摘要:
An information storage apparatus transmits or receives information to or from another information processing apparatus in one of a plurality of data transfer modes. The information storage apparatus includes first storage means for storing the information; information transmission/reception control means for controlling transmission or reception of the information between the first storage means and second storage means contained in the other information processing apparatus; command analysis means for analyzing a command supplied from the other information processing apparatus to determine which of the plurality of data transfer modes should be applied; and configuration means for configuring the information transmission/reception control means based on a result of determination of the data transfer mode by the command analysis means.
摘要:
Disclosed herein is a memory apparatus comprising: a nonvolatile memory configured to allow data to be written thereto and read therefrom in units of a cluster and to permit data to be deleted therefrom in units of a block made up of a plurality of sectors; a control circuit configured to control access operations to said nonvolatile memory; a management area; a user data area; and a cache area; said management area includes a logical/physical table, and the addresses of physical blocks in said cache area.
摘要:
Memory control apparatus, memory control method, and program are provided. The present invention provides a preparatory process for determining whether or not a data-updating process to update data of a flash memory or a data-writing process to write new data into the memory has been completed normally. A data-updating process to update data stored in a specific block is carried out as a process including alternate-block processing to replace the specific block with another block referred to as an alternate block. In the current data-updating process, the alternate block is examined to determine whether or not data has been erased from the alternate block. If data has been erased from the alternate block, the preceding data-updating or data-writing process is determined to be normal. By virtue of a property exhibited by the contents of the reserved-block address, the reserved-block address needs to be saved in the flash memory only once during a data-updating or data-writing process.
摘要:
An image pickup apparatus includes a lens barrel, a lens holding frame made movable in an optical axis direction inside the lens barrel, a movable lens held in the lens holding frame, a yoke inserted into the lens barrel and attached to the lens barrel, a magnet attached to the yoke, and a driving coil that is attached to the lens holding frame and located to be opposed to the magnet and gives propulsion to the lens holding frame. A pair of first fitting sections is provided in the lens barrel. A pair of second fitting sections is provided in the lens barrel. An interval between the first fitting sections is set larger than an interval between the second fitting sections. A distance from the optical axis to the respective first fitting sections is set larger than a distance from the optical axis to the respective second fitting sections.
摘要:
A data storage device detachably connected to a host device, the data storage device including: a memory having a logical space composed of at least one logical unit; a logical space managing table for managing the logical space; and a controlling section configured to control a managing operation of the logical space managing table, and when the host device makes a request to divide the logical space, searching the logical space for unused logical blocks, dividing a logical space composed of the unused logical blocks from the logical space, and performing control to manage a plurality of the obtained logical spaces as different logical units, respectively.
摘要:
A memory device and controlling method for nonvolatile memory are provided. The memory device and the controlling method for a nonvolatile memory are provided by which, where a file management system wherein there is a tendency that lower logic addresses are used frequently like the MS-DOS is adopted, physical blocks of a flash memory are used in an averaged fashion and the life of the flash memory can be elongated thereby.
摘要:
A nonvolatile-memory controlling method is disclosed which continuously accesses a plurality of memory banks structured so as to have each memory bank accessible independently. The method comprises the steps of: in a busy cycle of one of the plurality of memory banks being accessed, issuing access information to a second memory bank for access thereto; bringing the second memory bank into a selected state while the access information is being issued to the second memory bank using a selection signal for controlling a selected state and an unselected state for any one of the plurality of memory banks; bringing the memory bank in the busy cycle into an unselected state while the access information is being issued; and accessing the plurality of memory banks continuously based on the access information issued to the second memory bank in the busy cycle of one of the memory banks being accessed and in keeping with the selection signal for controlling the second memory bank.
摘要:
A storage device, a data processing system and a data writing and readout method in which the area management information can be distributed and stored without affecting the transmission efficiency and in which compatibility with pre-existing storage devices can be maintained despite changes in the cell structure. A flash memory 21, a conversion unit 25 and a controller 26 are provided. The converting unit 25 converts the input area management information into an area management flag corresponding to the area management information and appended redundant data. The controller 6 causes the area management flag to be stored in the flash memory 21. The converting unit 25 converts the area management flag read out from the flash memory 21 to the original area management information. The controller 26 outputs this area management information.
摘要:
A communication system for performing communications via a relay between a host apparatus and a plurality of terminals whose communication speed is lower than that of the host apparatus. In this system, data from a partial terminal is transmitted at a low speed in real time to the host apparatus during a partial period, while data from the other terminals is stored in the relay during the same period, and thereafter the data stored in the relay during the preceding period is transmitted at a high speed to the host apparatus, thereby shortening the restriction time of the host apparatus in regard to the communication. And in the low-speed real-time transmission of data from a partial terminal to the host apparatus, transfer clock signals supplied from the host apparatus to the relay can be used directly by the partial terminal and for storing, in the relay, the data transferred thereto from the other terminals, whereby any independent timing generator circuit need not be incorporated in the relay, and thus the relay can be structurally simplified with another advantage of reduced production cost.
摘要:
A fuel cell composite plant characterized by comprising a fuel cell, a device for feeding a fuel gas to an anode of the fuel cell, a gas separator for feeding a high-purity oxygen gas containing argon to a cathode of the fuel cell, a combustor for burning unreacted gases from the anode and the cathode, and a cooling device for condensating and removing water from a burned gas in order to obtain an argon gas.