Back to results
US 2007/0165697 A1Published application
Digital radio system
OwnerRichard Anglininventor
Life of this patent
Estimating the term…
Abstract
Methods and apparatus for digital communications are disclosed. In one embodiment of the invention, chirp waveforms (10) are used to convey meanings of “one” and “zero.”
Claims54
A method comprising the steps of:
- generating a waveform (10);
- said waveform (10) having
- a start point ((12S);
- an end point (12E);
- a maximum amplitude (ymax);
- a time duration (12E-12S);
- and
- a slope (12E/12S);
- said start point (12S) and said end point (12E) being connected by a generally continuous line segment;
- transmitting said waveform (10);
- receiving said waveform (10);
- and
- detecting a meaning represented by said waveform (10);
- said meaning being evaluated as a digital “one” if the amplitude of said waveform (10) at said end point (12E) is greater than the amplitude of said waveform (10) at said start point (12S).
11 more elements
A method comprising the steps of:
- generating a waveform (10);
- said waveform (10) having
- a start point ((12S);
- an end point (12E);
- a maximum amplitude;
- a time duration (12E-12S);
- and
- a slope (12E/12S);
- said start point (12S) and said end point (12E) being connected by a generally continuous line segment;
- transmitting said waveform (10);
- receiving said waveform (10);
- and
- detecting a meaning represented by said waveform (10);
- said meaning being evaluated as a digital “zero” if the amplitude of said waveform (10) at said end point (12E) is less than the amplitude of said waveform (10) at said start point (12S).
11 more elements
A method comprising the steps of:
- generating a waveform (10);
- said waveform (10) having
- a start point (12S);
- an end point (12E);
- a maximum amplitude;
- a time duration (12E-12S);
- and
- a slope (12E/12S);
- said start point (12S) and said end point (12E) being connected by a generally continuous line segment;
- transmitting said waveform (10);
- receiving said waveform (10);
- and
- detecting a meaning represented by said waveform (10);
- said meaning being evaluated as a digital “one” if the slope (12E/12S) at any point on said waveform (10) is positive.
11 more elements
A method comprising the steps of:
- generating a waveform (10);
- said waveform (10) having
- a start point ((12S);
- an end point (12E);
- a maximum amplitude;
- a time duration (12E-12S);
- and
- a slope (12E/12S);
- said start point (12S) and said end point (12E) being connected by a generally continuous line segment;
- transmitting said waveform (10);
- receiving said waveform (10);
- and
- detecting a meaning represented by said waveform (10);
- said meaning being evaluated as a digital “zero” if the slope (12E/12S) at any point on said waveform (10) is negative.
11 more elements
A method comprising the steps of:
- generating a three dimensional waveform (10);
- said three dimensional waveform (10) having a first and a second start point (12S);
- a first and a second end point (12E);
- a first and a second maximum amplitude;
- a first and a second time duration (12E-12S);
- and
- a first and a second slope (12E/12S);
- said first start point (12S) and said end point (12E) being connected by a generally continuous line segment;
- said second start point (12S) and said end point (12E) being connected by a generally continuous line segment;
- transmitting said waveform (10);
- receiving said waveform (10);
- and
- detecting a meaning represented by said waveform (10);
- said meaning being evaluated as a digital “one” if both of said first and said second slope (12E/12S)s at any point on said waveform (10) are both positive.
11 more elements
A method comprising the steps of:
- generating a three dimensional waveform (10);
- said three dimensional waveform (10) having
- a first and a second start point (12S);
- a first and a second end point (12E);
- a first and a second maximum amplitude;
- a first and a second time duration (12E-12S);
- and
- a first and a second slope (12E/12S);
- said first start point (12S) and said end point (12E) being connected by a generally continuous line segment;
- said second start point (12S) and said end point (12E) being connected by a generally continuous line segment;
- transmitting said waveform (10);
- receiving said waveform (10);
- and
- detecting a meaning represented by said waveform (10);
- said meaning being evaluated as a digital “zero” if both of said first and said second slope (12E/12S)s at any point on said waveform (10) are both negative.
12 more elements
Dependencies are inferred from the claim text.