Systems and methods for a crystal-less bluetooth low energy transceiver
US10992503B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2020 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Feb 14, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0089
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A transceiver includes a receive circuit configured to receive an incoming signal and recover a reference signal at a reference frequency from the incoming signal. The incoming signal is a wireless packet. A first oscillator generates a signal at a set of predetermined frequencies. A first phase lock loop (PLL) interfaced with the first oscillator. The first PLL is configured to adjust a first oscillator frequency of the first oscillator based on an incoming frequency of the incoming signal using the reference frequency. A transmit circuit includes a second oscillator configured to generate a carrier signal at a predetermined frequency and a modulator configured to modulate data over the carrier signal at the predetermined frequency. The transmit circuit includes a second PLL interfaced with the second oscillator that sets the second oscillator to generate the carrier signal at the predetermined frequency using the reference signal. The transmit circuit transmits the modulated carrier signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.