05371692 is referenced by 57 patents and cites 12 patents.

An electronic device such as a medical monitor (1) operates under program control; if the program needs to be updated, or if new programs or test procedures are to be added, an activating circuit (7) containing a microprocessor and non-volatile memory is connected to the electronic device. The microprocessor executes a program which consists of two modules: the first module establishes communication with the electronic device and the second module transmits activating code, program code or a test code to the electronic device. It is possible either to download new programs or to activate programs which already exist in the electronic device.

Title
Activating circuit for modifying or adding a new program to an electronic device
Application Number
7/668086
Publication Number
5371692
Application Date
March 12, 1991
Publication Date
December 6, 1994
Inventor
Guenter Paret
Herrenberg
DE
Juergen Draeger
Tubingen
DE
Assignee
Hewlett Packard Company
CA
IPC
G05B 19/00
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