Field programmable optical filter
US-2024128992-A1 · Apr 18, 2024 · US
IQ baseband matching calibration technique
US9088331B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9088331-B2 |
| Application number | US-201414519463-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 21, 2014 |
| Priority date | Feb 22, 2013 |
| Publication date | Jul 21, 2015 |
| Grant date | Jul 21, 2015 |
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Abstract
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The first and second outputs of a signal generation system are coupled to the first and second inputs of a signal digitizing system via respective electrical conductors. A controller directs the generation system to generate a first calibration signal, and the digitizing system responsively captures a first set of vector samples. The conductors are then reconfigured so they connect the first and second outputs of the generation system respectively to the second and first inputs of the digitization system. The controller then directs the generation system to generate a second calibration signal, and the digitizing system responsively captures a second set of vector samples. The controller or other processing agent computes gain and/or phase impairments using the first and second vector sample sets. Digital filter parameters may be computed based on the computed impairment(s), and used to correct the impairment(s) of the generation system and/or the digitizing system.
First claim
Opening claim text (preview).
What is claimed is: 1. A non-transitory memory medium storing program instructions, for determining gain and/or phase imbalance of a signal generation system and/or a signal digitizing system, wherein the program instructions, when executed by a processor, cause the processor to implement: (a) after a first output and a second output of the signal generation system has been connected respectively to a first input and a second input of the signal digitizing system using respectivel…
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Electricity · mapped topic
- H04B1/12Primary
Electricity · mapped topic
Electricity · mapped topic
- H04L27/364Primary
Electricity · mapped topic
- H04B1/123Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9088331B2 cover?
- The first and second outputs of a signal generation system are coupled to the first and second inputs of a signal digitizing system via respective electrical conductors. A controller directs the generation system to generate a first calibration signal, and the digitizing system responsively captures a first set of vector samples. The conductors are then reconfigured so they connect the first an…
- Who is the assignee on this patent?
- Nat Instr Corp
- What technology area does this patent fall under?
- Primary CPC classification H04B1/12. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 21 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).