Keyboard operated terminal apparatus
First Claim
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1. A keyboard operated terminal apparatus comprising:
- a main memory for storing an N number of data frames, each frame consisting of a given number of characters, each character consisting of a finite number of data bits;
a display memory for storing a selected one frame of said N number of data frames;
said data frames being stored statically in said main memory and display memory when the keyboard is not operated;
means including the keyboard for entering characters of data into said display memory;
means for entering a frame of data into said main memory;
means for shifting N-1 frames of data from said main memory and for recalling a selected frame of data for storage in said display memory;
means for displaying a frame of data statically stored in said display memory;
means for converting said N number of data frames stored statically in said main memory to an audio signal, said converting means being coupled to the output of said main memory; and
means for transmitting said audio signal to an apparatus other than said terminal apparatus;
said display memory, main memory and means for recalling being coupled in a closed feedback loop.
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Abstract
A keyboard operated terminal apparatus includes a main memory for storing a number of frames of data, and a display memory for storing a selected frame of such data. The two memories are coupled in a closed feedback loop, thereby enabling recall, deletion, insertion and display of any selected data frame. Data words are moved through the loop, and the data bits are synchronized by a timing clock circuit.
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Citations
8 Claims
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1. A keyboard operated terminal apparatus comprising:
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a main memory for storing an N number of data frames, each frame consisting of a given number of characters, each character consisting of a finite number of data bits; a display memory for storing a selected one frame of said N number of data frames; said data frames being stored statically in said main memory and display memory when the keyboard is not operated; means including the keyboard for entering characters of data into said display memory; means for entering a frame of data into said main memory; means for shifting N-1 frames of data from said main memory and for recalling a selected frame of data for storage in said display memory; means for displaying a frame of data statically stored in said display memory; means for converting said N number of data frames stored statically in said main memory to an audio signal, said converting means being coupled to the output of said main memory; and means for transmitting said audio signal to an apparatus other than said terminal apparatus; said display memory, main memory and means for recalling being coupled in a closed feedback loop. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification