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Communication circuit and communication method with modulation

A circuit and modulator technology, applied in the direction of modulation carrier system, electrical components, amplitude modulation carrier system, etc., can solve the problems of reducing efficiency and power loss

Active Publication Date: 2018-07-27
NXP BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, additional power loss may be incurred, which will reduce the efficiency
[0005] These and other aspects create challenges for the communication of various applications

Method used

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  • Communication circuit and communication method with modulation
  • Communication circuit and communication method with modulation
  • Communication circuit and communication method with modulation

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Embodiment Construction

[0015] The details of the present invention will be described in detail below through the description of the examples in the accompanying drawings, and various modifications and modifications are also applicable to the present invention. It should be understood that the invention is not limited to particular embodiments described. And, the present invention should cover various modifications, equivalents and transformations falling within the scope of aspects defined by the present invention and its claims. In addition, the "example" referred to throughout the application is for the purpose of illustration only and not for limitation.

[0016] Aspects of the invention are applicable to many different types of devices, systems and methods involving communications, such as wireless communications using modulation mechanisms. Aspects of the invention can be demonstrated by the various examples described above and below, the invention is not limited to the examples described.

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PUM

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Abstract

Aspects of the present invention relate to communication, more particularly a modulated wireless communication. According to one or more embodiments, a rectifier having a plurality of active circuits, running in the first mode and a second mode that consumes less energy than the first mode, to modulate the signal communicated through the following antenna. The first mode is at least semi-active mode, in which at least one of the active circuits transmits a signal. The modulator modulates the waveform of the signal by selectively running at least one of a plurality of active circuits, wherein the impedance of the rectifier is set, and the amplitude of the signal is modulated.

Description

technical field [0001] Embodiments of the invention are directed to communications and related circuitry, as well as modulation. Background technique [0002] Many types of communication circuits utilize modulation schemes to convert data into signals. Wireless data communication is a type of communication circuit in which a modulated signal is demodulated and data is presented. The data is then used and the return communication can also be done via the public circuit. [0003] A wide variety of wireless data communications is performed in various ways, some of which also involve the transfer of wireless energy. For example, systems such as Near Field Communication (NFC) systems, and those using wireless charging standards such as the Qi standard of the Wireless Power Consortium (WPC) and those established by the Power Matters Alliance (PMA), use a constant carrier wave from the transmitter (TX ) sends energy to the receiver (RX). The receiver can also use in-band commun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B5/00H04L27/00H04W4/80
CPCH04B1/401H04W4/80H04B5/70H04B5/24H04L27/06
Inventor 迈克尔·约伦
Owner NXP BV