公开(公告)号：EP2768151A1

公开(公告)日：2014-08-20

申请号：EP12839922.7

申请日：2012-10-03

申请人： Panasonic Corporation

发明人： SUENAGA, Hiroshi ,  MASUDA, Kohei ,  TANAKA, Hiroshi ,  IKUSHIMA, Tsuyoshi ,  NAKAYAMA, Takeshi

IPC分类号： H04B1/59 ,  G06K17/00 ,  G06K19/07

CPC分类号： H04B5/0043 ,  G06K7/086 ,  G06K7/10138 ,  G06K7/10297 ,  G06K19/07732 ,  H04L1/0046 ,  H04L1/0072 ,  H04L1/244 ,  H04L25/4908

摘要： A comparator circuit (28) compares a test pattern generated by a test pattern generator circuit (27), with a test pattern transmitted to a memory card (2) and returned from the memory card (2). A control circuit (21) determines a bandwidth corresponding to frequency components correctly transmitted between a host apparatus (1) and the memory card (2), based on the returned test pattern, and selects an encoding method requiring a maximum available bandwidth. The control circuit (21) generates a notification message indicating the selected encoding method, and encodes the notification message using the selected encoding method, and transmit the encoded notification message to the memory card (2). The control circuit (21) establishes communication between the host apparatus (1) and the memory card (2), when receiving a response message including an acknowledgement to the notification message, from the memory card (2).

摘要翻译： 比较器电路（28）将由测试图案发生器电路（27）生成的测试图案与发送到存储卡（2）并从存储卡（2）返回的测试图案进行比较。 控制电路（21）基于返回的测试模式来确定与主机设备（1）和存储卡（2）之间正确传输的频率分量相对应的带宽，并选择需要最大可用带宽的编码方法。 控制电路（21）产生指示所选编码方法的通知消息，并使用所选择的编码方法对通知消息进行编码，并将编码的通知消息发送到存储卡（2）。 当从存储卡（2）接收到包含对通知消息的确认的响应消息时，控制电路（21）建立主机设备（1）和存储卡（2）之间的通信。