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    COMMUNICATION SYSTEM
    81.
    发明专利
    COMMUNICATION SYSTEM 未知

    公开(公告)号：CA2652488A1

    公开(公告)日：1994-09-26

    申请号：CA2652488

    申请日：1994-03-25

    Applicant: PANASONIC CORP

    Inventor： OSHIMA MITSUAKI

    IPC: H04B1/68 ,  H03M13/27 ,  H04L1/00 ,  H04L1/22 ,  H04L5/00 ,  H04L27/00 ,  H04L27/02 ,  H04L27/04 ,  H04L27/18 ,  H04L27/26 ,  H04L27/34 ,  H04L27/38 ,  H04N5/44 ,  H04N7/015 ,  H04N7/24 ,  H04N7/26 ,  H04N19/89

    Abstract: In the transmitter side, data are divided into two or more groups, according to importance. In a three groups system, for example, the data streams are then mapped onto a multiresolution constellation (QAM or modified PSK) in the following way. The most important data determine the quadrant, the next most important determine which of four subsets is used in the quadrant, and the least important determine which point is used within that subset. This mapping system allows receivers of differing capabilities to detect as much data as they are able, or a single receiver to detect as much data as the channel quality allows. For example, a QPSK receiver could detect the most important data, a modified 16QAM receiver could detect the most important and second most important data, while a modified 64QAM receiver could receive all the data. Furthermore, in an OFDM system, multiresolution transmission is provided by using long guard times and/or wider channel spacing (equivalently, longer symbols) for the more important data. A system using n-level VSB is also described.

    COMMUNICATION SYSTEM
    82.
    发明专利
    COMMUNICATION SYSTEM 未知

    公开(公告)号：CA2652487A1

    公开(公告)日：1994-09-26

    申请号：CA2652487

    申请日：1994-03-25

    Applicant: PANASONIC CORP

    Inventor： OSHIMA MITSUAKI

    IPC: H04B1/68 ,  H03M13/25 ,  H04L1/00 ,  H04L1/22 ,  H04L5/00 ,  H04L27/00 ,  H04L27/02 ,  H04L27/04 ,  H04L27/18 ,  H04L27/26 ,  H04L27/34 ,  H04L27/38 ,  H04N5/44 ,  H04N7/015 ,  H04N7/24 ,  H04N7/26 ,  H04N7/50 ,  H04N19/89

    Abstract: In the transmitter side, data are divided into two or more groups, according to importance. In a three groups system, for example, the data streams are then mapped onto a multiresolution constellation (QAM or modified PSK) in the following way. The most important data determine the quadrant, the next most important determine which of four subsets is used in the quadrant, and the least important determine which point is used within that subset. This mapping system allows receivers of differing capabilities to detect as much data as they are able, or a single receiver to detect as much data as the channel quality allows. For example, a QPSK receiver could detect the most important data, a modified 16QAM receiver could detect the most important and second most important data, while a modified 64QAM receiver could receive all the data. Furthermore, in an OFDM system, multiresolution transmission is provided by using long guard times and/or wider channel spacing (equivalently, longer symbols) for the more important data. A system using n-level VSB is also described.

    情報通信方法および情報通信装置
    87.
    发明专利
    情報通信方法および情報通信装置 有权
    信息通信方法和信息通信装置

    公开(公告)号：JP2014220790A

    公开(公告)日：2014-11-20

    申请号：JP2014049448

    申请日：2014-03-12

    Applicant: パナソニック株式会社 ,  Panasonic Corp

    Inventor： YAMADA KAZUNORI ,  IIDA KEITA ,  NAKANISHI KOJI ,  AOYAMA HIDEKI ,  MATSUSHITA YOSUKE ,  MUKAI TSUTOMU ,  OSHIMA MITSUAKI ,  FUCHIGAMI IKUO ,  HATA HIDEHIKO

    IPC: H04B10/116 ,  G03B7/093 ,  H04N5/232 ,  H04N5/235

    CPC classification number: H04N3/1506 ,  H04B10/11 ,  H04B10/1143 ,  H04B10/116 ,  H04B10/541 ,  H04L12/2803 ,  H04L2012/2841 ,  H04N5/232 ,  H04N5/2352 ,  H04N5/2353 ,  H04N5/243 ,  H04W4/001

    Abstract: 【課題】多様な機器で通信を可能とする情報通信方法を提供する。【解決手段】情報通信方法は、第1の画像を取得するステップSA21と、第1の画像から被写体の範囲を検出するステップSA22と、被写体の範囲を撮像する所定の露光ラインを決定するステップSA23と、所定の露光ラインを用いて露光時間を設定するステップSA24と、所定の露光ラインを用いて被写体を撮像することによって、輝線を含む第2の画像を取得するステップSA25と、第2の画像に含まれる輝線のパターンによって特定されるデータを復調するステップSA26とを含み、上述の露光時間は、露光時間が自動設定される場合に、前記被写体が撮像されている範囲において設定される露光時間である。【選択図】図331C

    Abstract translation: 要解决的问题：提供能够使用各种装置进行通信的信息通信方法。解决方案：信息通信方法包括：步骤SA21，以获得第一图像; 步骤SA22，用于检测来自第一图像的对象的范围; 步骤SA23，以确定用于拍摄对象范围内的图像的预定曝光线; 步骤SA24，通过使用预定的曝光线来设定曝光时间; 步骤SA25，通过使用所述预定曝光线来拍摄所述物体的图像，以获得包括亮线的第二图像; 以及步骤SA26，对由第二图像中包括的亮线的图案识别的数据进行解调。 曝光时间设定为自动模式时，曝光时间设定在拍摄图像的范围内。

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