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    • 3. 发明授权
    • Data transmission device
    • 数据传输设备
    • US07350015B2
    • 2008-03-25
    • US10285046
    • 2002-10-31
    • Jens BarrenscheenGunther FenzlPeter Rohm
    • Jens BarrenscheenGunther FenzlPeter Rohm
    • G06F13/36
    • G06F13/28G06F13/4027
    • A data transmission device forwards data that have been received from a first device, intended for a second device, to the second device. The data transmission device is distinguished in that it has connections for connecting at least two data buses and can output data received by a first data bus either onto the same data bus or onto another data bus immediately or later. Therefore, the data transmission device can be used selectively, alternately or simultaneously as a DMA controller and a bus bridge. It also has additional functions unrelated to DMA controllers and bus bridges.
    • 数据传输设备将已经从第一设备接收的用于第二设备的数据转发到第二设备。 数据传输设备的区别在于它具有用于连接至少两个数据总线的连接,并且可以立即或稍后地将由第一数据总线接收的数据输出到同一数据总线上或另一数据总线上。 因此,数据传输设备可以选择性地,交替地或同时地用作DMA控制器和总线桥。 它还具有与DMA控制器和总线桥接无关的附加功能。
    • 8. 发明授权
    • Buffer memory configuration having a memory between a USB and a CPU
    • 具有在USB和CPU之间的存储器的缓冲存储器配置
    • US06421770B1
    • 2002-07-16
    • US09120160
    • 1998-07-21
    • Martin HuchJens BarrenscheenGunther Fenzl
    • Martin HuchJens BarrenscheenGunther Fenzl
    • G06F1202
    • G06F5/16G06F5/10
    • The buffer memory configuration has a memory disposed between a USB and a central processing unit. The memory can be mapped onto an address space which is exactly half as large as the memory itself. The first half of the memory defines a first memory page and the second half of the memory defines a second memory page, and each address in the address space is assigned exactly one memory location on each of the memory pages. A memory management unit generates a first significant bit which assigns in each case the two memory locations having the same address to the address space of the first memory page and to the address space of the second memory page. The buffer memory architecture enables the memory independently to manage the data to be transferred. The two memory pages serve to decouple the central processing unit CPU and the bus. Both memory pages are virtually visible to the user but only one of the memory pages can ever be addressed for data transfer. Consequently, overlapping of the writing cycles is avoided by arranging the transmitted data and the data to be read out in separate areas of the memory.
    • 缓冲存储器配置具有设置在USB和中央处理单元之间的存储器。 存储器可以被映射到正好与存储器本身一半一样大的地址空间。 存储器的前半部分定义第一存储器页面,并且存储器的第二半部分定义第二存储器页面,并且每个存储器页面上分配地址空间中的每个地址恰好一个存储器位置。 存储器管理单元产生第一有效位,其在每种情况下将具有相同地址的两个存储器位置分配给第一存储器页的地址空间和第二存储器页的地址空间。 缓冲存储器架构使内存独立地管理要传输的数据。 两个存储器页面用于去耦中央处理单元CPU和总线。 两个内存页面对用户实际上是可见的,但只有一个内存页面可以被寻址用于数据传输。 因此,通过将发送的数据和要在存储器的不同区域中读出的数据进行布置来避免写入周期​​的重叠。
    • 9. 发明授权
    • Program-controlled unit
    • 程控单位
    • US07228264B2
    • 2007-06-05
    • US10116171
    • 2002-04-04
    • Jens BarrenscheenGunther Fenzl
    • Jens BarrenscheenGunther Fenzl
    • G06F9/455
    • G06F11/3648G06F11/261
    • A program-controlled unit includes a selection device which can determine whether the program-controlled unit is to be emulated by using a first emulation unit or by using a second emulation unit. As a result, it is possible to provide a mass production version of the program-controlled unit with an emulation unit having a reduced functional and/or performance scope. Therefore, an emulatable mass production version of the program-controlled unit can be made available which is only insignificantly more expensive, if at all, than a non-emulatable version.
    • 程序控制单元包括可以通过使用第一仿真单元或通过使用第二仿真单元来确定程序控制单元是否被仿真的选择装置。 结果,可以提供具有减少的功能和/或性能范围的仿真单元的程序控制单元的批量生产版本。 因此,可以提供程序控制单元的可生产的批量生产版本,而不是不可升级的版本,这个版本只是不重要的昂贵。
    • 10. 发明授权
    • Memory device and method for operating the memory device
    • 用于操作存储器件的存储器件和方法
    • US06912566B1
    • 2005-06-28
    • US09124288
    • 1998-07-28
    • Jens BarrenscheenGunther Fenzl
    • Jens BarrenscheenGunther Fenzl
    • H04L12/40G06F5/06G06F15/167
    • G06F5/065
    • The memory device, for the purpose of serial data transfer of binary data, is arranged between at least two subscribers of a data transmission system. The memory is divided into a multiplicity of memory objects, which are typically of the same size and some of which are organized to form FIFO structures. The FIFO structures are used to buffer the typically asynchronous access operations between the subscribers at different data transmission rates and with a certain data depth, and to thereby decouple them from one another. The data transfer is largely under data control and thus requires minimal computation complexity in a central processing unit. The memory objects of the memory can advantageously be operated flexibly and independently of one another, in four different operating modes.
    • 用于二进制数据的串行数据传输的存储器件被布置在数据传输系统的至少两个用户之间。 存储器被分成多个存储器对象,其通常具有相同的大小,并且其中一些被组织以形成FIFO结构。 FIFO结构用于以不同的数据传输速率和一定的数据深度来缓冲用户之间的异常访问操作,从而使它们彼此分离。 数据传输主要在数据控制之下,因此在中央处理单元中需要最小的计算复杂度。 在四种不同的操作模式中,存储器的存储器对象可以有利地彼此灵活地并且彼此独立地操作。