Electronics for a shock hardened data recorder
First Claim
1. A method for recording data on a recorder that experiences physical shock, power disruption, or both, comprising:
- conditioning a signal;
powering components of the digital recorder using said conditioned signal;
establishing and providing a reference time;
converting input analog signals into digital form as bytes of data;
separating said bytes into a most significant byte and a least significant byte;
controlling operations on said bits using said reference time and a trigger signal;
serially transmitting said separated bytes;
storing said separated bytes in non-volatile memory;
recombining said separated bytes; and
outputting said recombined bytes, wherein said method provides a reliable and efficient means for acquiring, recording, and outputting data obtained while testing in unfavorable environmental conditions.
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Accused Products
Abstract
Electronics for a shock-hardened device, in particular a data recorder, incorporating non-volatile memory. The device has the functional elements: a signal conditioning circuit, an oscillator, an analog-to-digital converter (ADC), a field programmable gate array (FPGA), a trigger, and a non-volatile memory incorporating both electrically erasable programmable read only memory (EEPROM) and fast static random access memory (SRAM). As a recorder, the electronics enable efficient and reliable data recording in extreme shock environments, e.g., those involving dynamic testing of weapons such as target penetrating bombs or dual-stage warheads. It also provides for data retention upon loss or shutdown of power to the unit and yields high MTBF (mean time between failure) figures in more benign environments.
10 Citations
7 Claims
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1. A method for recording data on a recorder that experiences physical shock, power disruption, or both, comprising:
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conditioning a signal;
powering components of the digital recorder using said conditioned signal;
establishing and providing a reference time;
converting input analog signals into digital form as bytes of data;
separating said bytes into a most significant byte and a least significant byte;
controlling operations on said bits using said reference time and a trigger signal;
serially transmitting said separated bytes;
storing said separated bytes in non-volatile memory;
recombining said separated bytes; and
outputting said recombined bytes, wherein said method provides a reliable and efficient means for acquiring, recording, and outputting data obtained while testing in unfavorable environmental conditions. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification