阅读说明：本技术 利用跳频技术的脉冲信号生成器及其工作方法 (Pulse signal generator using frequency hopping technique and operating method thereof ) 是由 金兑昱 李根行 于 2019-11-22 设计创作，主要内容包括：本发明涉及利用跳频技术的脉冲信号生成器及其工作方法,根据一个实施例的脉冲信号生成器包括接收输入信号并以利用开关电容器(Switched Ca pacitor)的跳频(Frequency Hopping)方式输出对应于输入信号的至少一个数字窗的边缘结合部,以及接收输出的数字窗,生成对应于接收的数字窗的脉冲信号的推挽脉冲生成部。本发明能够通过利用基于开关电容器的延迟电路以跳频方式传输脉冲信号,从而在不消耗附加电力的情况下提高无线通信速度及无线通信距离。(The present invention relates to a pulse signal generator using a Frequency Hopping technique and a method for operating the same, and the pulse signal generator according to one embodiment includes an edge combining part receiving an input signal and outputting at least one digital window corresponding to the input signal in a Frequency Hopping (Frequency Hopping) manner using a Switched capacitor (Switched Ca capacitor), and a push-pull pulse generating part receiving the output digital window and generating a pulse signal corresponding to the received digital window. The present invention can improve wireless communication speed and wireless communication distance without consuming additional power by transmitting a pulse signal in a frequency hopping manner using a delay circuit based on a switched capacitor.)

1. A pulse signal generator, comprising:

an edge combining part receiving an input signal and outputting at least one digital window corresponding to the input signal in a frequency hopping manner using a switched capacitor; and

and a push-pull pulse generating unit which receives the output digital window and generates a pulse signal corresponding to the received digital window.

2. The pulse signal generator of claim 1, wherein:

the edge junction has at least one delay cell including a plurality of the switched capacitors.

3. The pulse signal generator of claim 2, wherein:

the edge combining unit delays a rising edge of the input signal by an amount corresponding to a delay time of the at least one delay unit, and outputs the at least one digital window corresponding to the delayed rising edge.

4. The pulse signal generator of claim 2, wherein:

the at least one delay unit respectively controls the work of a plurality of switched capacitors through binary codes to adjust the delay time of the delay unit.

5. The pulse signal generator of claim 4, further comprising:

a counting section that generates the binary code by at least one D flip-flop.

6. The pulse signal generator of claim 1, wherein:

the input signal is a signal in which the time interval between the synchronization pulse and the data pulse is adjusted within one clock period.

7. A method of operating a pulse signal generator, comprising:

a step in which an edge combining section receives an input signal and outputs at least one digital window corresponding to the input signal in a frequency hopping manner using a switched capacitor; and

and a step of receiving the digital window outputted from the push-pull pulse generating section and generating a pulse signal corresponding to the received digital window.

8. The operating method of the pulse signal generator according to claim 7, characterized in that:

the edge junction has at least one delay cell including a plurality of the switched capacitors.

9. The operating method of the pulse signal generator according to claim 8, characterized in that:

in the step of outputting the digital window,

delaying a rising edge of the input signal by an amount corresponding to a delay time of the at least one delay cell, outputting the at least one digital window corresponding to the delayed rising edge.

10. The operating method of the pulse signal generator according to claim 8, characterized in that:

in the step of outputting the digital window,

the counting part generates a binary code corresponding to the input signal through at least one D flip-flop, and the edge combining part controls the operation of the plurality of switched capacitors through the binary code to adjust the delay time of the delay unit.

11. The operating method of the pulse signal generator according to claim 7, characterized in that:

the input signal is a signal in which the time interval between the synchronization pulse and the data pulse is adjusted within one clock period.

Technical Field

The present invention relates to a pulse signal generator and a method for operating the same, and more particularly, to a technical idea of generating and transmitting a pulse signal based on a frequency hopping technique.

Background

Recently, Ultra Wide Band (UWB), one of wireless communication technologies, has been gaining attention. UWB has advantages in ultra-high-speed wireless communication, low output, and efficient use of frequency. UWB technology has been also attracting attention in the industry because it has been proposed to make the application of short-range ultra-high-speed wireless communication possible in life.

UWB technology uses very short pulses of 1ns or less for communication. Basic pulses need to be modulated in order to transmit information using the pulses.

Modulation schemes based On UWB technology include an On-Off Keying (On-Off Keying) scheme, which is a method of transmitting or not transmitting a pulse signal (impulse signal) at a predetermined time interval. The on-off keying scheme is a communication scheme in which a synchronization pulse is transmitted, and when a pulse signal is transmitted after the synchronization pulse, the synchronization pulse is recognized as '1', and when the pulse signal is not transmitted, the synchronization pulse is recognized as '0'. The data speed of this communication is not too high. That is, in the case of the on-off keying method, the Data Rate (Data Rate) is a Data Rate of a Pulse Repetition Frequency (PRF) level, which is a period of transmitting the UWB signal.

In addition, according to the Federal Communications Commission (FCC), the UWB technology is limited to transmit power at 3.1-10.6 GHz with a power spectral density not exceeding-41.3 dBm/MHz.

Therefore, in the actual situation, the UWB technology needs to be applied to a technology that can increase the Amplitude (Amplitude) of a pulse signal to extend a communication distance by moving a transmission Frequency between 3.1GHz to 10.6GHz and transmitting the pulse signal, that is, a Frequency Hopping (Frequency Hopping) technology, while reducing a specified average power density.

