Canon Kabushiki Kaisha

Eiji Imao

Tetsuo Ido

An apparatus generates an image file having a structure including a first region and a second region, the first region storing a plurality of instances of image data and the second region storing metadata pertaining to the plurality of instances of image data. The metadata includes synchronous group information that groups image data shot synchronously with respect to time, the synchronous group information indicating image data, among the plurality of instances of image data, belonging to a group created by the grouping, and indicator information that indicates an indicator of grouping for the group indicated by the synchronous group information. The apparatus configures the synchronous group information and the indicator information based on the shooting information, and generates the image file storing the plurality of instances of image data, and the configured synchronous group information and the configured indicator information.

Image processing apparatus, control method, and storage medium

An apparatus generates an image file including a first region storing a plurality of instances of image data and a second region storing metadata. The metadata includes group information that groups image data shot synchronously with respect to time, the group information indicating image data belonging to a group, and indicator information that indicates an indicator of grouping for the group. The apparatus sets a reference indicating whether the image data has been shot synchronously with respect to time, determines whether the image data has been shot synchronously with respect to time, configures the group information grouping the image data to have been shot synchronously with respect to time, configures the indicator information including at least information of the reference, and generates the file storing the plurality of instances of image data, the group information, and the indicator information.

A communication apparatus notifies a partner terminal of delayed acknowledgement (ACK) information, and the partner terminal determines a retransmission time out (RTO) minimum value based on the delayed ACK information. The communication apparatus notifies the partner terminal of the delayed ACK information using a transmission control protocol (TCP) header option at the time of a TCP connection, or using an application. Alternatively, the communication apparatus provides the delayed ACK information for an ACK packet when transmitting a delayed ACK. The partner terminal determines the RTO minimum value in such a manner that the RTO minimum value does not fall below an acquired delayed ACK timer value.

Communication apparatus, method for controlling communication apparatus, and program

A communication apparatus having a first state and a second state having different power consumptions receives a communication start request from another communication apparatus when the communication apparatus is in the first state, shifts a state of the communication apparatus to the second state having power consumption which is larger than that of the first state, in response to the reception of the communication start request, and transmits a response to the communication start request to the another communication apparatus if the communication setting used for the communication with the another communication apparatus is not changed after shifting to the second state, and does not transmit a response indicating that the communication in accordance with the communication start request is available to the another communication apparatus if the communication setting is changed.

Communication apparatus, control method for communication apparatus, and recording medium

There is provided a communication apparatus in which power consumption by wired connection is reduced in a standby state. An acquisition unit acquires information indicating whether a partner apparatus connected to the communication apparatus by wired connection has a function of waiting in a power saving state in the wired connection. Based on the acquired information, a setting unit sets a communication speed with the partner apparatus. The function of waiting in the power saving state in the wired connection is, for example, LPI (Low Power Idle).

Communication apparatus and control method therefor

A processing apparatus that processes received IP packets comprises a control unit and a processing unit, wherein the control unit controls a first memory. While data indicating a reception state of fragmented IP packets is transferred from a second memory to the first memory, the processing unit performs processing for determining whether a header of an IP packet has been properly received. The processing unit instructs the control unit to update the data stored in the first memory depending on a result of the processing for determining whether the header of the IP packet has been properly received.

Processing apparatus and method for processing IP packets

An information processing apparatus includes a communication device configured to communicate with a client apparatus via a network, an application system device configured to implement a previously installed application function, and a power controller configured to, if the communication device receives a request for starting a communication performed by the application system device from the client apparatus when the application system device is in a low power consumption state, restore the application system device from the low power consumption state to a normal power consumption state.

Information processing apparatus having a low power consumption state and releasing the low power consumption state to perform communication, and power control method therefor

An application device includes a network communication unit and an application system unit. The application system unit executes application communication utilizing one of a first TCP/IP protocol processing performed by the network communication unit and a second TCP/IP protocol processing performed by the application system unit. The network communication unit switches the process with which the application communication is processed to one of the first TCP/IP protocol processing and the second TCP/IP protocol processing based on a communication condition of the application communication.

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Yokohama, Japan

Eiji Imao