Abstract: A microprocessor unit of a communication terminal device determines whether or not a destination terminal is a communication terminal manufactured by a same manufacturer as the communication terminal device in accordance with a manufacturer code transmitted from the destination terminal. A display unit displays a message to notify a determination result to a transmitter and to urge the transmitter to perform a selection operation for executing or canceling a transmission of image data. When the transmitter selects a function key displayed on the display unit in accordance with the message, the microprocessor unit executes or cancels the transmission of the image data.

Abstract: A color image communication device includes a transmission unit which carries out a facsimile transmission of image data of a sYCC-Joint Photographic Experts Group (JPEG) color space, and a control unit which controls a facsimile transmission of the image data of the sYCC-JPEG color space without setting size information in a facsimile communication protocol when the image data to be transmitted by facsimile is the image data of the sYCC-JPEG color space.

Abstract: A color image communication device includes a transmission unit which carries out a facsimile transmission of image data of a sYCC-Joint Photographic Experts Group (JPEG) color space, and a control unit which controls a facsimile transmission of the image data of the sYCC-JPEG color space without setting size information in a facsimile communication protocol when the image data to be transmitted by facsimile is the image data of the sYCC-JPEG color space.

Abstract: A communication method performed between a transmission side device which cannot execute a communication function of an ITU-T recommendation V.34 communication mode and a reception side device which can execute the communication function of the ITU-T recommendation V.34 communication mode. The reception side device receives a calling signal indicating a request for communication from the transmission side device. The reception side device sends an ANSam signal to the transmission side device. The reception side device measures a time a silent state continues after sending the ANSam signal. The reception side device sends a DIS signal to the transmission side device when the measured time exceeds a predetermined time.

Abstract: A facsimile machine includes a facsimile communication unit, an Internet facsimile communication unit, and a controller that sets to rotate a scanned image by 90 degrees. When the controller sets to rotate the scanned image by 90 degrees, the facsimile communication unit rotates the scanned image by 90 degrees and transmits the scanned image, and the Internet facsimile communication unit transmits the scanned image without rotating the scanned image by 90 degrees.

Abstract: A facsimile machine, which is an analog communication terminal connected to a facsimile machine of another end via an IP network, monitors a silence generating interval by detecting energy of a signal received from the facsimile machine of the other end. When a silent state generates periodically, the facsimile machine judges that the communication is abnormal caused by a packet loss. When the communication is judged to be abnormal, the communication is interrupted or the communication speed is decelerated.

Abstract: A recipient communication terminal device, that can communicate in a V.34 communication mode, communicates with a transmitter communication terminal device, that cannot communicate in the V.34 communication mode. The transmitter device detects whether or not the recipient device includes V.8 communication mode capability in accordance with a received digital identification signal (DIS). When the transmitter device detects that the recipient device includes V.8 communication mode capability, the transmitter device generates a silent state for a prescribed period of time as a response to the received DIS, or stands by without responding to the received DIS until a second DIS is received.

Abstract: A microprocessor unit of a communication terminal device determines whether or not a destination terminal is a communication terminal manufactured by a same manufacturer as the communication terminal device in accordance with a manufacturer code transmitted from the destination terminal. A display unit displays a message to notify a determination result to a transmitter and to urge the transmitter to perform a selection operation for executing or canceling a transmission of image data. When the transmitter selects a function key displayed on the display unit in accordance with the message, the microprocessor unit executes or cancels the transmission of the image data.

Abstract: An image transmitting device includes a scanner that scans an image of a document, a memory that stores scanned image data, a controller that connects to a communication medium and an extracting unit that extracts various pieces of information other than image data included in the stored image data. A converter converts the extracted various pieces of information into extracted image data and transmits the extracted image data along with the scanned image data as transmission image data.

Abstract: A color image communication device includes a transmission unit which carries out a facsimile transmission of image data of a sYCC-Joint Photographic Experts Group (JPEG) color space, and a control unit which controls a facsimile transmission of the image data of the sYCC-JPEG color space without setting size information in a facsimile communication protocol when the image data to be transmitted by facsimile is the image data of the sYCC-JPEG color space.

Abstract: A color image communication device includes a transmission unit which can transmit color image data to a recipient under a first method and a second method, and a control unit which determines whether to transmit the color image data under the first method or whether to transmit under the second method in accordance with a determination of whether or not to print out the color image data at the recipient.

Abstract: A facsimile machine includes a facsimile communication unit, an Internet facsimile communication unit, and a controller that sets to rotate a scanned image by 90 degrees. When the controller sets to rotate the scanned image by 90 degrees, the facsimile communication unit rotates the scanned image by 90 degrees and transmits the scanned image, and the Internet facsimile communication unit transmits the scanned image without rotating the scanned image by 90 degrees.