Simultaneous multidirectional communication apparatus
US5867768A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1996 |
| Grant date | Feb 2, 1999 |
| Priority date | — |
| Expiry date | Sep 10, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/725
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A communication apparatus includes a plurality of transmitter-receivers operatively coupled together so that they are simultaneously communicatable over-the-air with one another by way of an interexchange repeater module, wherein one of such transmitter-receivers comes with a display device for providing information to the user, and a telephone connector for connecting the transmitter-receiver to the public telephone communication network. A sound-shielded headset is employed in the transmitter-receiver. This headset includes an audio input/output section with a microphone, speakers and the like, and a transmitter/receiver function section for executing signal processing tasks required for communications. Upon reception of a telephone signal, the transmitter-receiver is connected to the telephone connector by means of a cable-wiring, optical coupling or radio-wave coupling scheme providing voice communications with the outside parties. In case where the telephone connector is equipped with a known telephone set, voice communications will be available by entry of phone numbers over either external public lines or extension lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.