发明申请
US20080144506A1 CONTROL APPARATUS, CONTROL METHOD, COMMUNICATION SYSTEM COMPRISING CONTROL APPARATUS AND ONE OR MORE TERMINALS
审中-公开
控制装置,控制方法,包含控制装置和一个或多个端子的通信系统
- 专利标题: CONTROL APPARATUS, CONTROL METHOD, COMMUNICATION SYSTEM COMPRISING CONTROL APPARATUS AND ONE OR MORE TERMINALS
- 专利标题(中): 控制装置,控制方法,包含控制装置和一个或多个端子的通信系统
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申请号: US11952762申请日: 2007-12-07
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公开(公告)号: US20080144506A1公开(公告)日: 2008-06-19
- 发明人: Tetsuo Kanda
- 申请人: Tetsuo Kanda
- 申请人地址: JP Tokyo
- 专利权人: CANON KABUSHIKI KAISHA
- 当前专利权人: CANON KABUSHIKI KAISHA
- 当前专利权人地址: JP Tokyo
- 优先权: JP2006-341129 20061219
- 主分类号: G08C15/00
- IPC分类号: G08C15/00
摘要:
In a radio communication system including terminals that access a control apparatus by a random access method, the number of collisions between data transmitted from the terminals is reduced. A control method for the control apparatus capable of communicating with at least one terminal located within a communicable range includes transmitting information designating a communication period in which the terminal transmits data to the control apparatus, changing a transmission range over which the information is transmitted, and transmitting, after transmitting first information designating a first communication period over a first transmission range, second information designating a second communication period which differs from the first communication period over a changed second transmission range.
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