Inline insitu calibration of mimo wireless communication systems
US-2024039645-A1 · Feb 1, 2024 · US
Reconfigurable receiver circuits for test signal generation
US9130666B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9130666-B2 |
| Application number | US-201414303552-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 12, 2014 |
| Priority date | Dec 10, 2012 |
| Publication date | Sep 8, 2015 |
| Grant date | Sep 8, 2015 |
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Abstract
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Receiver circuits that can be reconfigured to generate test signals in a wireless device are disclosed. In an exemplary design, an apparatus includes a mixer and an amplifier. The mixer downconverts an input radio frequency (RF) signal based on a local oscillator (LO) signal in a first mode. The amplifier, which is formed by at least a portion of the mixer, amplifies the LO signal and provides an amplified LO signal in a second mode. In another exemplary design, an apparatus includes an amplifier and an attenuator. The amplifier receives and amplifies an input RF signal in a first mode. The attenuator, which is formed by at least a portion of the amplifier, receives and passes an LO signal in a second mode.
First claim
Opening claim text (preview).
What is claimed is: 1. An apparatus comprising: an amplifier formed by a first plurality of transistors and configurable to receive and amplify an input radio frequency (RF) signal in a first mode; and an attenuator formed by a second plurality of transistors and configurable to receive and pass a local oscillator (LO) signal in a second mode, the second plurality of transistors comprising at least one of the first plurality of transistors and at least one additional transistor.…
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- H04B17/22Primary
Electricity · mapped topic
- H04B17/008Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9130666B2 cover?
- Receiver circuits that can be reconfigured to generate test signals in a wireless device are disclosed. In an exemplary design, an apparatus includes a mixer and an amplifier. The mixer downconverts an input radio frequency (RF) signal based on a local oscillator (LO) signal in a first mode. The amplifier, which is formed by at least a portion of the mixer, amplifies the LO signal and provides …
- Who is the assignee on this patent?
- Qualcomm Inc
- What technology area does this patent fall under?
- Primary CPC classification H04B17/22. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 08 2015 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).