Telemetry system with wireless power receiver and monitoring devices

A wireless receiver system, comprising:

• a rectifier coupled to an antenna, the antenna configured to receive a wireless signal, the rectifier configured to convert the wireless signal to a direct current input signal;
• a direct current to direct current converter configured to generate a direct current output signal based in part on the direct current input signal and a pulse width modulation signal;
• a pulse modulator configured to adjust an alternating current impedance of the wireless receiver system by modifying, based in part on the direct current input signal, a duty cycle of the pulse width modulation signal to the direct current to direct current converter;
• and
• a monitoring device in communication with the pulse modulator, wherein the monitoring device coupled to the antenna, the monitoring device including a microphone and sensors to determine air quality, sound level, sound quality, light quality and ambient temperature near a person;
• and
• an accelerometer or other motion detection device configured to detect a person's movement information, the accelerometer or other motion detection device and the monitoring device are configured to assist to determine a person's movement sounds, a person's sleep information and sleep behavior information, the microphone configured to record the person's movement sounds, the person's sleep information and sleep behavior information detected by the accelerometer or other motion detection device, the recording of the person's movement sounds, the person's sleep information and sleep behavior information is disabled in response to the accelerator detection of the person's movement information, wherein the accelerometer or other motion detection device configured to cause the microphone to stop recording the person's movement sounds when the person's movement sounds are not directed to a sleep related parameter.