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1. 发明授权

US06546018B1 Digital system having a peripheral bus structure with at least one store-and-forward segment 有权
标题翻译：数字系统具有具有至少一个存储和转发段的外围总线结构
公开(公告)号：US06546018B1
公开(公告)日：2003-04-08
申请号：US09309484
申请日：1999-05-10
申请人： John I. Garney , John S. Howard , Venkat Iyer
发明人： John I. Garney , John S. Howard , Venkat Iyer
IPC分类号： H04J1500
CPC分类号： G06F13/385
摘要： A digital system is provided with a bus controller to operate and control a peripheral bus, wherein the bus controller selectively operates at least a first portion of the peripheral bus in a store-and-forward manner. The bus controller facilitates communication with a first bus agent in this first portion by sending a number of request packets destined for the first bus agent to a first hub in the first portion, in an integrated multi-packet form, in bulk, and at a first communication speed. The first hub buffers the request packets, and then forwards the request packets to the first bus agent, on a packet-by-packet basis, and at a second communication speed. In one embodiment, the second communication speed is slower than the first communication speed. In one embodiment, the first hub also receives communications destined for a second bus agent of this first portion, from the bus controller at the first communication speed, and repeats the communications for the second bus agent without buffering, at also the first communication speed. In another embodiment, the peripheral bus further includes a second portion, including a second hub that receives communications destined for a third bus agent in this second portion, from the bus controller at the second communication speed, and repeats the communications for the third bus agent without buffering, at also the second communication speed.
摘要翻译：数字系统设置有总线控制器以操作和控制外围总线，其中总线控制器以存储和转发的方式选择性地操作外围总线的至少第一部分。总线控制器通过以大量方式以集成的多分组形式向第一部分中的第一集线器发送目的地为第一总线代理的多个请求分组，并且在第一通讯速度。第一集线器缓冲请求分组，然后以逐个分组的方式，以第二通信速度将请求分组转发到第一总线代理。在一个实施例中，第二通信速度比第一通信速度慢。在一个实施例中，第一集线器还以第一通信速度从总线控制器接收目的地为该第一部分的第二总线代理的通信，并且也以第一通信速度重复第二总线代理的通信而不进行缓冲。在另一个实施例中，外围总线还包括第二部分，包括第二集线器，第二集线器以第二通信速度从总线控制器接收发往第二部分中的第三总线代理的通信，并重复第三总线代理的通信没有缓冲，也是第二个通信速度。

2. 发明授权

US06389501B1 I/O peripheral device for use in a store-and-forward segment of a peripheral bus 有权
标题翻译：用于外围总线存储转发段的I / O外围设备
公开(公告)号：US06389501B1
公开(公告)日：2002-05-14
申请号：US09309087
申请日：1999-05-10
申请人： John I. Garney , John S. Howard , Venkat Iyer
发明人： John I. Garney , John S. Howard , Venkat Iyer
IPC分类号： G06F1312
CPC分类号： G06F13/4059
摘要： An I/O peripheral device is equipped with a first collection of circuitry to enable the I/O peripheral device to provide a store-and-forward manner of operation to a segment of a peripheral bus. The first collection of circuitry includes first buffering circuitry to buffer request packets destined for a first bus agent, received from a bus controller in an integrated multi-packet form, in bulk, and at a first communication speed. Furthermore, the first collection includes control circuitry to forward the request packets separately, in a packet-by-packet basis, to the first bus agent, in a second communication speed. In one embodiment, the second communication speed is slower than the first communication speed. The I/O peripheral device further includes second buffer circuitry to buffer response packets to a request from the first bus agent provided separately, and each at the slower second communication speed. The first control circuitry also facilitates forwarding of the buffered response packets to the bus controller in bulk at the faster first communication speed. In one embodiment, the I/O peripheral device further includes second control circuitry to repeat communications destined for a second bus agent, received from the bus controller at the first communication speed, for the second bus agent, at also the first communication speed. In one embodiment, the I/O peripheral device is a hub.
摘要翻译： I / O外围设备配备有电路的第一集合，以使得I / O外围设备能够向外围总线的段提供存储转发的操作方式。电路的第一集合包括第一缓冲电路，用于以批量和第一通信速度缓冲以集成多分组形式从总线控制器接收的去往第一总线代理的请求分组。此外，第一集合包括控制电路，其以第二通信速度逐个分组地将请求分组转发到第一总线代理。在一个实施例中，第二通信速度比第一通信速度慢。 I / O外围设备还包括第二缓冲器电路，用于将响应分组缓冲到来自分开提供的第一总线代理的请求，并且每个以较慢的第二通信速度缓冲。第一控制电路还有助于将缓冲的响应分组以更快的第一通信速度批量转发到总线控制器。在一个实施例中，I / O外围设备还包括第二控制电路，用于以第一通信速度，以第一通信速度从总线控制器接收第二总线代理的第二总线代理用于第二总线代理。在一个实施例中，I / O外围设备是集线器。

