Portable automated dialer with tone completion indicator
US5825872A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 13, 1996 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Aug 13, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q3/72
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A portable automated dialer capable of generating a predetermined sequence of tones including DTMF tones into the microphone of a telephone. The automated dialer includes a signal generator for generating a series of tone signals, a speaker electrically connected to the signal generator for transmitting the tone signals as a series of audible tones and a tone completion indicator operating in at least a first and second state such that the tone completion indicator changes from the first state to the second state after the signal generator generates a last tone signal in the series of tone signals. The indicator may be a visual, auditory, tactile or even olfactory indicator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.