A ring voltage control oscillator includes: a conversion unit (100), cascaded multistage delay units (200) and cascaded multistage isolation buffer units (300). The conversion unit (100) receives a voltage signal controlled by the external, converts the voltage signal into a current signal and respectively transmits the current signal to a plurality of delay units (200) and a plurality of isolation buffer units (300). The delay unit (200) comprises two signal input terminals and two signal output terminals; the isolation buffer unit (300) comprises two signal input terminals and two signal output terminals; a first signal input terminal and a second signal input terminal of the isolation buffer unit (300) are correspondingly connected to a first signal output terminal and a second signal output terminal of the same stage of the delay unit (200), respectively; clock signals outputted by first signal output terminals of two adjacent stages of the isolation buffering units (300) have the same phase difference; clock signals outputted by the second signal output terminals of two adjacent stages of the isolation buffering units (300) have the same phase difference.

The present invention provides a continuous time circuit including an amplifier and a RC calibration circuit. In the operations of the continuous time circuit, the amplifier is configured to amplify an input signal to generate an output signal, and the RC calibration circuit is configured to adjust a capacitance of a compensation capacitor of the amplifier according to a RC product measurement result.

The present invention provides a continuous time circuit including an amplifier and a RC calibration circuit. In the operations of the continuous time circuit, the amplifier is configured to amplify an input signal to generate an output signal, and the RC calibration circuit is configured to adjust a capacitance of a compensation capacitor of the amplifier according to a RC product measurement result.

A periodic output generator has a first clock source coupled to a first counter and a second clock source with a frequency greater than the first clock source, the second clock source coupled to a second counter, the first clock source operating continuously, the second clock source enabled when the first clock source reaches a count C1. The second clock source generates an output when a count C2 is reached, and the counters are reset and the process repeats. In another example, a timestamp generator has a high speed clock and a real time clock operative on a low speed clock. The timestamp generator receives an external event, turns on the high speed clock generator and counts high speed clock cycles C until the arrival of the next time stamp, and computes an event timestamp as the next timestamp less c/f, less the startup time of the high speed clock.

A periodic output generator has a first clock source coupled to a first counter and a second clock source with a frequency greater than the first clock source, the second clock source coupled to a second counter, the first clock source operating continuously, the second clock source enabled when the first clock source reaches a count C1. The second clock source generates an output when a count C2 is reached, and the counters are reset and the process repeats. In another example, a timestamp generator has a high speed clock and a real time clock operative on a low speed clock. The timestamp generator receives an external event, turns on the high speed clock generator and counts high speed clock cycles C until the arrival of the next time stamp, and computes an event timestamp as the next timestamp less c/f, less the startup time of the high speed clock.

An apparatus for measuring the capacitance to be measured is proposed. It comprises a first sine-wave oscillator, the measuring oscillator, and a second sine-wave oscillator, the reference oscillator. The frequency of the output signal of the measuring oscillator, hereinafter also referred to as measuring frequency, is dependent on the capacitance to be measured. The frequency of the output signal of the reference oscillator, hereinafter also referred to as reference frequency, is dependent on a reference capacitance. The apparatus comprises a sub-apparatus which produces the ratio of the frequency value of the frequency of the output signal of the reference oscillator and the frequency value of the frequency of the output signal of the measuring oscillator and subsequently squares this ratio to provide the result of this squaring as a measured value.

An apparatus for measuring the capacitance to be measured is proposed. It comprises a first sine-wave oscillator, the measuring oscillator, and a second sine-wave oscillator, the reference oscillator. The frequency of the output signal of the measuring oscillator, hereinafter also referred to as measuring frequency, is dependent on the capacitance to be measured. The frequency of the output signal of the reference oscillator, hereinafter also referred to as reference frequency, is dependent on a reference capacitance. The apparatus comprises a sub-apparatus which produces the ratio of the frequency value of the frequency of the output signal of the reference oscillator and the frequency value of the frequency of the output signal of the measuring oscillator and subsequently squares this ratio to provide the result of this squaring as a measured value.

A Geiger-Mueller charge particle rate measurement system includes a clock management unit in combination with multiple oscillators and rate feedback controller to allow for reactive switching between the different oscillator frequencies to optimize system use. Controlling the clock management unit to send the appropriate frequency (clock signal) to the timers in response to measured rate date from the rate feedback controller facilitates operation at different clock speeds, which helps reduce power consumption when operated at lower speeds.

A Geiger-Mueller charge particle rate measurement system includes a clock management unit in combination with multiple oscillators and rate feedback controller to allow for reactive switching between the different oscillator frequencies to optimize system use. Controlling the clock management unit to send the appropriate frequency (clock signal) to the timers in response to measured rate date from the rate feedback controller facilitates operation at different clock speeds, which helps reduce power consumption when operated at lower speeds.

A method and device for calibrating an RC oscillator, a storage medium and a processor are provided. The method may include: in a first communication time period, a frequency of a first RC oscillator is adjusted at a first communication frequency point; at the first communication frequency point, the frequency of the first RC oscillator is adjusted according to a default gear of the first RC oscillator sequentially, and at least one of a corresponding gear value and a corresponding frequency when the first device end may receive or may not receive data sent by a second device end is recorded; a first target frequency and a first target gear value of the first RC oscillator are determined according to the at least one of a corresponding gear value and a corresponding frequency; and the first device end is controlled to communicate with the second device end at a second communication frequency point which is determined by the first target gear value in a second communication time period.