COMMUNICATION SYSTEM, COMMUNICATION DEVICE, AND COMMUNICATION METHOD
    21.
    发明申请
    COMMUNICATION SYSTEM, COMMUNICATION DEVICE, AND COMMUNICATION METHOD 有权
    通信系统,通信设备和通信方法

    公开(公告)号:US20100202329A1

    公开(公告)日:2010-08-12

    申请号:US12676433

    申请日:2009-07-21

    IPC分类号: H04L5/16

    CPC分类号: H04L5/14 H04L5/16

    摘要: In a communication system for performing communication while switching between full-duplex communication and half-duplex communication, a slave 200, which receives command packet signals requesting to write or read data from the master 100, houses information, in a response packet signal, that specifies half-duplex communication in response to one of the received packet signals, and transmits the response packet signal to the master, when the number of the received command packet signals has reached the maximum number of the command packet signals storable in a command signal queue 252.

    摘要翻译: 在用于在全双工通信和半双工通信之间切换时执行通信的通信系统中,接收请求从主设备100写入或读取数据的命令分组信号的从机200在响应分组信号中容纳该信息 指定响应于所接收的分组信号之一的半双工通信,并且当接收到的命令分组信号的数量已达到可存储在命令信号队列中的命令分组信号的最大数目时,将响应分组信号发送给主机 252。

    SYSTEM LSI AND A CROSS-BUS SWITCH APPARATUS ACHIEVED IN A PLURALITY OF CIRCUITS IN WHICH TWO OR MORE PAIRS OF A SOURCE APPARATUS AND A DESTINATION APPARATUS ARE CONNECTED SIMULTANEOUSLY AND BUSES ARE WIRED WITHOUT CONCENTRATION
    25.
    发明授权
    SYSTEM LSI AND A CROSS-BUS SWITCH APPARATUS ACHIEVED IN A PLURALITY OF CIRCUITS IN WHICH TWO OR MORE PAIRS OF A SOURCE APPARATUS AND A DESTINATION APPARATUS ARE CONNECTED SIMULTANEOUSLY AND BUSES ARE WIRED WITHOUT CONCENTRATION 有权
    在大量电路中实现的系统LSI和一个交叉总线开关装置,其中两个或更多的源设备和目的地设备的连接同时连接并且业务在没有集中的情况下被接线

    公开(公告)号:US06842104B1

    公开(公告)日:2005-01-11

    申请号:US09526154

    申请日:2000-03-15

    IPC分类号: G06F13/00 G06F13/40 H03K17/00

    CPC分类号: G06F13/4022 G06F13/4031

    摘要: A cross-bus switch apparatus which establishes simultaneously two or more pairs of connections between (i) a source bus arbitrarily selected from a plurality of source buses connected to one or more source apparatuses and (ii) a destination bus arbitrarily selected from a plurality of destination buses connected to one or more destination apparatuses. The cross-bus switch apparatus includes: a plurality of cross-bus switch units. The plurality of source buses are grouped into a plurality of source bus groups which are each connected to one of the plurality of cross-bus switch units. The plurality of destination buses are grouped into a plurality of destination bus groups which are each connected to one of the plurality of cross-bus switch units. Each cross-bus switch unit is connected to either (i) a source bus group or a destination bus group, or (ii) a source bus group and a destination bus group.

    摘要翻译: 一种交叉总线开关装置,其在(i)从连接到一个或多个源装置的多个源总线任意选择的源总线和(ii)从多个源装置中任意选择的目的地总线之间同时建立两对或更多对连接 连接到一个或多个目的地设备的目的地总线。 交叉总线开关装置包括:多个交叉总线开关单元。 多个源总线被分组成多个源总线组,每个源总线组各自连接到多个交叉总线开关单元中的一个。 多个目的地总线被分组为多个目的地总线组,其各自连接到多个交叉总线开关单元中的一个。 每个交叉总线开关单元连接到(i)源总线组或目的地总线组,或者(ii)源总线组和目的地总线组。

    DMA CONTROL DEVICE AND DATA TRANSFER METHOD
    27.
    发明申请
    DMA CONTROL DEVICE AND DATA TRANSFER METHOD 审中-公开
    DMA控制设备和数据传输方法

    公开(公告)号:US20110196994A1

    公开(公告)日:2011-08-11

    申请号:US12675460

    申请日:2008-08-12

    IPC分类号: G06F13/28

    CPC分类号: G06F13/28 G06F21/85

    摘要: A DMA control device and a data transfer method, which make it possible to use a DMA channel independent of an operation mode of a processor and realize the protection of DMA control parameters during DMA operation (during a data transfer), while reducing the number of shift of an operating mode of the processor as small as possible, are provided. In requesting a DMA start by locking an access to a ch-0 DMA control register 114 in a secure mode, a CPU 101 instructs an unlock set register 118 to release an access lock when the transfer is completed. Then, when a parameter controlling circuit 119 receives a notification of transfer completion from a ch-0 state managing circuit 116, such parameter controlling circuit instructs a lock set register 115 to release the lock in accordance with the setting of the unlock set register 118.

