Abstract:
PURPOSE: A schizophrenia distinguishing method using Small-worldness and work output is provided to objectively distinguish a normal person and a patient by numerically quantifying the diagnostic criteria. CONSTITUTION: A Small-world network is configured (S10). The synchronization of multiple EEG pairs is used in the configuration. The property of the Small-world network is determined (S20). The Small-worldness is calculated (S30). A subject is distinguished by using the Small-worldness (S40). [Reference numerals] (AA) Motion detection part; (BB) Input detection part; (S10) Memory part; (S20) Toothbrush body; (S30) Communication part; (S40) Power supply part
Abstract:
There is provided a digital phase-locked loop. A digital phase-locked loop according to an aspect of the invention may include: a reference phase accumulation unit outputting a reference sampling phase value; a phase detection unit detecting a phase difference signal; a digital loop filter filtering and averaging the phase difference signal from the phase detection unit; a digitally controlled oscillator generating an oscillation signal having a predetermined frequency; a DOC phase accumulation unit outputting the DCO sampling phase value, and generating a plurality of first to n-th D-FFs having the same frequency and different phases delayed in a sequential manner; and first to n-th D-FFs included in a closed loop including the phase detection unit, the digital loop filter, the digitally controlled oscillator, and the DOC phase accumulation unit, and operating according to the plurality of first to n-th clock signals from the DCO phase accumulation unit, respectively.
Abstract:
PURPOSE: A varactor and a digitally controlled oscillator including the same are provided to obtain small capacitance variation quantity according to a control signal by connecting an NMOS transistor to a PMOS transistor in parallel. CONSTITUTION: A first NMOS(N-type Metal Oxide Semiconductor) transistor(MN1) includes a source and a drain to receive a digital control signal and a gate connected to a first terminal. A second NMOS transistor(MN2) includes a source and a drain to receive a digital control signal and a gate connected to a second terminal. A first PMOS(P-type Metal Oxide Semiconductor) transistor(MP1) includes a source and a drain to receive a digital control signal and a gate connected to the first terminal. A second PMOS transistor(MP2) receives a source and a drain to receive a digital control signal and a gate connected to the second terminal. A N type varactor(300n) and a P type varactor(300p) are connected in parallel with a varactor(300).
Abstract:
올 디지털 피엘엘(All-Digital Phase Locked Loop)은 디지털 제어 발진기, 리타이머, 메인 피드백 경로, 서브 피드백 경로, 기준 위상 누산부, 위상차 검출부 및 디지털 루프 필터를 포함한다. 디지털 제어 발진기는 제어 신호에 응답하여, 제어 신호에 상응하는 주파수의 발진 신호를 생성한다. 리타이머는 발진 신호에 기초하여 기준 클럭을 리타이밍한다. 메인 피드백 경로는 발진 신호의 클럭 횟수를 누산하고 리타이밍된 기준 클럭에 동기하여 발진 신호의 위상 정보를 생성한다. 서브 피드백 경로는 위상차 정보를 스케일링하고 스케일링 된 위상차 정보를 피드백한다. 기준 위상 누산부는 주파수 커맨드 신호에서 피드백된 위상차 정보에 상응하는 값을 감산한 신호를 누산한다. 위상차 검출부는 기준 위상 누산부의 출력 신호와 발진 신호의 위상 정보 사이의 차이를 검출하여 위상차 정보를 생성한다. 디지털 루프 필터는 제어 신호를 생성하기 위해 위상차 정보를 필터링한다.
Abstract:
올 디지털 피엘엘(All-Digital Phase Locked Loop)은 디지털 제어 발진기, 리타이머, 메인 피드백 경로, 서브 피드백 경로, 기준 위상 누산부, 위상차 검출부 및 디지털 루프 필터를 포함한다. 디지털 제어 발진기는 제어 신호에 응답하여, 제어 신호에 상응하는 주파수의 발진 신호를 생성한다. 리타이머는 발진 신호에 기초하여 기준 클럭을 리타이밍한다. 메인 피드백 경로는 발진 신호의 클럭 횟수를 누산하고 리타이밍된 기준 클럭에 동기하여 발진 신호의 위상 정보를 생성한다. 서브 피드백 경로는 위상차 정보를 스케일링하고 스케일링 된 위상차 정보를 피드백한다. 기준 위상 누산부는 주파수 커맨드 신호에서 피드백된 위상차 정보에 상응하는 값을 감산한 신호를 누산한다. 위상차 검출부는 기준 위상 누산부의 출력 신호와 발진 신호의 위상 정보 사이의 차이를 검출하여 위상차 정보를 생성한다. 디지털 루프 필터는 제어 신호를 생성하기 위해 위상차 정보를 필터링한다.
Abstract:
A phase locked loop using a switched-capacitor-network operated by an output clock of a voltage controlled oscillator and a control method thereof are provided to decrease a size of the PLL(Phase Locked Loop) by generating a large resistance using a small-sized capacitor. A phase/frequency detector(210) compares phases of a reference signal and a feedback signal with each other and generates an up or down signal according to whether the reference signal leads the feedback signal or not. A first charge pump(220) outputs a first pumping signal according to the up or down signal. A second charge pump(230) outputs a second pumping signal according to the up or down signal. A delay unit(240) delays the second pumping signal according to a divided clock and outputs a delay signal. A loop filter(250) integrates over the first pumping signal and the delay signal and outputs a control voltage. A VCO(Voltage Controlled Oscillator)(260) outputs an output clock according to the control voltage. A first divider circuit(270) divides the output clock and generates a divided clock. A second divider circuit(280) divides the output clock and generates the feedback signal.
Abstract:
An I/Q(In-phase/Quadrature) modulation transmitter using two PLLs(Phase Locked Loops) is provided to use the PLLs whose power consumption is regular regardless of a data rate, thus power consumption is regular even in a high data rate. A data encoder(402) separates inputted data into I and Q signals to output the separated signals. A reference signal generator generates a signal having a reference frequency. An adder(414) adds an output signal of the first PLL with an output signal of the second PLL, and outputs the added signals as final output signals. The first PLL comprises as follows. The first multi-modulus divider(406) divides the output signal of the first PLL into particular divisive values determined by the I signal. The first phase detector(403) generates a signal corresponding to a phase difference between the signal having the reference frequency and the signal outputted from the first divider(406). The first VCO(Voltage Controlled Oscillator)(405) receives the signal generated from the detector(403), and generates an output signal of a frequency corresponding to a voltage of the signal.