WO2013157677A1 - Communication speed correcting device for stable communication in serial communication system - Google Patents

Communication speed correcting device for stable communication in serial communication system 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
French (fr)
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 PCT/KR2012/002963 priority Critical patent/WO2013157677A1/en
Priority to KR1020147027964A priority patent/KR101727529B1/en
Publication of WO2013157677A1 publication Critical patent/WO2013157677A1/en

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

The present invention relates to a communication speed correcting device for stable communication in a serial communication system and provides a communication speed correcting device that may easily implement high-precision, stable, high-speed communication, when communicating by using a plurality of communication devices. To this end, the present invention relates to a communication speed correcting device for stable communication in a serial communication system that starts transmission simultaneously when the reception of data starts. The communication speed correcting device includes: a communication speed value obtaining unit for calculating a communication speed value for communication speed correction from received input data; and a correcting unit for generating a communication speed correcting clock through the comparison of the calculated communication speed value with own clock coefficient results and providing the clock to a transmission/reception unit.

Description

직렬통신 시스템에서 안정적 통신을 위한 통신속도 교정 장치Communication speed calibration device for stable communication in serial communication system
본 발명은 직렬통신 시스템에서 안정적 통신을 위한 통신속도 교정 장치에 관한 것으로, 더욱 상세하게는 복수의 통신 장치(송/수신 장치)를 이용하여 통신을 하는 경우, 각각의 통신 장치가 주(Main) 통신 장치로부터 전송된 데이터를 이용하여 통신속도의 교정을 위한 클럭값(통신속도 교정 클럭값)을 구한 후, 그 통신속도 교정 클럭값에 따라 수신 및 송신을 수행함으로써, 통신에러가 없는 안정적인 고속의 통신을 가능하게 하는 통신속도 교정 장치에 관한 것이다.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.
그리고 본 발명에서의 직렬통신 시스템은, "데이터의 수신이 시작됨과 동시에 송신을 시작하는 직렬통신 시스템"을 의미한다.The serial communication system in the present invention means "serial communication system which starts transmission at the same time as reception of data starts".
종래의 비동기 직렬통신 장치는, 고속통신에서는 통신 에러가 발생하지 않도록 크리스탈(X-TAL)(수정 진동자)이나 수정 발진기(X-TAL Oscillator)를 사용하고, 저속통신에서는 RC 발진기(RC OSC) 등을 사용하였다.Conventional 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.
비동기 고속통신에서는 크리스탈(X-TAL) 발진기와 같은 고정밀 발진기를 사용하기 때문에 부품수가 증가하고 비용이 증가한다는 문제가 있는데, 이에 비하여 비동기 저속통신에서는 RC 발진기(RC OSC) 등을 사용함으로써 간단하게 저 비용으로 통신을 할 수 있는 장점이 있지만 고속통신을 하는 것이 곤란하다는 문제가 있다.Asynchronous high-speed communication uses high-precision oscillator such as crystal (X-TAL) oscillator, which increases the number of parts and increases the cost. On the other hand, in asynchronous low-speed communication, using RC oscillator (RC OSC), etc. Although there is an advantage that communication can be performed at a cost, there is a problem that high-speed communication is difficult.
