Canon Kabushiki Kaisha

Tomoya Sakai

Kensuke Yasuma

Kazuya Taniguchi

Kenichi Fujii

Yukio Numakami

Makoto Kunimatsu

Franck Denoual

Frédéric Maze

Jonathan Taquet

Naël Ouedraogo

A communication apparatus for communicating a push message with another communication apparatus, comprises an obtaining unit configured to obtain time information to synchronize a period in which processing related to the push message is possible with the other communication apparatus; and a communication unit configured to execute, during a period of processing in which the processing related to the push message is possible and which is specified based on the time information obtained by the obtaining unit, push message communication with the other communication apparatus.

Push message communication apparatus

The invention relates to a method for transmitting from a server to a client, encoded media data corresponding to a projection of a wide view of a scene, the method comprising: Encapsulating the encoded data into tracks, Wherein information is provided for signaling that the client needs to parse other encoded data to display at least the encoded data encapsulated in a given track.

Method, device, and computer program for transmitting media content

An apparatus generates a plurality of albums including a first album and a second album, and includes a page generation unit to generate common pages to be arranged in both albums and individual pages including a first individual page to be arranged in the first album and not in the second album, and a second individual page to be arranged in the second and not in the first. The first album is album data that a first object is set as a main object. An image including the first object is arranged in the first individual page. The second album is album data that a second object is set as a main object. An image including the second object is arranged in the second individual page. A determination unit determines an arrangement order of the common pages and the individual pages.

Information processing apparatus, information providing apparatus, control method, and storage medium in which virtual viewpoint video is generated based on background and object data

An information processing apparatus receives, from a server apparatus, image data of one or a plurality of partial areas of a plurality of partial areas forming an image. The information processing apparatus comprises: a designating unit configured to designate a region of interest in the image; an establishing unit configured to establish a connection as a logical communication path to the server apparatus, and establish, as a plurality of streams based on the connection to the server apparatus; a control unit configured to control the plurality of streams such that the image data of the region of interest is obtained preferentially to the partial area; and a receiving unit configured to receive image data from the server apparatus by using the plurality of streams controlled by the control unit.

Information processing apparatus, control method of the same, and storage medium

A communication apparatus receiving data included in a content from a transmitting apparatus by using a logical connection with the transmitting apparatus includes a notifying unit configured to notify the transmitting apparatus of information regarding an amount of data that the communication apparatus permits transmission of data using the logical connection from the transmitting apparatus to the communication apparatus, a receiving unit configured to receive data included in the content transmitted from the transmitting apparatus in response to the notification performed by the notifying unit, and a control unit configured to control so as to inhibit the notification by the notifying unit until the logical connection is disconnected in a case where the amount of data not received by the receiving unit of the data included in the content is smaller than a predetermined value.

Communication apparatus, communication method, and storage medium

An information processing apparatus that receives image data from a server apparatus, comprising: a generation unit configured to generate a push instruction that includes identification information regarding one or more projection methods of a plurality of projection methods that are applicable to a projection target image; a transmitting unit configured to transmit a push instruction generated by the generation unit to the server apparatus; and a receiving unit configured to receive image data pushed from the server apparatus in response to a push instruction transmitted by the transmitting unit, the image data being generated by projecting a projection target image, using a projection method that is decided based on identification information that is included in the push instruction.

Information processing apparatus, method for controlling the same, and storage medium

A communication apparatus establishes a connection and at least one stream for communication with another communication apparatus, determines a first window size relating to a buffer size for the connection and a second window size relating to a buffer size for the at least one stream based on communication information about communication between the communication apparatus and the other communication apparatus, and transmits to the other communication apparatus the first and second WINDOW_UPDATE frames.

Communication apparatus, communication method, communication system, and storage medium

When, in communication using a protocol in which at least two streams are established over a connection, a notification that a new stream will be reserved is made, a process for preventing a non-communication state exceeding a predetermined amount of time is initiated and a frame is sent at least every predetermined amount of time in the case where there is no other stream currently reserved, whereas processing is ended without initiating the stated process in the case where there is already a reserved stream.

Communication device, communication system and medium

A communication apparatus includes a memory that stores instructions, and a processor that executes the instructions. The instructions are executed to transmit to another communication apparatus a notification for requesting a predetermined type of packet which is used by the communication apparatus for changing an operation mode of the communication apparatus from a first operation mode to a second operation mode higher than the first operation mode in power consumption, and to determine, in a case where the predetermined type of packet is received from the another communication apparatus during a test time period according to the notification, the first operation mode as an operation mode of the communication apparatus after the test time period. The operation mode of the communication apparatus is set to the first operation mode according to such a determination.

Communication apparatus, method of controlling the same, and non-transitory computer-readable storage medium

A communication apparatus includes a first acquisition unit and a determination unit. The first acquisition unit acquires a number of messages to be transmitted to another communication apparatus. The determination unit determines, based on the number of messages acquired by the first acquisition unit, a communication protocol to be used for a communication with the another communication apparatus from a plurality of communication protocols.

A communication apparatus transmits identification information for identifying a push message to be transmitted to the communication apparatus to a relay apparatus by using the first transmission unit, receives, from the relay apparatus, a push message transmitted by the relay apparatus after the first transmission unit transmits the identification information to the relay apparatus, and performs a process for switching the operation mode of the communication apparatus from the first operation mode to the second operation mode lower than the first operation mode in power consumption after the first transmission unit transmits the identification information to the relay apparatus.

Communication apparatus and control method thereof

A communication apparatus stores data to a storage unit, receives a first request signal from a first other communication apparatus by a wireless communication that complies with a first communication method, determines, if the first request signal is received, whether or not target data to be transmitted is stored in the storage unit, performs, if the target data is determined to be stored in the storage unit, connection processing by using a wireless communication that complies with a second communication method different from the first communication method, and transmits, if the connection processing is performed, target data by using the wireless communication that complies with the second communication method, wherein if the target data is determined to not be stored in the storage unit, the connection processing is not performed.

Growing community of inventors

Kawasaki, Japan

Tomoya Sakai