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:
In a client device (1) including OBject EXchange protocol (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 transmitter apparatus transmits transfer data having a predetermined amount to a receiver apparatus. The apparatus includes a data packet generating section dividing the transfer data into multiple divisional data sets; an error detection/correction code adding section 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 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 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 plurality of connection frames are transmitted which differ from each other in at least either modulation scheme or transfer rate. Accordingly, a receiving-end device can properly receive a connection frame even in an environment where the connection frame is likely to be affected by noise.
摘要:
A content transmission device (11) transmits communications data by infrared. The content transmission device (11) includes: a one-way communications section (48) for transmitting the communications data by one-way communications; a two-way communications section (49) for transmitting the communications data by two-way communications; and a control section (40) for selecting which of the one-way communications section (48) and the two-way communications section (49) transmits the communications data.
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 communications device 1a is a primary station which communicates with a secondary station. The communications device includes a communications protocol analyzing section 160a and a protocol control section 110. The section 160a is capable of receiving both a first response to the first-connection-routine command and a second response to the second-connection-routine command. The first and second responses are distinguishable from each other. The section 160a determines by analyzing an incoming response whether the response is the first response or the second response. The section 110 connects to the secondary station using the first protocol if the communications protocol analyzing section 160a determines that the response is the first response and using the second protocol if the communications protocol analyzing section 160a determines that the response is the second response.
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.