Abstract:
An image forming system includes a host device and a terminal device connected to the host device. The host device includes a compressing unit, a code-stream transmitting unit, a control-signal receiving unit and a first controller. The code-stream transmitting unit transmits a code stream generated by the compressing unit. The control-signal receiving unit receives a control signal transmitted by the terminal device. The first controller controls the code-stream transmitting unit according to the received control signal. The terminal device includes a code-stream receiving unit, a decompressing unit, a reproduction-image outputting unit, a second controller and a control signal transmitting unit. The decompressing unit generates reproduction image data from the received code stream. The second controller restricts receiving operation of the code-stream receiving unit according to a predetermined condition. The control-signal transmitting unit transmits the control signal when the second controller restricts the receiving operation of the code-stream receiving unit.
Abstract:
The present invention relates to a message transmitting apparatus and method in a mobile communication terminal and solves the problem of a message transmission being stopped when a message size exceeds a message capacity is solved. Also, memory resources of the mobile communication terminal are more efficiently utilized because an additional memory region need not be allocated to a message to be transmitted. The apparatus comprises a message generating unit for generating a message, a buffer for temporarily storing the generated message, a controller for dividing the message stored in the buffer into data blocks, wherein the controller converts a format of the data blocks into a type capable of being transmitted or received via a network and stores the data blocks into a file, and a transmitter for transmitting the message comprising the data blocks having the converted type and stored in the file to a receiving side.
Abstract:
A system, mobile fax terminal, and method for providing fax service for mobile networks. A fax adapter receives fax data from a fax machine via standard fax protocols, maps the fax data onto Transmission Control Protocol (TCP) or User Datagram Protocol (UDP) packets, and sends the mapped data over an Internet Protocol (IP)-based interface to a mobile phone portion. The mobile phone portion maps the TCP or UDP packets onto Radio Link Protocol (RLP) frames, and transmits the RLP frames to an external radio telecommunication network.
Abstract:
Disclosed is a method of transitioning from a facsimile session to a voice session during a call between a wireless user and a facsimile machine. The method comprises sending a procedure interrupt request, sending a procedure interrupt response, sending a procedure interrupt confirmation, negotiating to a voice service option, and then beginning the voice service option.
Abstract:
An imaging apparatus and an imaging method supply an optimum amount of image data to another apparatus. When a PDA has a maximum transfer rate of 1.5 Mbps, a mobile phone determines that the maximum speed of communication with the PDA is low, reduces the amount of moving image data captured by a CCD of the mobile phone accordingly, and supplies the captured moving image data to the PDA. The PDA therefore displays a low-quality moving image on its display unit. When the PDA has a maximum transfer rate of 480 Mbps, the CPU of the mobile phone leaves unchanged the amount of moving picture data captured by the CCD and supplies the captured moving image data to the PDA. The PDA then displays a high-quality moving image on its display unit. The foregoing may be advantageously applied to digital cameras.
Abstract:
In a facsimile system including a gateway apparatus and a transmission-side facsimile apparatus capable of performing facsimile communication via the gateway apparatus, the transmission-side facsimile apparatus codes image data, and packetizes the coded image data so that one line is included in one packet, and transmits the packetized image data to the gateway apparatus. The gateway apparatus receives a packet transmitted from the transmission-side facsimile apparatus, inserts predetermined data into image data included in the received packet, and transmits the image data into which the predetermined data has been inserted, to a receiving-side facsimile apparatus.
Abstract:
Described embodiments provide an IP-aware modem, such as for use in an IP-aware facsimile machine, operable with an IP packet network. The IP-aware modem has voice-band data engine that receives packets from the packet network, converts data in the packets to PCM samples, stores the samples as PCM sample frames in a buffer for further processing by the modem, and determines for each PCM sample frame whether or not during the conversion one or more packets were missing. An equalizer or timing recovery element in the modem adapts using the PCM sample frames and suspends the adaptation for the time period of each PCM sample frame converted without the one or more missing packets. Similarly, searches of the PCM sample frames for certain modem synchronization signals are skipped when, during the search, the searched PCM sample frame was converted without the one or more missing packets.
Abstract:
A communication apparatus obtains image data, generates electronic mail data, and transmits the generated electronic mail data. A size upper limit of the electronic mail data is obtained, the size upper limit being designated by a user, and it is determined whether or not a data size of the generated electronic mail data exceeds a value obtained by subtracting a predetermined value from the size upper limit. If it is determined that the data size of the generated electronic mail data exceeds the value obtained by subtracting the predetermined value from the size upper limit, a plurality of electronic mail data is generated by dividing the image data such that a data size of each of the plurality of electronic mail data does not exceed the value obtained by subtracting the predetermined value from the size upper limit, and the generated plurality of electronic mail data is transmitted.
Abstract:
A communication system includes a data processing device that communicates with a communication device via a first transmission link. The communication device includes a first communication controller that controls communication with the data processing device via the first transmission link, and a second communication controller that controls communication via a second transmission link which is different from the first transmission link. The communication device also includes a transmitter that transmits transmission data sent via the first transmission link through the second transmission link, a canceller that cancels transmission of the transmission data through the second transmission link upon receiving a canceling command via the first transmission link, and an observer that observes whether the communication via the first transmission link, which transmits the transmission data to the communication device, is enabled, in response to receiving the transmission data via the first transmission link.
Abstract:
A method of performing a negotiation session on a modem connection. The method includes receiving a plurality of negotiation signals from the source modem, by a first gateway, forwarding at least some of the received negotiation signals from the first gateway to a second gateway, over a packet based network, receiving, by the first gateway, responses to the forwarded negotiation signals from the second gateway, forwarding the responses from the second gateway to the source modem, by the first gateway, and transmitting from the first gateway to the source modem, response signals to at least some of the received negotiation signals, without receiving a response to the at least some of the signals from the second gateway.