    摘要翻译: 一种DMA控制装置和数据传输方法,其可以独立于处理器的操作模式使用DMA通道,并且在DMA操作期间(在数据传输期间)实现对DMA控制参数的保护,同时减少 提供了尽可能小的处理器的操作模式的移动。 在通过在安全模式下锁定对ch-0 DMA控制寄存器114的访问来请求DMA开始时,CPU 101指示解锁设置寄存器118在传送完成时释放访问锁定。 然后,当参数控制电路119从ch-0状态管理电路116接收到传送完成的通知时,该参数控制电路根据解锁设定寄存器118的设定指示锁定设定寄存器115释放锁定。

    DATA COMMUNICATION SYSTEM, COMMUNICATION DEVICE, AND COMMUNICATION METHOD
    28.
    发明申请
    DATA COMMUNICATION SYSTEM, COMMUNICATION DEVICE, AND COMMUNICATION METHOD 有权
    数据通信系统,通信设备和通信方法

    公开(公告)号:US20110103224A1

    公开(公告)日:2011-05-05

    申请号:US12674045

    申请日:2009-06-11

    IPC分类号: H04L5/14 H04L12/26

    摘要: A data communication system for starting transmission and reception of target data for processing upon recognition that switching between communication modes is completed. The data communication system includes a master communication device and a slave communication device that continuously perform, at a time of switching from half-duplex communication to full-duplex communication, (i) a handshake using a directional control code indicating the switching and a preamble code indicating completion of the switching and (ii) a handshake using the preamble code and an acknowledge code indicating receipt of the preamble code, whereby each of the devices recognizes that the switching between communication modes by the opposite device is completed and starts transmission and reception of the target data.

    摘要翻译: 一种数据通信系统,用于在识别出完成通信模式之间的切换的情况下开始用于处理的目标数据的发送和接收。 数据通信系统包括在从半双工通信切换到全双工通信时连续执行主通信设备和从通信设备,(i)使用指示切换的方向控制代码的握手和前导码 指示切换完成的代码和(ii)使用前导码的握手和指示接收前导码的确认代码,由此每个设备识别出相对设备的通信模式之间的切换完成并开始发送和接收 的目标数据。

    Encryption device and method
    29.
    发明授权
    Encryption device and method 有权
    加密设备和方法

    公开(公告)号:US07640436B2

    公开(公告)日:2009-12-29

    申请号:US11838792

    申请日:2007-08-14

    IPC分类号: G06F11/30 G06F7/04

    CPC分类号: H04L9/0894 H04L2209/60

    摘要: A device and method for encrypting content in an encryption device including a content-key storage section is disclosed. The method includes generating a content-key used for encrypting content based on random numbers and storing the generated content-key in the content-key storage section, encrypting the content-key used for encrypting the content so as to obtain an encrypted content-key and outputting the encrypted content-key to outside of the encryption device, determining whether or not a value of the content-key storage section in its initial state and a current value of the content-key storage section are different, and when it is determined that the value of the content-key storage section in its initial state and the current value of the content-key storage section are different, encrypting the content using the current value of the content-key storage section as a content-key so as to obtain a second output data and output the second output data to outside of the encryption device, wherein, for the determination step, a register stores a value of the content-key storage section at the time that said register receives a Power On Reset (POR) signal, and wherein the POR signal is a signal which pulses only once immediately after power-on or immediately after reset, so that the content-key storage section is in an initial state immediately after a corresponding power-on or reset of the encryption device.

    摘要翻译: 公开了一种用于加密包括内容密钥存储部分的加密装置中的内容的装置和方法。 该方法包括:生成用于基于随机数加密内容的内容密钥,并将生成的内容密钥存储在内容密钥存储部分中,对用于加密内容的内容密钥进行加密,以获得加密的内容密钥 并将加密的内容密钥输出到加密装置的外部,确定内容密钥存储部分的初始状态的值和内容密钥存储部分的当前值是否不同,并且当确定 内容密钥存储部分的初始状态的值和内容密钥存储部分的当前值不同,使用内容密钥存储部分的当前值作为内容密钥对内容进行加密,以便 获取第二输出数据并将第二输出数据输出到加密装置的外部,其中,对于确定步骤,寄存器存储内容密钥存储部分的值, 所述寄存器接收上电复位(POR)信号,并且其中POR信号是在上电或紧接复位后立即仅脉冲的信号,使得内容密钥存储部分在初始状态之后处于初始状态 相应的加密设备的加电或复位。

    Copyright protection system, encryption device, decryption device and recording medium
    30.
    发明授权
    Copyright protection system, encryption device, decryption device and recording medium 有权
    版权保护系统,加密装置,解密装置和记录介质

    公开(公告)号:US07617402B2

    公开(公告)日:2009-11-10

    申请号:US09828559

    申请日:2001-04-06

    IPC分类号: G06F11/30 G06F12/14 H04L9/32

    CPC分类号: G11B20/0021 G11B20/00086

    摘要: A copyright protection system comprises an encryption device and a decryption device. Cryptographic communication is performed between the encryption device and the decryption device using a contents key. The encryption device includes a contents storage section for storing contents, a first contents key generation section for generating the contents key based on a second decryption limitation obtained by updating a first decryption limitation, and a first encryption section for encrypting the contents using the contents key and outputting the encrypted contents. The decryption device includes a second contents key generation section for generating the contents key from the second decryption limitation, and a first decryption section for decrypting the encrypted contents using the contents key generated by the second contents key generation section.

    摘要翻译: 版权保护系统包括加密装置和解密装置。 使用内容密钥在加密装置和解密装置之间执行加密通信。 加密装置包括用于存储内容的内容存储部分,用于基于通过更新第一解密限制获得的第二解密限制来生成内容密钥的第一内容密钥生成部分和用于使用内容密钥加密内容的第一加密部分 并输出加密的内容。 解密装置包括:第二内容密钥生成部,用于从第二解密限制生成内容密钥;第一解密部,使用由第二内容密钥生成部生成的内容密钥对加密内容进行解密。