17876916. Wireless Circuitry with Narrowband Error Vector Magnitude (EVM) Estimator simplified abstract (Apple Inc.)
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Wireless Circuitry with Narrowband Error Vector Magnitude (EVM) Estimator
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Inventor(s)
Wireless Circuitry with Narrowband Error Vector Magnitude (EVM) Estimator - A simplified explanation of the abstract
This abstract first appeared for US patent application 17876916 titled 'Wireless Circuitry with Narrowband Error Vector Magnitude (EVM) Estimator
Simplified Explanation
The abstract of this patent application describes a wireless circuitry system that includes a processor, upconversion circuit, amplifier, and antenna. The amplifier can be adjusted based on an estimated value computed using error vector magnitude (EVM) estimation circuitry. The EVM estimation circuitry includes filters, signal extraction circuits, and a comparison circuit.
- The processor generates a reference baseband signal.
- The upconversion circuit upconverts the baseband signals to radio-frequency signals.
- The amplifier amplifies the radio-frequency signals.
- The antenna transmits the amplified signals.
Potential applications of this technology:
- Wireless communication systems
- Mobile devices
- Internet of Things (IoT) devices
- Satellite communication systems
Problems solved by this technology:
- Ensures accurate amplification of radio-frequency signals
- Improves signal quality and reduces distortion
- Enables efficient wireless communication
Benefits of this technology:
- Enhanced signal transmission and reception
- Improved overall performance of wireless systems
- Increased data transfer rates
- Better signal quality and reliability
Original Abstract Submitted
Wireless circuitry can include a processor that generates a reference baseband signal, an upconversion circuit that upconverts the baseband signals to radio-frequency signals, an amplifier that amplifies the radio-frequency signals, and an antenna. The amplifier can be adjusted based on an estimated value computed using error vector magnitude (EVM) estimation circuitry. The EVM estimation circuitry may include a first filter configured to receive the reference signal, a second filter configured to receive a measured signal coupled from the output of the amplifier, a first signal extraction circuit coupled to an output of the first filter, a second signal extraction circuit coupled to an output of the second filter, and a comparison circuit having a first input that receives signals from the first signal extraction circuit, a second input that receives signals from the second signal extraction circuit, and an output on which the estimated value is provided.
