Pulsed alarm system

Claim 2

A pulse indicating system comprising: pulse source means for supplying energizing pulses and synchronizing pulses; sensor means connected to be energized by said energizing pulses for providing a sensed output dependent upon a sensed condition; voltage divider means comprising an impedance circuit having an input connected to receive said sensed output and first and second outputs, a high voltage detection circuit having an input connected to said first output and having a first detection output, and a low voltage detection circuit havng an input connected to said second output of said impedance circuit and having a second detection output; a first switch having a first input connected to said first detection output, a second input connected to receive said synchronizing pulses, and a switch output; a second switch having a first input connected to said second detection output, a second input connected to receive said synchronizing pulses, and a second switch output; and, indicating means connected to said first and second switch outputs.

Claim 3

A pulse indicating system comprising: pulse source means comprising means for supplying a first set of energizing pulses, means for supplying a second set of energizing pulses, means for supplying a first set of synchronizing pulses synchronized to said first set of energizing pulses, and means for supplying a second set of synchronizing pulses synchronized to set second set of energizing pulses wherein said first and second sets of pulses are spaced sequentially in time one from the other; sensor means comprising a first sensor connected to be energized by said first set of energizing pulses for providing a first sensed output dependent upon a first sensed condition. a second sensor connected to be energized by said second set of energizing pulses for providing a second sensed output dependent upon a second sensed condition; and, condition indicating means comprising first indicating means connected to receive said first sensed output for providing an indication of said first sensed condition and also connected to receive said first set of synchronizing pulses for synchronizing said first indicating means to said first sensor, and second indicating means connected to receive said second sensed output for providing an indication of said second sensed condition and also connected to receive said second set of synchronizing pulses for synchronizing said second indicating means to said second sensor.

Claim 4

A pulse indicating system comprising: pulse source means comprising means for supplying a first set of energizing pulses, means for supplying a second set of energizing pulses, means for supplying a first set of synchronizing pulses synchronized to said first set of energizing pulses, and means for supplying a second set of synchronizing pulses synchronized to set second set of energizing pulses wherein said first and second sets of pulses are spaced sequentially in time one from the other; sensor means comprising a first sensor connected to be energized by said first set of energizing pulses for providing a first sensed output dependent upon a first sensed condition. a second sensor connected to be energized by said second set of energizing pulses for providing a second sensed output dependent upon a second sensed condition; and, condition indicating means comprising first indicating means connected to receive said first sensed output for providing an indication of said first sensed condition and also connected to receive said first set of synchronizing pulses for synchronizing said first indicating means to said first sensor, and second indicating means connected to receive said second sensed output for providing an indication of said second sensed condition and also connected to receive said second set of synchronizing pulses for synchronizing said second indicating means to said second sensor.

Claim 5

The system of claim 2 wherein said first indicating means comprises first indicator control means having a first means input connected to receive said first sensed output and a second input connected to receive said first set of synchronizing pulses and having an output, second indicator control means having a first input connected to receive said first sensed output and a second input connected to receive said first set of synchronizing pulses and having an output, and indicator means connected to said outputs of said first and second indicator control means of said first indicating means; and, said second indicating means comprises first indicator control means having a first input connected to receive said second sensed output and a second input connected to receive said second set of synchronizing pulses and having an output, second indicator control means having a first input connected to receive said second sensed output and a second input connected to receive said second set of synchronizing pulses and having an output, and indicator control means connected to said first and second indicator control means of said second indicating means.

Claim 6

The system of claim 3 wherein said means for supplying a first set of synchronizing pulses comprises a first source for supplying first synchronizing pulses to said second input of said second indicator control means of said first indicating means, and a second source for supplying second synchronizing pulses, delayed from said first synchronizing pulses, to said second input of said first indicator control means of said first indicating means, and said means for supplying a second set of synchronizing pulses comprising a third source for supplying third synchronizing pulses to said second input of said second indicator control means and said second indicating means, and a fourth source for supplying fourth synchronizing pulses, delayed from said third synchronizing pulses, to sayd second input of said first indicator control means of said second indicating means.

Claim 7

The system of claim 1 wherein said system further comprises a ground voltage detector having an input connected to earth ground and an output and a switch having a first input connected to said output of said ground voltage detector, a second input connected to receive said synchronizing pulses and an output connected to an indicator.

Claim 8

The system of claim 2 wherein said first and second indicating means each comprises indicating control means having first input means connected to receive its corresponding sensed output, second input means connected to receive its corresponding set of synchronizing pulses and an output means for providing a corresponding indication.

Claim 9

The system of claim 6 wherein said first input means of said indicating control means corresponding to said first and second indicating means each comprises voltage divider means having an input connected to receive said corresponding sensed output and an output means connected to said corresponding second input means.

Claim 10

The system of claim 7 wherein said voltage divider of said first input means corresponding to said first indicating means comprises a first impedance circuit having an input connected to receive said first sensed output and a first impedance circuit output means, a first high voltage detection circuit having an input connected to said first impedance circuit output means and a first high voltage output, and a first low voltage detection circuit having an input connected to said first impedance circuit output means and a first low voltage output, said second input means of said first indicating means comprises a first switch having a first input connected to said first high voltage output, a second input connected to receive said first set of synchronizing pulses and an output connected to said output means of said first indicating means, and a second switch having a first input connected to said first low voltage output, a second input connected to receive said first set of synchronizing pulses and an output connected to said output means of said first indicating means, said voltage divider of said first input means corresponding to said second indicating means comprises a second impedance circuit having an input connected to receive said second sensed output and a second impedance circuit output means, a second high voltage detection circuit having an input connected to said second impedance circuit output means and a second high voltage output, and a second low voltage detection circuit having an input connected to said second impedance circuit output means and a second low voltage output, said second input means of said second indicating means comprises a first switch having a first input connected to said second high voltage output, a second input connected to receive said second set of synchronizing pulses and an output connected to said output means of said second indicating means, and a second switch having a first input connected to said second low voltage output, a second input connected to receive said second set of synchronizing pulses and an output connected to said output means of said second indicating means.

Claim 11

The system of claim 8 wherein said means for supplying a first set of synchronizing pulses comprises a first source for supplying first synchronizing pulses to said second switch of said second input means of said first indicating means, and a second source for supplying second synchronizing pulses, delayed from said first synchronizing pulses, to said first switch of said second input means of said first indicating means, and said means for supplying a second set of synchronizing pulses comprises a third source for supplying third synchronizing pulses to said second switch of said second input means of said second indicating means, and a fourth source for supplying fourth synchronizing pulses, delayed from said third synchronizing pulses, to said first switch of said second input means of said second indicating means.

Claim 12

The system of claim 9 wherein said condition indicating means further comprises first ground indicating means comprising a first ground voltage detector having a first input connected to earth ground, a second input connected to receive said first synchronizing pulses and a first sensor ground indicator, and a second ground indicating means comprising a second ground voltage detector having a first input connected to earth ground, a second input connected to said third synchronizing and a second sensor ground indicator.