-
公开(公告)号：US11736269B2
公开(公告)日：2023-08-22
申请号：US17488364
申请日：2021-09-29
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Wenxun Qiu , Tomas Motos , Marius Moe
IPC: H04L7/04 , H04L27/34 , H04L27/38 , H04B1/7073
CPC classification number: H04L7/042 , H04B1/70735 , H04L27/3405 , H04L27/3455 , H04L27/3836 , H04B2201/7073 , H04L2212/00
Abstract: A technique of separating a sequence of modulation shift keying (MSK) symbols into a first portion and a second portion and separately comparing the first portion of the sequence of MSK symbols and the second portion of the sequence of MSK symbols against a first portion of a reference sequence of MSK symbols and a second portion of the reference sequence of MSK symbols allows a low complexity detection of a start field delimiter in a wireless communication packet.
-
公开(公告)号：US10432439B2
公开(公告)日：2019-10-01
申请号：US15858771
申请日：2017-12-29
Applicant: Texas Instruments Incorporated
Inventor： Wenxun Qiu , Tomas Motos
IPC: H04L27/20 , H04L27/00 , H04L1/00 , H04B1/7097
Abstract: A wireless transmitter for transmitting bits to a wireless receiver. The wireless transmitter comprises: (i) circuitry for generating binary data bits; and (ii) circuitry for providing a first spreading sequence for a first bit in the binary data bits and for providing a second spreading sequence for a second bit in the binary data bits, wherein the second bit is complementary to the first bit. Each spreading sequence consists of an integer number N of bits, and the circuitry for providing provides a same bit value in an integer number M of bit positions in the first and second spreading sequences, where M
-
公开(公告)号：US09231732B2
公开(公告)日：2016-01-05
申请号：US14047021
申请日：2013-10-07
Applicant: Texas Instruments, Incorporated
Inventor： Yumin Zhang , Wenxun Qiu , Timothy Mark Schmidl , Anuj Batra
CPC classification number: H04L1/0041 , G06F11/0709 , G06F11/1004 , G06F11/1402 , H03M13/09 , H04L1/0045 , H04L1/0053 , H04L1/0061 , H04L1/0072 , H04L1/0075 , H04L1/0079 , H04L1/0083 , H04L69/22
Abstract: A networking device includes a packet header protect generator, a transmitter, a receiver, a decoder and router. The transmitter transmits a data packet to the receiver. The data packet includes a data packet header. The packet header protection generator is arranged to toggle selected bits of a protected portion of the data packet header and generate a data integrity signature. The receiver receives the data packet and generates a received data integrity signature. The decoder computes a locally computed data integrity signature in response to the protected portion of the received data packet header. The locally computed data integrity signature is compared with the received data integrity signature. The router selects a portion of a routing path in response to whether a data packet forwarding destination includes a decoder arranged to compute a locally computed data integrity signature.
Abstract translation: 网络设备包括分组报头保护发生器，发射机，接收机，解码器和路由器。 发射机向接收机发送数据包。 数据分组包括数据分组报头。 分组报头保护发生器被布置为切换数据分组报头的受保护部分的所选位，并生成数据完整性签名。 接收器接收数据包并产生接收到的数据完整性签名。 解码器响应于接收到的数据分组报头的受保护部分来计算本地计算的数据完整性签名。 将本地计算的数据完整性签名与接收到的数据完整性签名进行比较。 响应于数据分组转发目的地是否包括被布置为计算本地计算的数据完整性签名的解码器，路由器选择路由路径的一部分。
-
公开(公告)号：US11165555B2
公开(公告)日：2021-11-02
申请号：US17028328
申请日：2020-09-22
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Wenxun Qiu , Tomas Motos , Marius Moe
IPC: H04L7/04 , H04L27/34 , H04L27/38 , H04B1/7073
Abstract: A technique of separating a sequence of modulation shift keying (MSK) symbols into a first portion and a second portion and separately comparing the first portion of the sequence of MSK symbols and the second portion of the sequence of MSK symbols against a first portion of a reference sequence of MSK symbols and a second portion of the reference sequence of MSK symbols allows a low complexity detection of a start field delimiter in a wireless communication packet.
-
公开(公告)号：US09940273B2
公开(公告)日：2018-04-10
申请号：US14702996
申请日：2015-05-04
Applicant: Texas Instruments Incorporated
Inventor： Wenxun Qiu , Minghua Fu
CPC classification number: G06F13/28 , G06F9/44563 , G06F9/4812 , G06F9/50 , G06F13/102
Abstract: Dynamic sharing of RAM in a software-defined communication system includes storing program code in a flash memory, categorizing parts of the code into groups of transmit categories according to when a part of the code needs to be copied into a section of a RAM and then executed during a first state of a TX state machine and according to how another part of the code can be later fit into the same section and then executed during a second state. Similarly, parts of the code are categorized into groups of receive categories according to when a part of the code needs to be copied into a section of RAM and then executed during a first state of a RX state machine and according to how another part of the code can be later fit into that section and then executed during a second state of the RX state machine, to reduce the amount of RAM without sacrificing speed performance.