3. 发明授权

US06629186B1 Bus controller and associated device drivers for use to control a peripheral bus having at least one store-and-forward segment 失效
标题翻译：总线控制器和相关设备驱动器，用于控制具有至少一个存储转发段的外围总线
公开(公告)号：US06629186B1
公开(公告)日：2003-09-30
申请号：US09309088
申请日：1999-05-10
申请人： John I. Garney , John S. Howard , Venkat Iyer
发明人： John I. Garney , John S. Howard , Venkat Iyer
IPC分类号： G06F1312
CPC分类号： G06F13/102
摘要： A bus controller and its associated device drivers are provided to a digital system to operate and control a peripheral bus, including the selective operation of at least a first portion of the peripheral bus in a store-and-forward manner. The device drivers include a number of programming instructions. Upon programmed with the programming instructions, a digital system is enabled to operate the bus controller to facilitate communication with a first bus agent in this first portion. The programming instructions package a number of request packets destined for the first bus agent into a multi-packet package, schedule the multi-packet package to be transmitted in bulk, at a first communication speed, to a first hub in the first portion, for the first hub to buffer the request packets, and then forward the request packets to the first bus agent, on a packet-by-packet basis and at a second communication speed. In one embodiment, the second communication speed is slower than the first communication speed. In one embodiment, the programming instructions further schedule communications destined for a second bus agent of this first portion, for transmission to the first hub, at the first communication speed, for the first hub to repeat the communications for the second bus agent without buffering, at also the first communication speed.
摘要翻译：将总线控制器及其相关的设备驱动器提供给数字系统以操作和控制外围总线，包括以存储和转发的方式选择性地操作外围总线的至少第一部分。设备驱动程序包括一些编程指令。在使用编程指令编程时，数字系统能够操作总线控制器以便于在该第一部分中与第一总线代理的通信。编程指令将目的地为第一总线代理的多个请求分组封装成多分组包，将以多个第一通信速度批量发送的多分组分组调度到第一部分中的第一集线器，以便第一集线器缓冲请求分组，然后逐个分组地以第二通信速度将请求分组转发到第一总线代理。在一个实施例中，第二通信速度比第一通信速度慢。在一个实施例中，编程指令进一步调度目的地为该第一部分的第二总线代理的通信，用于以第一通信速度传输到第一集线器，以使第一集线器重复第二总线代理的通信而不进行缓冲，也是第一个通信速度。

4. 发明授权

US07007110B2 Nak throttling for USB host controllers 失效
公开(公告)号：US07007110B2
公开(公告)日：2006-02-28
申请号：US09823558
申请日：2001-03-30
申请人： John S. Howard , John I. Garney
发明人： John S. Howard , John I. Garney
IPC分类号： G06F13/14
CPC分类号： G06F13/385
摘要： A method and apparatus for traversing a schedule with a bus master, the schedule having a plurality of elements, each element having information pertaining to one of a plurality of endpoints; executing transactions on a bus in accordance with the information pertaining to the plurality of endpoints; counting flow control events issued by individual endpoints; and skipping elements in the traversal of the schedule, the elements being skipped corresponding to endpoints which have issued a threshold number of flow control events.

5. 发明授权

US06952429B2 Transaction scheduling for a bus system in a multiple speed environment 失效
标题翻译：在多速度环境中的总线系统的事务调度
公开(公告)号：US06952429B2
公开(公告)日：2005-10-04
申请号：US10613971
申请日：2003-07-03
申请人： John I. Garney , John S. Howard
发明人： John I. Garney , John S. Howard
IPC分类号： H04L12/417 , H04J3/24
CPC分类号： H04L12/4625 , H04L12/40013 , H04L12/4013 , H04L12/403 , H04L12/417
摘要： A method of and apparatus for communicating data using a hub. The method includes determining a first estimated unused capacity left in a first frame in which a second transaction is to be performed between a hub and an agent. The method then includes determining an amount of a first data that can fit into the estimated unused capacity and that is to be sent to the hub during a first transaction and then sent by the hub to the agent during the second transaction. The method also includes sending the first data to the hub during the first transaction.
摘要翻译：一种使用集线器传送数据的方法和装置。该方法包括确定在第一帧中剩下的第一估计未使用容量，其中将在轮毂和代理之间执行第二事务。该方法然后包括确定可以适应于估计的未使用容量的第一数据的量，并且将在第一事务期间发送到集线器，然后由集线器在第二事务期间发送到代理。该方法还包括在第一次交易期间将第一数据发送到集线器。

6. 发明授权

US06678761B2 Method and apparatus for budget development under universal serial bus protocol in a multiple speed transmission environment 有权
标题翻译：通用串行总线协议在多速传输环境下的预算开发方法和装置
公开(公告)号：US06678761B2
公开(公告)日：2004-01-13
申请号：US09823798
申请日：2001-03-30
申请人： John I. Garney , John S. Howard
发明人： John I. Garney , John S. Howard
IPC分类号： G06F300
CPC分类号： G06F13/4059 , G06F2213/0042
摘要： A system and method for serial bus budget development and maintenance. The present invention relates to a method for budgeting transactions under a Universal Serial Bus (USB) protocol, utilizing split transactions, such as USB 2.0. The present invention provides for budgeting transactions occurring across a high-speed to full/low-speed translation, accommodating the full/low speed transactions as well as high-speed splits and data overhead in accordance with USB protocol.
摘要翻译：一种用于串行总线预算开发和维护的系统和方法。本发明涉及一种利用诸如USB2.0之类的分割事务在通用串行总线（USB）协议下预算交易的方法。本发明提供了在高速到全/低速转换之间发生的预算交易，适应全/低速交易以及根据USB协议的高速分割和数据开销。

