Remote terminal for central dictating system

Details Remote terminal for central dictating system Remote terminal for central dictating system

1994-10-12

1997-01-28

Chan, Wing F.

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

379 75, H04M 1100

Patent

active

055984630

ABSTRACT:
A control unit, connected to a telephone, sends tone signals to a central dictating/recording unit in response to a user pressing buttons on an auxiliary keypad. The auxiliary keypad, in the form of a thin, membrane-type switch unit, adheres to the back of the telephone handset. A substitute coil cord has additional conductors and connects the telephone handset and the auxiliary keypad to the control unit. In response to the user pressing a button on the auxiliary keypad, the control unit simulates the user pressing one or more buttons on the telephone dial by sending the appropriate series of DTMF tones to the dictating/recording unit. The user can reprogram the simulated series of telephone dial button presses sent in response to any auxiliary keypad button being pressed, released, and "clicked" (pressed and then quickly released).

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patent: 4975896 (1990-12-01), D'Agosto, III et al.
patent: 5033077 (1991-07-01), Bergeron et al.
patent: 5265075 (1993-11-01), Bergeron et al.

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