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.
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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