Conversation level warning device
US5365219A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1992 |
| Grant date | Nov 15, 1994 |
| Priority date | — |
| Expiry date | Jul 8, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/182
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method and apparatus are provided for warning when the amplitude of conversations exceeds certain values. The apparatus includes a microphone and related circuitry which continuously produce a signal related to the amplitude of the conversation while the apparatus is operational. A comparator continuously compares the signal to a pre-set first value and produces an output as long as the signal indicates that the conversation exceeds a certain amplitude. There is a discriminator responsive to the comparator output which provides a discriminator output when the duration of the comparator output exceeds a pre-determined value. The discriminator is connected to an alarm which produces a warning signal when the discriminator provides the discriminator output. There may also be a second comparator which produces a visual signal when the amplitude of the conversation is above an amplitude which may be below the amplitude which activates the alarm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.