04125111 is referenced by 18 patents and cites 6 patents.

Heartbeat data is measured and converted into a series of electrical output pulses, the frequency of which is related to the heartbeat pulse rate. The output pulses trigger "on" and "off" a timing device, and the average time of a heartbeat cycle is then converted into a heartbeat pulse rate and displayed. The timing device includes a means for delaying a first specified number of output pulses before beginning the sampling period and registering a count of clock pulses which represents the time period of a second specified number of the output pulses occurring subsequently to the first specified number of output pulses.

Title
Heartbeat data acquisition conversion and display system
Application Number
385699
Publication Number
4125111
Application Date
July 12, 1976
Publication Date
November 14, 1978
Inventor
Tony M Quisenberry
Austin
TX, US
Glenn E Hunt
Austin
TX, US
William B Sims Jr
Austin
TX, US
Allen D Boger Jr
Austin
TX, US
Jerald P Dykstra
Austin
TX, US
John L Neathery Jr
Austin
TX, US
Philip C Richardson
Austin
TX, US
Emmett L Hudspeth
Austin
TX, US
Agent
Fleit & Jacobson
Assignee
United States Surgical Corporation
CT, US
IPC
A61B 5/08
A61B 5/02
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