Claims
- 1. A portion of a receiver comprising:
a timing recovery mechanism; and a magnitude equalizer coupled between an input for receiving a wireless signal and the timing recovery mechanism, the magnitude equalizer equalizing a magnitude of the received signal and transmitting the magnitude equalized signal to the timing recovery mechanism.
- 2. The portion of a receiver according to claim 1, wherein the magnitude equalizer equalizes the magnitude of the received signal without regard to distortion of a phase of the received signal.
- 3. The portion of a receiver according to claim 1, further comprising:
a channel equalizer coupled to an output of the timing recovery mechanism, the channel equalizer equalizing a signal from the timing recovery mechanism.
- 4. The portion of a receiver according to claim 3, wherein the channel equalizer corrects any phase distortions introduced by the magnitude equalizer.
- 5. The portion of a receiver according to claim 1, wherein the magnitude equalizer further comprises:
a signal adder; a feed-forward filter coupled between the input and the signal adder; and a unity gain filter coupled between the input and the signal adder in parallel with the feed-forward equalizer.
- 6. The portion of a receiver according to claim 1, wherein the magnitude equalizer further comprises:
a signal adder; and a feedback filter coupled within a feedback loop between an output of the signal adder and the signal adder.
- 7. The portion of a receiver according to claim 1, wherein the magnitude equalizer further comprises:
at least one filter utilizing only real coefficients and constrained so that a direct term of all filters within the magnitude equalizer is constrained to unity.
- 8. A receiver comprising:
an input for receiving a signal; a timing recovery mechanism; a channel equalizer coupled to an output of the timing recovery mechanism, the channel equalizer equalizing a signal received from the timing recovery mechanism; and a magnitude equalizer coupled between the input and the timing recovery mechanism, the magnitude equalizer equalizing a magnitude of the received signal and transmitting the magnitude equalized signal to the timing recovery mechanism.
- 9. The receiver according to claim 8, wherein the magnitude equalizer equalizes the magnitude of the received signal without regard to distortion of a phase of the received signal.
- 10. The receiver according to claim 8, further comprising:
a sync detector coupled to an output of the channel equalizer.
- 11. The receiver according to claim 8, wherein the channel equalizer corrects any phase distortions introduced by the magnitude equalizer.
- 12. The receiver according to claim 8, wherein the magnitude equalizer further comprises:
a signal adder; a feed-forward filter coupled between the input and the signal adder; and a unity gain filter coupled between the input and the signal adder in parallel with the feed-forward equalizer.
- 13. The receiver according to claim 8, wherein the magnitude equalizer further comprises:
a signal adder; and a feedback filter coupled within a feedback loop between an output of the signal adder and the signal adder.
- 14. The receiver according to claim 8, wherein the magnitude equalizer further comprises:
at least one filter utilizing only real coefficients and constrained so that a direct term of all filters within the magnitude equalizer is constrained to unity.
- 15. A method of improving correlation peak detection within a receiver employing sync based timing recovery comprising:
receiving a signal; equalizing a magnitude of the received signal; and transmitting the magnitude equalized signal to a timing recovery mechanism.
- 16. The method according to claim 15, wherein the step of equalizing a magnitude of the received signal further comprises:
equalizing the magnitude of the received signal without regard to distortion of a phase of the received signal.
- 17. The method according to claim 15, further comprising:
equalizing a signal from the timing recovery mechanism.
- 18. The method according to claim 17, wherein the step of equalizing a signal from the timing recovery mechanism further comprises:
correcting any phase distortions introduced by equalizing the magnitude of the received signal prior to transmitting the magnitude equalized signal to the timing recovery mechanism.
- 19. The method according to claim 15, wherein the step of equalizing a magnitude of the received signal further comprises:
employing a feed-forward filter coupled between an input and a signal adder in parallel with a unity gain filter coupled between the input and the signal adder.
- 20. The method according to claim 15, wherein the step of equalizing a magnitude of the received signal further comprises:
employing a feedback filter coupled within a feedback loop between a signal adder and an output of the signal adder.
- 21. A magnitude equalized output signal for transmission to a timing recovery mechanism generated by the method as set forth in claim 15.
CLAIM FOR PRIORITY/CROSS-REFERENCE TO RELATED APPLICATION(S)
[0001] This application claims priority to United States provisional applications serial Nos. 60/295,864 and 60/297,497 filed Jun. 5, 2001 and Jun. 12, 2001, respectively, is related to the subject matter disclosed in commonly assigned, copending U.S. patent application Ser. No. (Docket No. 702288) entitled “VSB-MOE PRE-EQUALIZER FOR 8-VSB DTV” and filed The content of the above-identified application(s) is incorporated herein by reference.
Provisional Applications (2)
|
Number |
Date |
Country |
|
60295864 |
Jun 2001 |
US |
|
60297497 |
Jun 2001 |
US |