04083366 is referenced by 59 patents and cites 8 patents.

A heart beat rate monitor is provided with memory means for storing upper and lower limits of a range of heart beat rates. The limits are transmitted to and stored in the memory from an external source. The monitor wearer's heart beat is sensed and whenever the sensed beat rate is outside the range defined by the limits an out-of-range indication is provided to the wearer. The memory means are powered so as not to be affected by the depletion of the main battery which is the primary source of power for the monitor circuitry. In some embodiments, the limits received from the external unit are transmitted thereto for verification purposes. In some embodiments the actual sensed heart beat rate and/or the stored limits are displayable to the wearer upon request.

Title
Heart beat rate monitor
Application Number
5/696497
Publication Number
4083366
Application Date
June 16, 1976
Publication Date
April 11, 1978
Inventor
Michael L Harvey
Ewa Beach
HI, US
Peter P Gombrich
416 N. Westwood Dr., Golden Valley, 55422
MN, US
Agent
Lindenberg Freilich Hornbaker Wasserman Rosen & Fernandez
Assignee
Peter P Gombrich
MN, US
IPC
A61B 5/02
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