Data entry and display control circuit
First Claim
1. A data entry and display control circuit for use in a telephone including a plurality of switches each being operative to successively provide a plurality of appearances of a switch signal, and a keypad being operative to provide a plurality of character signals, said telephone being operative to provide a plurality of features, each in response to operation of a different switch, said data entry and display control circuit comprising:
- storage means having a plurality of storage locations and being operative to store a plurality of feature codes, each being associated with one of said plurality of features;
a microprocessor connected between said switches and said storage means, and operative in response to the occurrence, in succession for each switch, of a first appearance of predetermined duration of said switch signal, at least one pair of character signals having a predetermined relationship to one of said feature codes, and a second appearance of predetermined duration of said switch signal, to store in said storage means a date code associating said switch with said one of said feature codes, whereby each switch is programmed to operate an associated feature; and
a display screen, connected to said microprocessor, and including a positionable cursor;
said microprocessor being further operative in response to predetermined pairs of character signals to vary the position of said cursor, and being further operative in response to other predetermined pairs of character signals to delete or insert data, as defined by a subsequent pair of characters, at the location indicated by the cursor.
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0 Petitions
Accused Products
Abstract
A data entry and display control circuit for use in a telephone having a keypad and a plurality of features and pushbuttons. Each button can be programmed to execute one of the features. The telephone also includes a microprocessor and visual and audible prompting devices. These devices are operated by the microprocessor in response to prolonged operation of a selected pushbutton. Keypad initiated programming signals are then provided to both identify the feature to be assigned to the selected pushbutton and to control display functions. The microprocessor subsequently causes the assigned feature to be performed in response to momentary operation of the selected pushbutton. It also causes the cursor to move in response to the display function control signals.
42 Citations
21 Claims
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1. A data entry and display control circuit for use in a telephone including a plurality of switches each being operative to successively provide a plurality of appearances of a switch signal, and a keypad being operative to provide a plurality of character signals, said telephone being operative to provide a plurality of features, each in response to operation of a different switch, said data entry and display control circuit comprising:
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storage means having a plurality of storage locations and being operative to store a plurality of feature codes, each being associated with one of said plurality of features; a microprocessor connected between said switches and said storage means, and operative in response to the occurrence, in succession for each switch, of a first appearance of predetermined duration of said switch signal, at least one pair of character signals having a predetermined relationship to one of said feature codes, and a second appearance of predetermined duration of said switch signal, to store in said storage means a date code associating said switch with said one of said feature codes, whereby each switch is programmed to operate an associated feature; and a display screen, connected to said microprocessor, and including a positionable cursor; said microprocessor being further operative in response to predetermined pairs of character signals to vary the position of said cursor, and being further operative in response to other predetermined pairs of character signals to delete or insert data, as defined by a subsequent pair of characters, at the location indicated by the cursor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification