Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.1346/CHE/2011 A
(19) INDIA
(22) Date of filing of Application :19/04/2011 (43) Publication Date : 21/06/2013
(54) Title of the invention : SECURE DIGITAL HOST CONTROLLER VIRTUALIZATION
(51) International classification :G06F
(31) Priority Document No :NA
(32) Priority Date :NA
(33) Name of priority country :NA
(86) International Application No
:NA
Filing Date
:NA
(87) International Publication No : NA
(61) Patent of Addition to Application Number :NA
Filing Date
:NA
(62) Divisional to Application Number
:NA
Filing Date
:NA
(71)Name of Applicant :
1)INEDA SYSTEMS PVT. LTD
Address of Applicant :8-2-120/115/C, SUDHA ENCLAVE,
ROAD NO.2, BANJARA HILLS, HYDERABAD - 500 034
Andhra Pradesh India
(72)Name of Inventor :
1)KANIGICHERLA, BALAJI
2)VOLETI, SIVA RAGHURAM
3)PASUMARTHY, DHANUMJAI
(57) Abstract :
Described herein are methods and system for virtualization of the secure digital (SD) host controller to enable sharing a SD device
among various multiple host processors in a multi-processor computing system. In one implementation the method of sharing a
SD device amongst a plurality of hosts of a multi-host computing system comprises detecting the SD device on occurrence of a
reset event, receiving an enumeration request, from at least a first host and a second host of the plurality of hosts, to enumerate the
SD device with respect to the second host, enumerating the SD device with respect to the second host, and initiating data
exchange between the SD device and each of the plurality of hosts.
No. of Pages : 27 No. of Claims : 16
The Patent Office Journal 21/06/2013 13762