公开(公告)号：US10979260B2

公开(公告)日：2021-04-13

申请号：US16870064

申请日：2020-05-08

Applicant: Rakesh Aggarwal

Inventor： Rakesh Aggarwal

IPC: H03C1/52 ,  H04L27/04

Abstract: A method for transmission of signal is provided, the method comprising the steps of receiving one or more modulating signals, generating one or more modulated sinusoidal carrier waves with zero side bands, including one or more sine wave cycles at carrier frequency that have a predetermined one or more properties, defined for complete cycle at the beginning of each sine cycle at one or more zero voltage crossing points in accordance with the one or more values of the one or more modulating signals. The one or more predetermined properties to change, is selected from group of amplitude, frequency, phase, time period and combinations thereof.

公开(公告)号：US20170272034A1

公开(公告)日：2017-09-21

申请号：US15071042

申请日：2016-03-15

Applicant: Turtle Beach Corporation

Inventor： Brian Alan Kappus ,  Victor Joseph Manzella, JR. ,  Gavin Cutting

IPC: H03C1/52 ,  H04R3/04

CPC classification number: H03C1/52 ,  H03C1/60 ,  H04R3/04 ,  H04R2217/03

Abstract: An audio system includes a processor including an input configured to: receive a baseband audio signal and modulate the baseband audio signal to create a modulated audio signal comprising audio signal frequency components in a first frequency range; clip the modulated audio signal to create a clipped, modulated audio signal the clipped modulated audio signal comprising the audio signal frequency components in the first range and further comprising distortion frequency components outside the first frequency range. The system can further be configured to filter the clipped, modulated audio signal to remove frequency components outside the first frequency to remove distortion components outside that frequency range.

公开(公告)号：US20170250652A1

公开(公告)日：2017-08-31

申请号：US15350460

申请日：2016-11-14

Applicant: Intel Deutschland GmbH

Inventor： Elmar Wagner

IPC: H03C5/00 ,  H03C1/52

CPC classification number: H03C5/00 ,  H03C1/52

Abstract: Some embodiments disclosed herein relate to a transmitter. The transmitter includes a digital modulator adapted to provide a digital modulated RF signal based on a multi-bit representation of data and a multi-bit representation of a carrier wave. A digital-to-analog converter (DAC) is adapted to generate an analog modulated RF signal based on the digital modulated RF signal. A resonant circuit coupled to an output of the DAC and adapted to filter undesired frequency components from the analog modulated RF signal.

公开(公告)号：US09654065B2

公开(公告)日：2017-05-16

申请号：US14653757

申请日：2013-08-02

Applicant: Kabushiki Kaisha Toshiba

Inventor： Yuuki Funahashi ,  Seiki Katayama

IPC: H03C1/52 ,  H03F3/21 ,  H03F3/19 ,  H03F1/52 ,  H03F3/24

CPC classification number: H03F3/211 ,  H03F1/52 ,  H03F3/19 ,  H03F3/24 ,  H03F2200/426 ,  H03F2200/451 ,  H03F2203/21157

Abstract: A digital amplitude modulation device includes power amplifiers, a compositor, a filter, a measurement unit, a protection unit, and a controller. The power amplifiers are arranged in parallel and amplify an input signal in accordance with ON control and stop output in accordance with OFF control. The filter suppresses an unnecessary component to generate an AM signal. The measurement unit measures a measurement value between the filter and a signal output terminal and output the AM signal generated by the filter. The protection unit includes a calculator and a first processing unit. The calculator is formed from an analog circuit and calculates an evaluation value based on the measurement value. The first processing unit is formed from an analog circuit and generates a first control signal by referring to the evaluation value. Upon receiving the first control signal, the controller OFF-controls the power amplifiers.

公开(公告)号：US09055594B2

公开(公告)日：2015-06-09

申请号：US13912623

申请日：2013-06-07

Applicant: Intel IP Corporation

Inventor： Claudio Rey ,  David Harnishfeger ,  Daniel B. Schwartz

IPC: H03C1/52 ,  H04L27/04 ,  H04W72/08

CPC classification number: H04W72/082 ,  H04L27/12

Abstract: A method of generating a transmission signal may include mixing a baseband signal assigned for transmission within a narrow frequency range (“assigned narrow frequency range”) included in a wireless communication channel to produce a shifted signal. The shifted signal may have a shifted frequency that is based on a shift from the assigned narrow frequency range toward a center frequency of the wireless communication channel by a frequency offset. The method may further include shifting a modulation frequency of a modulating signal toward the assigned narrow frequency range frequency range and away from the center frequency by the frequency offset. Additionally, the method may include mixing the shifted signal with the modulating signal to produce a transmission signal having a transmission frequency within the assigned narrow frequency range.

Abstract translation: 产生发送信号的方法可以包括混合被分配用于在无线通信信道中包括的窄频率范围（“分配的窄频范围”）中的传输的基带信号，以产生移位信号。 移位的信号可以具有基于从分配的窄频率范围向无线通信信道的中心频率偏移频率偏移的移位的频率。 该方法还可以包括将调制信号的调制频率向分配的窄频范围频率范围移动并且偏离中心频率的频率偏移。 此外，该方法可以包括将移位的信号与调制信号混合，以产生具有在所分配的窄频率范围内的传输频率的传输信号。

公开(公告)号：US09025430B2

公开(公告)日：2015-05-05

申请号：US13417781

申请日：2012-03-12

Applicant: Jung-Fu Cheng ,  Yang Hu

Inventor： Jung-Fu Cheng ,  Yang Hu

IPC: H04J11/00 ,  H04W4/00 ,  H04L5/12 ,  H04L27/02 ,  H04L27/36 ,  H03C1/52 ,  H03D1/24 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04L1/0005 ,  H04L1/0003 ,  H04L1/0011 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0058

Abstract: A system, method and node for modulation and coding scheme adjustment for a Long Term Evolution (LTE) shared Data Channel. The method determines an actual number of orthogonal frequency division multiplexing (OFDM) symbols, NOS utilized for the shared Data Channel. A modulation order for transmission of data on the shared Data Channel is increased when the actual number of OFDM symbols NOS is less than 11 and decreased when NOS is more than 11. A modulation and coding scheme field (IMCS) of a downlink control information of the shared Data Channel may also be determined. If 0≦IMCS+11−NOS≦28, the modulation order is modified by utilizing a factor of (IMCS+11−NOS) in a standardized modulation scheme. If it is determined that IMCS+11−NOS 28, the modulation order is set to 64 Quadtrative Amplitude Modulation (64QAM).

Abstract translation: 用于长期演进（LTE）共享数据信道的调制和编码方案调整的系统，方法和节点。 该方法确定正交频分复用（OFDM）符号的实际数量，用于共享数据信道的NOS。 当OFDM符号的实际数目NOS小于11时，在共享数据信道上传输数据的调制顺序增加，当NOS大于11时，调制顺序减小。一种下行链路控制信息的调制和编码方案字段（IMCS） 也可以确定共享数据信道。 如果0＆nlE; IMCS + 11-NOS＆nlE; 28，通过在标准化调制方案中利用因子（IMCS + 11-NOS）修改调制阶数。 如果确定IMCS + 11-NOS <0，则将调制阶数设置为正交相移键控（QPSK）。 如果确定IMCS + 11-NOS> 28，则将调制阶数设置为64四乘调制（64QAM）。

公开(公告)号：US09008226B2

公开(公告)日：2015-04-14

申请号：US13869389

申请日：2013-04-24

Applicant: Broadcom Corporation

Inventor： Ahmad Chini ,  Seyed Hamidi ,  Mehmet Vakif Tazebay

IPC: H03C1/52 ,  H04L25/03

CPC classification number: H04L25/03 ,  H04L25/03834

Abstract: A method and apparatus for transmit signal pulse shaping. Automotive vehicle manufacturers that incorporate electronic components into an automotive vehicle must consider emission requirements masks that can be dependent on particular geographic markets as well as the other electronic components contained within a particular automotive vehicle design. A physical layer device is provided that can be configured to operate in multiple emissions configurations using configurable parameters.

Abstract translation: 一种发射信号脉冲整形的方法和装置。 将电子元件并入汽车中的汽车制造商必须考虑可以依赖于特定地理市场以及特定汽车设计中包含的其他电子部件的排放要求掩模。 提供物理层设备，可以将其配置为使用可配置参数在多个排放配置中运行。

公开(公告)号：US08965312B2

公开(公告)日：2015-02-24

申请号：US13706245

申请日：2012-12-05

Applicant: Apple Inc.

Inventor： Scott Krueger ,  Gregory T. Lydon

IPC: H04B1/04 ,  H04W52/02 ,  H04W52/28 ,  H03C1/52 ,  H04W52/34

CPC classification number: H04W52/0209 ,  H04W52/0254 ,  H04W52/0274 ,  H04W52/286 ,  H04W52/34 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146

Abstract: A method for communicating data using a “burst protocol” includes enabling power to transmitters and receivers when needed to balance power consumption with latency and unscheduled communication. A transmitter transmits a plurality of packets indicative of substantially the same payload. Power then may be disabled to the transmitter. A first predetermined time is determined to enable a receiver. A second predetermined time is determined to disable the receiver. Power then may be enabled to the receiver based on the first predetermined time. The payload is output in response to receiving one or more of the plurality of packets. Power to the receiver is disabled based on the second predetermined time.

Abstract translation: 使用“脉冲串协议”传送数据的方法包括当需要时能够对发射机和接收机进行功率来平衡功率消耗与等待时间和非预定的通信。 发射机发送指示基本上相同有效载荷的多个分组。 发射机功率可能被禁用。 确定第一预定时间以使接收机能够使用。 确定第二预定时间以禁用接收器。 可以基于第一预定时间向接收机启用功率。 响应于接收多个分组中的一个或多个分组而输出有效载荷。 基于第二预定时间禁用对接收机的电力。

公开(公告)号：US08948306B2

公开(公告)日：2015-02-03

申请号：US13739505

申请日：2013-01-11

Applicant: HBC Solutions, Inc.

Inventor： Dmitri Borodulin ,  George Cabrera

IPC: H03C1/52 ,  H04L27/04 ,  H03F3/19 ,  H03F3/60 ,  H03F3/72

CPC classification number: H04L27/04 ,  H03F3/19 ,  H03F3/602 ,  H03F3/72

Abstract: Systems and methods are provided for generating a modulated radio frequency (RF) output signal representing a baseband input signal. A digitizer is configured to sample the baseband input signal and produce an N-bit binary digital signal representing a scaled linear function of the signal amplitude. An RF signal source configured to produce an RF carrier signal. N amplifier paths each include at least one amplifier configured to receive the RF carrier signal as an input and provide a corresponding output RF signal. The amplifiers associated with each of the N amplifier paths are active only when a corresponding bit of the digital signal assumes a first value. A power combiner assembly is configured to combine the outputs of the plurality of amplifier paths to deliver the modulated RF output signal.

Abstract translation: 提供了用于产生表示基带输入信号的调制射频（RF）输出信号的系统和方法。 数字转换器配置为对基带输入信号进行采样，并产生表示信号幅度的缩放线性函数的N位二进制数字信号。 RF信号源，被配置为产生RF载波信号。 N个放大器路径各自包括至少一个放大器，其被配置为接收RF载波信号作为输入并提供对应的输出RF信号。 与N个放大器路径中的每一个相关联的放大器仅在数字信号的相应位呈现第一值时有效。 功率组合器组件被配置为组合多个放大器路径的输出以传送调制的RF输出信号。

公开(公告)号：US08868011B2

公开(公告)日：2014-10-21

申请号：US13460513

申请日：2012-04-30

Applicant: Peter V. Wright

Inventor： Peter V. Wright

IPC: H03C1/52

CPC classification number: H03F1/02 ,  H03F1/565 ,  H03F3/19 ,  H03F3/24 ,  H03F2200/324 ,  H03F2200/378 ,  H03F2200/387 ,  H03F2200/391 ,  H03F2200/408 ,  H03H7/40

Abstract: Embodiments of apparatuses, methods, and systems for a radio frequency amplification circuit providing for fast loadline modulation are generally described herein. Other embodiments may be described and claimed.

Abstract translation: 这里通常描述用于提供快速负载线调制的射频放大电路的装置，方法和系统的实施例。 可以描述和要求保护其他实施例。