摘要:
A message division communication method and system are disclosed for a communication system comprising a host, an intermediate device connected to the host through a high-speed bus and a remote device connected to the intermediate device or the host through a low-speed bus. A message is transmitted in such a manner that the host designates and notifies the remote device of a maximum message length determined in a way corresponding to the transmission rate of the low-speed bus and divides the message into division messages each not exceeding the maximum message length thereby to transmit and receive the division messages between the host and the remote device. Even with a communication system in which low-speed and high-speed buses coexist, a message can be transmitted and received by a common communication control scheme.
摘要:
In a path audit control method, (1) a unit (a discrete unit or common unit) within a switch holds bitmap information indicating whether each channel identifier is being used to establish a path; (2) a central controller sends the unit bitmap information indicating whether each channel identifier has been used to establish a path; (3) the unit compares bitmap information which it itself is holding with bitmap information that has been sent from the central controller; and (4) if the bitmap information held by the unit and the bitmap information that has been sent from the central controller do not match, the central controller and the unit cooperate to execute matching processing in such a manner that the compared items of bitmap information will be made to match.
摘要:
An RS232C driver inside target firmware controls an RS232C interface. An OS debugger steals an input to and an output from another function block that is the actual target firmware, and exchanges that input and output with the RS232C driver 1005. This configuration makes it possible to easily connect a device that executes the target firmware to, for example, a personal computer, using a general purpose RS232C interface, and makes it possible to easily obtain debugging operation using the PC side debugger.
摘要:
In an ATM switching unit, action information indicative of a cell of a presently operable system is stored into such a cell received from a line which is used as the line for the presently operable system, among cells received from duplicated lines, and also standby information indicative of a cell of a spare operation system is stored into such a cell received from a line which is used as the line for the spare operation system in an individual unit. Thereafter, the cells are transferred to a common unit. In this common unit, the cell into which the standby information has been stored is discarded by an IVC unit. Subsequently, transfer destination address information of the cell into which the action information has been stored is specified, and this specified cell is transferred to an output path thereof.
摘要:
The quality and performance of the connectionless communications system are improved. When a BOM is received, the destination address DA of the L3-PDU stored in the payload of the BOM is retrieved, and the tag information is obtained from the DA (S11). The output message identifier MID is reserved (S12), and the tag information and output MID are assigned to the BOM (S13). Then, the tag information and output MID are written to the table. When a COM is received, the tag information and output MID are retrieved using the MID of the COM as a key, and the information is provided for the COM (S31 and S32). When an EOM is received, the tag information and output MID are retrieved using the MID of the EOM as a key, and the information is provided for the EOM (S41 and S42). Then, the output MID is released (S43).
摘要:
A switch station including an ATM switch; a memory storing control data for operations of the switch station; an intra-station device, accommodating a subscriber line, performing communication operation on subscriber ATM cell; a control processor generating control information in link access protocol (LAP) format; and an interface unit converting LAP control information into ATM cell to the intra-station device through the ATM switch, wherein the control information is communicated according to LAP, the intra-station device receives the control information and transmits a direct memory access request to obtain control data stored in the memory, the interface unit obtains and converts the data format of the control data into ATM cell to transmit to the intra-station device through the switch, and the intra-station device performs the communication operation on the subscriber ATM cell based on the control data received through the switch.
摘要:
A link unit of a mobile phone operates to establish a connection with one PC selected by the user in a state linkable with a plurality of PCs. The selected one PC checks to see that device information on the mobile phone has been registered in the device itself and operates to establish the connection. After the connection is established in this manner, device link processing is executed between the mobile phone and the one PC.
摘要:
A program causes a pc 2 to execute a process including: transmitting information for use for a connection of wireless communication, the information being of the pc 2 executing any one of a station function and an access point function of wireless communication, to a mobile phone 3 to executing the other function at request of the mobile phone 3 to transmit the information; and requesting the mobile phone 3 to transmit the information of the mobile phone 3 when receiving a notification of receipt of the transmitted information from the mobile phone 3.
摘要:
A method for linking between a first information communication device and a second information communication device in wireless communication. The method includes transmitting, by the first information communication device executing any one of a station function and an access point function of wireless communication, information for a connection to the second information communication device executing the other function and storing, by the second information communication device, received information. The method also includes requesting, by the first information communication device, the second information communication device to transmit the information and storing, by the first information communication device, the received information.
摘要:
A program causes a PC 2 to execute the processes including: adding an identifier for use for identification of the PC 2 to an SSID for use when operating normally as an access point (PC-AP) of wireless communication, and when receiving a request to search an access point from a mobile phone 3 (mobile phone-STA) executing a station function, transmitting a new SSID obtained as a result of addition as a response to the search request.