公开(公告)号：US10566798B2

公开(公告)日：2020-02-18

申请号：US15087216

申请日：2016-03-31

Applicant: Texas Instruments Incorporated

Inventor： Il Han Kim ,  Xiaolin Lu

IPC: H02J3/00 ,  H02J3/38 ,  H02S40/32 ,  H02S40/34

Abstract: A photovoltaic system with an inverter, at least one solar panel for providing electrical power, and electrical wiring for coupling electrical power from the at least one solar panel to the inverter. Also included is a transmitter for transmitting a messaging protocol along the electrical wiring, where the protocol includes a multibit wireline signal. Also included is circuitry for selectively connecting the electrical power from the at least one solar panel along the electrical wiring to the inverter in response to the messaging protocol.

公开(公告)号：US20190239121A1

公开(公告)日：2019-08-01

申请号：US16383146

申请日：2019-04-12

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Wonsoo Kim ,  Il Han Kim

IPC: H04W28/08 ,  H04W52/02

CPC classification number: H04W28/08 ,  H04W52/0258 ,  H04W52/38

Abstract: A utilization factor controller is to estimate power consumption values corresponding to a plurality of first utilization factor and second utilization factor pairs, the first utilization factor corresponding to utilization of the first transceiver that is to communicate using a first protocol, the second utilization factor corresponding to utilization of the second transceiver that is to communicate using a second protocol different form the first protocol, the utilization factor controller to select a first utilization factor and second utilization factor pair based on the estimated power consumption value. A transmission time controller is to calculate first and second transmission times to be used by the first and second transceiver based on the selected first utilization factor and second utilization factor pair. A data allocator is to allocate data for transmission by the first transceiver and the second transceiver according to the first and second transmission times.

公开(公告)号：US10277276B2

公开(公告)日：2019-04-30

申请号：US15793900

申请日：2017-10-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Il Han Kim ,  Anand G. Dabak ,  Badri N Varadarajan

IPC: H04B3/54 ,  H04L12/911

Abstract: Systems and methods for application profiles and device classes in power line communications (PLCs) are described. In some embodiments, a PLC device has the device class defined by a PHY layer and may include a processor and a memory coupled to the processor. The memory may be configured to store program instructions, which may be executable by the processor to cause the PLC device to communicate with a higher-level PLC apparatus over a power line using a frequency band. The frequency band may be selected based upon an application profile and/or a device class associated with the PLC device. In some implementations, the higher-level PLC apparatus may include a PLC gateway or a data concentrator, and the PLC device may include a PLC modem or the like. Examples of application profiles include access communications, in-premises connectivity, AC charging, and/or DC charging. Device classes may represent a minimum communication data rate and/or an operating frequency band restriction of the PLC device.

公开(公告)号：US10177858B2

公开(公告)日：2019-01-08

申请号：US14969330

申请日：2015-12-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mehmet Ali Donmez ,  Anand Ganesh Dabak ,  Il Han Kim ,  Timothy Mark Schmidl

IPC: H04B11/00 ,  H04L27/12 ,  H04L27/144

Abstract: A method of encoding a plurality of data signals is disclosed. The method includes selecting a set of M ultrasonic frequencies, wherein each of the M ultrasonic frequencies differs from an adjacent frequency by at least a first frequency spacing, and wherein M is a positive integer. An encoder receives the plurality of data signals. Each of the plurality of data signals is encoded by a respective set of Q of the M ultrasonic frequencies, wherein Q is a positive integer less than M. A minimum frequency separation between any pair of the Q ultrasonic frequencies of any respective set is greater than the first frequency spacing.

公开(公告)号：US20180260015A1

公开(公告)日：2018-09-13

申请号：US15457477

申请日：2017-03-13

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Wonsoo Kim ,  Il Han Kim

IPC: G06F1/32

CPC classification number: G06F1/3278 ,  G06F1/3287 ,  H04W28/08

Abstract: Methods, apparatus, systems and articles of manufacture to optimize power consumption and capacity in a multi-mode communication system are disclosed. A utilization factor controller is to estimate power consumption values corresponding to a plurality of first utilization factor and second utilization factor pairs, the first utilization factor corresponding to utilization of the first transceiver that is to communicate using a first protocol, the second utilization factor corresponding to utilization of the second transceiver that is to communicate using a second protocol different form the first protocol, the utilization factor controller to select a first utilization factor and second utilization factor pair based on the estimated power consumption value. A transmission time controller is to calculate first and second transmission times to be used by the first and second transceiver based on the selected first utilization factor and second utilization factor pair. A data allocator is to allocate data for transmission by the first transceiver and the second transceiver according to the first and second transmission times.

