WO2013157677A1 - Dispositif de correction de la vitesse de communication permettant une communication stable dans un système de communication en série - Google Patents

Dispositif de correction de la vitesse de communication permettant une communication stable dans un système de communication en série Download PDF

Info

Publication number
WO2013157677A1
WO2013157677A1 PCT/KR2012/002963 KR2012002963W WO2013157677A1 WO 2013157677 A1 WO2013157677 A1 WO 2013157677A1 KR 2012002963 W KR2012002963 W KR 2012002963W WO 2013157677 A1 WO2013157677 A1 WO 2013157677A1
Authority
WO
WIPO (PCT)
Prior art keywords
communication
clock
communication speed
value
data
Prior art date
Application number
PCT/KR2012/002963
Other languages
English (en)
Korean (ko)
Inventor
김성규
Original Assignee
Kim Sung-Kyu
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kim Sung-Kyu filed Critical Kim Sung-Kyu
Priority to KR1020147027964A priority Critical patent/KR101727529B1/ko
Priority to PCT/KR2012/002963 priority patent/WO2013157677A1/fr
Publication of WO2013157677A1 publication Critical patent/WO2013157677A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0262—Arrangements for detecting the data rate of an incoming signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/05—Electric or magnetic storage of signals before transmitting or retransmitting for changing the transmission rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter

Definitions

  • the present invention relates to a communication speed calibration device for stable communication in a serial communication system, and more particularly, when communicating using a plurality of communication devices (transmission / reception devices), each communication device is the main (Main) By using the data transmitted from the communication device, a clock value (communication speed calibration clock value) for calibration of the communication speed is obtained, and then receiving and transmitting in accordance with the communication speed calibration clock value, thereby providing stable high speed with no communication error.
  • the present invention relates to a communication speed calibration apparatus that enables communication.
  • serial communication system in the present invention means "serial communication system which starts transmission at the same time as reception of data starts”.
  • asynchronous serial communication apparatus uses a crystal (X-TAL) (crystal oscillator) or a crystal oscillator (X-TAL oscillator) so that a communication error does not occur in high-speed communication, RC oscillator (RC OSC), etc. in low-speed communication Was used.
  • X-TAL crystal oscillator
  • X-TAL oscillator crystal oscillator
  • RC OSC RC oscillator
  • Asynchronous high-speed communication uses high-precision oscillator such as crystal (X-TAL) oscillator, which increases the number of parts and increases the cost.
  • high-precision oscillator such as crystal (X-TAL) oscillator
  • X-TAL crystal
  • RC OSC RC oscillator
  • an object of the present invention is to provide a communication speed calibration device that can easily implement high-precision, stable and high-speed communication when communicating using a plurality of communication devices.
  • each communication device when communicating using a plurality of communication devices (transmission / reception device), each communication device to correct the communication speed using the data transmitted from the main communication device After obtaining the clock value (communication speed calibration clock value) for the control, reception and transmission are controlled using the communication speed calibration clock value.
  • the present invention provides a device for calibrating a communication speed for stable communication in a "serial communication system that starts transmission at the same time as reception of data starts".
  • Communication speed value obtaining means for obtaining;
  • calibration means for generating a communication speed correction clock and providing it to the transmitter / receiver by comparing the obtained communication speed value with the result of the self clock count.
  • the present invention as described above, in the serial communication system to start the transmission at the same time the reception of data, the communication speed of a plurality of communication devices without the use of a high-precision oscillator, such as a crystal (X-TAL) oscillator precisely and freely Since it can be calibrated, there is an effect that it is possible to implement high-speed and stable communication simply and inexpensively.
  • a high-precision oscillator such as a crystal (X-TAL) oscillator
  • each communication device when communicating using a plurality of communication devices (transmitting / receiving devices), each communication device uses a clock value for calibrating a communication speed using data transmitted from a main communication device ( After the transmission speed correction clock value is obtained, reception and transmission are performed in accordance with the transmission speed correction clock value, thereby making it possible to enable stable high speed communication without communication errors.
  • the present invention can significantly reduce the communication error by obtaining a clock value corresponding to the communication speed without taking the clock calibration method in the communication, thereby enabling a more stable high-speed communication.
  • FIG. 1 is an explanatory diagram of a transmission delay of asynchronous communication in a "serial communication system in which reception of data starts and transmission starts at the same time" according to the present invention
  • FIG. 2 is a diagram illustrating a method of obtaining a clock value using data received in a "serial communication system in which data reception is started and transmission starts at the same time" according to the present invention
  • FIG. 3 is a configuration diagram of an apparatus for calibrating a communication speed for stable communication in a "serial communication system in which data reception starts and transmission starts at the same time" according to the present invention.
  • a high precision oscillator such as a crystal (X-TAL) oscillator is used because a precise communication speed is required in order to communicate with a plurality of transmitters and receivers at high speed.
  • X-TAL crystal
  • FIG. 1 is an explanatory diagram of a transmission delay of asynchronous communication in a "serial communication system in which reception of data starts and transmission starts at the same time" according to the present invention.
  • the "transmission method which starts transmission at the same time as the reception of data starts” applies a method of transmitting at its own communication speed to the remaining bits other than the start start bit. That is, according to the present invention, the "transmission method which starts transmission at the same time as the reception of data starts” starts to transmit the start bit of the transmission target data immediately when the start bit is detected from the reception data input from the outside, and the remaining data is It transmits outside at its own communication speed.
  • the reception of bits of data is affected by the previous communication device, but the data interval received is controlled by the main communication device.
  • the difference in the communication speed (frequency difference) of the transmission and reception apparatus and the asynchronous transmission (reception of phase) may be offset by the stop bit. That is, since the next start bit is transmitted immediately after the next start bit is received even before the stop bit is completed (before the transmission is completed), each transmission / reception is performed. Problems due to differences in communication speeds and asynchronous transmission / reception are overcome.
  • FIG. 1 (a) shows the case where the transmission / reception rates match
  • FIG. 1 (b) shows the case where the transmission rate is later than the reception rate
  • FIG. 1 (c) shows the case where the transmission rate is faster than the reception rate.
  • the problem of the difference of is solved by the change (100, 101) of the stop bit.
  • the transmission speed represents the communication speed of the transmitter
  • the reception speed represents the communication speed of the receiver.
  • each transmitting / receiving device is 0.1-0.12nS.
  • the total transmission delay time is 100-120nS and the maximum error is 20nS, so the time to the last transmitting / receiving device is up to 20nS / 1uS (1 / 50,000) error.
  • Can transmit If transmission is stopped at any one transmitting / receiving device, all subsequent transmitting / receiving devices must be added within a time (ie, within 101nS-121nS) of the total transmission delay time of 100-120nS and the 1-bit transmission time of 1 bit. You can see that the communication has been interrupted.
  • calibrating the communication speed at 1uS interval it is possible to calibrate up to 1,000,000 communication speeds per second because up to 1,000,000 calibrations are performed per second.
  • FIG. 2 is a diagram illustrating a method of obtaining a clock value using data received in a "serial communication system in which data reception is started and transmission starts at the same time according to the present invention.”
  • FIG. The clock value is calculated using the section as a synchronization signal.
  • the data rate is calibrated using the data transmitted from the communication device, and subsequent data transmission / reception is performed according to the corrected communication speed (for example, the speed calibration clock value).
  • the main communication device that manages communication uses a high-precision oscillator (eg, a crystal (X-TAL) oscillator) that provides a stable clock, and the rest of the communication device (transmission / reception device). They transmit the data transmitted by the main communication device to the next communication device (transmitter / receiver device) through the serial communication method, and the other communication devices other than the main communication device measure the communication speed using the received data. Obtain the clock value.
  • a high-precision oscillator eg, a crystal (X-TAL) oscillator
  • a clock value is calculated by measuring a time (clock) while counting received data, a method of measuring a time (clock) between separate synchronization signals, and a separate communication rate synchronization.
  • a method of measuring time (clock) using a signal line There is a method of measuring time (clock) using a signal line.
  • the synchronization signal may be encoded and used as a section in which data or data does not enter.
  • FIG. 3 is a configuration diagram of an apparatus for calibrating a communication speed for stable communication in a "serial communication system in which data reception starts and transmission starts at the same time" according to the present invention.
  • the apparatus for calibrating communication speed 32 includes a communication speed value obtaining unit 321 and a communication speed calibrating unit 322.
  • a communication speed value obtaining unit 321 the apparatus for calibrating communication speed 32 includes a communication speed value obtaining unit 321 and a communication speed calibrating unit 322.
  • the communication rate value obtaining unit 321 obtains a communication rate value for calibrating the communication rate from the received received data. As shown in FIG. 3, the synchronization signal detector 3211, the first clock counter 3212, and A speed calculator 3213.
  • the communication rate value obtaining unit 321 counts the interval between the synchronization signal detector 3211 and the detected synchronization signals as its own clock output from the oscillator 30 to detect the synchronization signal from the received data.
  • the first clock counter 3212 which obtains s, and the clock value are divided by its own communication speed (i.e., communication rate of each transmitting / receiving device itself), and the number of clocks per bit (clocks per bit, i.e., Clocks / Bit). It includes a speed calculator 3213 for calculating a communication speed value corresponding to the.
  • the oscillator 30 does not provide a high precision clock like a crystal (X-TAL) oscillator, but simply provides an oscillation signal (clock signal) of a constant frequency.
  • the first clock counter 3212 corrects the communication speed by using the oscillation output output from the oscillator 30 and the detected sync signal.
  • the measurement intervals 200 and 201 between the detected synchronization signals are expressed as " clocks output from the oscillator 30 " To get the clock value.
  • the communication speed value acquisition unit 321 measures the time (clock) while counting the received data (Data) in addition to the above-described method (synchronization signal using method), or the time between separate synchronization signals ( Clock value is calculated by using the method of measuring the clock or the method of measuring the time (clock) by using a separate communication speed synchronization signal line, and using this, the communication speed (for example, expressed as the number of clocks per bit). Can be obtained).
  • the communication speed correction unit 322 generates the communication speed correction clock SIO-CLK by comparing the communication speed obtained by the communication speed value obtaining unit 321 with its own clock. As shown in FIG. Two clock counters 3221 and a comparator 3222.
  • the second clock counter 3221 counts its own clock output from the oscillator 30, and the comparator 3222 counts the communication speed obtained by the communication speed value obtaining unit 321 and the second clock counter 3221.
  • a speed calibration clock (SIO-CLK) is generated and provided to the transmitter / receiver (not shown). Accordingly, the transmitting / receiving unit performs a subsequent data transmission / reception process according to the communication speed correction clock (SIO-CLK), and accordingly, sets the communication speed correction clock to “SIO-CLK” (Serial I / O-Clock). This can be written.
  • the present invention which obtains and uses a value of a clock corresponding to a communication speed in communication, is advantageous in reducing communication errors as compared to a method of calibrating a clock.
  • the value of the clock when used as in the present invention, the value of the clock corresponding to the communication speed can be obtained up to the decimal point, which is very precise and the error divergence rate is very slow.
  • the communication speed of the oscillation device if the communication speed of the oscillation device is 2-3 times or less, it can communicate very stably at any communication speed. Therefore, its own clock does not have to be precise, and the error is reduced as its clock is faster than the communication speed.
  • the main communication device can freely and precisely change the communication speeds of all subsequent communication devices by changing the interval or the communication speed between the synchronization signals.
  • the present invention can be used for high-speed communication for high-speed data transmission / reception and the like in a "serial communication system in which data reception starts and transmission starts at the same time.”

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Communication Control (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

La présente invention concerne un dispositif de correction de la vitesse de communication permettant une communication stable dans un système de communication en série, ledit dispositif de correction de la vitesse de communication devant pouvoir réaliser facilement une communication haute précision, stable, grande vitesse dans le cadre d'une communication utilisant une pluralité de dispositifs de communication. A cet effet, la présente invention concerne un dispositif de correction de la vitesse de communication permettant une communication stable dans un système de communication en série qui démarre la transmission en même temps que commence la réception des données. Le dispositif de correction de la vitesse de communication comprend : une unité d'acquisition d'une valeur de vitesse de communication qui calcule une valeur de vitesse de communication pour la correction de la vitesse de communication à partir de données d'entrée reçues ; et une unité de correction qui génère une horloge de correction de la vitesse de communication par comparaison entre la valeur de vitesse de communication calculée et les résultats de coefficients d'horloge propres, et fournit l'horloge à une unité d'émission/réception.
PCT/KR2012/002963 2012-04-18 2012-04-18 Dispositif de correction de la vitesse de communication permettant une communication stable dans un système de communication en série WO2013157677A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020147027964A KR101727529B1 (ko) 2012-04-18 2012-04-18 직렬통신 시스템에서 안정적 통신을 위한 통신속도 교정 장치
PCT/KR2012/002963 WO2013157677A1 (fr) 2012-04-18 2012-04-18 Dispositif de correction de la vitesse de communication permettant une communication stable dans un système de communication en série

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2012/002963 WO2013157677A1 (fr) 2012-04-18 2012-04-18 Dispositif de correction de la vitesse de communication permettant une communication stable dans un système de communication en série

