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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。
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公开(公告)号：US20220216961A1
公开(公告)日：2022-07-07
申请号：US17699826
申请日：2022-03-21
Applicant: Texas Instruments Incorporated
Inventor： Timothy Mark Schmidl , Eko Nugroho Onggosanusi , Anand Ganesh Dabak , Aris Papasakellariou
Abstract: A method of power saving for a wireless transceiver (FIGS. 1 and 2) is disclosed. The transceiver has an active power mode (504) and a reduced power mode (510). The transceiver is operated in the reduced power mode (510) and monitors transmissions from a remote wireless transmitter while in the reduced power mode. The transceiver identifies a transmission from the remote wireless transmitter by a transceiver identity included in the transmission (FIG. 6, UE identification). The transceiver transitions to the active power mode (512) in response to identifying the transmission.
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公开(公告)号：US20220149892A1
公开(公告)日：2022-05-12
申请号：US17096886
申请日：2020-11-12
Applicant: Texas Instruments Incorporated
Inventor： Anand Dabak , Mahmoud Abdelmoneim Abdelmoneim Elgenedy , Timothy Mark Schmidl , Swaminathan Sankaran
Abstract: In described examples of a signal equalizer, a first filter stage is configured to perform adaptive equalization of crosstalk between a first signal component and a second signal component of a complex signal. A second filter stage is coupled serially to the first filter stage. The second equalizer stage is configured to perform separate adaptive equalization of the first signal component and separate adaptive equalization of the second signal component
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公开(公告)号：US20180376481A1
公开(公告)日：2018-12-27
申请号：US16116259
申请日：2018-08-29
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Timothy Mark Schmidl , Ariton Xhafa , Arvind Khandalu Raghu
Abstract: A method of operating a network on a plurality of frequency hopping channels is disclosed. The method includes transmitting a beacon on a beacon channel different from the frequency hopping channels and receiving a request from a node to join the network in response to the beacon. The method further includes adding the node to the network in response to the step of receiving and communicating with the node on the plurality of frequency hopping channels after the step of adding.
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公开(公告)号：US10103840B2
公开(公告)日：2018-10-16
申请号：US14952406
申请日：2015-11-25
Applicant: Texas Instruments Incorporated
Inventor： Yumin Zhang , Wenxun Qiu , Timothy Mark Schmidl , Anuj Batra
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.
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Patent Agency Ranking
公开(公告)号：US10091786B2
公开(公告)日：2018-10-02
申请号：US15048843
申请日：2016-02-19
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Timothy Mark Schmidl , Ariton Xhafa , Arvind Kandhalu Raghu
Abstract: A method of operating a network on a plurality of frequency hopping channels is disclosed. The method includes transmitting a beacon on a beacon channel different from the frequency hopping channels and receiving a request from a node to join the network in response to the beacon. The method further includes adding the node to the network in response to the step of receiving and communicating with the node on the plurality of frequency hopping channels after the step of adding.
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公开(公告)号：US20180176052A1
公开(公告)日：2018-06-21
申请号：US15899310
申请日：2018-02-19
Applicant: Texas Instruments Incorporated
Inventor： Timothy Mark Schmidl , Srinath Hosur , Anuj Batra
CPC classification number: H04L27/0012 , H04L27/2613
Abstract: A method of communicating in a wireless network including a plurality of nodes having communications devices including a first node, wherein at least one node utilizes a first physical layer (PHY) modulation, and at least one other node utilizes a second PHY modulation different from the first PHY modulation. The first node receives a PHY frame transmitted by one of the plurality of nodes, and identifies a PHY modulation type selected from the first PHY modulation and the second PHY modulation used in the PHY frame or to be used in a subsequently to be received PHY frame or frame portion. The first node decodes the PHY frame or the subsequently to be received PHY frame or frame portion using the PHY modulation type identified in the identifying step.
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公开(公告)号：US09742499B2
公开(公告)日：2017-08-22
申请号：US14969852
申请日：2015-12-15
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Mehmet Ali Donmez , Anand Ganesh Dabak , Il Han Kim , Timothy Mark Schmidl
IPC: H04L27/14 , H04B10/556 , H04B3/10 , H04L5/00
CPC classification number: H04B10/556 , H04B3/10 , H04L5/0048 , H04L27/106 , H04L27/14
Abstract: An ultrasonic communication circuit is disclosed. The circuit includes an ultrasonic transmitter arranged to transmit a training signal having a frequency to a remote transceiver over an ultrasonic communication channel. An ultrasonic receiver is arranged to receive information from the remote transceiver in response to the training signal. The ultrasonic transmitter is arranged to transmit a data signal to the remote transceiver. The data signal has a duty cycle determined by the information.
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公开(公告)号：US09584172B2
公开(公告)日：2017-02-28
申请号：US14821264
申请日：2015-08-07
Applicant: Texas Instruments Incorporated
Inventor： Wenxun Qiu , Timothy Mark Schmidl , Minghua Fu , Anuj Batra
CPC classification number: H04B1/123 , H03G3/3078 , H03G3/3089 , H03M3/042 , H04B7/0811 , H04B17/20 , H04L27/14
Abstract: A wireless network receiver includes a detection module that uses preamble data in a data frame for signal processing functions and the detection module is configured to adjust the number of preamble data bits that are used based on the power of a received signal.
Abstract translation: 无线网络接收机包括检测模块，该检测模块使用用于信号处理功能的数据帧中的前导码数据，并且检测模块被配置为基于接收信号的功率来调整所使用的前导码数据位的数量。
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公开(公告)号：US09432077B2
公开(公告)日：2016-08-30
申请号：US13762245
申请日：2013-02-07
Applicant: Texas Instruments Incorporated
Inventor： Timothy Mark Schmidl
IPC: H04B1/707
CPC classification number: H04B1/707
Abstract: Embodiments of the invention provide a method to detect DSSS preambles in smart utility networks. A DSSS signal is received by a receiver and a digital sequence of samples is formed. A difference value is calculated between pairs of samples in the digital sequence of samples to form a sequence of differential values. A known preamble differential value sequence is correlated with the sequence of differential values to form a sequence of correlation values. A location of the preamble is located in the digital sequence of samples corresponding to a peak in the sequence of correlation values that exceeds a threshold value.
Abstract translation: 本发明的实施例提供一种在智能公用事业网络中检测DSSS前导码的方法。 DSSS信号由接收机接收并形成数字序列样本。 在数字样本序列中的样本对之间计算差值，以形成差分值序列。 已知的前导码差分值序列与差分值的序列相关，以形成相关值序列。 前导码的位置位于对应于超过阈值的相关值序列中的峰值的数字样本序列中。
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