公开(公告)号：US11974078B2

公开(公告)日：2024-04-30

申请号：US18173777

申请日：2023-02-23

Applicant: SoftBank Corp.

Inventor： Takashi Tsutsui ,  Kazuhiko Goukon

IPC: H04N9/31 ,  G03B13/36 ,  G06F11/08 ,  H04N23/69

CPC classification number: H04N9/3185 ,  G03B13/36 ,  G06F11/08 ,  H04N9/317 ,  H04N9/3194 ,  H04N23/69

Abstract: In the present application, for a detailed protocol for realizing supplemental downlink communication in the filed patent, particularly, a system is proposed which performs training processing at high speed by using two-dimensionally developed information. In the present application, compared to the filed patent, a two-dimensional pilot symbol can be used in a display unit, further, introduction of a segment for communication band control using a two-dimensional pilot symbol, training processing using a two-dimensional test pattern for establishing a communication path, and a configuration of a communication frame are clarified, and MIMO processing of communication using video information by a plurality of segments is realized to improve a throughput of an existing portable phone.