US 11,809,340 B2
Memory card for data transfer system, data storage device, system host, and memory card identification method
Hideaki Yamashita, Kyoto (JP); and Takeshi Ootsuka, Hyogo (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on Jul. 16, 2021, as Appl. No. 17/378,068.
Application 17/378,068 is a continuation of application No. PCT/JP2019/038565, filed on Sep. 30, 2019.
Claims priority of application No. 2019-031502 (JP), filed on Feb. 25, 2019.
Prior Publication US 2021/0342278 A1, Nov. 4, 2021
Int. Cl. G06F 13/16 (2006.01); G06F 3/06 (2006.01)
CPC G06F 13/1668 (2013.01) [G06F 3/0604 (2013.01); G06F 3/0659 (2013.01); G06F 3/0679 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A memory card comprising:
two external interfaces including a first interface unit and a second interface unit that are connected to a system host;
a memory unit; and
an additional information registration unit,
wherein the first interface unit controls an external device using an interface of a physical signal common to a local bus of the system host,
the second interface unit is an interface different from the local bus,
the memory unit includes
a first identifier storage unit that stores an identifier of the memory unit,
a flash memory that stores user data, and
a memory controller that controls the first identifier storage unit and the flash memory via the first interface unit,
the additional information registration unit includes
a second identifier storage unit that stores an identifier same as the identifier of the memory unit, and
an additional information notification unit that stores additional information and notifies the system host of the identifier in the second identifier storage unit and the additional information via the second interface unit, and
when the memory card is connected to the system host, the memory unit and the additional information registration unit are associated with each other by the identifier stored in the first identifier storage unit and the identifier stored in the second identifier storage unit.