×

Apparatus for instruction in use of telephone

  • US 5,420,915 A
  • Filed: 11/25/1992
  • Issued: 05/30/1995
  • Est. Priority Date: 11/25/1992
  • Status: Expired due to Fees
First Claim
Patent Images

1. A self-contained portable apparatus for demonstrating the use of a telephone by simulating the operation of an active telephone line, comprising:

  • (a) tone generator means for generating a dial tone, busy tone, and ring tone in a telephone;

    (b) control processor means for operatively controlling said tone generator means and selectively generating a respective one of said tones;

    (c) keypad means for accessing said control processor means, said keypad means including a plurality of keys;

    (d) said control processor means including mode select means for operating in a manual mode, an automatic mode, and a program mode, said manual mode configured for operatively controlling said tone generator means in response to activation of at least one of said keys in said keypad means, said automatic mode configured for simulating operation of an active telephone line, said program mode configured for storing at least one telephone number in said control processor means;

    (e) power ringer means for activating a ringer circuit in said telephone, said power ringer means operatively responsive to said tone generator means;

    (f) interface means for operationally interfacing said tone generator means, said control processor means, said keypad means, said power ringer means, and said telephone; and

    off-hook detector means for detecting off-hook status of said telephone, saidoff-hook detector means electrically coupled to said interface means, said off-hook detector means electrically coupled to said control processor means, said busy tone being generated in response to detection of said off-hook status.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×