SYSTEM AND METHOD FOR POWER CALIBRATING A PULSE GENERATOR
First Claim
1. An apparatus for generating a first signal, comprising:
- a current source adapted to generate a first current to produce the first signal;
a current sampling module adapted to generate a second current as a function of the first current;
a reference current module adapted to generate a third current; and
a calibration module adapted to calibrate the first current based on the second and third currents.
1 Assignment
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Accused Products
Abstract
An apparatus is disclosed for generating an output signal (e.g., a defined pulse), including a power or current calibration feature. The apparatus comprises a current source adapted to generate a first current to produce the output signal, a current sampling module adapted to generate a second current as a function of (e.g., substantially proportional or equal to) the first current, a reference current module (e.g., a bandgap current source) adapted to generate a third current, and a calibration module adapted to calibrate the first current based on the second and third currents. The current source comprises a plurality of selectable current paths. The current sampling module comprises a replica of at least a portion of one or more current paths of the current source. The calibration module may perform a calibration in response to a defined time, an environment parameter (temperature, voltage, pulse repetition frequency, amplitude requirement change, etc.), or the output signal not being generated.
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Citations
37 Claims
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1. An apparatus for generating a first signal, comprising:
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a current source adapted to generate a first current to produce the first signal; a current sampling module adapted to generate a second current as a function of the first current; a reference current module adapted to generate a third current; and a calibration module adapted to calibrate the first current based on the second and third currents. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of generating a first signal, comprising:
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generating a first current to produce the first signal; generating a second current as a function of the first current; generating a third current; and calibrating the first current based on the second and third currents. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An apparatus for generating a first signal, comprising:
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means for generating a first current to produce the first signal; means for generating a second current as a function of the first current; means for generating a third current; and means for calibrating the first current based on the second and third currents. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A computer program product, comprising:
a computer readable medium comprising instructions executable to; generate a first current to produce a first signal; generate a second current as a function of the first current; generate a third current; and calibrate the first current based on the second and third currents.
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35. A headset, comprising:
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a transducer adapted to generate audio data; and a transmitter adapted to transmit a first signal comprising the audio data, wherein the transmitter comprises; a current source adapted to generate a first current to produce the first signal; a current sampling module adapted to generate a second current as a function of the first current; a reference current module adapted to generate a third current; and a calibration module adapted to calibrate the first current based on the second and third currents.
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36. A user device, comprising:
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a user interface; and a transmitter adapted to transmit a first signal comprising data received from the user interface, wherein the transmitter comprises; a current source adapted to generate a first current to produce the first signal; a current sampling module adapted to generate a second current as a function of the first current; a reference current module adapted to generate a third current; and a calibration module adapted to calibrate the first current based on the second and third currents.
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37. A sensing device, comprising:
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a sensor adapted to generate sensed data; and a transmitter adapted to transmit a first signal comprising the sensed data, wherein the transmitter comprises; a current source adapted to generate a first current to produce the first signal; a current sampling module adapted to generate a second current as a function of the first current; a reference current module adapted to generate a third current; and a calibration module adapted to calibrate the first current based on the second and third currents.
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Specification