이와 같은 문제를 해결하기 위하여, 1개 비트(bit)의 수신 시간을 측정하는 방식, 1 바이트(Byte)의 수신 시간을 측정하는 방식, 수신되는 어떤 데이터 쌍의 시간을 측정하는 방식 등을 이용하여 통신속도를 교정하는 방법이 개발되었지만, 통신 장치가 연속적으로 연결된 경우에는 각각의 통신 장치의 전송 지연시간을 알기가 어렵기 때문에, 통신속도를 한꺼번에 교정하기가 매우 곤란한 문제가 있다.In order to solve this problem, a method of measuring the reception time of one bit, a method of measuring the reception time of one byte, a method of measuring the time of a certain data pair received, etc. Although a method of calibrating the communication speed has been developed, it is difficult to know the transmission delay time of each communication device when the communication devices are continuously connected, which makes it very difficult to calibrate the communication speed at once.
이러한 문제를 해결하기 위하여, 본 출원인이 특허 출원하여 공개된 "직렬통신을 위한 클럭 교정 장치와, 그를 이용한 직렬통신 기반의 조명 모듈 및 정적 디스플레이 시스템"(특허공개번호 10-2011-0121522, 2011년 11월 07일 공개)은, 통신을 위한 클럭값을 구하여 이용하는 것이 아니라 발진 장치의 클럭을 교정한 후에 그를 이용하여 통신을 하는 것으로, 고속통신에서 통신속도를 자유롭게 바꾸기가 어려운 단점이 있다.In order to solve this problem, the applicant has filed a patent application published "Clock calibration device for serial communication, using a serial communication-based lighting module and static display system using the same" (Patent Publication No. 10-2011-0121522, 2011 (November 07 publication) is not to obtain the clock value for the communication, but to use the communication after calibrating the clock of the oscillation device by using it, it is difficult to freely change the communication speed in high-speed communication.
따라서 본 발명은 복수의 통신 장치를 이용하여 통신을 하는 경우, 고정밀의 안정적인 고속의 통신을 용이하게 구현할 수 있는 통신속도 교정 장치를 제공하는데 그 목적이 있다.Accordingly, 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.
본 발명의 목적들은 이상에서 언급한 목적으로 제한되지 않으며, 언급되지 않은 본 발명의 다른 목적 및 장점들은 하기의 설명에 의해서 이해될 수 있으며, 본 발명의 실시 예에 의해 보다 분명하게 알게 될 것이다. 또한, 본 발명의 목적 및 장점들은 특허 청구 범위에 나타낸 수단 및 그 조합에 의해 실현될 수 있음을 쉽게 알 수 있을 것이다.The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention, which are not mentioned above, can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.
상기 목적을 달성하기 위한 본 발명은 복수의 통신 장치(송/수신 장치)를 이용하여 통신을 하는 경우, 각각의 통신 장치가 주(Main) 통신 장치로부터 전송된 데이터를 이용하여 통신속도의 교정을 위한 클럭값(통신속도 교정 클럭값)을 구한 후, 그 통신속도 교정 클럭값을 이용하여 수신 및 송신을 제어한다.According to the present invention for achieving the above object, 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.
더욱 구체적으로, 본 발명은, "데이터의 수신이 시작됨과 동시에 송신을 시작하는 직렬통신 시스템"에서 안정적인 통신을 위한 통신속도 교정 장치에 있어서, 입력되는 수신 데이터로부터 통신속도 교정을 위한 통신속도 값을 구하기 위한 통신속도 값 획득 수단; 및 상기 구한 통신속도 값과 자체 클럭 계수 결과와의 비교를 통해 통신속도 교정 클럭을 생성하여 송/수신부에 제공하기 위한 교정 수단을 포함한다.More specifically, 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; And 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.
상기와 같은 본 발명은, 데이터의 수신이 시작됨과 동시에 송신을 시작하는 직렬통신 시스템에 있어서, 수정(X-TAL) 발진기와 같은 고정밀 발진기를 사용하지 않고도 다수의 통신 장치들의 통신속도를 정밀하고 자유롭게 교정할 수 있기 때문에, 간단하고 저렴하게 고속의 안정적인 통신을 구현할 수 있는 효과가 있다.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.
즉, 본 발명은 복수의 통신 장치(송/수신 장치)를 이용하여 통신을 하는 경우, 각각의 통신 장치가 주(Main) 통신 장치로부터 전송된 데이터를 이용하여 통신속도의 교정을 위한 클럭값(통신속도 교정 클럭값)을 구한 후, 그 통신속도 교정 클럭값에 따라 수신 및 송신을 수행하기 때문에, 통신에러가 없는 안정적인 고속의 통신을 가능하게 하는 효과가 있다.That is, in the present invention, 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.
특히, 본 발명은 통신에서 클럭 교정 방식을 취하지 않고 통신속도에 해당하는 클럭값을 구하여 사용함으로써, 통신 에러를 현저히 줄일 수 있으며, 이로 인하여 더욱 안정적인 고속통신을 가능하게 하는 효과가 있다.In particular, 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.
도 1은 본 발명에 따라 "데이터의 수신이 시작됨과 동시에 송신을 시작하는 직렬통신 시스템"에서 비동기 통신의 전송 지연에 대한 설명도,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;
도 2는 본 발명에 따라 "데이터의 수신이 시작됨과 동시에 송신을 시작하는 직렬통신 시스템"에서 수신되는 데이터를 이용하여 클럭값을 구하는 방법에 대한 일실시예 설명도,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;
도 3은 본 발명에 따른 "데이터의 수신이 시작됨과 동시에 송신을 시작하는 직렬통신 시스템"에서 안정적 통신을 위한 통신속도 교정 장치에 대한 일실시예 구성도이다.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.
상술한 목적, 특징 및 장점은 첨부된 도면을 참조하여 상세하게 후술되어 있는 상세한 설명을 통하여 보다 명확해 질 것이며, 그에 따라 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명의 기술적 사상을 용이하게 실시할 수 있을 것이다. 또한, 본 발명을 설명함에 있어서 본 발명과 관련된 공지 기술에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에 그 상세한 설명을 생략하기로 한다. 이하, 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시 예를 상세히 설명하기로 한다.The above objects, features, and advantages will become more apparent from the detailed description given hereinafter with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention pertains may share the technical idea of the present invention. It will be easy to implement. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
그리고 명세서 전체에서, 어떤 부분이 다른 부분과 "연결"되어 있다고 할 때 이는 "직접적으로 연결"되어 있는 경우뿐만 아니라 그 중간에 다른 소자를 사이에 두고 "전기적으로 연결"되어 있는 경우도 포함한다. 또한, 어떤 부분이 어떤 구성요소를 "포함" 또는 "구비"한다고 할 때, 이는 특별히 반대되는 기재가 없는 한 다른 구성요소를 제외하는 것이 아니라 다른 구성요소를 더 포함하거나 구비할 수 있는 것을 의미한다.In the specification, when a part is "connected" to another part, this includes not only a "directly connected" but also a "electrically connected" between other elements in between. In addition, when a part is said to "include" or "include" a certain component, it means that it may further include or have other components, without excluding other components, unless specifically stated otherwise. .
일반적으로 비동기식 통신 방식의 경우, 고속으로 다수의 송/수신 장치와 통신을 하기 위해서는 정밀한 통신속도가 필요하기 때문에, 수정(X-TAL) 발진기와 같은 고정밀 발진기를 사용한다.In general, in the asynchronous communication method, 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.
도 1은 본 발명에 따라 "데이터의 수신이 시작됨과 동시에 송신을 시작하는 직렬통신 시스템"에서 비동기 통신의 전송 지연에 대한 설명도이다.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.
비동기 직렬통신에서 데이터를 전송함에 있어서, 예를 들어, 8비트의 데이터마다 1비트의 시작 비트(Start Bit)와 1비트의 종료 비트(Stop Bit)를 삽입하여 전송하는 경우, 본 발명에 따른 "데이터의 수신이 시작됨과 동시에 송신을 시작하는 전송 방식"의 송신은 수신 시작 비트(Start Bit) 이외의 나머지 비트들(bits)에 대해서는 자체 통신속도로 송신하는 방식을 적용한다. 즉, 본 발명에 따른 "데이터의 수신이 시작됨과 동시에 송신을 시작하는 전송 방식"은 외부로부터 입력되는 수신 데이터 중에서 시작 비트가 감지되면 즉시 송신 대상 데이터의 시작 비트의 송신을 시작하고, 나머지 데이터는 자체 통신속도로 외부로 송신하는 것이다.In transmitting data in asynchronous serial communication, for example, when one bit of Start Bit and one bit of Stop Bit are inserted for every 8 bits of data, the " The transmission of 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.
즉, 데이터의 비트의 수신은 이전 통신 장치의 영향을 받지만, 수신되는 데이터 간격은 주(Main) 통신 장치에 의해 제어된다.That is, 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.
상기와 같은 "데이터의 수신이 시작됨과 동시에 송신을 시작하는 전송 방식"의 경우, 도 1에 도시된 바와 같이, 송/수신 장치의 통신속도의 차이(주파수 차이)와 송/수신의 비동기(위상 차이)로 인해 발생하는 전체 통신 구간의 변화가 종료 비트(Stop Bit)에 의해 상쇄될 수 있다. 즉, 종료 비트(Stop Bit)가 완료되기 전(송신이 완료되기 전)이라도 다음 시작 비트(Next Start Bit)가 수신되면 바로 다음 시작 비트(Next Start Bit)가 송신되기 때문에, 각각의 송/수신 장치의 통신속도의 차이와 송/수신의 비동기로 인한 문제가 극복되는 것이다.In the case of the above "transmission method which starts transmission at the same time as the reception of the data", as shown in Figure 1, the difference in the communication speed (frequency difference) of the transmission and reception apparatus and the asynchronous transmission (reception of phase) The change in the entire communication interval caused by the difference) 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.
도 1(a)는 송/수신 속도가 일치하는 경우, 도 1(b)는 송신속도가 수신속도보다 늦은 경우, 도 1(c)는 송신속도가 수신속도보다 빠른 경우를 나타내는데, 여기서 통신 속도의 차이의 문제는 종료 비트(Stop Bit)의 변화(100, 101)에 의하여 해결된다. 여기서, 송신속도는 송신부의 통신속도를 나타내고, 수신속도는 수신부의 통신속도를 나타낸다.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, and 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. Here, the transmission speed represents the communication speed of the transmitter, and the reception speed represents the communication speed of the receiver.
"데이터의 수신이 시작됨과 동시에 송신"을 시작하게 되면 약간의 지연(전송지연)은 있지만 통신속도와는 상관없이 정확하게 시간을 전달할 수 있다. 이와 달리, "데이터 수신 후 송신"을 하게 되면 전송지연 이외에도, 통신속도 오차나 송/수신 위상 차이 등이 전송속도에 영향을 주기 때문에 정확하게 시간을 전달하기가 어렵다. 예를 들어, 각각 1Gbps의 전송속도를 갖는 1,000개의 "데이터의 수신이 시작됨과 동시에 송신을 시작하는 전송 방식"의 송/수신 장치를 이용한 통신 시스템에서, 각각의 송/수신 장치는 0.1-0.12nS의 전송 지연으로 1uS마다 통신속도를 교정하는 경우, 전체 전송지연 시간은 100-120nS로 최대 오차는 20nS가 되는 바, 최대 20nS/1uS(1/50,000)의 오차로 마지막 송/수신 장치까지 시간을 전송할 수 있다. 어느 한 송/수신 장치에서 송신이 중단되면 전체 전송지연 시간인 100-120nS와 1비트 정도의 전송 시간인 1nS를 합산한 시간 이내(즉, 101nS-121nS 이내)에 이후의 모든 송/수신 장치가 통신이 중단됐음을 알 수 있다. 그리고 1uS 간격으로 통신속도를 교정하는 경우에는 최대 초당 1,000,000회의 교정이 이루어지기 때문에 초당 1,000,000회의 통신속도 교정을 수행할 수 있으며, 따라서 주변/자체 온도의 변화나 전압의 변화 등과 같이 여러 가지 변화로 인하여 발진기의 발진 주파수가 빠르게 변경되는 경우에도 능동적으로 대처할 수 있다. 즉, 통신속도 교정 후 다음의 1uS동안만 통신 에러(error)가 나지 않을 정도로 안정되면 된다.If you start the "transmit at the same time as the reception of data starts", there is a slight delay (transmission delay), but the time can be transmitted accurately regardless of the communication speed. On the contrary, when the data is transmitted after receiving, it is difficult to accurately transmit time because the transmission speed error or the transmission / reception phase difference affects the transmission speed in addition to the transmission delay. For example, in a communication system using a transmitting / receiving device of 1,000 " transmission schemes that start receiving data at the same time that data starts to be transmitted ", each having a transmission rate of 1 Gbps, each transmitting / receiving device is 0.1-0.12nS. In case of calibrating the communication speed every 1uS due to the transmission delay, 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. In case of 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. Therefore, due to various changes such as changes in ambient / self temperature or voltage, etc. Even if the oscillation frequency of the oscillator changes rapidly, it can cope actively. That is, it is only necessary to stabilize the communication error (error) for the next 1uS after the communication speed is corrected.
