Canon Kabushiki Kaisha

Hitachi Electronics Engineering Co., Ltd.

Akihiro Matsumoto

Kazuyuki Saito

Tadanori Nakatsuka

Tohru Niki

Toru Niki

Kenichi Shitara

An information processing apparatus that functions as a SUB controller that, for a command group formed of pairs each formed by a command prepared by a host controller and a status, executes processing of each command and returns a status of an execution result of the command processing. In response to a request for processing the command group from the host controller, the SUB controller acquires the command group therefrom as an original command sequence. The original command sequence is divided into a plurality of segments each formed by one or more commands and having a total volume not larger than a threshold. Command groups each formed of pairs each formed by a command and a status are independently set in one or more storage devices connected to the information processing apparatus. Each storage device is notified of a command processing request on a segment-by-segment basis.

Information processing apparatus that controls memory system, method of controlling same, and storage medium

An information processing apparatus in which a controller continues transmission, based on a status in which a response to a writing instruction is received from a first storage device, and a response to the writing instruction is not received from a second storage device, of data to the first storage device, and stops transmission of data to the second storage device, and based on a status in which a second communication IF receives a completion notification of storing of the data that is issued by the first storage device, a first communication IF transmits a completion notification of processing corresponding to the writing instruction.

Information processing apparatus

The present disclosure provides an electronic device including a main controller and a communication controller configured to communicate with the main controller and a device through a predetermined physical communication interface based on a predetermined communication standard. The communication controller instructs power-off of the predetermined physical communication interface and the device when an event which causes transition to a power saving state occurs in the main controller, and determines whether the predetermined physical communication interface is to be returned from the power saving state without power-on of the device or with power-on of the device when an event which causes return from the power saving state occurs in the main controller.

Electronic device and method for controlling the same

An information processing apparatus comprising a first controller, a second controller provided between the first controller and a storage device, and a main controller that sets a power saving state of the first controller, the second controller and the storage device. The first controller transitions to the power saving state in response to a transition request from the main controller, the second controller transitions to the power saving state in response to the power saving state to which the first controller has transitioned, and the first controller starts restoration processing from the power saving state in response to an interrupt from the main controller and determines, based on whether the second controller is performing power control on the storage device, whether to execute preprocessing which is accompanied by access to the storage device.

Apparatus, method, and storage medium for controlling a power saving state in a SATA storage system

An image forming apparatus which is capable of analyzing a failure of an IC that has a high degree of independence and in which no recording area can be added to an internal memory. The image forming apparatus has a controller equipped with a storage device. Execution results of a plurality of event processes for events relating to the controller are recorded in the storage device. What is recorded in the storage device is output from the controller. A scope of what is recorded in the storage device is specified.

Storing and outputting log for failure analysis in image forming apparatus equipped with SATA system, control method therefor, and storage medium

A functional device which surely prevents tampering performed through an external interface in the functional device comprising an external interface which is accessible to an internal functional component is provided. In the functional device, a coupling controller is provided between an external Flash terminal which is an external interface and an internal Flash memory. The coupling controller physically blocks between the external Flash terminal and the internal Flash memory after a Fuse is disconnected except for a case where a certification result in a REG maintains validity. The certification result is validated only while current is carried.

Functional device and control apparatus

The present information processing apparatus is provided with a flash memory divided into a plurality of areas based on characteristics of information to be stored therein. The present information processing apparatus detects a problem in data stored in each area using a different method for each area, and repairs the detected problem using a different method for each area.

Information processing apparatus, control method thereof, and storage mediumMD

A control apparatus configured to control power of a device that communicates with a host system via a communication interface which complies with a predetermined standard includes a reception unit configured to receive a signal indicating that the host system transitions to a predetermined power state and a determination unit configured to determine, according to reception of the signal indicating that the host system transitions to the predetermined power state, a power state of each of the device and a physical layer of the communication interface used by the device from a plurality of power states, based on a power state of the host system, a power state of the device, and a power state of the physical layer of the communication interface included in the device and complying with the predetermined standard.

Image forming apparatus and power control method for image forming apparatus

Even when a main board is replaced, if no change is made to a connected storage unit, existent mirroring information is obtained to resume mirroring function processing. An information processing apparatus that performs mirroring to store same data in a plurality of storage units includes a first storage unit configured to store mirroring information indicating a state of the mirroring in a memory of a main board, a second storage unit configured to store the mirroring information in a memory of a sub board, a detection unit configured to detect replacement of the main board, and a restoration unit configured to restore the mirroring information stored in the memory of the sub board by the second storage unit in a memory of a replaced main board in accordance with detection of the replacement of the main board by the detection unit.

Information processing apparatus, control method for the information processing apparatus, and recording medium

A stress of a user caused by a waiting time at the time of activation of a printing apparatus or at the time of return from a power save mode to a normal mode is reduced. An information processing apparatus having a storage device includes a control unit configured to control the information processing apparatus and a storage control unit configured to control the storage device in accordance with instructions transmitted from the control unit, and the storage control unit transmits information indicating that communication with the storage device has been established to the control unit in response to a communication establishment request from the control unit before the communication with the storage device is established.

Information processing apparatus and control method thereof for reducing transition time from a power-save mode

An image forming apparatus for processing print data is disclosed. The image forming apparatus includes a control unit configured to control a plurality of nonvolatile storage devices having different transfer rates, and a determination unit configured to determine a nonvolatile storage device to store print data from among the plurality of nonvolatile storage devices based on information related to a size of the print data, information related to the transfer rates of the plurality of nonvolatile storage devices, and a threshold value depending on the number of sheets to be printed and output per unit time. The control unit and the determination unit are implemented by one or more processor.

Image forming apparatus and method for controlling image forming apparatus

When a controller receives a new command from a main controller during overwrite-deletion processing for a specific storage apparatus, the received command is stored at least until completion of the overwrite-deletion processing when the received command is a command to the specific storage apparatus. Alternatively, progression of overwrite-deletion process is stored and priority processing of the received command is executed. On the other hand, when the received command is not a command to the specific storage apparatus, processing for the command is executed.

Control apparatus and control method therefor

In an electronic apparatus of this invention, after a security function is canceled, it is determined whether the elapsed time from cancellation of the security function to detection of attachment of a device having a security function of security level higher than that of the canceled security function or the elapsed time until the operation of the attached device is enabled has exceeded a predetermined time. Upon determining that the elapsed time has exceeded the predetermined time, the electronic apparatus enables the canceled security function again.

Electronic apparatus and method of controlling the same

A power transmitting apparatus for transmitting the power to a power receiving apparatus includes a power transmitting unit configured to wirelessly transmit the power, a receiving unit configured to receive from other power transmitting apparatuses currently transmitting the power the information about the resonance frequencies used for the current power transmission, and a resonance frequency determination unit configured to, based on the resonance frequency information, determine a resonance frequency to be used for power transmission by the power transmitting unit.

Growing community of inventors

Toride, Japan

Akihiro Matsumoto