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1. 发明授权

US07099308B2 Router for use with a link that has a set of concurrent channels 有权
标题翻译：路由器用于具有一组并发通道的链路
公开(公告)号：US07099308B2
公开(公告)日：2006-08-29
申请号：US10457124
申请日：2003-06-09
申请人： Todd A. Merrill , Mark E. Schutte , Scott E. Hrastar , Roy A. Bowcutt
发明人： Todd A. Merrill , Mark E. Schutte , Scott E. Hrastar , Roy A. Bowcutt
IPC分类号： H04L12/56
CPC分类号： H04L29/12216 , H04H20/79 , H04H60/84 , H04L12/2801 , H04L12/2856 , H04L12/2863 , H04L12/2872 , H04L12/2874 , H04L12/5692 , H04L29/06 , H04L29/12207 , H04L29/12283 , H04L29/12801 , H04L29/12839 , H04L41/0213 , H04L41/0663 , H04L41/0677 , H04L61/20 , H04L61/2015 , H04L61/2061 , H04L61/6004 , H04L61/6022 , H04L63/08 , H04L69/40 , H04N7/17309 , H04N21/25816 , H04N21/42676 , H04N21/6118 , H04N21/6168
摘要： An asymmetrical network is disclosed for coupling customer-premises Internet hosts such as personal computers to the Internet. The head end of a CATV system has a high-bandwidth connection to the Internet. The CATV system supports a plurality of concurrent channels to which an RF modem is capable of tuning. The RE modem is capable of receiving information from the head end that specifies the channel to which the RF modem should tune. Once tuned to the specified channel, the RF modem is capable of utilizing the CATV system for carrying high-speed data traffic. The high-speed data traffic can support Internet access using the Internet Protocol (IP).
摘要翻译：公开了一种不对称网络，用于将诸如个人计算机的客户端互联网主机与因特网相连。 CATV系统的前端具有与因特网的高带宽连接。 CATV系统支持RF调制解调器能够进行调谐的多个并发信道。 RE调制解调器能够从头端接收指定RF调制解调器应调谐的信道的信息。一旦调谐到指定的通道，RF调制解调器就能利用CATV系统来承载高速数据流量。高速数据流量可以使用互联网协议（IP）支持Internet访问。

2. 发明授权

US06519224B2 Method of using routing protocols to reroute packets during a link failure 有权
标题翻译：在链路故障期间使用路由协议重新路由数据包的方法
公开(公告)号：US06519224B2
公开(公告)日：2003-02-11
申请号：US09903281
申请日：2001-07-11
申请人： Scott E. Hrastar , Todd A. Merrill , Roy A. Bowcutt
发明人： Scott E. Hrastar , Todd A. Merrill , Roy A. Bowcutt
IPC分类号： G01R3108
CPC分类号： H04L29/12216 , H04H20/79 , H04H60/84 , H04L12/2801 , H04L12/2856 , H04L12/2863 , H04L12/2872 , H04L12/2874 , H04L12/5692 , H04L29/06 , H04L29/12207 , H04L29/12283 , H04L29/12801 , H04L29/12839 , H04L41/0213 , H04L41/0663 , H04L41/0677 , H04L61/20 , H04L61/2015 , H04L61/2061 , H04L61/6004 , H04L61/6022 , H04L63/08 , H04L69/40 , H04N7/17309 , H04N21/25816 , H04N21/42676 , H04N21/6118 , H04N21/6168
摘要： The preferred embodiment of the present invention is a cable modem apparatus for reliably providing a personal computer access to the Internet through a cable television link and a public switched telephone network link. The invention includes: a cable television link failure detector connected to the cable television link; a message generator connected to the cable television link failure detector, where the message generator is configured to generate at least one message responsive to the cable television link failure detector; and a message transmitter connected to the message generator, where the message transmitter is configured to transmit the at least one message through the public switched telephone network link to cause Internet communications to be communicated to the personal computer through the public switch telephone network link.
摘要翻译：本发明的优选实施例是一种电缆调制解调器装置，用于通过有线电视链路和公共交换电话网络链路可靠地提供个人计算机访问因特网。本发明包括：连接到有线电视链路的有线电视链路故障检测器; 连接到有线电视链路故障检测器的消息发生器，其中消息发生器被配置为响应于有线电视链路故障检测器生成至少一个消息; 以及连接到消息发生器的消息发送器，其中消息发送器被配置为通过公共交换电话网络链路发送至少一个消息，以使得互联网通信通过公共交换机电话网络链路传送到个人计算机。

