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    • 1. 发明授权
    • Packet data communication method and system
    • 分组数据通信方法和系统
    • US5818852A
    • 1998-10-06
    • US752512
    • 1996-11-20
    • Vijay Kapoor
    • Vijay Kapoor
    • H04L1/18
    • H04L1/1803
    • A data transmission system (5) transmits data between a transmitter (10) and a receiver (20). Each data packet frame (130) is made up of three parts: a header (131), a packet identifier number (132), and subframes of data (133). Error codes are generated corresponding to each subframe of data (133). The transmitter (10) will then check the error code to determine which subframes of data (133) contain an error. If there are errors in the data packet (130), then the receiver (20) stores the error-free subframes in memory and does not send an acknowledgment packet (140). The master (10) will retransmit the same data packet until it receives an acknowledgment packet (140).
    • 数据传输系统(5)在发射机(10)和接收机(20)之间传输数据。 每个数据分组帧(130)由三个部分组成:报头(131),分组标识符号(132)和数据子帧(133)。 对应于数据的每个子帧(133)生成错误代码。 然后,发射机(10)将检查错误代码以确定数据(133)的子帧包含错误。 如果数据分组(130)中存在错误,则接收机(20)将无错误的子帧存储在存储器中,并且不发送确认分组(140)。 主机(10)将重传相同的数据分组,直到其接收到确认分组(140)。
    • 3. 发明授权
    • Numbering scheme for dynamic error encoding and method therefore
    • 因此,动态错误编码的编号方案和方法
    • US5757367A
    • 1998-05-26
    • US597671
    • 1996-02-06
    • Vijay Kapoor
    • Vijay Kapoor
    • H04L1/00H04L1/18H04L5/16
    • H04L1/0083H04L1/0009H04L1/0025H04L1/1841
    • A communication system operates on a fixed-length data string (339) and utilizes fixed-length frames (200) to transmit data. Variable noise on a transmission path (105) requires adaptive encoding to sustain effective communication. An adaptive encoding type (201) produces variable length codes (205). Variable length codes (205) are accommodated by segmenting a fixed-length data string (339) into data groups. A data group (204) plus a code (205) occupy a fixed-length frame (200). At a transceiver node (150), the data groups (204) are ordered and concatenated to form the fixed-length data string (339).
    • 通信系统对固定长度的数据串(339)进行操作,并利用固定长度的帧(200)传输数据。 传输路径(105)上的可变噪声需要自适应编码以维持有效的通信。 自适应编码类型(201)产生可变长度码(205)。 可变长度代码(205)通过将固定长度数据串(339)分割成数据组来适应。 数据组(204)加上代码(205)占用固定长度的帧(200)。 在收发器节点(150)处,对数据组(204)进行排序和级联以形成固定长度数据串(339)。
    • 5. 发明授权
    • Redundant acknowledgements for packetized data in noisy links and method
thereof
    • 用于噪声链路中的分组化数据的冗余确认及其方法
    • US5701311A
    • 1997-12-23
    • US598783
    • 1996-02-08
    • Vijay Kapoor
    • Vijay Kapoor
    • H04L1/12H04L1/16
    • H04L1/1628H04L2001/125
    • A communication system dispatches packet data (130) from a master transceiver (10) to a slave transceiver (20). A slave transceiver (20) records the successful arrival of the data packet (130) in an acknowledgment history (115). When propagation conditions between a slave transceiver (20) and a master transceiver (10) are non-ideal, an acknowledgment (140) may be lost and needless retransmission of data packet (130) commenced. However, a slave transceiver (20) generates an acknowledgment (140) from an acknowledgment history (115) containing confirmations for multiple data packets contained within an outstanding packet window (120). If a specific acknowledgment (140) does not arrive at a master transceiver (10), a subsequent acknowledgment (140) contains confirmation of a previously received data packet (130) thus avoiding the needless retransmission of a previously successfully received data packet (130).
    • 通信系统将分组数据(130)从主收发器(10)分派到从收发器(20)。 从属收发器(20)将数据分组(130)的成功到达记录在确认历史(115)中。 当从属收发器(20)和主收发器(10)之间的传播条件是非理想的时,确认(140)可能丢失,数据分组(130)的不必要的重传开始。 然而,从属收发器(20)从包含未知分组窗口(120)中包含的多个数据分组的确认的确认历史(115)生成确认(140)。 如果特定确认(140)没有到达主收发器(10),则随后的确认(140)包含先前接收的数据分组(130)的确认,从而避免先前成功接收的数据分组(130)的不必要的重传, 。
    • 7. 发明授权
    • Directional routing of packets in a satellite network
    • 卫星网络中数据包的定向路由
    • US06404769B1
    • 2002-06-11
    • US09080179
    • 1998-05-18
    • Vijay Kapoor
    • Vijay Kapoor
    • H04L1256
    • H04B7/18584
    • A method and apparatus encompasses a technique for routing an information packet through a satellite communications system 20 from a source satellite 38 to a destination satellite 40. A path through the system 20 is chosen for the packet and an identifier identifying the path is appended to the packet. In addition, an identifier identifying the destination satellite 40 is appended to the packet. Satellites in the system 20 then use the identifiers in the packet to route the packet to the destination satellite 40. If the chosen path is not available, an alternate path can be taken by the packet. In one embodiment of the present invention, a centralized controller 36 is provided for controlling the routing of packets throughout the entire system 20.
    • 一种方法和装置包括用于将信息包通过卫星通信系统20从源卫星38路由到目的地卫星40的技术。通过系统20的路径被选择用于分组,并且标识路径的标识符附加到 包。 此外,标识目的地卫星40的标识符附加到分组。 然后,系统20中的卫星使用分组中的标识符将分组路由到目的地卫星40.如果所选择的路径不可用,则分组可以采用备用路径。 在本发明的一个实施例中,提供了集中控制器36,用于控制整个系统20中分组的路由。
    • 9. 发明授权
    • Method and system for ordering out-of-sequence packets
    • 排序不合格数据包的方法和系统
    • US5648970A
    • 1997-07-15
    • US606471
    • 1996-03-04
    • Vijay Kapoor
    • Vijay Kapoor
    • H04L12/56
    • H04L47/34H04L47/10H04L47/28Y10S370/902
    • In a packet switched network, a method and system order packets arriving out-of-sequence from a lower service. An ordering service temporarily buffers packets (101-115) while delayed packets arrive and forwards in-sequence packets to an upper service. Delay introduced by buffering does not accumulate as a propagation toleration timer (304) is activated for a predetermined time period (120) while awaiting the arrival of delayed packets or until the delayed packet arrives. Out-of-sequence packets are grouped between a lower-bound and an upper-bound of sequence identifiers to avoid accumulated delay due to repetitive lost packets.
    • 在分组交换网络中,从较低服务到达序列的方法和系统顺序分组。 订购服务在延迟的数据包到达时临时缓冲数据包(101-115),并将顺序数据包转发到上层服务器。 当等待延迟分组到达或直到延迟的分组到达时,通过缓冲引入的延迟不会累积,因为传播容许定时器(304)被激活预定时间段(120)。 失序分组在序列标识符的下限和上限之间分组,以避免由于重复的丢失分组而导致的累积延迟。