Canon Kabushiki Kaisha

Kaori Nakagawa

Tomoyuki Takeda

Shunichi Tachibana

Akemi Sato

Toru Nakayama

Hideki Shimizu

Mitsuo Morita

Masashi Kimura

Hiromichi Uno

Takehiro Yoshida

Toru Maeda

Koichi Matsumoto

Makoto Kobayashi

Hisao Terajima

Toshio Kenmochi

Kouichi Matsumoto

Toru Fujino

Shigeru Koizumi

Shinichiro Kohri

Kazuhiro Uruma

Muneki Nakao

Kenzo Sakakibara

An information processing apparatus includes a detection unit that detects a start of using a voice communication unit in a set period during processing for establishing a connection with another information processing apparatus for performing remote assistance for the information processing apparatus, a display control unit that, when a start of using the voice communication unit is detected, displays a notification screen including a telephone number set as contact information of an assistance source of the remote assistance and an instruction object for instructing to make a phone call to a communication destination corresponding to the telephone number, and a calling unit that, when a phone call to the communication destination is specified via the instruction object in the notification screen, makes a phone call to the communication destination.

Information processing apparatus, information processing method, and storage medium

An information processing system in which an image forming apparatus and an information processing apparatus are connected and in which remote support of the image forming apparatus is performed from the information processing apparatus. The image forming apparatus connects to a telephone network to perform a call with the information processing apparatus, determines whether or not the call is by a predetermined connection, and, upon determining that the call is by the predetermined connection, switches communication with the information processing apparatus to a call in accordance with HTTP media.

Information processing system, image forming apparatus, method of controlling the same, and storage medium

A communication apparatus that includes a buffer, an acquisition unit, a packet processing unit, and a control unit performs packet communication of image data as audio data via a first channel and performs procedure signal exchange via a second channel. The buffer temporarily stores transmitted and received packets to synchronize the packets between a transmitting and a receiving side. The acquisition unit acquires a number of packets stored in the buffer. The packet processing unit performs packet processing by discarding a packet stored in the buffer where the number of acquired packets exceeds a first threshold value, and inserting a silent packet in the buffer where the number of acquired packets does not exceed a second threshold value. The control unit performs procedure signal exchange according to a packet stored in the buffer in which the number of packets is adjusted upon completion of the performed packet processing.

Communication apparatus, method for controlling communication apparatus, and storage medium

There is provided a technique of, in a communication apparatus capable of executing facsimile communication by a deemed voice scheme, enabling generation of a communication error to be prevented regardless of a voice encoding scheme used to encode a facsimile signal. To achieve this, a communication apparatus (first FAX apparatus) establishes a voice signal transmission session with the second FAX apparatus serving as a partner apparatus in FAX communication for FAX communication by the deemed voice scheme. The first FAX apparatus determines a voice encoding scheme which is used in the established session to encode a FAX signal into a voice signal. In accordance with the determination result, the first FAX apparatus limits modulation schemes usable in generation of the FAX signal when performing FAX communication by the deemed voice scheme.

Communication apparatus, control method thereof and storage medium

A facsimile apparatus which makes it possible to certainly perform facsimile communication via an IP network. The facsimile makes connection with a communication destination according to Session Initiation Protocol to perform facsimile communication with the communication destination via an IP network. A first connection sequence of starting call connection using a session of performing image communication is executed, and then a second connection sequence of starting call connection using a session of performing voice communication is executed. When one of the first connection sequence and the second connection sequence fails in the call connection, the other of the first connection sequence and the second connection sequence executes the call connection.

Facsimile apparatus that connects via session initiation protocol and control method therefor, as well as storage medium

Provided are a facsimile apparatus, a communication apparatus, and a communication method that perform communication using a session established according to a session initiation protocol (SIP). If an INVITE in which a media type is designated as 'audio' is received, an INVITE in which a media type is designated as 'image' is transmitted. If a success response is made to the transmitted INVITE, an image session is established and facsimile communication or image communication is executed. If an error response is made to the transmitted INVITE, calling processing for calling an operator is started.

