Superregenerative receiving device and method

Abstract

The invention provides a superregenerative receiving device. An extinguishing controller of the device detects that the amplitude of the acquired oscillating signal reaches the preset amplitude and outputs control signals respectively to an oscillator and a delayer. The oscillator adjusts the non-oscillating time according to the frequency of the received external signal output by an antenna and the control signals output by the extinguishing controller and outputs the oscillating signal of the natural frequency. The delayer adjusts the width of the delay signal according to the control signals output by the extinguishing controller. A time width-amplitude converter converts the width of the delay signal output by the delayer into the sawtooth signal corresponding to the amplitude and outputs the sawtooth signal to a peak detector. The peak detector detects the peak of the amplitude of the received sawtooth signal and outputs the high / low level indicating the amplitude of the sawtoothwave to a shaping circuit. The shaping circuit shapes and filters the received signal and outputs the digital signal. The invention also provides a superregenerative receiving method. The device and the method can improve the data transmission speed.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a super-regenerative receiving device and method. Background technique [0002] In the communication field, the super regenerative receiving device is mainly used in low power consumption, short distance, low speed wireless data transmission. The transmitter transmits digital signals at a certain carrier frequency through its antenna, and the external signal received by the antenna in the super regenerative receiving device is a mixed signal containing the signal transmitted by the transmitter at the carrier frequency and noise signals of other frequencies. The oscillation frequency of the oscillator of the super-regenerative receiving device is the same as the carrier frequency of the digital signal transmitted by the transmitter, and when the frequency of the signal received by the oscillator is the same as the oscillation frequency, the start-up of the vibration...

AI Technical Summary

Problems solved by technology

When the time width of the oscillation signal under the same state of the frequency of the external signal and the oscillation frequency is not significantly different from the time width of the oscillation signal under the different state of the frequency of the external signal and the oscillation frequency, relying solely on the low-pass in the existing super regenerative receiving device The filter 106 and comparator 107 cannot effectively decode the external input signal within a finite number of cycles

Using the existing super-regenerative receiving device to decode the received external signal, receiving a stable data generally needs to cover more than 20 cycles, and the cycle of the existing super-regenerative receiving device is constant during the process of receiving data. This results in a lower data transfer rate for the receiving device

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