Canon Kabushiki Kaisha

Hiroyoshi Ooshima

Katsumi Iijima

Yojiro Tagawa

Tetsuo Uchiyama

An information processing apparatus includes a detection unit and first and second classification units. The detection unit detects an event which causes a state of at least one bank constituting dynamic random access memory (DRAM) to transition. The first classification unit classifies the at least one bank state based on the detected event. The second classification unit classifies a DRAM state based on the at least one bank state. Statistical information that is based on the at least one bank or DRAM state is displayed with respect to a predetermined unit time. The at least one bank state and the DRAM state each includes at least one of the following: an operating state, in which data is being transferred, an inoperative state, in which data transfer is not possible due to a predetermined constraint, or a pause state, in which, although there is no constraint, data is not being transferred.

Information processing apparatus and information processing method to analyze a state of dynamic random access memory (DRAM)

A communication apparatus comprises a processor, a memory configured to store timer information, a cache configured to store timer information, and a timer controller configured to store timer information regarding an established connection in the cache. The timer controller notifies the processor of a time-out of the timer information stored in the cache and a time-out of the timer information stored in the memory.

Communication apparatus, timer control apparatus, and timer control method

The present invention controls to read encrypted digital data from a detachable storage medium, in which the digital data and a decode key for decoding encryption of the digital data are stored. In reading the digital data, the decode key is read, the decode key is deleted from the storage medium, the encrypted digital data is read, and then encryption of the encrypted digital data is decoded by the read decode key.

Storage medium access control method

A protocol processing apparatus determines a unit size of a bitmap table to be used in reassembly based on the size of a received fragmented IP datagram. A bitmap table is generated according to the determined unit size, and the received fragmented IP datagram is reassembled using the generated bitmap table.

Protocol processing apparatus and processing method thereof

A data recording system and method are provided which, when the removal of a recording medium is detected during data writing, the data recording system retains accessed processing not executed in the data writing, and executes the retained access processing when the removed recording medium is inserted again into the data system.

Data recording system and data access method

A storage managing system and method, the system and method including matching a boundary of a cluster, which is a minimum data unit of a data region of a storage medium having a write protect function, with a boundary of at least one or more consecutive blocks each having a predetermined size, and applying write protection to data in units of the block.

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Yokohama, Japan

Hiroyoshi Ooshima