3. 发明授权

US06286058B1 Apparatus and methods for automatically rerouting packets in the event of a link failure 失效
标题翻译：系统，用于在检测到第一链路故障时，经由第二双向链路自动重新路由在第一链路上通常接收的分组
公开(公告)号：US06286058B1
公开(公告)日：2001-09-04
申请号：US08833198
申请日：1997-04-14
申请人： Scott E. Hrastar , Todd A. Merrill , Roy A. Bowcutt
发明人： Scott E. Hrastar , Todd A. Merrill , Roy A. Bowcutt
IPC分类号： G06F1314
CPC分类号： H04L61/2015 , H04L12/2801 , H04L29/06 , H04L45/00 , H04L45/22 , H04L69/14 , H04L69/22 , H04L69/40 , H04M11/06
摘要： An asymmetrical network for coupling customer-premises Internet hosts such as personal computers to the Internet. The head end of a CATV system has a high-bandwidth connection to the Internet. The down link connecting the personal computers to the Internet is the cables provided by the CATV system; the up link is a telephone connection to the head end. A router is connected to the down link by means of an RF modem, to the up link by means of an analog modem, and to a LAN which is connected to the Pcs. The router routes IP packets for the hosts that are received on the CATV cable to the hosts via the LAN; it routes IP packets from the hosts that are destined for the Internet to the head end via the telephone line. The asymmetrical network conserves IP addresses and addresses on the CATV cable by dynamically allocating the IP addresses for an RF modem's hosts and an address on the CATV cable for the RF modem in response to a request made by the RF modem via the telephone line. It further saves IP addresses by assigning a non-unique IP address to the router for use inside the LAN. When the CATV system fails, the asymmetrical network automatically begins to use the telephone line as both the up link and the down link, and when the CATV system is restored, the asymmetrical network automatically returns to using the CATV cable as the down link and the telephone line as the up link. A further feature of the asymmetrical network is that the head end components and the RF modem have IP addresses, so that standard TCP/IP protocols can be used to control the asymmetrical network.
摘要翻译：用于将客户端互联网主机（如个人计算机）连接到Internet的不对称网络。 CATV系统的前端具有与因特网的高带宽连接。将个人计算机连接到因特网的下行链路是由CATV系统提供的电缆; 上行链路是到头端的电话连接。路由器通过RF调制解调器连接到下行链路，通过模拟调制解调器连接到上行链路，并连接到连接到Pcs的LAN。路由器将经CATV电缆接收的主机的IP数据包通过LAN路由到主机; 它将通过电话线路将来自Internet的主机的IP数据包路由到头端。不对称网络通过动态分配RF调制解调器主机的IP地址和RF调制解调器的CATV电缆上的地址，通过电话线响应RF调制解调器的请求，节省了CATV电缆上的IP地址和地址。它通过为路由器分配非唯一的IP地址来进一步保存IP地址，以便在LAN内使用。当CATV系统发生故障时，不对称网络自动开始使用电话线作为上行链路和下行链路，当CATV系统恢复时，不对称网络自动返回到使用CATV电缆作为下行链路，电话线作为上行链路。不对称网络的另一个特征是头端组件和RF调制解调器具有IP地址，使得可以使用标准TCP / IP协议来控制非对称网络。