Publications (1)

Publication Number Publication Date
WO2013157677A1 true WO2013157677A1 (fr) 2013-10-24

Family

ID=49383614

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/002963 WO2013157677A1 (fr) 2012-04-18 2012-04-18 Dispositif de correction de la vitesse de communication permettant une communication stable dans un système de communication en série

Country Status (2)

Country Link
KR (1) KR101727529B1 (fr)
WO (1) WO2013157677A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005042344A (ja) * 2003-07-24 2005-02-17 Hideo Murakami 標準電波を利用する同期発光装置及び同装置を用いる同期発光視線誘導標システム
KR20060027740A (ko) * 2004-09-23 2006-03-28 삼성전자주식회사 안정적인 동기신호 제공 장치 및 방법
KR20060095159A (ko) * 2005-02-28 2006-08-31 삼성전자주식회사 독립적인 클럭 소스를 기준으로 직렬 클럭을 생성하는 직렬변환기와 데이터의 직렬 전송 방법
KR20110121522A (ko) * 2010-04-30 2011-11-07 김성규 통신을 위한 클럭 교정 장치와, 그를 이용한 통신 기반의 조명 모듈 및 정적 디스플레이 시스템

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4449694B2 (ja) * 2004-10-22 2010-04-14 日本ビクター株式会社 動画像予測符号化装置
KR100683582B1 (ko) * 2007-01-04 2007-02-16 주식회사텔레맥스 데이터 전송속도 변환장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005042344A (ja) * 2003-07-24 2005-02-17 Hideo Murakami 標準電波を利用する同期発光装置及び同装置を用いる同期発光視線誘導標システム
KR20060027740A (ko) * 2004-09-23 2006-03-28 삼성전자주식회사 안정적인 동기신호 제공 장치 및 방법
KR20060095159A (ko) * 2005-02-28 2006-08-31 삼성전자주식회사 독립적인 클럭 소스를 기준으로 직렬 클럭을 생성하는 직렬변환기와 데이터의 직렬 전송 방법
KR20110121522A (ko) * 2010-04-30 2011-11-07 김성규 통신을 위한 클럭 교정 장치와, 그를 이용한 통신 기반의 조명 모듈 및 정적 디스플레이 시스템

Also Published As

Publication number Publication date
KR20140147097A (ko) 2014-12-29
KR101727529B1 (ko) 2017-04-18

Similar Documents

Publication Publication Date Title
CN104836630B (zh) Ieee1588时钟同步系统及其实现方法
US11245483B2 (en) Packet processing method and network device
US8447004B2 (en) Estimation and compensation of clock variation in received signal
JP6351889B1 (ja) 通信システム及びスレーブ装置
US9112603B2 (en) Apparatus and method for measuring a delay
US10313100B2 (en) Method and apparatus for automatic skew compensation
JP6227888B2 (ja) 通信システム、同期システム、通信方法
CN107483136A (zh) 一种固定通信设备间的时钟同步方法
CN102638339B (zh) 一种用于实现精确时间同步的方法和装置
WO2013157677A1 (fr) Dispositif de correction de la vitesse de communication permettant une communication stable dans un système de communication en série
JP6205152B2 (ja) シリアル通信システム、受信装置およびシリアル通信方法
US20130346022A1 (en) Physical quantity measuring apparatus and physical quantity measuring method
CN103812553B (zh) 高精度光纤双向时间比对设备时延不对称性标定方法
JP5553500B2 (ja) 時刻同期システム
US20230067697A1 (en) Communication device, communication system, and recording medium
JP2017175309A (ja) 通信システム
CN108809416B (zh) 一种基于短光纤标校的拉远基站时延测量系统及方法
WO2012068982A1 (fr) Procédé et appareil d'étalonnage de terminal et terminal
US11811905B1 (en) System and method of compensating for actual data path latency
KR102022795B1 (ko) 데이터 시작점 자동 측정 방법 및 시스템
US10649486B1 (en) Apparatus and methods for accurate latency measurements in integrated circuits
CN114116579A (zh) 信息处理装置、信息处理系统以及信息处理方法
US9673971B2 (en) Automatic clock calibration of a remote unit using phase drift
US10069513B2 (en) High-speed serial data receiving apparatus
KR101092850B1 (ko) 기지국과 단말기 통신 시스템의 클럭 주파수 옵셋 보상방법 및 장치

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12874581

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20147027964

Country of ref document: KR

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12874581

Country of ref document: EP

Kind code of ref document: A1