Patent application number | Description | Published |
20090049229 | NONVOLATILE MEMORY DEVICE, METHOD OF WRITING DATA,AND METHOD OF READING OUT DATA - A nonvolatile memory device ( | 02-19-2009 |
20090147960 | CONTENT SEARCH DEVICE - A content search device calculates the number of valid encrypted contents as comparison objects contained in encrypted content databases and the number of valid decryption keys contained in decryption key databases. The database having the smaller number is decided to be a reference database. By successively reading out entries contained in the reference database, a combination of an encrypted content and a corresponding decryption key is searched. | 06-11-2009 |
20090232312 | ENCRYPTED CONTENT REPRODUCTION DEVICE, ENCRYPTED CONTENT REPRODUCTION METHOD, PROGRAM, AND RECORDING MEDIUM FOR STORING THE PROGRAM - The invention presents an encrypted content playback equipment capable of decryption and playback of an encrypted content by using key information when a key medium storing the key information is not inserted, an encrypted content playback method, a program, and a recording medium for storing the program. | 09-17-2009 |
20100058074 | RIGHT INFORMATION ENCRYPTION MODULE, NONVOLATILE MEMORY DEVICE, RIGHT INFORMATION RECORDING SYSTEM, RIGHT INFORMATION DECRYPTION MODULE, RIGHT INFORMATION READING SYSTEM, AND RIGHT INFORMATION RECORDING/READING SYSTEM - A right information encryption module | 03-04-2010 |
20100083006 | MEMORY CONTROLLER, NONVOLATILE MEMORY DEVICE, NONVOLATILE MEMORY SYSTEM, AND ACCESS DEVICE - A memory controller receives an application identifier for identifying an application from an outside, an application, reference data to be referenced by the application, and a signature for the application and writes the application and the reference data. After receiving the application identifier from the outside, the memory controller accesses memory means which manages the application identifier and the application management state and reads out the management state of the target application. According to the management state, necessary data is decided. Since the judgment result is informed to the outside, there is no need of receiving applications more than necessary and it is possible to reduce the load on the signature process and the application reception process. | 04-01-2010 |
20100146633 | Memory Controller,Non-Volatile Storage Device, Non-Volatile Storage System,Access Device, and Data Management Method - In a memory controller according to the present invention, an external I/F unit receives ID information associated with data from the outside of a non-volatile memory, and a recording controller manages a recording position of the data in the non-volatile memory based on the ID information, so that an amount of time necessary for the retrieval of rights information based on the ID information is reduced. | 06-10-2010 |
20100318760 | MEMORY CONTROLLER, NONVOLATILE STORAGE DEVICE, AND NONVOLATILE STORAGE SYSTEM - A method for use in a nonvolatile storage device that can resize one or more partitions prevents an address management table from becoming complicated after repeated resizing of partitions. When a partition is resized, a logical-to-physical conversion table is updated by shifting a physical block address corresponding to a partition subsequent to the resized partition by the resized amount of the partition. The method enables both logical addresses corresponding to partitions and logical addresses not corresponding to partitions to be constantly continuous to one another. | 12-16-2010 |
20110055467 | DATA AREA MANAGING METHOD IN INFORMATION RECORDING MEDIUM AND INFORMATION PROCESSOR EMPLOYING DATA AREA MANAGING METHOD - Area management information is cached in a cache memory by controlling the access size when an information processor accesses the area management information in an information recording medium. When the processing content of the information processor is to retrieve a free area from the area management information, a physical management block size determined from the physical characteristics of the information recording medium is used. When the processing content is to acquire a link destination from the area management information, minimum access unit of the information recording medium is used. Consequently, overhead can be lessened when the area management information is accessed. | 03-03-2011 |