In addition, although the conventional pulse signal generator applies a technique of performing frequency hopping by replacing a carrier of a pulse signal with a DCO (digital-Controlled Oscillator), the technique is very sensitive to noise components such as a Parasitic Capacitor (Parasitic Capacitor), and RF design is complicated in actual implementation, and thus an area occupied by elements such as a Chip, an Inductor (Inductor), and an MIM Capacitor (MIM Capacitor) is very large.

[ Prior Art document ]

[ patent document ]

(patent document 1) korean registered patent No. 10-1358902, "data communication, distance measurement, and position tracking using time-to-digital converter-multiple PPM"

Disclosure of Invention

Technical problem

The invention aims to provide a pulse signal generator and an operating method thereof, wherein a pulse signal is transmitted by a frequency hopping method through a delay circuit based on a switched capacitor, so that the wireless communication speed and the wireless communication distance can be improved without consuming additional power.

It is another object of the present invention to provide a pulse signal generator and a method for operating the same, which can transmit data using a time difference between a synchronization pulse and a data pulse, thereby improving a wireless communication speed and a wireless communication distance.

Technical scheme

The pulse signal generator according to one embodiment may include: an edge combining part receiving an input signal and outputting at least one digital window corresponding to the input signal in a Frequency Hopping (Frequency Hopping) manner using a Switched Capacitor (Switched Capacitor); and a push-pull pulse generating unit which receives the output digital window and generates a pulse signal corresponding to the received digital window.

According to an aspect, the edge junction may have at least one Delay cell (Delay cell) including a plurality of switched capacitors.

According to an aspect, the Edge combining part may delay a Rising Edge (Rising Edge) of the input signal by an amount corresponding to a delay time of the at least one delay unit, and output at least one digital window corresponding to the delayed Rising Edge.

According to an aspect, the at least one delay unit may adjust the delay time of the delay unit by respectively controlling the operations of the plurality of switched capacitors through a Binary Code.

According to an aspect, the pulse signal generator may further include a counting part generating a binary code through at least one D flip-Flop (DFlip-Flop).

According to an aspect, the input signal may be a signal that adjusts a time interval between a synchronization Pulse (Sync Pulse) and a Data Pulse (Data Pulse) in one clock period.

The operating method of the pulse signal generator according to one embodiment may include: a step in which an edge combining section receives an input signal and outputs at least one digital window corresponding to the input signal in a Frequency Hopping (Frequency Hopping) manner using a Switched Capacitor (Switched Capacitor); and a step in which the push-pull pulse generating section receives the output digital window and generates a pulse signal corresponding to the received digital window.

According to an aspect, the edge junction may have at least one Delay cell (Delay cell) including a plurality of switched capacitors.

According to an aspect, in the step of outputting the digital window, a Rising Edge (Rising Edge) of the input signal may be delayed by an amount corresponding to a delay time of the at least one delay unit, and the at least one digital window corresponding to the delayed Edge may be output.

According to an aspect, in the step of outputting the digital window, the counting part generates a Binary Code (Binary Code) corresponding to the input signal through at least one D flip-Flop (DFlip-Flop), and the edge combining part may adjust the delay time of the delay unit by respectively controlling the operations of the plurality of switched capacitors through the Binary Code.

According to an aspect, the input signal may be a signal that adjusts a time interval between a synchronization Pulse (Sync Pulse) and a Data Pulse (Data Pulse) in one clock period.

Technical effects

According to one embodiment, it is possible to increase a wireless communication speed and a wireless communication distance without consuming additional power by transmitting a pulse signal in a frequency hopping manner using a delay circuit based on a switched capacitor.

According to one embodiment, it is possible to improve wireless communication speed and wireless communication distance by transmitting data using a time difference between a synchronization pulse and a data pulse.

Drawings

FIG. 1 is a schematic diagram illustrating a pulse signal generator according to one embodiment;

FIG. 2 is a schematic diagram for illustrating an example of the operation of a pulse signal generator according to one embodiment;

FIG. 3 is a schematic diagram illustrating a multiple pulse modulated transmitter according to one embodiment;

fig. 4 is a schematic diagram for explaining an illustration regarding a digital-to-time conversion section according to an embodiment;

FIGS. 5 a-5 b are schematic diagrams illustrating an example of generating a pulse signal using a multiple pulse modulation transmitter according to one embodiment;

FIG. 6 is a schematic diagram for explaining a synchronization apparatus according to an embodiment;

FIG. 7 is a schematic diagram for explaining an illustration regarding an analog processing section according to an embodiment;

fig. 8 is a schematic diagram for explaining an illustration regarding a synchronizing section according to an embodiment;

fig. 9a to 9e are schematic diagrams for explaining an example of performing a synchronization work using a synchronization apparatus according to an embodiment;

fig. 10 is a schematic diagram for explaining an operation method of a pulse signal generator according to an embodiment;

fig. 11 is a schematic diagram for explaining an operation method of a synchronization apparatus according to an embodiment.

Description of the reference numerals

100: the pulse signal generator 110: counting part

120: edge joint 130: push-pull pulse generating section

Detailed Description

Various embodiments herein are described below with reference to the drawings.