Communication method and apparatus in high-frequency scenario
US-2024372772-A1 · Nov 7, 2024 · US
Apparatus and methods for signal generation, reception, and self-calibration
US9813281B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9813281-B2 |
| Application number | US-201715413447-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 24, 2017 |
| Priority date | Sep 12, 2013 |
| Publication date | Nov 7, 2017 |
| Grant date | Nov 7, 2017 |
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- Title
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Abstract
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Apparatus and methods for signal generation, reception, and calibration involving quadrature modulation and frequency conversion. Embodiments of the present invention provide extremely wide bandwidth, high spectral purity, versatility and adaptability in configuration, and ease of calibration, and are particularly well-adapted for use in integrated circuitry.
First claim
Opening claim text (preview).
What is claimed is: 1. A quadrature receiver for a received signal, the quadrature receiver comprising: a frequency synthesizer ( 401 ) for generating a synthesized frequency signal; a first quadrature modulator ( 403 ) having an input of the synthesized frequency signal from the frequency synthesizer ( 401 ) and outputting a 0° local oscillator signal; a second quadrature modulator ( 405 ) having an input of the synthesized frequency signal from the frequency synthesizer ( 401 ) and outputting a 90° local oscillator signal; a first mixer ( 561 ) for mixing the received signal with the 0° local oscillator signal from the first quadrature modulator ( 403 ); a second mixer ( 563 ) for mixing the received signal with the 90° local oscillator signal from the first quadrature modulator ( 405 ); a first converter ( 571 ) for demodulating an output from the first mixer ( 561 ); and a second converter ( 575 ) for demodulating an output from the second mixer ( 563 ). 2. The quadrature receiver of claim 1 , further comprising an amplifier ( 551 ), for amplifying the received signal. 3. The quadrature receiver of claim 1 , wherein a relative phase between the first quadrature modulator ( 403 ) and the second quadrature modulator ( 405 ) is adjustable. 4. The quadrature receiver of claim 1 , wherein a relative amplitude between the first quadrature modulator ( 403 ) and the second quadrature modulator ( 405 ) is adjustable.
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Classifications
Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems · CPC title
- H04L27/38Primary
Demodulator circuits; Receiver circuits · CPC title
with means for limiting noise, interference or distortion (H04B1/0483 takes precedence) · CPC title
Circuits · CPC title
assessing signal quality or detecting noise/interference for the received signal · CPC title
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- What does patent US9813281B2 cover?
- Apparatus and methods for signal generation, reception, and calibration involving quadrature modulation and frequency conversion. Embodiments of the present invention provide extremely wide bandwidth, high spectral purity, versatility and adaptability in configuration, and ease of calibration, and are particularly well-adapted for use in integrated circuitry.
- Who is the assignee on this patent?
- Vayyar Imaging Ltd, Vayyar Imaging Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04L27/38. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 07 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).