Signal Acquisition System and Method

• US 20090292507A1
• Filed: 05/23/2008
• Published: 11/26/2009
• Est. Priority Date: 05/23/2008
• Status: Active Grant

• Current Assignee: Synaptics Incorporated
• Original Assignee: Conexant Systems Incorporated (Synaptics Incorporated)
• Inventors: Parker, Uri, Baron, Yoni, Nee, Chi-Ping, Kons, Shachar
• Granted Patent: US 8,335,663 B2
• Time in Patent Office: Days
• US Class Current: 702/189
• CPC Class Codes: H03M 13/00 Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes error detection or error correction for analogue/digital, digital/analogue or code conversion H03M1/00 – H03M11/00; specially adapted for digital computers G06F11/08; for information storage based on relative movement between record carrier and transducer G11B, e.g. G11B20/18; for static stores G11C
• CPC Class Codes: H04L 1/0045 Arrangements at the receiver end
• CPC Class Codes: H04L 27/0014 Carrier regulation of chaotic carriers H04L27/001; for multicarrier receivers H04L27/2657

Abstract

A system for signal processing is provided. The system includes a steady state processing system for receiving a signal. A general purpose processing system is coupled to the steady state processing system and includes a signal acquisition system for receiving the signal and generating acquisition data. The steady state processing system can receive the acquisition data from the signal acquisition system and use the acquisition data to acquire the signal.

Claims

1. A system for signal processing comprising:

a steady state processing system for receiving a signal; and

a general purpose processing system coupled to the steady state processing system, the general purpose processing system comprising;

a signal acquisition system for receiving the signal and generating acquisition data; and

wherein the steady state processing system can receive the acquisition data from the signal acquisition system and use the acquisition data to acquire the signal.

2. The system of claim 1 wherein the signal acquisition system comprises a frequency offset estimate system for determining an estimate of a frequency offset of the signal and generating frequency offset correction data.

3. The system of claim 1 wherein the signal acquisition system comprises a sampling clock offset system for determining an offset of a sampling clock and generating sampling clock correction data.

4. The system of claim 1 wherein the signal acquisition system comprises a timing offset system for determining a timing offset and generating timing correction data.

5. The system of claim 1 wherein the signal acquisition system comprises a phase offset system for determining a phase offset and generating phase correction data.

6. The system of claim 1 wherein the steady state processing system further comprises an acquisition state system for generating an acquisition request and receiving the acquisition data in response to the acquisition request.

7. The system of claim 1 wherein the steady state processing system further comprises a steady state monitor system for monitoring steady state signal parameters and generating an acquisition request if the steady state signal parameters exceed one or more predetermined values.

8. A method for signal processing comprising:

receiving a signal at a peripheral system;

providing the signal to a central processing system;

receiving signal acquisition data from the central processing system; and

applying the signal acquisition data to a receiver.

9. The method of claim 8 wherein receiving signal acquisition data comprises receiving frequency offset correction data.

10. The method of claim 8 wherein receiving signal acquisition data comprises sampling clock offset correction data.

11. The method of claim 8 wherein receiving signal acquisition data comprises receiving timing correction data.

12. The method of claim 8 wherein receiving signal acquisition data comprises receiving phase correction data.

13. The method of claim 8 further comprising switching from an acquisition mode of operation to a steady state mode of operation at the peripheral system after applying the signal acquisition data to the receiver.

14. The method of claim 14 further comprising:

monitoring the signal during the steady state mode of operation; and

switching from the steady state mode of operation to the acquisition mode of operation if one or more steady state parameters exceed a predetermined level.

15. A system for signal processing comprising:

a steady state processing system for receiving a signal;

means receiving the signal and generating acquisition data; and

wherein the steady state processing system receives the acquisition data and uses the acquisition data to acquire the signal.

16. The system of claim 15 further comprising means for determining an estimate of a frequency offset of the signal and generating frequency offset correction data.

17. The system of claim 15 further comprising means for determining an offset of a sampling clock and generating sampling clock correction data.

18. The system of claim 15 further comprising means for determining a timing offset and generating timing correction data.

19. The system of claim 15 further comprising means for determining a phase offset and generating phase correction data.

20. The system of claim 15 further comprising means for generating an acquisition request and receiving the acquisition data in response to the acquisition request.