4. 发明授权

US06618353B2 Router for use with a link that has a set of concurrent channels 失效
标题翻译：路由器用于具有一组并发通道的链路
公开(公告)号：US06618353B2
公开(公告)日：2003-09-09
申请号：US08838833
申请日：1997-04-11
申请人： Todd A. Merrill , Mark E. Schutte , Scott E. Hrastar , Roy A. Bowcutt
发明人： Todd A. Merrill , Mark E. Schutte , Scott E. Hrastar , Roy A. Bowcutt
IPC分类号： G01R3108
CPC分类号： H04L29/12216 , H04H20/79 , H04H60/84 , H04L12/2801 , H04L12/2856 , H04L12/2863 , H04L12/2872 , H04L12/2874 , H04L12/5692 , H04L29/06 , H04L29/12207 , H04L29/12283 , H04L29/12801 , H04L29/12839 , H04L41/0213 , H04L41/0663 , H04L41/0677 , H04L61/20 , H04L61/2015 , H04L61/2061 , H04L61/6004 , H04L61/6022 , H04L63/08 , H04L69/40 , H04N7/17309 , H04N21/25816 , H04N21/42676 , H04N21/6118 , H04N21/6168
摘要： An asymmetrical network for coupling customer-premises Internet hosts such as personal computers to the Internet. The head end of a CATV system has a high-bandwidth connection to the Internet. The down link connecting the personal computers to the Internet is the cables provided by the CATV system; the up link is a telephone connection to the head end. A router is connected to the down link by means of an RF modem, to the up link by means of an analog modem, and to a LAN which is connected to the Pcs. The router routes IP packets for the hosts that are received on the CATV cable to the hosts via the LAN; it routes IP packets from the hosts that are destined for the Internet to the head end via the telephone line. The asymmetrical network conserves IP addresses and addresses on the CATV cable by dynamically allocating the IP addresses for an RF modem's hosts and an address on the CATV cable for the RF modem in response to a request made by the RF modem via the telephone line. It further saves IP addresses by assigning a non-unique IP address to the router for use inside the LAN. When the CATV system fails, the asymmetrical network automatically begins to use the telephone line as both the up link and the down link, and when the CATV system is restored, the asymmetrical network automatically returns to using the CATV cable as the down link and the telephone line as the up link. A further feature of the asymmetrical network is that the head end components and the RF modem have IP addresses, so that standard TCP/IP protocols can be used to control the asymmetrical network.
摘要翻译：用于将客户端互联网主机（如个人计算机）连接到Internet的不对称网络。 CATV系统的前端具有与因特网的高带宽连接。将个人计算机连接到因特网的下行链路是由CATV系统提供的电缆; 上行链路是到头端的电话连接。路由器通过RF调制解调器连接到下行链路，通过模拟调制解调器连接到上行链路，并连接到连接到Pcs的LAN。路由器将经CATV电缆接收的主机的IP数据包通过LAN路由到主机; 它将通过电话线路将来自Internet的主机的IP数据包路由到头端。不对称网络通过动态分配RF调制解调器主机的IP地址和RF调制解调器的CATV电缆上的地址，通过电话线响应RF调制解调器的请求，节省了CATV电缆上的IP地址和地址。它通过为路由器分配非唯一的IP地址来进一步保存IP地址，以便在LAN内使用。当CATV系统发生故障时，不对称网络自动开始使用电话线作为上行链路和下行链路，当CATV系统恢复时，不对称网络自动返回到使用CATV电缆作为下行链路，电话线作为上行链路。不对称网络的另一个特征是头端组件和RF调制解调器具有IP地址，使得可以使用标准TCP / IP协议来控制非对称网络。

