Granted Patent B2

US 10,200,219 · App. 15/707,521 · Granted Feb 5, 2019

Abstract

Claims (37)

1. A system comprising:

one or more circuits operable to:

apply pre-distortion modification during processing of an input signal for transmission;

generate feedback data based on a plurality of feedback signals, wherein:

each of said plurality of feedback signals corresponds to a particular processing stage performed during processing of said input signal; and

generating said feedback data comprises applying one or more adjustments to said plurality of feedback signals based on a type and/or a source of at least one feedback signal, said one or more adjustments to said plurality of feedback signals comprising one or more of:

applying a gain to one of said plurality of feedback signals;

applying a delay to one of said plurality of feedback signals; and

modifying a first one of said plurality of feedback signals based on a second one of said plurality of feedback signals; and

apply one or more adjustments to said pre-distortion modification based on said feedback data; and

wherein said one or more circuits are operable to determine and/or apply said one or more adjustments to said pre-distortion modification based on one or more environmental conditions.

2. The system of claim 1 , wherein said one or more circuits are operable to subtract said first one of said plurality of feedback signals from said second one of said plurality of feedback signals.

3. The system of claim 1 , wherein said one or more circuits are operable to periodically determine and/or apply said one or more adjustments to said pre-distortion modification.

4. The system of claim 1 , wherein said one or more circuits are operable to determine and/or apply said one or more adjustments to said pre-distortion modification based on one or more parameters relating to said one or more circuits.

5. The system of claim 1 , wherein said one or more circuits are operable to determine and/or apply said one or more adjustments to said pre-distortion modification based on sensory data relating to said one or more environmental conditions.

6. The system of claim 1 , wherein said plurality of feedback signals comprise one or more intermediate signals generated during processing of said input signal after application of said pre-distortion modification.

7. The system of claim 6 , wherein said one or more circuits are operable to process said one or more intermediate signals to generate data relating to or derived from said one or more intermediate signals.

8. The system of claim 1 , wherein said pre-distortion modification comprises modifying one or more characteristics of said input signal.

9. The system of claim 8 , wherein said one or more characteristics comprise one or more of: phase, frequency, and amplitude.

10. A method comprising:

applying pre-distortion modification during processing of an input signal for transmission;

generating feedback data based on a plurality of feedback signals, wherein:

each of said plurality of feedback signals corresponds to a particular processing stage performed during said processing of said input signal; and

generating said feedback data comprises applying one or more adjustments to said plurality of feedback signals based on a type and/or a source of at least one feedback signal, said one or more adjustments comprising one or more of:

applying a gain to one of said plurality of feedback signals;

applying a delay to one of said plurality of feedback signals; and

modifying a first one of said plurality of feedback signals based on a second one of said plurality of feedback signals; and

applying one or more adjustments to said pre-distortion modification based on said feedback data;

wherein at least one of said determining and said applying of said one or more adjustments to said pre-distortion modification is based on one or more environmental conditions.

11. The method of claim 10 , wherein modifying said first one of said plurality of feedback signals based on said second one of said plurality of feedback signals comprises subtracting said first one of said plurality of feedback signals from said second one of said plurality of feedback signals.

12. The method of claim 10 , comprising periodically determining and/or applying said one or more adjustments to said pre-distortion modification.

13. The method of claim 10 , comprising determining and/or applying said one or more adjustments to said pre-distortion modification based on one or more parameters relating to said one or more circuits.

14. The method of claim 10 , comprising determining and/or applying said one or more adjustments to said pre-distortion modification based on sensory data relating to said one or more environmental conditions.

15. The method of claim 10 , wherein said plurality of feedback signals comprise one or more intermediate signals generated during processing of said input signal after application of said pre-distortion modification.

16. The method of claim 15 , comprising processing said one or more intermediate signals to generate data relating to or derived from said one or more intermediate signals.

17. The method of claim 10 , wherein said pre-distortion modification comprises modifying one or more characteristics of said input signal.

18. The method of claim 17 , wherein said one or more characteristics comprise one or more of: phase, frequency, and amplitude.

Assignments (6)