Claims
- 1. A receiver digital circuitry, comprising:
digital down-converter circuitry configured to mix a digital input signal provided by a receiver analog circuitry with a digital intermediate frequency (IF) local oscillator signal to generate a digital down-converted signal; and digital filter circuitry configured to filter the digital down-converted signal to generate a filtered digital signal, wherein the digital filter circuitry provides a notch at a frequency that corresponds to a residual DC offset of the receiver analog circuitry.
- 2. A radio-frequency (RF) apparatus, comprising:
a first circuit partition, comprising receiver analog circuitry configured to produce a digital receive signal from an analog radio-frequency signal; and a second circuit partition, comprising receiver digital circuitry configured to accept the digital receive signal, wherein the first and second circuit partitions are partitioned so that interference effects between the first circuit partition and the second circuit partition tend to be reduced.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This patent application is a continuation-in-part of U.S. patent application Ser. No. 09/821,342, Attorney Docket No. SILA:072, titled “Partitioned Radio-Frequency Apparatus and Associated Methods,” and filed on Mar. 29, 2001. This patent application claims priority to Provisional U.S. patent application Ser. No. 60/261,506, Attorney Docket No. SILA:.072PZ1, filed on Jan. 12, 2001; Provisional U.S. patent application Ser. No. 60/273,119, Attorney Docket No. SILA:072PZ2, titled “Partitioned RF Apparatus with Digital Interface and Associated Methods,” and filed on Mar. 2, 2001; and Provisional U.S. patent application Ser. No. 60/333,520, filed on Nov. 27, 2001.
[0002] Furthermore, this patent application incorporates by reference the following patent documents: U.S. patent application Ser. No. ______, Attorney Docket No. SILA:078, titled “Digital Architecture for Radio-Frequency Apparatus and Associated Methods”; and U.S. patent application Ser. No. ______, Attorney Docket No. SILA:098, titled “DC Offset Reduction in Radio-Frequency Apparatus and Associated Methods.”
Provisional Applications (3)
|
Number |
Date |
Country |
|
60261506 |
Jan 2001 |
US |
|
60273119 |
Mar 2001 |
US |
|
60333520 |
Nov 2001 |
US |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09821342 |
Mar 2001 |
US |
Child |
10075099 |
Feb 2002 |
US |