Extendable telephone handset with flexible electrical interconnection and matched impedance acoustical interface
US5586183A · kind A · utility
7Cited by
4References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1996 |
| Grant date | Dec 17, 1996 |
| Priority date | — |
| Expiry date | Apr 10, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/0237
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A compact telephone handset, when not in use, is shorter in length than the distance between a user's ear and mouth and has an extendable boom for lengthening the telephone to a length equal to the distance between the user's ear and mouth. The handset has a receiver device and a microphone device with one of the devices being located on the main body of the handset and the other device being located on a slidable boom which is extendable and retractable relative to the main body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.