the off state after transferring the data recorded in the first buffer memory to the non-volatile memory.