公开(公告)号：US3624306A

公开(公告)日：1971-11-30

申请号：US3624306D

申请日：1971-01-21

申请人： GEORGE H MYERS

发明人： MYERS GEORGE H

IPC分类号： H04B1/66

CPC分类号： H04B1/66

摘要： A method and system for compressing required bandwidth for signals possessing redundancy, without substantial loss of intelligence or signal-to-noise ratio. This is effected by sampling the input signal to yield an appropriate first group of samples, transforming the said group into a second group of samples displaying reduced power but yet retaining intelligence and signal-to-noise ratio, and then operating upon the transformed sample group to recover original power levels-and in the process reducing required bandwidth. A system is disclosed wherein these operations are effected by applying the input signal to a tapped delay line-the outputs from said line comprising the aforesaid first group of samples. Such outputs are each applied through weighting networks to derive the transformed, low-power, second sample group. After being passed through analog-to-digital converters, the low-power samples, then in parallel binary form, are gated and passed through a suitable delay line to effectively combine the low-power samples into higher power signals of number per unit time reduced in comparison to the original sampling rate.

公开(公告)号：US3476116A

公开(公告)日：1969-11-04

申请号：US3476116D

申请日：1967-11-09

申请人： VICTOR PARSONNET ,  GEORGE H MYERS ,  GERHARD LEWIN

发明人： PARSONNET VICTOR ,  MYERS GEORGE H ,  LEWIN GERHARD

IPC分类号： A61N1/05 ,  A61N1/04 ,  A61N1/36

CPC分类号： A61N1/0565 ,  A61N1/05