Data frame header sending method and sending device

A data frame header and data frame technology, applied in the electronic field, can solve the problems of communication efficiency reduction, inability to power supply/charging, inconvenience of electronic equipment, etc.

Active Publication Date: 2020-08-21
TENDYRON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When two electronic devices communicate, the sending clock at the sending end and the receiving clock at the receiving end may be different. When the frequency difference between the sending clock and the receiving clock is too large, it will cause sampling misalignment at the receiving end, resulting in receiving errors and lower communication efficiency.
[0003] In addition, when only two wires are used for communication between electronic devices, power supply / charging is usually not possible during the communication process, and other external power sources are required, which brings great inconvenience to the use of electronic devices. Therefore, There is an urgent need in the art for a method of power supply / charging when only two wires are used for communication

Method used

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  • Data frame header sending method and sending device
  • Data frame header sending method and sending device
  • Data frame header sending method and sending device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] This embodiment provides a transmission parameter acquisition method, which can be applied in communication between master and slave devices. The device that obtains the transmission parameters can be a slave device or a master device. The device serving as the master device may be, for example, a terminal, and the device serving as the slave device may be, for example, an electronic payment device (for example, an electronic signature tool key, a smart card, a key-card combination device, etc.).

[0062] Figure 1A The flow chart of the transmission parameter acquisition method provided by the embodiment of the present invention, such as Figure 1A As shown, the transmission parameter acquisition method provided in this embodiment mainly includes the following steps:

[0063] Step 101, acquire the waveform sequence characteristics of N waveform sequences formed by preset X level transitions, where N is a positive integer, X is a positive integer greater than 1, and the...

Embodiment 2

[0089] This embodiment provides a terminal, which corresponds to the transmission parameter acquisition method in Embodiment 1 one by one, and will not be repeated here, but only briefly explained. In an optional implementation manner of this embodiment, the For specific operations performed by each unit in the terminal, reference may be made to Embodiment 1.

[0090] In this embodiment, the terminal may be a PC, an iPAD, a mobile phone, an electronic signature tool key, a smart card, or a key-card-in-one device, and the like.

[0091] Figure 2A is a schematic structural diagram of an optional terminal 200 in this embodiment, the terminal includes: a detection module 201, an acquisition module 202, and a duration identification module 203, wherein:

[0092] The acquiring module 202 is configured to acquire waveform sequence characteristics of N waveform sequences formed by preset X level jumps, wherein N is a positive integer, X is a positive integer greater than 1, and the ...

Embodiment 3

[0111] This embodiment provides a method for sending a data frame header, which can be applied in communication between master and slave devices. The device sending the data frame header can be a master device or a slave device. The device serving as the master device may be, for example, a terminal, and the device serving as the slave device may be, for example, an electronic payment device (for example, an electronic signature tool key, a smart card, a key-card combination device, etc.).

[0112] Figure 3A The flow chart of the data frame header transmission method provided by the embodiment of the present invention, the data frame header method corresponds to the transmission parameter acquisition method provided in Embodiment 1, how to obtain the transmission parameter method through the data frame header and the embodiment 1 Please refer to Example 1 for relevant contents, and no specific description is given in this example. Such as Figure 3A As shown, the sending m...

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PUM

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Abstract

The invention discloses a data frame header sending method and a sending device. A transmission parameter acquisition method includes: acquiring N waveform sequences corresponding to a preset data frame header, wherein each waveform sequence is respectively one of the following: a first waveform sequence, a second waveform sequence, and a third waveform sequence, and all the waveform sequences have the following waveform sequence characteristics: transmission duration of all the waveform sequences is the same and inversely proportional to baud rates, the first waveform sequence starts and is with a high level for a preset time, then jumps to a low level and ends with the high Level, and total duration occupied by the low level does not vary with the baud rates, the second waveform sequence continues to be with the high level, and the third waveform sequence starts with the low level and ends with the high level, and total duration occupied by the low level does not vary with the baud rates; obtaining X times of level jumping in the N waveform sequences according to the characteristics of all the waveform sequences, wherein all the X times of level jumping are jumping from the high level to the low level; and controlling a level of a sending port to carry out level varying according to the X times of level jumping to send the data frame header.

Description

technical field [0001] The present invention relates to the field of electronic technology, in particular to a data frame header sending method and sending device. Background technique [0002] The serial communication method between electronic devices is usually transmitted character by character, each character is transmitted one by one, and when transmitting a character, it always starts with a "start bit" and ends with a "stop bit" , there is no fixed time interval requirement between characters. When two electronic devices communicate, the sending clock of the sending end and the receiving clock of the receiving end may be different. When the frequency difference between the sending clock and the receiving clock is too large, it will cause sampling misalignment at the receiving end, resulting in receiving errors and lower communication efficiency. [0003] In addition, when only two wires are used for communication between electronic devices, power supply / charging is u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/42
CPCG06F13/4282
Inventor 李东声
Owner TENDYRON CORP
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