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公开(公告)号：US10205620B2
公开(公告)日：2019-02-12
申请号：US15391072
申请日：2016-12-27
申请人： SONY CORPORATION
发明人： Norihito Mihota
摘要： In a transmission circuit that transmits transmission data using an amplitude shift modulation method (ASK modulation method) for changing an amplitude of carrier waves based on the transmission data or a transmission system that uses the transmission circuit, a phase of the carrier waves is changed based on the transmission data to suppress an irradiation of carrier wave components.
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公开(公告)号：US20190044769A1
公开(公告)日：2019-02-07
申请号：US15893089
申请日：2018-02-09
发明人： Timothy M. Hollis
摘要： Methods, systems, and devices for improving uniformity between levels of a multi-level signal are described. Techniques are provided herein to unify peak-to-peak voltage differences between the amplitudes of data transmitted using multi-level signaling. Such multi-level signaling may be configured to increase a data transfer rate without increasing the frequency of data transfer and/or a transmit power of the communicated data. An example of multi-level signaling scheme may be pulse amplitude modulation (PAM). Each unique symbol of the multi-level signal may be configured to represent a plurality of bits of data.
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公开(公告)号：US20190044768A1
公开(公告)日：2019-02-07
申请号：US15924561
申请日：2018-03-19
发明人： SUNG-HA KIM , JUNG HOON CHUN , HWASEOK OH
摘要： A transmitter includes: a pulse amplitude modulation encoder that encodes serial data to multi-bit transmission data of a first data group and a second data group; a first driver that converts first multi-bit transmission data of the first data group to a first differential signal having a first voltage swing width; a second driver that converts second multi-bit transmission data of the second data group to a second differential signal having a second voltage swing width narrower than the first voltage swing width; a first voltage regulator that provides to the second driver a first low swing voltage for generating the second differential signal; a second voltage regulator that provides to the second driver a second low swing voltage less than the first low swing voltage; and a constant current load switch that provides a current path between the first and second voltage regulators depending on deactivation of the second driver.
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公开(公告)号：US10200151B1
公开(公告)日：2019-02-05
申请号：US15063468
申请日：2016-03-07
申请人： Aquantia Corporation
发明人： Ramin Farjadrad , Hossein Sedarat
摘要： A method of transmitting Ethernet data over multiple physical sub-channels is disclosed. The method includes determining one or more noisy sub-channels affected by alien crosstalk; selectively reducing a number of data bits per symbol for transmitted data symbols along the noisy sub-channels; transmitting data along the noisy sub-channels via sparser constellations; and transmitting data along non-noisy sub-channels via denser constellations.
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公开(公告)号：US10193500B2
公开(公告)日：2019-01-29
申请号：US15613705
申请日：2017-06-05
发明人： Dong-su Kim , Ji-seon Paek
摘要： A supply modulator includes: a voltage generator including output terminals respectively outputting voltages having different levels, and configured to select, in response to a selection control signal corresponding to an envelope signal, at least one of the voltages as a selection supply voltage and to generate the selection supply voltage by performing DC-DC conversion on a power supply voltage; and a switch unit configured to connect an output terminal through which the selection supply voltage is output to a power amplifier, in response to a connection control signal corresponding to the envelope signal.
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公开(公告)号：US20190028301A1
公开(公告)日：2019-01-24
申请号：US16116782
申请日：2018-08-29
发明人： Mark Graham Forbes , Shi Cheng , Dmitry Cherniavsky , Chinh Huy Doan , Sohrab Emami , Ricky Keangpo Ho , Nishit Kumar , Patrick Thomas McElwee , James R. Parker , Nitesh Singhal , Ron Zeng
摘要： Disclosed wireless tunneling system includes two wireless tunneling apparatuses that communicate with each other through the wireless link. A local wireless tunneling apparatus is coupled to a local processing apparatus through a wired connection and a remote wireless tunneling apparatus is coupled to the remote processing apparatus through another wired connection. The two processing apparatuses bi-directionally communicate with each other through the wireless link using the two wireless tunneling apparatuses as if the two processing apparatuses were connected through a wired connection.
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公开(公告)号：US20190020514A1
公开(公告)日：2019-01-17
申请号：US15649433
申请日：2017-07-13
申请人： ZTE Corporation
发明人： Junwen Zhang , Jianjun Yu , Yi Cai , Jianyang Shi
摘要： A digital communication technique, implementable in a digital communication system, includes performing a training phase in which the transmitter sends one or more transmissions of pulse amplitude modulation (PAM) signals wherein the PAM signals are modulated using one or more data-to-PAM-symbol mapping schemes, performing a feedback phase in which the transmitter receives a feedback message from a receiver, the feedback message indicative of a change to be made to data-to-PAM-symbol modulation schemes, and implementing a data transmission phase in which data is transmitted using a current PAM symbol mapping scheme based on the feedback message, wherein at least some symbols of the current PAM symbol modulation scheme are unequally spaced with respect to each other.
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公开(公告)号：US10148390B2
公开(公告)日：2018-12-04
申请号：US15632492
申请日：2017-06-26
发明人： Andreas Bisplinghoff
IPC分类号： H03M13/00 , H04L1/00 , H03M13/35 , H03M13/25 , H04L27/18 , H04L27/04 , H04L27/233 , H04L27/36 , H03M13/23 , H04L27/22
摘要： Techniques herein support enhanced multi-rate encoding and decoding of signals in multiple formats. In one embodiment, input data is received at a first device at one of a plurality of data rates. Encoder units are activated to produce streams of encoded input data. The encoder units are configured to operate at the same data rate. Differential encoding operations are performed to produce an encoded output stream. The encoded output stream is modulated for transmission to a second device. In another embodiment, a first device receives an encoded data stream that is transmitted from a second device. The modulated data stream includes encoded data at one of a plurality of data rates. Differential decoding is performed on the encoded data by activating one or more of a plurality of decoder units, where each of the plurality of decoder units is configured to operate at the same rate.
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公开(公告)号：US20180316527A1
公开(公告)日：2018-11-01
申请号：US16029900
申请日：2018-07-09
申请人： Intel Corporation
发明人： Mike Peng Li , Hsinho Wu , Masashi Shimanouchi
摘要： A method includes receiving an n-level Pulse Amplitude Modulated (PAM-n) signal at a receiver from a transmitter via a channel. The method also includes determining one or more sampling times of the PAM-n signal. The method further includes determining one or more slicing levels of the PAM-n signal. The method also includes extracting and decomposing jitter in the PAM-n signal for each slicing level of the PAM-n signal to determine one or more jitter components. The method further includes extracting and decomposing noise in the PAM-n signal for each data level of the PAM-n signal to determine one or more noise components. The method also includes adjusting the receiver, the transmitter, the channel, or any combination thereof, based on the one or more jitter components, the one or more noise components, or both.
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100.发明授权公开(公告)号：US10116416B2
公开(公告)日：2018-10-30
申请号：US15480891
申请日：2017-04-06
申请人： LG ELECTRONICS INC.
发明人： Woo Suk Ko , Sang Chul Moon
IPC分类号： H04L27/36 , H04L1/00 , H03M13/11 , H03M13/25 , H03M13/27 , H03M13/35 , H03M13/00 , H04H20/76 , H04L5/00 , H04L27/26 , H04L27/34 , H04L27/04 , H03M13/15 , H03M13/29
摘要： The present invention relates to a method of transmitting and receiving signals and a corresponding apparatus. One aspect of the present invention relates to a method of extracting PLP from data slices.
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