Run-in test system for PC circuit board
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United States of America Patent
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Aug 6, 1996
Grant Date -
N/A
app pub date -
Apr 5, 1994
filing date -
Apr 5, 1994
priority date (Note) -
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Abstract
An automated functional test system for PC circuit boards. The test system includes a test chamber for removably receiving circuit boards to be tested, heating and cooling systems for controlling the temperature in the test chamber, a display, a variable circuit board power supply and diagnostics memory for storing PC circuit board diagnostic software. A control system is coupled to the heating and cooling systems, display, power supply and diagnostics memory. The control system causes the circuit board to execute the diagnostic software during low temperature, high temperature and cycling temperature diagnostic phases. The diagnostic phases are sequentially and repeatedly performed during a test cycle. The cooling system is actuated during the low temperature diagnostic phases to cool the test chamber to ambient temperature. The heating system is actuated during the high temperature diagnostic phases to heat the test chamber. Both the heating and cooling systems are actuated during the cycling temperature diagnostic phases to cycle the temperature. The power supplied to the circuit board is varied during the diagnostic phases. If the circuit board fails to properly execute the diagnostic software during the diagnostic phases, the display is actuated to provide an indication of a functional test failure. The display is actuated to provide an indication of a functional test completion at the end of the test cycle if the circuit board successfully executes the diagnostic software during the diagnostic phases.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- CASCABEL RESEARCH LLC;WANG LABORATORIES, INC.;DATASERV COMPUTER MAINTENANCE, INC.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Bushard, Bradley B | Chaska, MN | 1 | 88 |
Dion, Philip G | Columbia Heights, MN | 17 | 466 |
Heinz, Joseph V | Eden Prairie, MN | 1 | 88 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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