Claims
- 1. A radio circuit comprising:a radio front-end for converting radio signals to intermediate signals, receiving a first radio signal and a second radio signal, and providing a first intermediate frequency signal as converted from a selected one of the first radio signal and the second radio signal and a second intermediate frequency signal as converted from the one of the first and second radio signals not selected for the first intermediate frequency signal; an analog back-end having a plurality of inputs for receiving said first intermediate frequency signal and for processing the first intermediate frequency signal in response to digital signals; and a digital back-end having a plurality of inputs for receiving said second intermediate frequency signal and for processing the second intermediate frequency signal in response to the digital signals.
- 2. The radio circuit of claim 1 wherein the analog back-end comprises a blanking circuit responsive to the digital control signals.
- 3. The radio circuit of claim 2, wherein the analog back-end comprises a noise reduction circuit responsive to the digital control signals.
- 4. The radio circuit of claim 3, wherein the analog back-end and the digital back-end provide digital feedback signals representative of operating parameters in common between the analog and digital back-ends.
- 5. A radio circuit comprisinga front end circuit that provides a first intermediate signal responsive to a selected one of a first radio signal and a second radio signal and a second intermediate signal responsive to the one of the first radio signal and the second radio signal not selected for the first intermediate signal; an analog radio back-end, comprising: a signal processing unit which receives the first intermediate frequency signal, processes the intermediate signal in an analog manner, and provides an output; and a first modification circuit, coupled to the signal processing unit, which provides first modification information to the signal processing unit responsive to digital control information provided external to the radio back-end to cause a first type of modification, wherein the digital control information is characterized as being also able to control the first type of modification of a digital radio back-end.
- 6. The analog radio back-end of claim 5, wherein the first modification circuit is a noise control circuit and the first type of modification is noise control.
- 7. The analog radio back-end of claim 5, wherein the first modification circuit is a blanking circuit and the first type of modification is blanking.
- 8. The analog radio back-end of claim 5, further comprising a second modification circuit, coupled to the signal processing unit, which provides second modification information to the signal processing unit responsive to the digital control information to cause a second type of modification, wherein the digital control information is characterized as being also able to control the second type of modification of the digital radio back-end.
- 9. The analog radio back-end of claim 8, wherein the first modification circuit is a blanking circuit and the first type of modification is blanking and the second modification circuit is a noise control circuit, and the second type of modification is noise control.
- 10. The radio circuit of claim 5, further comprising a digital radio back-end for receiving the second intermediate frequency signal, wherein the processing unit provides feedback information of a first type external to the analog radio back-end, wherein the first type of information is present in the digital radio back-end.
RELATED APPLICATIONS
This is related to U.S. patent application Ser. No. 09/441,022, entitled “Feedforward and Feedback Control in a Radio,” U.S. patent application Ser. No. 09/441,024, entitled “Impulse Noise Blanker,” U.S. patent application Ser. No. 09/440,999, entitled “Noise Reduction and Range Control Radio System,” all of which are filed concurrently herewith and are incorporated herein by reference and assigned to the current assignee hereof.
US Referenced Citations (21)