도 2는 본 발명에 따라 "데이터의 수신이 시작됨과 동시에 송신을 시작하는 직렬통신 시스템"에서 수신되는 데이터를 이용하여 클럭값을 구하는 방법에 대한 일실시예 설명도로서, 데이터가 일정 시간동안 없는 구간을 동기신호로 이용하여 클럭값을 구하는 방식을 나타내고 있다.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.
본 발명은, 복수의 "데이터의 수신이 시작됨과 동시에 송신을 시작하는 통신 장치"(간단히 "송/수신 장치"라 하기로 함)를 이용하여 통신을 하는 경우, 각각의 통신 장치가 주(Main) 통신 장치로부터 전송된 데이터를 이용하여 통신속도를 교정하고, 그 교정된 통신속도(예를 들어, 통신속도 교정 클럭값)에 따라 이후의 데이터 송/수신을 수행한다.According to the present invention, when communicating using a plurality of " communication devices that start transmission at the same time that data reception starts, " ) 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).
즉, 본 발명에서는 통신을 주관하는 주(Main) 통신 장치만이 안정적인 클럭을 제공하는 고정밀 발진기(예를 들면, 수정(X-TAL) 발진기)를 사용하고, 나머지 통신 장치(송/수신 장치)들은 주 통신 장치가 전송한 데이터를 직렬통신 방식을 통하여 후단의 통신 장치(송/수신 장치)에 전달하는데, 이때 주(Main) 통신 장치가 아닌 나머지 통신 장치들은 수신 데이터를 이용하여 통신속도를 측정하여 클럭값을 구한다.That is, in the present invention, only 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.
본 발명에 따라 클럭값을 구하는 방식에는, 수신되는 데이터(Data)를 계수하는 동안의 시간(클럭)을 측정하는 방식, 별도의 동기신호간의 시간(클럭)을 측정하는 방식, 별도의 통신속도 동기신호 선을 이용하여 시간(클럭)을 측정하는 방식 등이 있다. 여기서, 동기신호로는 데이터 또는 데이터가 들어오지 않는 구간을 부호화하여 이용할 수 있다.According to the present invention, 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. There is a method of measuring time (clock) using a signal line. In this case, the synchronization signal may be encoded and used as a section in which data or data does not enter.
도 3은 본 발명에 따른 "데이터의 수신이 시작됨과 동시에 송신을 시작하는 직렬통신 시스템"에서 안정적 통신을 위한 통신속도 교정 장치에 대한 일실시예 구성도이다.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.
본 발명에 따른 통신속도 교정 장치(32)는 도 3에 도시된 바와 같이, 통신속도 값 획득부(321) 및 통신속도 교정부(322)를 포함하여 이루어진다. 이하, 각각의 구성요소를 상세히 설명하면 다음과 같다.As shown in FIG. 3, the apparatus for calibrating communication speed 32 includes a communication speed value obtaining unit 321 and a communication speed calibrating unit 322. Hereinafter, each component will be described in detail.
통신속도 값 획득부(321)는 입력되는 수신 데이터로부터 통신속도 교정을 위한 통신속도 값을 구하는 것으로서, 도 3에 도시된 바와 같이, 동기신호 검출기(3211), 제1 클럭 계수기(3212), 및 속도 산출기(3213)를 포함하여 이루어진다.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.
즉, 통신속도 값 획득부(321)는 수신 데이터로부터 동기신호를 검출하는 동기신호 검출기(3211), 그 검출된 동기신호들 사이의 구간을 발진기(30)에서 출력되는 자체 클럭으로 계수하여 클럭값을 구하는 제1 클럭 계수기(3212), 및 클럭값을 자체 통신속도(즉, 각각의 송/수신 장치 자체의 통신속도)로 나누어, 비트당 클럭 수(1비트당 클럭 수, 즉 Clocks/Bit)에 해당하는 통신속도 값을 산출하는 속도 산출기(3213)를 포함한다. 여기서, 발진기(30)는 수정(X-TAL) 발진기 등과 같이 고정밀 클럭을 제공하는 것이 아니라, 단순히 일정한 주파수의 발진신호(클럭신호)를 제공하는 것이다.That is, 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. Here, 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.
더욱 상세하게, 동기신호 검출기(3211)가 수신 데이터로부터 동기신호를 검출하는 경우, 제1 클럭 계수기(3212)는 발진기(30)에서 출력되는 발진 출력과 그 검출된 동기신호를 이용하여 통신속도 교정을 위한 클럭(Clock)값을 구하되, 특히 그 검출된 동기신호들 사이의 측정구간(200, 201)을 「발진기(30)로부터 출력되는 클럭(Clock)」("자체 클럭"이라 표현하기로 함)으로 계수하여 클럭값을 구한다.More specifically, when the sync signal detector 3211 detects a sync signal from the received data, the first clock counter 3212 corrects the communication speed by using the oscillation output output from the oscillator 30 and the detected sync signal. In order to calculate a clock value, 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.
