公开(公告)号：US2947863A

公开(公告)日：1960-08-02

申请号：US41691254

申请日：1954-03-17

申请人： HOFFMAN ELECTRONICS CORP

发明人： BUIE JAMES L

IPC分类号： H03D3/00

CPC分类号： H03D3/00

公开(公告)号：US2647992A

公开(公告)日：1953-08-04

申请号：US6329248

申请日：1948-12-03

申请人： GEN ELECTRIC

发明人： DOME ROBERT B

IPC分类号： H03D3/00 ,  H04B1/26

CPC分类号： H03D3/00 ,  H04B1/26

公开(公告)号：US2296091A

公开(公告)日：1942-09-15

申请号：US39958641

申请日：1941-06-25

申请人： RCA CORP

发明人： CROSBY MURRAY G

IPC分类号： H03D3/00

CPC分类号： H03D3/00

公开(公告)号：US2212338A

公开(公告)日：1940-08-20

申请号：US20474538

申请日：1938-04-28

申请人： BELL TELEPHONE LABOR INC

发明人： RALPH BOWN

IPC分类号： H03D3/00 ,  H04B14/00

CPC分类号： H04B14/006 ,  H03D3/00 ,  H03D3/003

公开(公告)号：US20180131545A1

公开(公告)日：2018-05-10

申请号：US15860988

申请日：2018-01-03

申请人： Texas Instruments Incorporated

发明人： Subhashish Mukherjee ,  Abhijit Anant Patki ,  Madhulatha Bonu ,  Kumar Anurag Shrivastava

IPC分类号： H04L27/22 ,  H04L7/033 ,  H03K19/21 ,  H03L7/113 ,  H03L7/087 ,  H04L7/00

CPC分类号： H04L27/22 ,  H03D3/00 ,  H03K19/21 ,  H03L7/081 ,  H03L7/087 ,  H03L7/113 ,  H04L7/0087 ,  H04L7/0331 ,  H04L27/2271

摘要： Methods and apparatus for performing a high speed phase demodulation scheme using a low bandwidth phase-lock loop are disclosed. An example apparatus includes a low bandwidth phase lock loop to lock to a data signal at a first phase, the data signal capable of oscillating at the first phase or a second phase; and output a first output signal at the first phase and a second output signal at the second phase, the first output signal or the second output signal being utilized in a feedback loop of the low bandwidth phase lock loop. The example apparatus further includes a fast phase change detection circuit coupled to the low bandwidth phase lock loop to determine whether the data signal is oscillating at the first phase or the second phase.

公开(公告)号：US20170272119A1

公开(公告)日：2017-09-21

申请号：US15505378

申请日：2014-11-10

申请人： Michael MCLAUGHLIN ,  Billy VERSO ,  Tony PROUDFOOT

发明人： Michael MCLAUGHLIN ,  Billy VERSO ,  Tony PROUDFOOT

IPC分类号： H04B1/7097 ,  H04B1/709 ,  H04B1/7073 ,  H04B1/7163

CPC分类号： H04B1/7097 ,  G06F17/15 ,  H03D3/00 ,  H04B1/7073 ,  H04B1/709 ,  H04B1/71637 ,  H04L27/38

摘要： In an ultra-wideband (“UWB”) receiver, a received UWB signal is periodically digitized as a series of ternary samples. The samples are continuously correlated with a predetermined preamble sequence to develop a correlation value. When the value exceeds a predetermined threshold, indicating that the preamble sequence is being received, a stream of estimates of the channel impulse response (“CIR”) are developed. When a start-of-frame delimiter (“SFD”) is detected, the best CIR estimate is provided to a channel matched filter (“CMF”) substantially to filter channel-injected noise. The time of arrival of the first arriving path is developed from the stream of CIR estimates.

公开(公告)号：US09698728B2

公开(公告)日：2017-07-04

申请号：US14103386

申请日：2013-12-11

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Anant Shankar Kamath ,  Sreeram N S

IPC分类号： H04L25/02 ,  H03D3/00

CPC分类号： H03D3/00 ,  H04L25/0268

摘要： Several circuits and methods for transferring an input data signal in a digital isolator are disclosed. In an embodiment, the digital isolator includes an isolation element, input circuit, and output circuit. The isolation element includes at least one input node and at least one output node, the input circuit is electronically coupled to the input node and generates modulated differential data signals based on modulating the input data signal on a carrier signal. The input circuit operates using a first supply voltage with respect to a first ground. The output circuit is electronically coupled to the output node to receive the modulated differential data signals, operates using a second supply voltage with respect to a second ground and includes a frequency-shift keying demodulator configured to generate a demodulated data signal in response to detection of presence of the carrier signal. The output circuit further generates an output data signal.

