Sandisk Assigned Two Patents

Dual Mode Access for Storage Devices

Sandisk Technologies, Inc., Plano, TX, has been assigned a patent (8,209,516) developed by Alan W. Sinclair, Falkirk, UK, for a “method and system for dual mode access for storage devices.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A method and system for reading data from a non-volatile mass storage device is provided. The method includes, performing logical configuration for the non-volatile mass storage device, wherein file data is allocated addresses in a virtual logical address space; and data identified by virtual logical addresses is read by a host system. The system includes a file storage segment that reads and writes data on a file-by-file basis, allowing a host system to access data from the non-volatile mass storage device using a file interface format; and a logical interface segment that allows the host system to access data using logical addressing, wherein the host system is unaware of a storage format under which data is stored on a file-by-file basis.“

The patent application was filed on Feb. 26, 2010 (12/714,237).

Non-Volatile Storage With Temperature Compensation
Based on Neighbor State Information

SanDisk Technologies, Inc., Plano, TX, has been assigned a patent (8,213,255) developed by Gerrit Jan Hemink, Yokohama and Shinji Sato, Chigasaki, Japan, for a “non-volatile storage with temperature compensation based on neighbor state information.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Data is programmed into and read from a set of target memory cells. When reading the data, temperature compensation is provided. The temperature compensation is based on temperature information and the state of one or more neighbor memory cells. In one embodiment, when data is read from set of target memory cells, the system senses the current temperature and determines the differences in temperature between the current temperature and the temperature at the time the data was programmed. If the difference in temperature is greater than a threshold, then the process of reading the data includes providing temperature compensation based on temperature information and neighbor state information. In one alternative, the decision to provide the temperature compensation can be triggered by conditions other than a temperature differential.”

The patent application was filed on Feb. 19, 2010 (12/708,699).