Radio-frequency apparatus with improved power consumption and associated methods
First Claim
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1. An apparatus comprising:
- a radio frequency (RF) receiver comprising;
a differentiator that differentiates a phase signal to generate a differentiated signal;
a correlator that receives and correlates the differentiated signal to generate a correlated signal;
a memory that receives and stores the differentiated signal,wherein samples of the differentiated signal are provided to the correlator and to the memory synchronously; and
a controller that selects centers of symbols encoded in an RF signal provided to the RF receiver by deriving a memory address pointer by detecting a point in time when the correlated signal reaches a peak.
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Abstract
An apparatus includes a radio frequency (RF) receiver, which includes a differentiator to differentiate a phase signal to generate a differentiated signal. The RF receiver further includes a correlator coupled to receive and correlate the differentiated signal, and a memory to receive and store the differentiated signal. Samples of the differentiated signal are provided to the correlator and to the memory synchronously.
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Citations
20 Claims
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1. An apparatus comprising:
a radio frequency (RF) receiver comprising; a differentiator that differentiates a phase signal to generate a differentiated signal; a correlator that receives and correlates the differentiated signal to generate a correlated signal; a memory that receives and stores the differentiated signal, wherein samples of the differentiated signal are provided to the correlator and to the memory synchronously; and a controller that selects centers of symbols encoded in an RF signal provided to the RF receiver by deriving a memory address pointer by detecting a point in time when the correlated signal reaches a peak. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An integrated circuit (IC), comprising:
a radio frequency (RF) receiver, comprising; a differentiator that differentiates a phase signal to generate a differentiated signal; a correlator that receives and correlates the differentiated signal to generate a correlated signal; a memory that receives and stores the differentiated signal; and a likelihood approximation circuit that applies a transfer function to samples stored in the memory to generate distorted samples for use for decoding information coded in the phase signal. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method of receiving radio frequency (RF) signals in an RF receiver, the method comprising:
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differentiating a phase signal to generate a differentiated signal; correlating the differentiated signal in a correlator to generate a correlated signal; receiving and storing in a memory the differentiated signal, wherein samples of the differentiated signal are provided to the correlator and to the memory synchronously; and selecting centers of symbols encoded in an RF signal provided to the RF receiver by deriving a memory address pointer by detecting a point in time when the correlated signal reaches a peak. - View Dependent Claims (17, 18, 19, 20)
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Specification