한편, 통신속도 값 획득부(321)는 상기와 같은 방식(동기신호 이용 방식) 이외에도 수신되는 데이터(Data)를 계수하는 동안의 시간(클럭)을 측정하는 방식, 또는 별도의 동기신호간의 시간(클럭)을 측정하는 방식, 또는 별도의 통신속도 동기신호 선을 이용하여 시간(클럭)을 측정하는 방식 등을 이용하여 클럭값을 구하고, 이를 이용하여 통신속도(예를 들어, 비트당 클럭 수로 표현될 수 있음)를 구할 수 있다.On the other hand, 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).
다음으로, 통신속도 교정부(322)를 설명하기로 한다.Next, the communication speed correction unit 322 will be described.
통신속도 교정부(322)는 통신속도 값 획득부(321)에서 구한 통신속도와 자체 클럭의 비교를 통해 통신속도 교정 클럭(SIO-CLK)을 생성하는 것으로서, 도 3에 도시된 바와 같이, 제2 클럭 계수기(3221) 및 비교기(3222)를 포함하여 이루어진다.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.
제2 클럭 계수기(3221)는 발진기(30)에서 출력되는 자체 클럭을 계수하는 것이고, 비교기(3222)는 통신속도 값 획득부(321)에서 구한 통신속도와 제2 클럭 계수기(3221)에 의한 계수 결과의 비교를 통해 통신속도 교정 클럭(SIO-CLK)을 생성하여 송/수신부(도면에 도시되지 않음)에 제공한다. 이에 따라, 송/수신부는 통신속도 교정 클럭(SIO-CLK)에 따라 이후의 데이터 송/수신 과정을 수행하는 바, 그에 따라 통신속도 교정 클럭을 "SIO-CLK"(Serial I/O - Clock)이라 표기할 수 있다.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. By comparing the results, 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.
상기와 같이, 통신에서 통신속도에 해당하는 클럭(Clock)의 값을 구하여 사용하는 본 발명은, 클럭(Clock)을 교정하는 방법에 비하여, 통신 오차를 줄이는데 유리하다. 특히, 본 발명과 같이 클럭(Clock)의 값을 이용하면, 통신속도에 해당하는 클럭의 값을 소수점 이하까지 구할 수 있어 매우 정밀하고, 오차의 발산 속도가 매우 늦게 된다. 특히, 발진 장치의 2-3배 이하의 통신속도이면 어떤 통신속도에도 매우 안정적으로 통신할 수 있다. 따라서 자체 클럭이 정밀하지 않아도 되고, 자체 클럭이 통신속도보다 빠를수록 오차가 줄어든다. 그리고 본 발명은 주(Main) 통신 장치가 동기신호 사이의 구간이나 통신속도를 변경함으로써, 이후의 모든 통신 장치의 통신속도를 동시에 자유롭고 정밀하게 변경할 수 있다.As described above, 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. In particular, when the value of the clock is 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. In particular, 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. In addition, according to the present invention, 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.
이러한 클럭 교정 방식을 "데이터의 수신이 시작됨과 동시에 송신을 시작하는 전송 방식"이 아닌 다른 전송 방식에 이용하기 위해서는 "클럭 교정을 위한 시간을 어떻게 동시에 정확하게 전달할 수 있는지"의 문제를 해결하면 된다.In order to use the clock correction scheme for a transmission scheme other than the "transmission scheme that starts transmitting at the same time as the reception of data starts", it is necessary to solve the problem of how to accurately and simultaneously transmit the time for clock correction.
이상과 같이 본 발명은 비록 한정된 실시 예와 도면에 의해 설명되었으나, 본 발명은 상기의 실시 예에 한정되는 것은 아니며, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면 이러한 기재로부터 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 다양한 치환, 변형 및 변경이 가능하다.As described above, although the present invention has been described with reference to the limited embodiments and the drawings, the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains should understand the present invention. Various substitutions, modifications, and changes can be made without departing from the spirit.
그러므로 본 발명의 범위는 설명된 실시 예에 국한되어 정해져서는 아니 되며, 후술하는 특허청구범위뿐만 아니라 이 특허청구범위와 균등한 것들에 의해 정해져야 한다.Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.
본 발명은 "데이터의 수신이 시작됨과 동시에 송신을 시작하는 직렬통신 시스템"에서 고속 데이터 송/수신을 위한 고속 통신 등에 이용될 수 있다.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."

