发明名称 Communication apparatus and communication method
摘要 A reception unit of a transmission apparatus receives reception status information indicating reception status of data by the reception apparatus, from a reception apparatus. Then, a rate control unit controls transmission rate of data to the reception apparatus, according to received reception status information. A transmission control unit controls transmission of the reception status information indicating reception status of data by the reception apparatus that is currently receiving data, according to the received reception status information.
申请公布号 US8811180(B2) 申请公布日期 2014.08.19
申请号 US201113018232 申请日期 2011.01.31
申请人 Canon Kabushiki Kaisha 发明人 Ozawa Takeshi
分类号 H04L12/26 主分类号 H04L12/26
代理机构 Canon U.S.A., Inc. IP Division 代理人 Canon U.S.A., Inc. IP Division
主权项 1. A communication apparatus that transmits data to a reception apparatus, the communication apparatus comprising: a reception unit configured to receive reception status information indicating reception status of data by the reception apparatus from the reception apparatus; and a transmission control unit configured to control transmission of the reception status information by the reception apparatus which is receiving data from the communication apparatus, according to the reception status information received by the reception unit, such that a first reception apparatus and a second reception apparatus of a plurality of reception apparatuses transmit the reception status information at a shorter interval while the first and second reception apparatuses are receiving data from the communication apparatus and the reception unit is receiving first reception status information from the first reception apparatus and is receiving second reception status information from the second reception apparatus in a case where a first reception status indicated by the first reception status information and a second reception status indicated by the second reception status information correspond to a higher error rate than a threshold error rate than in a case where the first and second reception statuses correspond to a lower error rate than the threshold error rate.
地址 Tokyo JP