Abstract: According to one embodiment, a wireless communication device includes a receiver configured to receive a plurality of first frames which are transmitted by multiplexing; and a transmitter configured to transmit a second frame containing check results indicating whether the plurality of first frames are successfully received and first information specifying at least one wireless communication device. The receiver is configured to receive a plurality of third frames transmitted by multiplexing in response to the second frame.

Abstract: A performance information server comprises: a request acquisition unit that acquires a request including machine-type information for a work machine, and a performance information request to indicate performance information for the work machine; a storage unit that stores specification data for the work machine in association with the type of the work machine; a control unit that acquires the machine type information included in the request and the performance information for the work machine, on the basis of the specification data corresponding to the machine type information; and a response presentation unit that presents a response including the performance information acquired by the control unit.

Abstract: An operation assistance module operates in coordination with an operation control unit that controls the actions of a work machine, or with an operation control unit of an image generation application that controls the actions of an image of the work machine displayed on a display unit, wherein the operation assistance module has: a request issuance unit that transmits, to a performance information server, a request including machine type information for a work machine and a performance information request to indicate performance information for the work machine; a response acquisition unit that receives from the performance information server a response including the requested performance information; and an operation assistance unit that reflects the acquired performance information in the control of the operation control unit.

Abstract: A machine-position-information management system is disclosed, which is capable of reducing the transmission and data management costs in management of the work positions of machines. In the machine-position-information management system for a crane, a transmission controller determines whether the crane has started work, based on a result of the detection by a work-state detector, and when determining that the crane has started work, the transmission controller outputs the position information acquired from a GPS sensor at this time to a data management unit from a remote communication system. The data management unit is configured to save the position information when the crane starts the work and to output the saved position information upon request for use.

Abstract: The present invention provides a standardized interface between an conversion program and an applications program where the conversion program processes input data for the applications program. The interface advantageously provides in place conversion of the input data when the applications program operates in a multi-window environment. By using a standardized interface, applications programs may be simplified, while any conversion program may be reused in conjunction with any applications program.

Abstract: In text formatting apparatus, means for inputting text, means for restricting formatting each line, means for storing characters to be used in the restriction formatting, and means responsive to a given command for changing the stored characters.