NEC Assigned Five Patents

Distributed storage
NEC Corporation, Tokyo, Japan, has been assigned a patent (9,609,060) developed by Kan, Masaki, and Torii, Takashi, Tokyo, Japan, for a “distributed storage system and method.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Provided a plurality of data nodes connected in a network, each including a data storage unit. The data node of data replication destination temporarily stores data to be updated in an intermediate data structure, and converts asynchronously with respect to the update request to a target data structure to store the converted data in the data storage unit. Based on access history information stored in an access history recording unit, trigger information, concerning timing for execution of conversion to the target data structure performed asynchronously by the data node is changed.“

The patent application was filed on July 31, 2012 (14/236,666).

Server, backup system
NEC Corporation, Tokyo, Japan, has been assigned a patent (9,582,387) developed by Egami, Kenichi, and Chiba, Takeshi, Tokyo, Japan, for a “server, backup system and backup method.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A server includes: a first data storage device that stores therein data for use in service provided by the server, a backup data storage device that stores therein backup data for data stored in a second data storage device of another server, a service provision unit that provides the service by using the data stored in the first data storage device and by using the backup data stored in the backup data storage device, an update information creation unit that creates update information representing a content of the updating of the first data storage device, an update information transmission unit that transmits the created update information to the another server, and an update information reception unit that receives update information which is transmitted from the another server, and reflects the content of updating of the second data storage device on the backup data stored in the backup data storage device.“

The patent application was filed on February 4, 2014 (14/172,456).

Storage system in which connected data is divided
NEC Corporation, Tokyo, Japan, has been assigned a patent (9,575,679) developed by Mori, Kenji, Tokyo, Japan, for a “storage system in which connected data is divided.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “For the purpose of suppressing decrease of a deduplication rate in a storage system, a storage system according to the present invention includes: a data buffer, a dividing unit configured to generate divided data by dividing data inputted into the data buffer, and a storage processing unit configured to store the divided data into a storage device while eliminating duplicate storage. The dividing unit is configured to generate the divided data by dividing the data inputted into the data buffer by a preset division standard based on the content of the data and also divide, by the division standard, connected data that residual data being left without being divided by the division standard and continuing data continuing to the residual data and being inputted in the data buffer are connected.“

The patent application was filed on March 6, 2014 (14/198,832).

Cache control device, storage apparatus, and storage medium
NEC Corporation, Tokyo, Japan, has been assigned a patent (9,569,329) developed by Nakashima, Toshitaka, Tokyo, Japan, for a “cache control device, control method therefor, storage apparatus, and storage medium.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Disclosed is a cache control device which makes it possible to, even when a failure is occurred in a cache, reduce a risk that information is lost due to the failure. A cache control device 1 includes a monitor unit 2 that monitors an occurrence of a failure of a plurality of storage devices which constitute a cache, and a control unit 3 that determines superiority or inferiority of the storage devices on the basis of life-span information and failure information which are related to the storage devices, and that changes a configuration of the cache in accordance with a result of the determination.“

The patent application was filed on March 17, 2015 (14/660,186).

Storing and reading data in or from key value storage
NEC Corporation, Tokyo, Japan, has been assigned a patent (9,454,312) developed by Dobre, Dan, Heidelberg, Germany, for a “method and system for storing and reading data in or from a key value storage.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A method and system for storing data in a key value storage having a plurality of n servers, wherein t<n servers may fail arbitrarily and wherein 3t+1=n is satisfied, the method includes: (a) generating commitment information for a secret information, (b) disseminating a first message including the data to be stored, a corresponding key for the data and the generated commitment information to the n servers, (c) storing the information included in the first message on at least a number of servers, (d) providing first storing confirmation information by at least n-t servers, (e) disseminating a second message including corresponding key and the secret information to the n servers, (f) storing the information included in the second message, and (g) providing second storing confirmation information by at least n-t servers.“

The patent application was filed on July 06, 2012 (14/131,514).