Method and system for variable resolution data conversion in a receiver
A received plurality of signals may be filtered to select an in-band signal and/or an out-of-band. A signal strength of the selected signal(s) may be measured. A resolution of an analog-to-digital converter may be controlled based on the measured signal strength(s). The selected in-band signal may be converted to a digital representation via the analog-to-digital converter. The resolution may be decreased when the strength of the in-band signal is higher, and increased when the strength of the in-band signal is lower. The resolution may be increased when the strength of the out-of-band signal is higher, and decreased when the strength of the out-of-band signal is lower. A signal-to-noise ratio and/or dynamic range of the selected signal(s) may be determined based on the measured signal strength(s), and may be utilized to adjust the resolution of the analog-to-digital converter.
1. A method comprising:
filtering a received plurality of signals to select an in-band signal, said in-band signal being an analog signal;
measuring a signal strength of said in-band signal;
adjusting a resolution of an analog-to-digital converter based on said signal strength; and
converting said in-band signal to a digital representation via said analog-to-digital converter.
2. The method according to claim 1 comprising:
adjusting said resolution lower when said signal strength of said in-band signal is higher; and
adjusting said resolution higher when said signal strength of said in-band signal is lower.
3. The method according to claim 1 , comprising amplifying said in-band signal prior to said measuring.
4. The method according to claim 1 , comprising:
determining a signal-to-noise ratio of said in-band signal based on said signal strength of said in-band signal; and
adjusting said resolution of said analog-to-digital converter based on said signal-to-noise ratio.
5. The method according to claim 1 , comprising:
determining a dynamic range of said in-band signal based on said signal strength of said in-band signal; and
adjusting said resolution of said analog-to-digital converter based on said dynamic range.
6. A method comprising:
filtering a received plurality of signals to select an in-band signal and an out-of-band signal, said in-band signal and said out-of-band signal each being an analog signal;
measuring a signal strength of said out-of-band signal;
adjusting a resolution of an analog-to-digital converter based on said signal strength of said out-of-band signal; and
converting said in-band signal to a digital representation via said analog-to-digital converter.
7. The method according to claim 6 comprising:
adjusting said resolution lower when said signal strength of said out-of-band signal is lower; and
adjusting said resolution higher when said signal strength of said out-of-band signal is higher.
8. The method according to claim 6 , wherein said in-band signal is communicated via a first communication channel and said out-of-band signal is communicated via a second communication channel.
9. The method according to claim 6 , comprising:
determining a signal-to-noise ratio of said in-band signal based on said signal strength of said out-of-band signal; and
adjusting said resolution of said analog-to-digital converter based on said signal-to-noise ratio.
10. The method according to claim 6 , comprising:
determining a dynamic range of said in-band signal based on said signal strength of said out-of-band signal; and
adjusting said resolution of said analog-to-digital converter based on said dynamic range.
11. A system comprising:
one or more circuits for use in a receiver, said one or more circuits comprising one or more filters and an analog-to-digital converter, said one or more circuits being operable to:
filter a received plurality of signals to select an in-band signal, said in-band signal being an analog signal;
measure a signal strength of said in-band signal;
adjust a resolution of said analog-to-digital converter based on said signal strength of said in-band signal; and
convert said in-band signal to a digital representation via said analog-to-digital converter.
12. The system according to claim 11 wherein said one or more circuits are operable to:
adjust said resolution lower when said signal strength of said in-band signal is higher; and
adjust said resolution higher when said signal strength of said in-band signal is lower.
13. The system according to claim 11 , wherein said one or more circuits are operable to amplify said in-band signal prior to said of measuring said signal strength of said in-band signal.
14. The system according to claim 11 , wherein said one or more circuits are operable to:
determine a signal-to-noise ratio of said in-band signal based on said signal strength of said in-band signal; and
adjust said resolution of said analog-to-digital converter based on said signal-to-noise ratio.
15. The system according to claim 11 , wherein said one or more circuits are operable to:
determine a dynamic range of said in-band signal based on said signal strength of said in-band signal; and
adjust said resolution of said analog-to-digital converter based on said dynamic range.
16. A system comprising:
one or more circuits for use in a receiver, said one or more circuits comprising one or more filters and an analog-to-digital converter, said one or more circuits being operable to:
filter a received plurality of signals to select an in-band signal and an out-of-band signal, said in-band signal and said out-of-band signal each being an analog signal;
measure a signal strength of said out-of-band signal;
adjust a resolution of said analog-to-digital converter based on said signal strength of said out-of-band signal; and
convert said in-band signal to a digital representation via said analog-to-digital converter.
17. The system according to claim 16 , wherein said one or more circuits are operable to:
adjust said resolution lower when said signal strength of said out-of-band signal is lower; and
adjust said resolution higher when said signal strength of said out-of-band signal is higher.
18. The system according to claim 16 , wherein said in-band signal is communicated via a first communication channel and said out-of-band signal is communicated via a second communication channel.
19. The system according to claim 16 , wherein said one or more circuits are operable to:
determine a signal-to-noise ratio of said in-band signal based on said signal strength of said out-of-band signal; and
adjust said resolution of said analog-to-digital converter based on said signal-to-noise ratio.
20. The system according to claim 16 , wherein said one or more circuits are operable to:
determine a dynamic range of said in-band signal based on said signal strength of said out-of-band signal; and
adjust said resolution of said analog-to-digital converter based on said dynamic range.