公开(公告)号：US4358857A

公开(公告)日：1982-11-09

申请号：US735089

申请日：1958-05-09

申请人： Joseph P. Gleason ,  Harry G. Posthumus

发明人： Joseph P. Gleason ,  Harry G. Posthumus

IPC分类号： H04K1/00

CPC分类号： H04K1/006

摘要： 1. In combination, a first source for producing a first signal representative of intelligence to be transmitted from one point to another, second source for producing a binary carrier signal having a first voltage level and a second voltage level, means responsive to the first signal and to the binary carrier signal for frequency-modulating the carrier signal in accordance with the first signal to produce a modulated intelligence signal having first and second voltage levels and exhibiting transitions between the same, a third source for producing a binary encoding signl having first and second voltage levels and exhibiting transitions between such levels in conformance with an apparently random predetermined sequence of variations in the encoding signal between the first and second voltage levels at different multiples of a particular time interval, and circuit means coupled to said modulating means and to said third source for inverting the voltage level of the encoding signal from the first voltage level to the second voltage level and from the second voltage level to the first voltage level and upon the simultaneous occurrence of the second voltage level in the intelligence signal to produce an encoded intelligence signal.

摘要翻译： 组合地，用于产生表示要从一个点发送到另一个点的智能的第一信号的第一源，用于产生具有第一电压电平和第二电压电平的二进制载波信号的第二源，用于响应于第一信号 以及用于根据第一信号对载波信号进行频率调制的二进制载波信号，以产生具有第一和第二电压电平并在其之间呈现转换的调制智能信号，第三源用于产生具有第一和第二信号的二进制编码符号 第二电压电平并且在这样的电平之间呈现符合在特定时间间隔的不同倍数处的第一和第二电压电平之间的编码信号中的显然随机的预定的变化序列的转换，以及耦合到所述调制装置和所述 用于反转来自t的编码信号的电压电平的第三源 他的第一电压电平达到第二电压电平，从第二电压电平到第一电压电平，并且在智能信号中同时出现第二电压电平以产生编码的智能信号。

公开(公告)号：US4245346A

公开(公告)日：1981-01-13

申请号：US172061

申请日：1962-02-07

申请人： Robert J. Grady ,  Harry G. Posthumus

发明人： Robert J. Grady ,  Harry G. Posthumus

IPC分类号： H04K1/02 ,  H04K1/00

CPC分类号： H04K1/02

摘要： 1. In combination: a signal source for producing a signal having characteristic variations representative of intelligence, a first code source for producing a first code signal having apparently random characteristic variations but actually having characteristic variations conforming to a first particular code sequence which repeats after a relatively short time interval, a second code source for producing a second code signal likewise having apparently random characteristic variations but actually having characteristic variations conforming to a second particular code sequence which may repeat after a relatively long time interval, modifying circuit means responsive to the intelligence signal from the signal source and to a coded signal for modifying the characteristics of the coded signal in accordance with the characteristics of the intelligence signal, and means responsive to the signals from the first code source and to the signals from the second code source for initially introducing the first code signal to the modifying means for modification of such signal in accordance with the characteristics of the intelligence signal and of the first code signal and for subsequently introducing the second code signal to the modifying means for modification of the second code signal in accordance with the characteristics of the intelligence signal.

摘要翻译： 1.组合：用于产生具有代表智能的特征变化的信号的信号源，用于产生具有明显随机特征变化但实际上具有符合第一特定代码序列的特征变化的第一代码信号的第一代码源， 相对短的时间间隔，用于产生第二代码信号的第二代码源，同样具有明显随机的特征变化，但实际上具有符合在相对长的时间间隔之后可能重复的第二特定代码序列的特征变化，修改响应于智能的电路装置 来自信号源的信号和用于根据智能信号的特性修改编码信号的特性的编码信号，以及响应于来自第一代码源的信号和来自第二代码源的信号的装置，用于起始 介绍 根据智能信号和第一代码信号的特性将第一代码信号转换到修改装置以修改这种信号，并且随后将第二代码信号引入修改装置，以修改第二代码信号 具有智能信号的特点。