7. 发明申请

US20100169516A1 SPLIT TRANSACTION PROTOCOL FOR A BUS SYSTEM 有权
标题翻译：用于总线系统的分离交易协议
公开(公告)号：US20100169516A1
公开(公告)日：2010-07-01
申请号：US12719640
申请日：2010-03-08
申请人： John I. GARNEY , John S. Howard
发明人： John I. GARNEY , John S. Howard
IPC分类号： G06F13/14 , G06F3/00
CPC分类号： G06F13/42 , G06F3/14 , G06F13/1642 , G06F13/1673 , G06F13/405 , G06F13/426 , G06F2213/0054 , G06F2213/40 , G06F2213/4002 , H04L12/40058 , H04L12/40123 , H04N5/225
摘要： A method of and apparatus for communicating between a host and an agent. The method includes the step of performing a first transaction between a host controller and a hub. The hub is operable to perform a single transaction with an agent based on the first transaction. The method then includes the step of performing a second transaction between the host controller and the hub. The second transaction is based on the single transaction.
摘要翻译：用于在主机和代理之间进行通信的方法和装置。该方法包括执行主机控制器和集线器之间的第一事务的步骤。集线器可操作以基于第一事务与代理执行单个事务。该方法然后包括在主机控制器和集线器之间执行第二事务的步骤。第二个交易是基于单个交易。

8. 发明授权

US06792495B1 Transaction scheduling for a bus system 有权
标题翻译：总线系统的事务调度
公开(公告)号：US06792495B1
公开(公告)日：2004-09-14
申请号：US09361677
申请日：1999-07-27
申请人： John I. Garney , John S. Howard
发明人： John I. Garney , John S. Howard
IPC分类号： G06F1314
CPC分类号： H04L12/40058 , G06F13/4059 , H04L12/40123
摘要： A method of and apparatus for communicating data using a hub. The method includes the step of buffering a single transfer request received at a hub during a transaction between the hub and a host controller, where the single transfer request is to be performed between the hub and an agent to generate a result. The method then includes the step of determining whether a transfer inquiry received at the hub from the host controller corresponds to the result.
摘要翻译：一种使用集线器传送数据的方法和装置。该方法包括在集线器和主控制器之间的事务期间缓冲在集线器处接收的单个传输请求的步骤，其中将在集线器和代理之间执行单个传输请求以生成结果。该方法包括确定从主机控制器在集线器处接收到的传送查询是否对应于结果的步骤。

9. 发明授权

US06771664B1 Transaction scheduling for a bus system in a multiple speed environment 失效
公开(公告)号：US06771664B1
公开(公告)日：2004-08-03
申请号：US09473914
申请日：1999-12-28
申请人： John I. Garney , John S. Howard
发明人： John I. Garney , John S. Howard
IPC分类号： H04J324
CPC分类号： H04L12/4625 , H04L12/40013 , H04L12/4013 , H04L12/403 , H04L12/417
摘要： A method of and apparatus for communicating data using a hub. The method includes determining a first estimated unused capacity left in a first frame in which a second transaction is to be performed between a hub and an agent. The method then includes determining an amount of a first data that can fit into the estimated unused capacity and that is to be sent to the hub during a first transaction and then sent by the hub to the agent during the second transaction. The method also includes sending the first data to the hub during the first transaction.

10. 发明授权

US07675871B2 Split transaction protocol for a bus system 有权
标题翻译：一个总线系统的拆分事务协议
公开(公告)号：US07675871B2
公开(公告)日：2010-03-09
申请号：US10939365
申请日：2004-09-14
申请人： John I. Garney , John S. Howard
发明人： John I. Garney , John S. Howard
IPC分类号： H04L12/28
CPC分类号： G06F13/42 , G06F3/14 , G06F13/1642 , G06F13/1673 , G06F13/405 , G06F13/426 , G06F2213/0054 , G06F2213/40 , G06F2213/4002 , H04L12/40058 , H04L12/40123 , H04N5/225
摘要： A method of and apparatus for communicating between a host and an agent. The method includes the step of performing a first transaction between a host controller and a hub. The hub is operable to perform a single transaction with an agent based on the first transaction. The method then includes the step of performing a second transaction between the host controller and the hub. The second transaction is based on the single transaction.
摘要翻译：用于在主机和代理之间进行通信的方法和装置。该方法包括执行主机控制器和集线器之间的第一事务的步骤。集线器可操作以基于第一事务与代理执行单个事务。该方法然后包括在主机控制器和集线器之间执行第二事务的步骤。第二个交易是基于单个交易。

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