公开(公告)号：US09602094B2

公开(公告)日：2017-03-21

申请号：US14713854

申请日：2015-05-15

申请人： SK hynix Inc.

发明人： Dong-Wook Jang

IPC分类号： H03D3/00 ,  H03K9/08 ,  H03D3/04 ,  H03D3/20 ,  H03L7/099

CPC分类号： H03K9/08 ,  H03D3/00 ,  H03D3/006 ,  H03D3/007 ,  H03D3/04 ,  H03D3/20 ,  H03L7/0992

摘要： A decoding circuit may include a section information generation unit suitable for generating section information corresponding to a section in which an input signal has a first value, a period information generation unit suitable for generating period information corresponding to a period of the input signal, a reference information generation unit suitable for generating reference information by dividing a value of the period information by a given value, and a comparison unit suitable for determining a logic value of the input signal by comparing the section information with the reference information.

公开(公告)号：US20160226475A1

公开(公告)日：2016-08-04

申请号：US14713854

申请日：2015-05-15

申请人： SK hynix Inc.

发明人： Dong-Wook JANG

IPC分类号： H03K9/08

CPC分类号： H03K9/08 ,  H03D3/00 ,  H03D3/006 ,  H03D3/007 ,  H03D3/04 ,  H03D3/20 ,  H03L7/0992

摘要： A decoding circuit may include a section information generation unit suitable for generating section information corresponding to a section in which an input signal has a first value, a period information generation unit suitable for generating period information corresponding to a period of the input signal, a reference information generation unit suitable for generating reference information by dividing a value of the period information by a given value, and a comparison unit suitable for determining a logic value of the input signal by comparing the section information with the reference information.

摘要翻译： 解码电路可以包括：区段信息生成单元，其适于生成对应于输入信号具有第一值的区间的区段信息;适合于生成与输入信号的周期对应的周期信息的周期信息生成单元， 信息生成单元，其适于通过将所述周期信息的值除以给定值来产生参考信息;以及比较单元，其适于通过将所述部分信息与所述参考信息进行比较来确定所述输入信号的逻辑值。

公开(公告)号：US09363118B2

公开(公告)日：2016-06-07

申请号：US14457494

申请日：2014-08-12

申请人： ROHM CO., LTD.

发明人： Takashi Noguchi ,  Tatsuya Iwasaki

IPC分类号： H04L27/12 ,  H04L27/14 ,  H04B5/00 ,  H04L25/02 ,  H03D3/00 ,  H03C3/00

CPC分类号： H04L27/12 ,  H03C3/00 ,  H03D3/00 ,  H04B5/0037 ,  H04B5/0075 ,  H04B5/0093 ,  H04L25/0268 ,  H04L27/14 ,  Y02D70/00

摘要： A non-contact power supply transmitter system 100 transmitting an electric power from a transmitting device (TX) 200 to a receiving device (RX) 300 with a non-contact power supply transmitter method, the TX 200 including: a transmitting coil 202; a driver 204 causing the transmitting coil 202 to generate a power signal of the electromagnetic field; and an FSK modulation unit 240 transmitting an FSK signal Sf through the transmitting coil 202, the RX 300 including: a receiving coil 302; an FSK demodulation unit 330 demodulating the FSK signal Sf received through the receiving coil 302; and a controller 312 inputting the FSK signal demodulated by the FSK demodulation unit 330, the FSK demodulation unit 330 is composed of an analog circuit. The non-contact power supply transmitter system, the receiving device, and the analog circuit can realize a low power, space-saving FSK communication.

摘要翻译： TX 200包括：发射线圈202;发射线圈202;发射线圈202;发射线圈202;发射线圈202;发射线圈202;发射线圈202;发射线圈202;发射线圈202; 驱动器204，使发送线圈202产生电磁场的功率信号; 以及通过发送线圈202发送FSK信号Sf的FSK调制单元240，RX 300包括：接收线圈302; 解调通过接收线圈302接收的FSK信号Sf的FSK解调单元330; 输入由FSK解调单元330解调的FSK信号的控制器312，FSK解调单元330由模拟电路构成。 非接触式电源发射机系统，接收设备和模拟电路可以实现低功耗，节省空间的FSK通信。