Sampling rate conversion
AssigneeBose Corporation
InventorsAndrew I. Russell, Paul E. Beckmann
Life of this patent
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Abstract
An input signal having a first sampling rate is converted to an output signal having a second sampling rate. This is done by obtaining an intermediate sampling value from the input signal and filtering the intermediate sampling value to obtain the output signal. The intermediate sampling value corresponds to a sample taken at the second sampling rate on a continuous-time representation of the input signal.
Claims43
A method of converting an input signal having a first sampling rate to an output signal having a second sampling rate, comprising:
- obtaining an intermediate sampling value from the input signal, the intermediate sampling value corresponding to a sample taken at the second sampling rate on a continuous-time representation of the input signal;
- and
- filtering the intermediate sampling value to obtain the output signal.
A computer program stored on a computer-readable medium for converting an input signal having a first sampling rate to an output signal having a second sampling rate, the computer program comprising executable instructions that cause a computer to:
- obtain an intermediate sampling value from the input signal, the intermediate sampling value corresponding to a sample taken at the second sampling rate on a continuous-time representation of the input signal;
- and
- filter the intermediate sampling value to obtain the output signal.
An apparatus for converting an input signal having a first sampling rate to an output signal having a second sampling rate, that apparatus comprising circuitry which:
- obtains an intermediate sampling value from the input signal, the intermediate sampling value corresponding to a sample taken at the second sampling rate on a continuous-time representation of the input signal;
- and
- filters the intermediate sampling value to obtain the output signal.
An apparatus for converting an input signal having a first sampling rate to an output signal having a second sampling rate, comprising:
- means for obtaining an intermediate sampling value from the input signal, the intermediate sampling value corresponding to a sample taken at the second sampling rate on a continuous-time representation of the input signal;
- and
- means for filtering the intermediate sampling value to obtain the output signal.
Dependencies are inferred from the claim text.