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    • 2. 发明授权
    • Encoding method and system for reducing inter-symbol interference effects in transmission over a serial link
    • US07359437B2
    • 2008-04-15
    • US10036234
    • 2001-12-24
    • Seung Ho HwangJano BanksPaul Daniel WolfEric LeeBaegin SungAlbert M. Scalise
    • Seung Ho HwangJano BanksPaul Daniel WolfEric LeeBaegin SungAlbert M. Scalise
    • H04B1/66
    • H04L1/0057G09G5/006H04L1/203H04L1/206H04L25/49H04N19/89
    • A communication system including a transmitter, a receiver, and a serial link, in which encoded data (e.g., encoded video data and encoded auxiliary data) are transmitted from the transmitter to the receiver. The serial link can but need not be a TMDS or TMDS-like link. In typical embodiments, alternating bursts of encoded video data and encoded auxiliary data are transmitted over each of one or more channels of the link. Other aspects of the invention are transmitters for use in encoding data for transmission over a serial link, and methods for sending encoded data over a serial link. In accordance with the invention, the data to be transmitted are encoded using a subset (sometimes referred to as a selected set of code words) of a full set of code words. The selected set of code words is selected such that each stream of encoded data (comprising only such code words) transmitted over a serial link has a bit pattern that is less susceptible to inter-symbol interference (“ISI”) during transmission than is the bit pattern determined by a conventionally encoded version of the same data (comprising not only the selected set of code words but also other members of the full set). In general, the best choice for the selected set of code words selected from a full set of binary code words depends on the particular coding implemented by the full set. Typically, the selected set of code words includes words whose serial patterns (during transmission) have fewer contiguous zeros and ones (and thus are less susceptible to ISI during transmission) than do those code words in the full set that are not selected. In preferred embodiments in which the bits of the selected set of code words are transmitted over a serial link as sequences of rising and falling voltage transitions, the bit pattern of each transmitted stream of the selected set of code words implements DC balancing to limit the voltage drift over time.
    • 5. 发明授权
    • IO adapter for system and IO buses having different protocols and speeds
    • 适用于具有不同协议和速度的系统和IO总线的IO适配器
    • US5191653A
    • 1993-03-02
    • US635923
    • 1990-12-28
    • John D. (J.) BanksKenneth M. KarakotsiosAlbert M. Scalise
    • John D. (J.) BanksKenneth M. KarakotsiosAlbert M. Scalise
    • G06F13/40
    • G06F13/4027
    • A bi-directional bus adapter coupling a system bus, which operates at a first speed using a first protocol, and an IO bus, which operates at a second speed using a second protocol, and allowing data transfering devices on either bus to transfer data to or from devices on the other bus. The bus adapter includes a cycle generation mechanism which is responsive to data cycles from one of the buses in order to generate bus cycles needed to complete a data transfer to a device on the other bus. The bus adapter includes a synchronization mechanism for converting the plurality of data cycles generated by the cycle generation mechanism from either the first speed to the second speed or vice versa. The bus adapter includes bi-directional data path mechanism for routing data between the system and IO buses according to said protocols, such that the data path directs bytes of data to specific data lines to perform byte steering and dynamic bus sizing on the data from the system bus to the IO bus. The bus adapter also includes a bi-directional address transceiver mechanism for routing addresses between said system and said IO buses.
    • 耦合使用第一协议以第一速度操作的系统总线的双向总线适配器和使用第二协议以第二速度操作的IO总线,并允许任一总线上的数据传输设备将数据传输到 或从另一条总线上的设备。 总线适配器包括循环生成机构,其响应于来自总线之一的数据周期,以便产生完成对另一总线上的设备的数据传输所需的总线周期。 总线适配器包括一个同步机构,用于将由循环发生机制产生的多个数据循环从第一速度转换到第二速度,反之亦然。 总线适配器包括用于根据所述协议在系统和IO总线之间路由数据的双向数据路径机制,使得数据路径将数据字节指向特定的数据线,以对数据进行字节转向和动态总线大小调整 系统总线到IO总线。 总线适配器还包括用于在所述系统和所述IO总线之间路由地址的双向地址收发机机构。
    • 6. 发明授权
    • Methods and apparatus for data bus arbitration
    • 数据总线仲裁的方法和装置
    • US06393505B1
    • 2002-05-21
    • US09227502
    • 1999-01-06
    • Albert M. ScaliseJano D. Banks
    • Albert M. ScaliseJano D. Banks
    • G06F1300
    • G06F13/161G06F13/364
    • A data bus arbitration system is disclosed including a bus status monitor which is coupled to a data bus and generates a bus status signal for use by an arbiter. The arbiter is coupled to a number of requesters, each of which belongs to a distinct class of requesters. The arbiter arbitrates between multiple requests using heuristics dependent upon the classes of the requesters. The nature of one class of requestors is that the requestors have real time requirements which must be met in order to maintain data integrity within the system. The nature of a second class of requestors is such that the requestors have semi-real time requirements which must be met in order to maintain data integrity within the system. The nature of the system is such that the available bandwidth must be utilized very efficiently in order to maintain data integrity within the system. The arbiter system disclosed grants access to the requesters using the heuristics disclosed while maintaining an efficiency of at least 80% of the total bandwidth for all requestors.
    • 公开了一种数据总线仲裁系统,其包括耦合到数据总线的总线状态监视器,并产生总线状态信号供仲裁器使用。 仲裁器耦合到一些请求者,每个请求者属于不同类别的请求者。 仲裁者根据请求者的类别使用启发式方式在多个请求之间进行仲裁。 一类请求者的性质​​是请求者具有必须满足的实时要求,以便保持系统内的数据完整性。 第二类请求者的性质​​使得请求者具有必须满足的半实时要求,以便保持系统内的数据完整性。 系统的性质使得必须非常有效地利用可用的带宽,以便保持系统内的数据完整性。 所公开的仲裁系统使用所公开的启发式方式来访问请求者,同时保持所有请求者的总带宽的至少80%的效率。
    • 7. 发明授权
    • Method of arbitration for buses operating at different speeds
    • 以不同速度运行的公共汽车的仲裁方法
    • US5253348A
    • 1993-10-12
    • US951937
    • 1992-09-25
    • Albert M. Scalise
    • Albert M. Scalise
    • G06F13/366G06F13/40G06F13/364
    • G06F13/366G06F13/4031
    • In a bus adapter coupling a system bus and an I/O bus which operate at different speeds and contain a plurality of devices, a method by which an arbiter in the bus adapter prevents contention for ownership of both buses by a device on either of the buses. The method includes the steps of sampling each of the devices requesting ownership of said buses and asserting a bus grant to one of the devices on one of the buses based on its assigned priority number. The method also includes the step of waiting for the device granted the bus to send an acknowledge signal to display ownership of the buses and for each of the devices not on the bus containing the device granted the bus to see the acknowledge signal before resampling and reasserting a new bus grant to another of the requesting devices.
    • 在总线适配器中,耦合系统总线和以不同速度操作并包含多个设备的I / O总线,总线适配器中的仲裁器通过该总线适配器阻止两个总线的所有权的争用, 巴士 该方法包括以下步骤:对请求所有总线的所有设备的每个设备进行采样,并且基于其分配的优先级号,向其中一条总线上的设备之一断言总线授权。 该方法还包括等待授予总线的设备发送确认信号以显示总线的所有权的步骤,并且对于不包括授予总线的设备的总线上的每个设备,在重新采样和重新取样之前看到确认信号 另一个请求设备的新总线授权。