摘要:
In a client device (1) including OBEX, a lower layer processing section (13) below an OBEX processing section (12) generates a pseudo response command for a request command, and notifies the pseudo response command to the OBEX layer processing section (12). This makes it possible for the client device (1) to communicate, via object exchange, with a server device having no transmitting function.
摘要:
A receiving device receives, using wireless communication, (i) a connect packet for establishing a communication connection (9,600 bps) and (ii) a data packet which contains transfer data and whose communication speed (for example, 4 Mbps) is higher than that of the connect packet. The receiving device includes: an error status judging section for judging, when a reception status satisfies a predetermined first reception failure pattern, that a reception of the connect packet has failed; and a cause-of-error output section for, when the reception failure of the connect packet has occurred, outputting cause information, indicating the cause of the reception failure, to a user interface. Therefore, even if an error has occurred in the data transfer, the user can easily recognize an appropriate solution for the receiving device.
摘要:
A two-way transmission system of the present invention is arranged in such a manner that, when a host-side controller confirms the receipt of an IN packet from a USB host, the host-side controller transfers the IN packet to a function-side controller, and receives a DATA packet from the function side. The received DATA packet is temporarily stored in a FIFO. At the time of the receipt of the IN packet again, the host-side controller supplies, to the USB host, the DATA packet stored in the FIFO.
摘要:
A data transmitter includes (a) first communication means performing data transmission according to IrDA Standard, (b) second communication means performing data transmission that does not comply with the IrDA Standard and (c) means for switching between a process performed by the first communication means and a process performed by the second communication means. The second communication means includes (a) management information transmitting means for sending management information for managing transmission target data according to a data transmission prosecution command from a user, (b) communication capability information receiver means for receiving communication capability information indicating communication capability of a device that has responded to the transmission of the management information and (c) data transmission means for transmitting a packet including the transmission target data on the basis of the communication capability information. This can make the communication time shorter than the conventional communication time in infrared communication.
摘要:
A transmitter apparatus 1 transmits transfer data having a predetermined amount to a receiver apparatus. The apparatus 1 includes: a data packet generating section 132 dividing the transfer data into multiple divisional data sets; an error detection/correction code adding section 133 adding an error detection code (error detection information) by which an error in the divisional data sets is detected to each of the divisional data sets; and a transmitter section 14 transmitting the multiple divisional data sets to which the error detection code is added all together. Thus, data transfer is very reliable. It takes less time to transfer data.
摘要:
A two-way transmission system of the present invention is arranged in such a manner that, when a host-side controller confirms the receipt of an IN packet from a USB host, the host-side controller transfers the IN packet to a function-side controller, and receives a DATA packet from the function side. The received DATA packet is temporarily stored in a FIFO. At the time of the receipt of the IN packet again, the host-side controller supplies, to the USB host, the DATA packet stored in the FIFO.
摘要:
A transmitter (1) which transmits a predetermined amount of transfer data using an infrared ray includes: a controller (13) for transmitting an SNRM command to the other station without transmitting a station-search command (XID) for searching the other station, the SNRM command including parameters such as maximum transferable speed and maximum receivable data length of the transmitter (1); and a transmission section (14). Consequently, it is possible to shorten a time necessary for a connection between the transmitter and the receiver. This allows shortening a time from the start of communication to the end of the communication in transmitting information data.
摘要:
A transmission device is capable of transmitting data to a reception device via a transmission route and includes a digital content storage section for storing data under copyright protection. The data stored in the digital content storage section includes protection information for indicating whether the data is under copyright protection or not. The transmission device includes a copyright protection detection section for detecting whether data, transmission of which has been instructed, is under copyright protection or not and a transmission disallowance notification section for transmitting, to the reception device, transmission disallowance data indicating that the data is incapable of being transmitted because of copyright protection when it is detected that the data is under copyright protection. Therefore, it is possible to provide a transmission device and a reception device which keeps a user from being confused when the user instructs to transmit data incapable of being copied.
摘要:
A host-side control section of a host-side controller, when having received a SOF packet transmitted from a host to a device, avoids transmission of the received SOF packet to a device side. A device-side control section of a device-side controller transmits a SOF packet to the device at a predetermined interval after connection between the host and the device has been established. This eliminates the need for SOF packet transmission between the controllers. Thus, a communication bandwidth between the controllers of low communication speeds can be used only for packets other than the SOF packet. This increases communication efficiency of these other packets.
摘要:
A transmitter (1) which transmits a predetermined amount of transfer data using an infrared ray includes: a controller (13) for transmitting an SNRM command to the other station without transmitting a station-search command (XID) for searching the other station, the SNRM command including parameters such as maximum transferable speed and maximum receivable data length of the transmitter (1); and a transmission section (14). Consequently, it is possible to shorten a time necessary for a connection between the transmitter and the receiver. This allows shortening a time from the start of communication to the end of the communication in transmitting information data.