Removable RAM package for ambulatory medical monitor
First Claim
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1. A removable RAM package for data acquisition comprising:
- (a) a power supply;
(b) a RAM coupled to a data bus and an address bus, said RAM also electrically coupled to an elongated multiterminal edge connector for connecting the removable RAM package to an external device having an elongated multiterminal edge connector for mating engagement with said RAM package connector, said RAM being powered by said power supply;
(c) an interlock circuit which senses when the removable RAM package is properly connected to said external device substantially along the entire length of said edge connectors, said interlock circuit being powered by said power supply, and said interlock circuit preventing writes to said RAM unless said removable RAM package is properly connected to said external device substantially along the entire length of said edge connectors.
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Abstract
A removable package for use primarily in an ambulatory monitoring device, such as a medical monitor includes a RAM and a power supply. The RAM package is connected to an external device via an edge connector which includes interlock means for sensing when the removable RAM package is properly connected to the external device in order to prevent inadvertent writes into the RAM. In a preferred embodiment of the invention disclosed, the removable RAM circuit also includes a microprocessor compatible real time timer which is connected to the same data and address buses as the RAM.
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Citations
10 Claims
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1. A removable RAM package for data acquisition comprising:
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(a) a power supply; (b) a RAM coupled to a data bus and an address bus, said RAM also electrically coupled to an elongated multiterminal edge connector for connecting the removable RAM package to an external device having an elongated multiterminal edge connector for mating engagement with said RAM package connector, said RAM being powered by said power supply; (c) an interlock circuit which senses when the removable RAM package is properly connected to said external device substantially along the entire length of said edge connectors, said interlock circuit being powered by said power supply, and said interlock circuit preventing writes to said RAM unless said removable RAM package is properly connected to said external device substantially along the entire length of said edge connectors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification