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Signal receiving device, near field communication system and signal receiving method

A signal receiving device and signal receiving technology, applied in near-field transmission systems, transmission systems, electrical components, etc. Scenario requirements and other issues to achieve the effect of improving sensitivity and compatibility

Inactive Publication Date: 2021-03-30
北京紫光青藤微系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for different communication protocols, the amplitude and frequency of the input signal are different, the signal receiving device in the slave device cannot be demodulated correctly, and the traditional signal receiving device can no longer meet the requirements of the existing multi-scenario

Method used

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  • Signal receiving device, near field communication system and signal receiving method
  • Signal receiving device, near field communication system and signal receiving method
  • Signal receiving device, near field communication system and signal receiving method

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Embodiment Construction

[0045]Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. In the various figures, identical elements are indicated with similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale. Also, some well-known parts may not be shown in the drawings.

[0046] In the following, many specific details of the present invention are described, such as device structures, materials, dimensions, processing techniques and techniques, for a clearer understanding of the present invention. However, the invention may be practiced without these specific details, as will be understood by those skilled in the art.

[0047] It should be understood that the connection / coupling of A and B in the embodiment of the present application means that A and B may be connected in series or in parallel, or A and B may be connected through other devices, which is not limited in the embodiment of the pr...

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Abstract

The invention discloses a signal receiving device, a near field communication system and a signal receiving method. The signal receiving device comprises: an antenna suitable for receiving an antennasignal; a protocol decision circuit which is suitable for providing a control signal according to the amplitude and / or frequency of the antenna signal, wherein the control signal represents whether the antenna signal conforms to a first protocol or not; a first demodulation circuit suitable for demodulating the antenna signal based on a first protocol; and a second demodulation circuit which is suitable for demodulating the antenna signal based on a second protocol, if the control signal is in the first state, the first demodulation circuit is started and the second demodulation circuit is forbidden, and if the control signal is in the second state, the second demodulation circuit is started and the first demodulation circuit is forbidden. According to the signal receiving device, at leasttwo different demodulation circuits are provided, and the corresponding demodulation circuits are selectively conducted according to the types of the antenna signals, so that the signal receiving device can be compatible with various different protocols, and the compatibility of the device is improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and more specifically, to a signal receiving device, a near field communication system and a signal receiving method. Background technique [0002] With the development of wireless communication technology and the continuous improvement of living standards, mobile electronic devices (such as mobile phones, tablet computers, wearable devices, etc.) are becoming more and more popular and have become indispensable communication tools in daily life. [0003] Generally, an electronic device using a wireless communication technology usually includes a master device for transmitting signals and a slave device for receiving signals. In order to communicate between the master device and the slave device, it is necessary to specify a unified communication protocol so that they can work together to realize information exchange and resource sharing. For example, commonly used communic...

Claims

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Application Information

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IPC IPC(8): H04B1/16H04B5/00
CPCH04B1/16H04B5/70
Inventor 黄金煌
Owner 北京紫光青藤微系统有限公司
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