Claims (6)

  1. "데이터의 수신이 시작됨과 동시에 송신을 시작하는 직렬통신 시스템"에서 안정적인 통신을 위한 통신속도 교정 장치에 있어서,A communication speed calibration apparatus for stable communication in a "serial communication system that starts transmission at the same time as the reception of data starts,"
    입력되는 수신 데이터로부터 통신속도 교정을 위한 통신속도 값을 구하기 위한 통신속도 값 획득 수단; 및Communication rate value obtaining means for obtaining a communication rate value for communication rate calibration from the received received data; And
    상기 구한 통신속도 값과 자체 클럭 계수 결과와의 비교를 통해 통신속도 교정 클럭을 생성하여 송/수신부에 제공하기 위한 교정 수단Calibration 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.
    을 포함하는 통신속도 교정 장치.Communication speed calibration device comprising a.
  2. 제 1 항에 있어서,The method of claim 1,
    상기 통신속도 값 획득 수단은,The communication rate value obtaining means,
    상기 수신 데이터로부터 검출되는 동기신호들 사이의 구간을 자체 클럭으로 계수하여 클럭값을 구하고, 상기 구한 클럭값과 자체 통신속도를 이용하여 통신속도 값을 산출하는 통신속도 교정 장치.And calculating a clock value by counting a section between the synchronization signals detected from the received data with its own clock, and calculating a communication speed value using the obtained clock value and its own communication speed.
  3. 제 2 항에 있어서,The method of claim 2,
    상기 통신속도 값 획득 수단은,The communication rate value obtaining means,
    상기 수신 데이터로부터 동기신호를 검출하기 위한 동기신호 검출 수단;Synchronizing signal detecting means for detecting a synchronizing signal from the received data;
    상기 검출된 동기신호들 사이의 구간을 발진기에서 출력되는 자체 클럭으로 계수하여 클럭값을 구하기 위한 제1 클럭 계수 수단; 및First clock counting means for counting a section between the detected synchronization signals by its own clock output from an oscillator to obtain a clock value; And
    상기 구한 클럭값을 자체 통신속도로 나누어, 비트당 클럭 수에 해당하는 통신속도 값을 산출하기 위한 산출 수단Calculating means for calculating a communication rate value corresponding to the number of clocks per bit by dividing the obtained clock value by its own communication rate
    을 포함하는 통신속도 교정 장치.Communication speed calibration device comprising a.
  4. 제 3 항에 있어서,The method of claim 3, wherein
    상기 제1 클럭 계수 수단은,The first clock counting means,
    수신되는 데이터(Data)를 계수하는 동안의 시간을 측정하는 방식, 별도의 동기신호간의 시간을 측정하는 방식, 별도의 통신속도 동기신호 선을 이용하여 시간을 측정하는 방식 중 어느 하나의 계수 방식을 이용하는 통신속도 교정 장치.Counting method is any one of a method of measuring time while counting received data, a method of measuring time between separate synchronization signals, and a method of measuring time using a separate communication speed synchronization signal line. Communication speed calibration device to use.
  5. 제 3 항에 있어서,The method of claim 3, wherein
    상기 동기신호는,The synchronization signal is,
    데이터 또는 데이터가 들어오지 않는 구간을 부호화한 데이터에 의하여 표현되는 통신속도 교정 장치.Communication speed correction device represented by the data encoded by the data or the section in which no data.
  6. 제 3 항에 있어서,The method of claim 3, wherein
    상기 교정 수단은,The calibration means,
    상기 발진기에서 출력되는 자체 클럭을 계수하기 위한 제2 클럭 계수 수단; 및Second clock counting means for counting its own clock output from the oscillator; And
    상기 산출된 통신속도 값과 상기 제2 클럭 계수 수단에 의한 계수 결과의 비교를 통해 통신속도 교정 클럭을 생성하여 상기 송/수신부에 제공하기 위한 비교 수단Comparison means for generating a communication speed correction clock and providing it to the transmitting / receiving unit by comparing the calculated communication speed value with the counting result by the second clock counting means;
    을 포함하는 통신속도 교정 장치.Communication speed calibration device comprising a.
PCT/KR2012/002963 2012-04-18 2012-04-18 Communication speed correcting device for stable communication in serial communication system WO2013157677A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/KR2012/002963 WO2013157677A1 (en) 2012-04-18 2012-04-18 Communication speed correcting device for stable communication in serial communication system
KR1020147027964A KR101727529B1 (en) 2012-04-18 2012-04-18 Communication speed correcting device for stable communication in serial communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2012/002963 WO2013157677A1 (en) 2012-04-18 2012-04-18 Communication speed correcting device for stable communication in serial communication system

Publications (1)

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

Family

ID=49383614

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/002963 WO2013157677A1 (en) 2012-04-18 2012-04-18 Communication speed correcting device for stable communication in serial communication system

Country Status (2)

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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005042344A (en) * 2003-07-24 2005-02-17 Hideo Murakami Synchronous light-emitting device using standard wave, and synchronous light-emitting delineator system using the device
KR20060027740A (en) * 2004-09-23 2006-03-28 삼성전자주식회사 Apparatus and method for providing the clock signal
KR20060095159A (en) * 2005-02-28 2006-08-31 삼성전자주식회사 Serializer of generating serial clock based on independent clock source and the method of data serial transmission
KR20110121522A (en) * 2010-04-30 2011-11-07 김성규 Apparatus of clock calibration for serial communication, and illumination module and static display system based serial communication using the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4449694B2 (en) * 2004-10-22 2010-04-14 日本ビクター株式会社 Video predictive coding apparatus
KR100683582B1 (en) * 2007-01-04 2007-02-16 주식회사텔레맥스 Data transmission speed transferring apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005042344A (en) * 2003-07-24 2005-02-17 Hideo Murakami Synchronous light-emitting device using standard wave, and synchronous light-emitting delineator system using the device
KR20060027740A (en) * 2004-09-23 2006-03-28 삼성전자주식회사 Apparatus and method for providing the clock signal
KR20060095159A (en) * 2005-02-28 2006-08-31 삼성전자주식회사 Serializer of generating serial clock based on independent clock source and the method of data serial transmission
KR20110121522A (en) * 2010-04-30 2011-11-07 김성규 Apparatus of clock calibration for serial communication, and illumination module and static display system based serial communication using the same

Also Published As

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

Similar Documents

Publication Publication Date Title
CN104836630B (en) IEEE1588 clock synchronization system and implementation method therefor
US20200195363A1 (en) Packet Processing Method and Network Device
US8447004B2 (en) Estimation and compensation of clock variation in received signal
JP6351889B1 (en) Communication system and slave device
US9112603B2 (en) Apparatus and method for measuring a delay
US10313100B2 (en) Method and apparatus for automatic skew compensation
JP6227888B2 (en) Communication system, synchronization system, and communication method
CN114567926B (en) Clock synchronization and trigger device for wireless distributed test system
CN107483136A (en) A kind of clock synchronizing method between fixed communication apparatus
CN102638339B (en) Method and device for realizing precision time synchronization
WO2013157677A1 (en) Communication speed correcting device for stable communication in serial communication system
JP6205152B2 (en) Serial communication system, receiving apparatus and serial communication method
US20130346022A1 (en) Physical quantity measuring apparatus and physical quantity measuring method
CN103812553B (en) High-precision optical fiber two-way Time transfer receiver equipment delay unsymmetry scaling method
JP5553500B2 (en) Time synchronization system
US20230067697A1 (en) Communication device, communication system, and recording medium
JP2017175309A (en) Communication system
CN108809416B (en) A kind of remote base station latency measurement system and method based on short fiber calibration
WO2012068982A1 (en) Method and apparatus for terminal calibration and terminal
US11811905B1 (en) System and method of compensating for actual data path latency
KR102022795B1 (en) Method and system for measuring data start point automatically
US10649486B1 (en) Apparatus and methods for accurate latency measurements in integrated circuits
CN114116579A (en) Information processing apparatus, information processing system, and information processing method
US9673971B2 (en) Automatic clock calibration of a remote unit using phase drift
US10069513B2 (en) High-speed serial data receiving apparatus

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