Methods and systems of controlling an electronic device's I/O terminals using pulse-width modulation
First Claim
1. An electronic system, comprising:
- a signal processor, wherein the signal processor has a first output signal and the first output signal is characterized by at least a duty cycle and a frequency; and
a control signal generator including a first circuit and a second circuit, wherein the control signal generator is configured to concurrently produce first and second control signals such that the first circuit is configured to produce the first control signal in accordance with the duty cycle of the first output signal, and the second circuit is configured to produce the second control signal in accordance with the frequency of the first output signal; and
an I/O interface to couple at least the first and second control signals to an output device.
3 Assignments
0 Petitions
Accused Products
Abstract
An electronic system includes a signal processor, a control signal generator, and an I/O interface. The signal processor has a first output signal and the first output signal is characterized by at least a first property and a second property. The control signal generator is configured to produce first and second control signals in accordance with the first and second properties of the first output signal, respectively. The I/O interface is configured to couple at least the first and second control signals to an output device. In some embodiments, the first output signal is a pulse width modulated signal having a software-specified pulse width and a software-specified repeat frequency. In some embodiments, the first property of the first output signal is the signal'"'"'s duty cycle and the second property is the signal'"'"'s frequency.
8 Citations
23 Claims
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1. An electronic system, comprising:
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a signal processor, wherein the signal processor has a first output signal and the first output signal is characterized by at least a duty cycle and a frequency; and a control signal generator including a first circuit and a second circuit, wherein the control signal generator is configured to concurrently produce first and second control signals such that the first circuit is configured to produce the first control signal in accordance with the duty cycle of the first output signal, and the second circuit is configured to produce the second control signal in accordance with the frequency of the first output signal; and an I/O interface to couple at least the first and second control signals to an output device. - View Dependent Claims (2, 3)
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4. An electronic system, comprising:
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a signal processor, wherein the signal processor has a first output signal and the first output signal is characterized by at least a duty cycle and a frequency; and a control signal generator including a first circuit and a second circuit, wherein the control signal generator is configured to concurrently produce first and second control signals such that the first circuit is configured to produce the first control signal in accordance with the duty cycle of the first output signal, and the second circuit is configured to produce the second control signal in accordance with the frequency of the first output signal. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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11. A control signal generator receiving an input signal, wherein the input signal is characterized by at least a duty cycle and a frequency, comprising:
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a first control circuit, wherein the first control circuit is configured to produce a first control signal based on a value of the duty cycle of the input signal; and a second control circuit, wherein the second control circuit is configured to produce a second control signal, concurrently with production of the first control signal, the second control signal based on a value of the frequency of the input signal. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method of generating multiple control signals, comprising:
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receiving an output signal from a signal processor, wherein the output signal is characterized by at least a duty cycle and a frequency; generating a first control signal based on a value of the duty cycle of the output signal; and generating a second control signal, concurrently with generation of the first control signal, the second control signal based on a value of the frequency of the output signal. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification