Invention Grant
- Patent Title: Card and host device
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Application No.: US14457720Application Date: 2014-08-12
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Publication No.: US09052843B2Publication Date: 2015-06-09
- Inventor: Akihisa Fujimoto
- Applicant: Kabushiki Kaisha Toshiba
- Applicant Address: JP Minato-ku
- Assignee: KABUSHIKI KAISHA TOSHIBA
- Current Assignee: KABUSHIKI KAISHA TOSHIBA
- Current Assignee Address: JP Minato-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JPPCT/JP04/17627 20041126
- Main IPC: G06F3/06
- IPC: G06F3/06 ; G11C5/14 ; H04L1/00

Abstract:
A host device is configured to read and write information from and into a card and to supply a supply voltage that belongs to a first voltage range or a second voltage range which is lower than the first voltage range, and issues a voltage identification command to the card. The voltage identification command includes a voltage range identification section, an error detection section, and a check pattern section. The voltage range identification section includes information indicating which one of the first voltage range and the second voltage range the supply voltage belongs. The error detection section has a pattern configured to enable the card which has received the voltage identification command to detect errors in the voltage identification command. The check pattern section has a preset pattern.
Public/Granted literature
- US20140351514A1 CARD AND HOST DEVICE Public/Granted day:2014-11-27
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