Facsimile apparatus, communication apparatus, communication method and storage medium

A communication apparatus complying with the ITU-T Recommendations v.34 and control method thereof are disclosed. The communication apparatus predicts a timing at which reception of image data in an amount of the error frames sent from another communication device is terminated, based on the number of error frames which are not normally received when receiving image data from the another communication device through a primary channel. The communication apparatus controls to shift from the primary channel to a control channel in accordance with the predicted timing when the image data is received in an amount of the error frames on the primary channel from the another communication device.

Communication apparatus and control method thereof

When facsimile data is transmitted by performing facsimile communication, a public line is seized. Then, when the public line is seized, it is a determined which of a dial tone signal or a voice signal for phone call a signal received from the public line is, it is controlled to perform the facsimile communication in a case where the received signal is determined as the dial tone signal, and it is controlled not to perform the facsimile communication in a case where the received signal is determined as the voice signal.

Facsimile apparatus, its control method, program and storage medium

An incoming call from a public communication network is sensed in a communication apparatus that is capable of switching between an automatic response mode and a manual response mode as a response to an incoming call. If incoming of a specific call signal has been sensed, the response to this incoming call is switched from the automatic response mode to the manual response mode.

Communication apparatus and method of controlling same

A CI signal of a V.8 protocol is transmitted in response to the reception of a DIS signal indicating the provision of a V.8 facility, and the V.8 protocol is executed in response to the reception of an ANSam signal of V.8, and when the DIS signal indicating the provision of the V.8 facility is received without receiving the ANSam signal, the CI signal is retransmitted. When a transmitting station or a receiving station does not have a V.34 facility after the V.8 protocol, the DIS signal indicating the non-provision of the V.8 facility is transmitted. Thus, when the V.8 protocol facility is provided with a facsimile apparatus, communication with a conventional apparatus having only a T.30 protocol is attained.

Facsimile apparatus having V.8 protocol facility and facsimile communication method

A facsimile apparatus capable of recalling a destination for retransmission when the transmission ends with a transmission error, comprises a memory unit for storing image data page by page; a transmission unit for transmitting the image data stored in said memory unit page by page; a detection unit for detecting a transmission error during the transmission of the image data by said transmission unit; an error page memory unit for storing a transmission error page based on the detection result by said detection unit; a line control unit for terminating the transmission with error and recalling the error terminated destination based on the detection of the transmission error by said detection unit; and a retransmission unit for causing said transmission unit to retransmit the image data stored in said memory unit from the error page stored in said error page memory unit after the line connection by the recalling by said line control unit.

Facsimile apparatus

A communication apparatus comprises a communicating circuit, a connecting unit for connecting a telephone or the communicating circuit to a line, a disconnecting unit for disconnecting the telephone from the line, a call reception detection circuit, a detection circuit for detecting a hook state of the telephone, an output unit for outputting a signal indicating that the call generation limitation mode has been set, a display for displaying that the apparatus is in the call generation limitation mode, and a dial signal transmission unit. A call generation of an attached telephone can be limited with a simple construction and a call generation limiting function of the data communication apparatus can be certainly realized.

Communication apparatus with outgoing call limiting

Disclosed is a facsimile apparatus equipped with an automatic answering telephone function, as well as a communication method in this apparatus. When a tone signal from a line is detected after the start of storage of a voice message in response to an incoming call, the voice message presently being recorded is not counted as a received message and a voice message received next is stored in the area in which storage has just been performed. Further, when a DTFM signal, which is a control signal of the automatic answering telephone, is detected, a transition is made to facsimile communication in response to a CNG signal. Thus, erroneous operation in facsimile communication due to a CNG signal recorded in the automatic answering telephone is prevented.

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Yokohama, Japan

Kaori Nakagawa