Apparatus for converting code signal to visual display

Apparatus for converting an International Morse Code signal pattern representative of a letter, number, or symbol to a visual display of such letter, number, or symbol, said signal pattern being made up of individual dot and dash signals, said dash signals being of a dime duration substantially longer than the time duration of said dot signals, said apparatus comprising:

• means for producing a first adjustable time length clock signal for each individual signal of said signal pattern, said first clock signal being preset to be of a time duration between that of said dot and dash signals;
• first resolving means for resolving the time relation of the first signal of said individual dot and dash signals of said signal pattern to said first clock signal, said first resolving means producing a first signal representative of said first individual signal being a dot signal, and producing a second signal representative of said first individual signal being a dash signal;
• second resolving means for resolving the time relation of subsequent signals of said individual dot and dash signals of said signal pattern to said first clock signal, said second resolving means producing first signals representative of said subsequent signals being dot signals, and second signals representative of said subsequent signals being dash signals;
• a universal bidirectional shift register associated with said first and second resolving means for receiving said first or second signal from said first resolving means to load said first or second signal in said shift register and to set the direction that said shift register will shift upon receiving said first and second signals from said second resolving means, and receiving said first and second signals from said second resolving means to generate a given address dependent upon said first and second signals and the order in which they are received, said shift register producing a signal representative of said given address;
• memory means for containing a respective letter, number, or symbol corresponding to each address of said addressor means and receiving said signal from said shift register of said given address, said memory means producing a signal representative of such respective letter, number, or symbol of said given address;
• means for sensing the end of said signal pattern including means for producing a second adjustable time length clock signal for each individual signal of said signal pattern, said second clock signal being preset to be of a time relation substantially greater than said first clock signal, means for receiving said second clock signal and said signals of said signal pattern, said receiving means producing a signal indicative of the end of said signal pattern when no signal from said signal pattern is received by the end of said second clock signal;
• and
• display means, associated with said memory means and said sensing means, for receiving said signal representative of said respective letter, number, and said signal from said receiving means and producing a visual display of said respective letter, number, or symbol when said sensing means senses the end of said signal pattern.