公开(公告)号：US20180234526A1

公开(公告)日：2018-08-16

申请号：US15894250

申请日：2018-02-12

Applicant: Texas Instruments Incorporated

Inventor： Gang Xu ,  Ramanuja Vedantham ,  Kumaran Vijayasankar ,  Anand G Dabak ,  Tarkesh Pande ,  Il Han Kim ,  Xiaolin Lu

IPC: H04L29/06 ,  H04B3/54

CPC classification number: H04L69/22 ,  H04B3/54 ,  H04B3/542 ,  H04B2203/5408

Abstract: In a disclosed embodiment, a method for communication in a network includes receiving, at a first device registered to the network, a physical layer (PHY) frame that includes a PHY header and a MAC header. The PHY frame may further include a MAC payload. The PHY header includes a destination address field. The method further includes comparing a network address of the first device to the destination address field to determine whether the destination address field stores a value having the same number of bits as the network address. When the comparison indicates that the value stored by the destination address field does not have the same number of bits as the network address, the method skips decoding the MAC header and the MAC payload.

公开(公告)号：US20170288408A1

公开(公告)日：2017-10-05

申请号：US15087216

申请日：2016-03-31

Applicant: Texas Instruments Incorporated

Inventor： Il Han Kim ,  Xiaolin Lu

IPC: H02J3/38 ,  H02S40/34 ,  H02S40/32

Abstract: A photovoltaic system with an inverter, at least one solar panel for providing electrical power, and electrical wiring for coupling electrical power from the at least one solar panel to the inverter. Also included is a transmitter for transmitting a messaging protocol along the electrical wiring, where the protocol includes a multibit wireline signal. Also included is circuitry for selectively connecting the electrical power from the at least one solar panel along the electrical wiring to the inverter in response to the messaging protocol.

公开(公告)号：US09780819B2

公开(公告)日：2017-10-03

申请号：US15061301

申请日：2016-03-04

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Tarkesh Pande ,  Anuj Batra ,  Il Han Kim

IPC: H04B1/10 ,  H04L5/00

CPC classification number: H04J11/0066 ,  H04L25/03821 ,  H04L27/2647

Abstract: An orthogonal frequency division multiplexing (OFDM) receiver includes detection logic, offset generation logic, tone erasure logic, and correction generation logic. The detection logic is configured to detect a signal containing a block of samples that includes a narrowband interferer from a communication channel. The offset generation logic is configured to align a frequency of the narrowband interferer to a center of a subcarrier frequency of the communication channel to produce an offset signal thereby introducing inter-carrier interference (ICI). The tone erasure logic is configured to remove the subcarrier frequency from the offset signal to produce an interferer erased offset signal. The correction generation logic is configured to remove the ICI to produce an interferer erased signal.

公开(公告)号：US09729289B2

公开(公告)日：2017-08-08

申请号：US14449981

申请日：2014-08-01

Applicant: Texas Instruments Incorporated

Inventor： Jing Lin ,  Tarkesh Pande ,  Il Han Kim ,  Anuj Batra

IPC: H04W48/18 ,  H04L5/00 ,  H04L27/20 ,  H04L27/36 ,  H04B3/54 ,  H04W28/04

CPC classification number: H04L5/0048 ,  H04B3/54 ,  H04B2203/5408 ,  H04L27/20 ,  H04L27/36 ,  H04W28/04 ,  H04W72/1263

Abstract: A method of encoding a first bit and a second bit for transmission on a transmission band is provided. The method includes: mapping, via a mapping component, the first bit and the second bit into a first symbol; mapping, via the mapping component, the first bit and the second bit into a second symbol; dividing, via a dividing component, the transmission band into subcarriers; allocating, via an allocating component, the first symbol to a first subcarrier of the subcarriers; allocating, via the allocating component, the second symbol to a second subcarrier of the subcarriers; and differentially encoding, via a differential encoder, the first symbol and the second symbol.

公开(公告)号：US20160323132A1

公开(公告)日：2016-11-03

申请号：US15206489

申请日：2016-07-11

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mostafa Sayed Ibrahim ,  Il Han Kim ,  Tarkesh Pande ,  Anuj Batra

IPC: H04L27/26 ,  H04B3/54 ,  H04B7/04

CPC classification number: H04L27/2656 ,  H04B3/54 ,  H04B3/542 ,  H04B3/546 ,  H04B7/0413 ,  H04L1/188 ,  H04L5/0023 ,  H04L7/042 ,  H04L27/26 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2655 ,  H04L27/2663 ,  H04W74/0816

Abstract: A PLC network system and method operative with OFDM for generating MIMO frames with suitable preamble portions configured to provide backward compatibility with legacy PLC devices and facilitate different receiver tasks such as frame detection and symbol timing, channel estimation and automatic gain control (AGC), including robust preamble detection in the presence of impulsive noise and frequency-selective channels of the PLC network. A PLC device may include a delayed correlation detector and a cross-correlation detector operating in concert to facilitate preamble detection in one implementation.

Abstract translation: 一种PLC网络系统和方法，用于生成具有合适的前导码部分的MIMO帧的OFDM帧，其被配置为提供与传统PLC设备的向后兼容性，并且促进诸如帧检测和符号定时，信道估计和自动增益控制（AGC）的不同接收机任务，包括 在存在脉冲噪声和PLC网络的频率选择性通道的情况下进行鲁棒前同步码检测。 PLC设备可以包括延迟相关检测器和互相关检测器，其一起操作以便于在一个实现中进行前导码检测。