Electrical computers and digital data processing systems: input/ – Intrasystem connection – Bus expansion or extension
Reexamination Certificate
2007-10-26
2010-02-16
Rinehart, Mark (Department: 2111)
Electrical computers and digital data processing systems: input/
Intrasystem connection
Bus expansion or extension
C710S016000, C710S059000, C710S302000, C710S303000, C713S192000
Reexamination Certificate
active
07664902
ABSTRACT:
An extended Secure-Digital (SD) card has a second interface that uses some of the SD-interface lines. A card-detection routine on a host can initially use the SD interface to detect extended capabilities and command the card to switch to using the second interface. The extended SD card can communicate with legacy SD hosts using just the SD interface, or extended SD cards using the second interface. Also an extended Universal-Serial Bus (EUSB) host enters a suspend mode rather than polling an EUSB device that is busy performing a memory or other operations. Power is saved since polling is avoided. The busy EUSB device sends a not-yet signal back to the EUSB host to instruct the host to enter the suspend mode. When the EUSB device is ready to continue transfer with the host, the EUSB device wakes up the host by sending a ready signal back to the host.
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Chow David Q.
Lee Charles C.
Ma Abraham C.
Shen Ming-Shiang
Yu Frank I-Kang
Blakely , Sokoloff, Taylor & Zafman LLP
Rinehart Mark
Spittle Matthew D
Super Talent Electronics Inc.
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