Automatic dial system for a subscriber telephone

An automatic dial system for telephone comprising:

• a. a keyboard array including 0-9 digit keys:
• b. a digit processor selectively coupled to said keyboard array for receiving coded information entered into said keyboard array, said digit processor having at least two modes, a normal mode and a mode selected by mode selection means;
• c. a RAM means having data input terminal means for receiving and storing digital data, data output terminal means for nondestructively transmitting stored data and address terminal means coupled to said digit processor, said digit processor including means for generating a plurality of RAM address signals to said RAM address terminals to retrieve a plurality of stored digits in sequence corresponding to a telephone number for each virtual address location keyed into the 0-9 digit keys of said keyboard array with said digit processor operating in one of said modes;
• and
• d. signal generator means coupled to an output terminal of said digit processor, said signal generator means for generating dial signals corresponding to said stored number sequences in said one mode and for generating dial signals corresponding directly to keyboard array entries from the 0-9 digit keys in said other mode.

An automatic dial system for a telephone comprising:

• a. an integrated circuit digit processor having at least one set of input terminals and at least one set of output terminals;
• b. a keyboard array having a set of 0-9 digit keys selectively coupled to at least one of said input terminals for entering coded information into said digit processor in dependence upon the state of said keys;
• c. RAM means having data input terminal means coupled to at least one of the output terminals of said digit processor, data output terminal means coupled to at least one of the input terminals of said digit processor and address means coupled to a plurality of data output terminals of said digit processor;
• and
• d. signal generator means coupled to at least one output terminal of said digit processor for generating dial signals;
• wherein
• e. said digit processor is responsive to said set of digit keys for generating a selected set of address locations to said RAM corresponding to a keyed in virtual address, storing in said selected set of locations address coded telephone numbers digits keyed in to said set of digit keys and controlling said signal generator in accordance with digit data stored in said RAM at virtual addresses keyed in to said set of digit keys or directly from said keyboard array as said digits are keyed in to said set of digit keys.

An sutomatic dial system for a telephone set comprising:

• a. an integrated circuit calculator system having input and output means and a programmed memory means for controlling the operation of the dial system;
• b. a keyboard array having a plurality of keys selectively coupled to the output means of said calculator system to receive selective scanning signals and to the input means of said calculator system for entering coded information into said calculator system in dependence upon the state of said keys and said scanning signals;
• c. an integrated circuit random access memory means having a data input terminal means coupled to the output of said calculator system, a data output terminal means coupled to the input means of said calculator system and memory location selection means selectively coupled to the output means of said calculator system, said memory means for storing a repertoire of retrievable telephone number sequence;
• and
• d. signal generator means coupled to the output means of said calculator system for generating dial signals in accordance with the output of said calculator system.