BPSK demodulation
AssigneeKeyssa Systems, Inc.
InventorsPatrick Antoine Rada, Roger D. Isaac, Ian A. Kyles, Richard Russell Suter
Life of this patent
Estimating the term…
Abstract
Methods, systems, and apparatus for EM communications. One of the apparatus includes a super-regenerative amplifier (SRA) configured to receive a binary phase shift keying (BPSK) modulated signal and to output an amplitude signal as a function of changes in phase in the BPSK modulated signal; a pseudo synchronous demodulator that rectifies the amplitude signal and generates an envelope of the rectified amplitude signal; and an analog to digital converter that converts the amplitude values of the envelope to digital binary values.
Claims43
An apparatus comprising:
- a super-regenerative amplifier (SRA) configured to receive a binary phase shift keying (BPSK) modulated signal and to output an amplitude signal as a function of changes in phase in the BPSK modulated signal;
- a pseudo synchronous demodulator that rectifies the amplitude signal and generates an envelope of the rectified amplitude signal;
- and
- an analog to digital converter that converts the amplitude values of the envelope to digital binary values.
An apparatus comprising:
- a super-regenerative amplifier (SRA) configured to receive a binary phase shift keying (BPSK) modulated signal and to output an amplitude signal as a function of changes in phase in the BPSK modulated signal;
- a pseudo synchronous demodulator that rectifies the amplitude signal and generates an envelope of the rectified amplitude signal;
- and
- a comparator that compares amplitude values of the rectified amplitude signal with a reference amplitude to generate a binary digital output signal.
A method comprising:
- receiving a binary phase shift keyed (BPSK) modulated signal;
- using one or more super-regenerative amplifier (SRA) to convert the phase of the BPSK modulated signal to amplitude values;
- and
- performing pseudo synchronous demodulation to process the amplitude values into an envelope of a rectified amplitude signal.
Dependencies are inferred from the claim text.