-
Patent Agency Ranking
公开(公告)号：US09853844B2
公开(公告)日：2017-12-26
申请号：US15656039
申请日：2017-07-21
Applicant: Texas Instruments Incorporated
Inventor： Wenxun Qiu , Timothy Mark Schmidl
Abstract: Disclosed embodiments include a receiver having an input that receives a frequency shift key (FSK) signal having a preamble comprising preamble symbols, a phase compensator that applies a compensation vector to one of first and second samples of a first preamble symbol, wherein applying the compensation vector to the one of the first and second samples produces a compensated sample, a demodulator that determines a phase offset between the compensated sample and the other one of the first and second samples of the first preamble symbol, and a frequency offset mapper that determines a frequency offset based at least upon the phase offset. The receiver applies the frequency offset to the FSK signal.
-
公开(公告)号：US09722833B2
公开(公告)日：2017-08-01
申请号：US15003181
申请日：2016-01-21
Applicant: Texas Instruments Incorporated
Inventor： Wenxun Qiu , Timothy Mark Schmidl
Abstract: A frequency shift key (FSK) receiver includes a phase compensator for compensating for frequency differences in a transmitter that transmits a FSK signal to the receiver. The phase compensating is performed before the FSK signal is demodulated by the receiver.
-
公开(公告)号：US20160087754A1
公开(公告)日：2016-03-24
申请号：US14952406
申请日：2015-11-25
Applicant: Texas Instruments Incorporated
Inventor： Yumin Zhang , Wenxun Qiu , Timothy Mark Schmidl , Anuj Batra
CPC classification number: H04L1/0041 , G06F11/0709 , G06F11/1004 , G06F11/1402 , H03M13/09 , H04L1/0045 , H04L1/0053 , H04L1/0061 , H04L1/0072 , H04L1/0075 , H04L1/0079 , H04L1/0083 , H04L69/22
Abstract: A networking device includes a packet header protect generator, a transmitter, a receiver, a decoder and router. The transmitter transmits a data packet to the receiver. The data packet includes a data packet header. The packet header protection generator is arranged to toggle selected bits of a protected portion of the data packet header and generate a data integrity signature. The receiver receives the data packet and generates a received data integrity signature. The decoder computes a locally computed data integrity signature in response to the protected portion of the received data packet header. The locally computed data integrity signature is compared with the received data integrity signature. The router selects a portion of a routing path in response to whether a data packet forwarding destination includes a decoder arranged to compute a locally computed data integrity signature.
Abstract translation: 网络设备包括分组报头保护发生器，发射机，接收机，解码器和路由器。 发射机向接收机发送数据包。 数据分组包括数据分组报头。 分组报头保护发生器被布置为切换数据分组报头的受保护部分的所选位，并生成数据完整性签名。 接收器接收数据包并产生接收到的数据完整性签名。 解码器响应于接收到的数据分组报头的受保护部分来计算本地计算的数据完整性签名。 将本地计算的数据完整性签名与接收到的数据完整性签名进行比较。 响应于数据分组转发目的地是否包括被布置为计算本地计算的数据完整性签名的解码器，路由器选择路由路径的一部分。
-
公开(公告)号：US20150100856A1
公开(公告)日：2015-04-09
申请号：US14047021
申请日：2013-10-07
Applicant: Texas Instruments, Incorporated
Inventor： Yumin Zhang , Wenxun Qiu , Timothy Mark Schmidl , Anuj Batra
CPC classification number: H04L1/0041 , G06F11/0709 , G06F11/1004 , G06F11/1402 , H03M13/09 , H04L1/0045 , H04L1/0053 , H04L1/0061 , H04L1/0072 , H04L1/0075 , H04L1/0079 , H04L1/0083 , H04L69/22
Abstract: A packet header protection system includes, for example, a header checksum (CS) that is arranged to provide error detection capability to FSK (frequency shift keyed) packet headers. Accordingly, receivers in the network can more quickly terminate processing of an errored packet upon detection of error(s) in the header. Quickly detecting packet header errors helps to avoid a sequence of compounding errors such as the repeated transmissions of a packet having an undetected erroneous header. Accordingly, the packet header protection system reduces false alarm rate in the network and increases network throughput.
Abstract translation: 分组报头保护系统包括例如被配置为向FSK（频移密钥）分组报头提供错误检测能力的报头校验和（CS）。 因此，当检测到报头中的错误时，网络中的接收机可以更快速地终止错误分组的处理。 快速检测分组报头错误有助于避免复制错误的序列，例如具有未检测到的错误报头的分组的重复传输。 因此，分组报头保护系统降低了网络中的误报率，并提高了网络吞吐量。
-
公开(公告)号：US20190207792A1
公开(公告)日：2019-07-04
申请号：US15858771
申请日：2017-12-29
Applicant: Texas Instruments Incorporated
Inventor： Wenxun Qiu , Tomas Motos
IPC: H04L27/20 , H04L27/00 , H04B1/7097 , H04L1/00
CPC classification number: H04L27/2014 , H04B1/7097 , H04B2201/709709 , H04L1/0071 , H04L27/0008
Abstract: A wireless transmitter for transmitting bits to a wireless receiver. The wireless transmitter comprises: (i) circuitry for generating binary data bits; and (ii) circuitry for providing a first spreading sequence for a first bit in the binary data bits and for providing a second spreading sequence for a second bit in the binary data bits, wherein the second bit is complementary to the first bit. Each spreading sequence consists of an integer number N of bits, and the circuitry for providing provides a same bit value in an integer number M of bit positions in the first and second spreading sequences, where M
-
-
-
-
-
-
-
-
-
Search Results
19
records
(took 0.058 seconds)
