摘要:
A communication system has a server, base station devices, and terminal devices. The server notifies each base station device of a transmission order of a synchronization signal and of the base station device that is designated as a reference. Each one of the base station devices transmits a synchronization signal to the corresponding terminal device based on the transmission order in a case where the one base station device has been designated as the reference. In the case where the one base station device has not been designated as the reference, the one base station device transmits the synchronization signal to the corresponding terminal device at a timing calculated based on a reception timing by the corresponding terminal device of a synchronization signal received from the reference base station device, a transmission order of the reference base station device, and the transmission order of the one base station device.
摘要:
A distribution data presence/absence information generation section generates distribution data presence/absence information indicating whether or not data is included in a frame. A synchronization information generation section generates synchronization information including the distribution data presence/absence information.
摘要:
The present invention relates to a communication system capable of reducing processing loads imposed on a base station device and a server that sets a timing of a synchronization signal for the base station device. A management server (3) provides notification of a transmission order of the synchronization signal to each of a plurality of base station devices (1). The each of the plurality of base station devices (1) immediately transmits the synchronization signal to a terminal device (2) based on a timing of an already-operating clock in a case of receiving notification indicating the first in transmission order from the management server (3), and, in a case of receiving notification indicating another transmission order than the first from the management server (3), receives a synchronization signal transmitted at the earliest timing from another base station device (1), to thereby transmit the synchronization signal to the terminal device (2) at a timing calculated based on a reception timing of the received synchronization signal and the transmission order received by an own device.
摘要:
A distribution data presence/absence information generation section generates distribution data presence/absence information indicating whether or not data is included in a frame. A synchronization information generation section generates synchronization information including the distribution data presence/absence information.
摘要:
A frame generation device has a frame generation section that generates a frame including synchronization information for achieving synchronization with a reception device from among a group including one or more reception devices each of which receives information within the frame, address information indicating an address within the frame for transmitting data, and data transmitted to the reception device included in the group. A group-basis distribution data presence/absence information generation section generates group-basis distribution data presence/absence information indicating whether or not the transmitted data is included in the frame. A synchronization information generation section generates synchronization information including the group-basis distribution data presence/absence information. The frame generation section generates the frame such that the group-basis distribution data presence/absence information is allocated prior to the address information. A central processing unit controls operation of the frame generation section, group-basis distribution data presence/absence information generation section, and synchronization information generation section.
摘要:
A group-basis distribution data presence/absence information generation section generates distribution data presence/absence information indicating whether or not data to be transmitted to a reception device included in a group that includes one or a plurality of reception devices is included in a frame. Further, a synchronization signal generation section generates synchronization information including the distribution data presence/absence information.
摘要:
A management server (2) communicates with relay units (3) through a LAN, the relay units (3) are capable of communicating with wireless terminals (5), which are divided into groups, by short-range wireless communication, and the management server (2) transmits and receives information with the wireless terminals (5) through the relay units (3). A basic frame contains a synchronization signal for synchronizing the wireless terminals (5) to the relay units (3) and a data group for the respective wireless terminals (5). The wireless terminal (5) receives self-addressed data while synchronizing with the relay unit (3) by means of the synchronization signal. The management server (2) has a fast mode in which a duration of the basic frame is generated in T1 seconds and a normal mode in which the duration is generated in T2 seconds. In this case, T1
摘要:
A scanning apparatus includes a scanner, a driver for reciprocating the scanner, and a control mechanism which controls the drive force of said driver so as to drive the scanner with a low acceleration at the initial stage of drive of the scanner.
摘要:
Apparatus for printing reproduction copies of an original image or recording such original image on an image recording member, is provided with a device for determining whether the image to be recorded conforms in size to the image recording member. The apparatus provides an indication to the operator of the apparatus when non-conformance is detected.
摘要:
An image processing system includes a plurality of memories for storing (1) a procedure control program and (2) a task program for automatic closed loop control. Each program is grouped into a plurality of groups of programs in response to one of a plurality of selectable stages corresponding to priority required to execute an image processing. Each group of programs is task scheduled and one of the stages is selected. The task schedule is controlled in response to the selected stage and the group of programs is supervised corresponding to the selected stage.