Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Year | Description |
| 1995 | Invention patented by Hong-Seok Choi on February 15th, 1995. Abstract: The audible alarm apparatuses include fire sensing portion, location setting portion for setting a location of the fire sensing portion, system controller for providing information about the location of the fire outbreak and controlling interface devices, DTMF generator, DTMF receiver, voice data storage portion responsive to the information outputted from the system controller for providing a voice data, parallel to serial converter, digital to analog converter, and amplifier, etc. The apparatuses give and take the information about the location of the fire outbreak directly with each other via a telephone line without a host computer. |
| Source: selected by the editor from original sources. | |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
