Simultaneous radio frequency and magnetic field microprocessor reset circuit
First Claim
1. A microprocessor reset circuit, comprising:
- a microprocessor having a reset input;
means for receiving a radio frequency transmission and producing an output signal;
means for sensing the presence of a magnetic field; and
means connected to said radio frequency transmission means, to said magnetic field sensing means and to said microprocessor reset input for providing a signal to said microprocessor reset input if said magnetic field is present while a radio frequency transmission is received for at least a predetermined interval.
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Accused Products
Abstract
An implant for stimulating the vagus nerve receives commands over a radio frequency link. The implant disables a voltage convertor used in providing the stimulation signal at periodic intervals to monitor for communications attempts. The implant provides radio frequency marker pulses before providing stimulation signals of certain frequencies. During the providing of stimulation signals the implant monitors the voltage overhead present between the voltage source and the load and adjusts the overhead to a desired level. The implant changes the voltage applied to certain internal components during stimulation periods to allow full power operation during those intervals and reduced power levels at other intervals. The implant is reset by the placing a magnet in a given location in conjunction with the application of a radio frequency transmission for a given period.
390 Citations
6 Claims
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1. A microprocessor reset circuit, comprising:
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a microprocessor having a reset input; means for receiving a radio frequency transmission and producing an output signal; means for sensing the presence of a magnetic field; and means connected to said radio frequency transmission means, to said magnetic field sensing means and to said microprocessor reset input for providing a signal to said microprocessor reset input if said magnetic field is present while a radio frequency transmission is received for at least a predetermined interval. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification