Abstract A pulse code generator for generating morse code logic having a voltage-controlled clock pulse generator, the output of which is coupled as a shift pulse to a digital shift register and through a binary counter to the signal input of the digital shift register, each stage of the digital shift register having an output which can be selectably coupled to an output OR gate and to a feedback OR gate; the output of the feedback OR gate being coupled to the controlled input of the voltage-controlled clock pulse generator to control the voltage-controlled clock pulse generator''s offtime or ontime by the presence or absence of a pulse at the control input; the code generated is determined by which stages of the digital shift register are coupled to the feedback OR gate and to the output OR gate.
Inventors
👤 William J Thompson
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-31 00:10
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/78
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A pulse code generator comprising: a variable frequency clock pulse generator having a control input and an output; a binary counter having an output and an input connected to said clock pulse generator output; a shift register having a plurality of stages and an input coupled to said binary counter output, said shift register having coupling means connected between at least one of said plurality of stages outputs and said pulse generator control input for controlling the frequency of said clock pulse generator; and an output means coupling alternate outputs of said plurality of stages of said shift register.
Claim 2
Dependent Claim
99 words
A pulse code generator comprising: a variable frequency clock pulse generator having a control input and an output; a binary counter having an output and an input connected to said clock pulse generator output; a shift register having a plurality of stages and an input coupled to said binary counter output, said shift register having coupling means connected between at least one of said plurality of stages outputs and said pulse generator control input for controlling the frequency of said clock pulse generator; and an output means coupling alternate outputs of said plurality of stages of said shift register.