Telephone handset acoustic coupling cup
US4246444A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 26, 1979 |
| Grant date | Jan 20, 1981 |
| Priority date | — |
| Expiry date | Jan 26, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/2155
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telephone handset acoustic coupling cup adapted for use as part of an acoustic data coupler wherein the cup has a flexible, gripping lip surrounding an opening for receiving a telephone handset transmitter or receiver case. Each of two acoustic coupling cups may additionally be eccentrically rotatably mounted on a case in a manner that their openings may be varied in distance from one another by rotating the cups with respect to the case. The cups may also be flexible in a manner to be bendable with respect to said case, all with the view of providing an acoustic data coupler that can accept a wide variety of different sizes and shapes of telephone handsets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.