公开(公告)号：WO1982000088A1

公开(公告)日：1982-01-21

申请号：PCT/US1980000839

申请日：1980-07-03

Applicant: PRIME MICROELECTRONIC INSTRUMENTS INC

Inventor： PRIME MICROELECTRONIC INSTRUMENTS INC ,  STEUER R

IPC: A61B05/02

CPC classification number: G04G21/025 ,  A61B5/024 ,  A61B5/02438 ,  A61B5/681 ,  A61B2560/0468

Abstract: A cardiotachometer for indicating heart rate of a user in beats per minute. The cardiotachometer comprises a sensor (12), placed on the body of the user, for producing an electrical signal indicative of the heart rate of the user. Circuitry (28) is provided for converting the electrical signal into first and second digital signals. 60/t computation circuitry (34) responds to the first and second digital signals and produces a third digital signal having a varying frequency representative of the number of heart beats per minute. An up-counter (38) converts the third digital signal into a plurality of binary number signals, each bit of which is stored in a series of shift registers (48). A compare (54) using a plurality of exclusive OR gates, compares each of the stored binary number signals with the most recent binary number signal, from the up-counter, to determine if a plurality of compared signals are within a predetermined percentage of each other. Finally, a display (76) is provided for displaying the most recent binary number signal, when the plurality of compared signals are within the predetermined percentage of each other. Further provision is made for display of both elapsed time and time of day.

Abstract translation: 用于以每分钟的节拍指示用户的心率的心脏测速计。 心脏移动计包括放置在用户身上的传感器（12），用于产生指示用户心率的电信号。 电路（28）用于将电信号转换为第一和第二数字信号。 60 / t计算电路（34）响应第一和第二数字信号并产生具有代表每分钟心跳次数的变化频率的第三数字信号。 上计数器（38）将第三数字信号转换成多个二进制数信号，每个二进制数信号被存储在一系列移位寄存器（48）中。 使用多个异或门的比较（54）将来自上计数器的每个存储的二进制数信号与最新的二进制数信号进行比较，以确定多个比较的信号是否在每个的预定百分比之内 其他。 最后，当多个比较信号在彼此的预定百分比之内时，显示器（76）用于显示最新的二进制数信号。 进一步规定显示经过的时间和时间。