Audio signal generator
First Claim
1. A system for providing a distinguishable audible output varying in accordance with a condition to be monitored comprising first means for generating a signal that varies in accordance with variations of a monitored condition, and audio signal generator means receiving said signal from said first means and generating an audible output that varies in n discrete steps corresponding to a range of variation of said signal.
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Abstract
A system is disclosed that includes an audio signal generator to provide a distinguishable audible output that varies in accordance with a monitored input. The audio signal generator varies a parameter of the audible output, such as frequency or amplitude, in n discrete steps corresponding to a range of variation in value of the monitored input. A plurality of different inputs may be monitored, and an audio signal generated therefrom having a plurality of different parameters, each of which corresponds to an individual one of the monitored inputs. The monitored inputs may be heart rate, systolic blood pressure, diastolic blood pressure, and body temperature. The audio signal produced may be composed of a series of recurring pulses, the parameters of which corresponding to the different monitored inputs are amplitude of each pulse, time duration of each pulse, time duration between the onset of successive pulses, and the frequency of the signal that defines each pulse.
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Citations
10 Claims
- 1. A system for providing a distinguishable audible output varying in accordance with a condition to be monitored comprising first means for generating a signal that varies in accordance with variations of a monitored condition, and audio signal generator means receiving said signal from said first means and generating an audible output that varies in n discrete steps corresponding to a range of variation of said signal.
- 7. A system for providing an audible output varying in accordance with a plurality of different monitored inputs comprising first means for generating a plurality of signals representing a plurality of different monitored inputs, and audio signal generator means receiving said plurality of signals for generating an audio signal having a plurality of different audio parameters, each of said parameters corresponding to an individual one of said plurality of signals, said audio signal generator means includes at least one quantizer means for varying an associated parameter of said audio signal in n discrete steps corresponding to a range of variation in value of the corresponding one of said plurality of signals.
Specification