5. 发明授权

US06301223B1 Method of using routing protocols to reroute packets during a link failure 失效
标题翻译：在链路故障期间使用路由协议重新路由数据包的方法
公开(公告)号：US06301223B1
公开(公告)日：2001-10-09
申请号：US08837073
申请日：1997-04-11
申请人： Scott E. Hrastar , Todd A. Merrill , Roy A. Bowcutt
发明人： Scott E. Hrastar , Todd A. Merrill , Roy A. Bowcutt
IPC分类号： G01R3108
CPC分类号： H04L29/12216 , H04H20/79 , H04H60/84 , H04L12/2801 , H04L12/2856 , H04L12/2863 , H04L12/2872 , H04L12/2874 , H04L12/5692 , H04L29/06 , H04L29/12207 , H04L29/12283 , H04L29/12801 , H04L29/12839 , H04L41/0213 , H04L41/0663 , H04L41/0677 , H04L61/20 , H04L61/2015 , H04L61/2061 , H04L61/6004 , H04L61/6022 , H04L63/08 , H04L69/40 , H04N7/17309 , H04N21/25816 , H04N21/42676 , H04N21/6118 , H04N21/6168
摘要： An asymmetrical network for coupling customer-premises Internet hosts such as personal computers to the Internet. The head end of a CATV system has a high-bandwidth connection to the Internet. The down link connecting the personal computers to the Internet is the cables provided by the CATV system; the up link is a telephone connection to the head end. A router is connected to the down link by means of an RF modem, to the up link by means of an analog modem, and to a LAN which is connected to the Pcs. The router routes IP packets for the hosts that are received on the CATV cable to the hosts via the LAN; it routes IP packets from the hosts that are destined for the Internet to the head end via the telephone line. The asymmetrical network conserves IP addresses and addresses on the CATV cable by dynamically allocating the IP addresses for an RF modem's hosts and an address on the CATV cable for the RF modem in response to a request made by the RF modem via the telephone line. It further saves IP addresses by assigning a non-unique IP address to the router for use inside the LAN. When the CATV system fails, the asymmetrical network automatically begins to use the telephone line as both the up link and the down link, and when the CATV system is restored, the asymmetrical network automatically returns to using the CATV cable as the down link and the telephone line as the up link. A further feature of the asymmetrical network is that the head end components and the RF modem have IP addresses, so that standard TCP/IP protocols can be used to control the asymmetrical network.
摘要翻译：用于将客户端互联网主机（如个人计算机）连接到Internet的不对称网络。 CATV系统的前端具有与因特网的高带宽连接。将个人计算机连接到因特网的下行链路是由CATV系统提供的电缆; 上行链路是到头端的电话连接。路由器通过RF调制解调器连接到下行链路，通过模拟调制解调器连接到上行链路，并连接到连接到Pcs的LAN。路由器将经CATV电缆接收的主机的IP数据包通过LAN路由到主机; 它将通过电话线路将来自Internet的主机的IP数据包路由到头端。不对称网络通过动态分配RF调制解调器主机的IP地址和RF调制解调器的CATV电缆上的地址，通过电话线响应RF调制解调器的请求，节省了CATV电缆上的IP地址和地址。它通过为路由器分配非唯一的IP地址来进一步保存IP地址，以便在LAN内使用。当CATV系统发生故障时，不对称网络自动开始使用电话线作为上行链路和下行链路，当CATV系统恢复时，不对称网络自动返回到使用CATV电缆作为下行链路，电话线作为上行链路。不对称网络的另一个特征是头端组件和RF调制解调器具有IP地址，使得可以使用标准TCP / IP协议来控制非对称网络。

6. 发明授权

US6052819A System and method for detecting correcting and discarding corrupted data packets in a cable data delivery system 失效
标题翻译：用于检测在电缆数据传送系统中校正和丢弃损坏的数据分组的系统和方法
公开(公告)号：US6052819A
公开(公告)日：2000-04-18
申请号：US835966
申请日：1997-04-11
申请人： James E Barker , Roy A. Bowcutt , Scott E. Hrastar , Todd A. Merrill , David A. Sedacca
发明人： James E Barker , Roy A. Bowcutt , Scott E. Hrastar , Todd A. Merrill , David A. Sedacca
IPC分类号： G06F15/16 , G06F15/173 , G08C15/00 , H03M13/00 , H04H20/79 , H04H60/84 , H04L12/24 , H04L12/28 , H04L12/54 , H04L29/06 , H04L29/12 , H04L29/14 , H04M11/00 , H04M11/08 , H04N7/10 , H04N7/173 , H04N9/00 , H04N21/258 , H04N21/426 , H04N21/61
CPC分类号： H04L29/12216 , H04H20/79 , H04L12/2801 , H04L12/2856 , H04L12/2863 , H04L12/2872 , H04L12/2874 , H04L12/5692 , H04L29/06 , H04L29/12283 , H04L29/12801 , H04L29/12839 , H04L41/0213 , H04L41/0663 , H04L41/0677 , H04L61/2015 , H04L61/2061 , H04L61/6004 , H04L61/6022 , H04L63/08 , H04L69/40 , H04N21/25816 , H04N21/42676 , H04N21/6118 , H04N21/6168 , H04N7/17309 , H04H60/84 , H04L29/12207 , H04L61/20
摘要： A method for transporting digital data from a sender to a receiver in a system where the digital data is broken into data packets for transmission over radio frequency channels, each data packet including forward error-correcting code, the method comprising the steps of receiving the data packets at the receiver; reconstructing the data packets to the digital data, the forward error-correcting code for fixing corrupted data packets; and halting the data packet reconstructing step if a data packet is uncorrectable.
摘要翻译：一种在数字数据被分解成用于通过射频信道传输的数据分组的系统中将数字数据从发送方传送到接收机的方法，每个数据分组包括前向纠错码，所述方法包括以下步骤：接收数据接收器上的数据包; 将数据包重建为数字数据，用于修复损坏的数据包的前向纠错码; 以及如果数据分组是不可校正的，则停止所述数据分组重建步骤。

7. 发明申请

US20080175377A1 Methods and Systems for Digital Authentication Using Digitally Signed Images 失效
标题翻译：使用数字签名图像进行数字认证的方法和系统
公开(公告)号：US20080175377A1
公开(公告)日：2008-07-24
申请号：US12015531
申请日：2008-01-17
申请人： Todd A. Merrill
发明人： Todd A. Merrill
IPC分类号： H04L9/30 , H04L9/32
CPC分类号： G06F21/36 , G09C5/00 , H04K1/00 , H04L9/3247 , H04L63/08 , H04L63/12 , H04L2209/56 , H04L2209/608
摘要： Various systems, methods, and programs embodied in computer-readable mediums are provided for digital authentication using digitally signed images. In one representative embodiment, a method comprising: extracting a first image portion from an image selected by a first party, the first image portion including a first encoded part of an second party digital signature; obtaining a second image portion associated with the first image portion, the second image portion including a second encoded part of the second party digital signature; decoding the first and second encoded parts of the second party digital signature; and confirming validity of the second party digital signature based upon a second party public key.
摘要翻译：提供了体现在计算机可读介质中的各种系统，方法和程序，用于使用数字签名的图像进行数字认证。在一个代表性实施例中，一种方法包括：从由第一方选择的图像中提取第一图像部分，所述第一图像部分包括第二方数字签名的第一编码部分; 获得与第一图像部分相关联的第二图像部分，第二图像部分包括第二方数字签名的第二编码部分; 对第二方数字签名的第一和第二编码部分进行解码; 以及基于第二方公钥确认第二方数字签名的有效性。

8. 发明授权

US08122255B2 Methods and systems for digital authentication using digitally signed images 失效
标题翻译：使用数字签名图像进行数字认证的方法和系统
公开(公告)号：US08122255B2
公开(公告)日：2012-02-21
申请号：US12015531
申请日：2008-01-17
申请人： Todd A. Merrill
发明人： Todd A. Merrill
IPC分类号： H04L9/32
CPC分类号： G06F21/36 , G09C5/00 , H04K1/00 , H04L9/3247 , H04L63/08 , H04L63/12 , H04L2209/56 , H04L2209/608
摘要： Various systems, methods, and programs embodied in computer-readable mediums are provided for digital authentication using digitally signed images. In one representative embodiment, a method includes extracting a first image portion from an image selected by a first party, where the first image portion including a first encoded part of an second party digital signature, and obtaining a second image portion associated with the first image portion, where the second image portion including a second encoded part of the second party digital signature. The first and second encoded parts of the second party digital signature are decoded and validity of the second party digital signature is confirmed based upon a second party public key.
摘要翻译：提供了体现在计算机可读介质中的各种系统，方法和程序，用于使用数字签名的图像进行数字认证。在一个代表性实施例中，一种方法包括从由第一方选择的图像中提取第一图像部分，其中第一图像部分包括第二方数字签名的第一编码部分，以及获得与第一图像相关联的第二图像部分其中第二图像部分包括第二方数字签名的第二编码部分。解码第二方数字签名的第一和第二编码部分，并且基于第二方公钥确认第二方数字签名的有效性。

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