Accession Number:

AD0163615

Title:

Digital Filter and Pulse Width Discriminator.

Descriptive Note:

Patent,

Corporate Author:

OFFICE OF THE SECRETARY OF THE ARMY WASHINGTON D C

Personal Author(s):

Report Date:

1971-01-12

Pagination or Media Count:

5.0

Abstract:

The patent describes a digital filter for use in the rate monitoring portion of an electrical heart monitor. The filter comprises a pulse width discriminator coupled to receive the outputs of a pair of Schmitt triggers and includes a first timer for rejecting short duration pulses. The timer output is only activated when signals are received from both triggers. A second and third timer combine to reject subsequent long duration pulses for a predetermined time after an original pulse of intermediate duration.

Subject Categories:

  • Electrical and Electronic Equipment
  • Biomedical Instrumentation and Bioengineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE