Ear mounted RF receiver
US5313663A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 8, 1992 |
| Grant date | May 17, 1994 |
| Priority date | — |
| Expiry date | May 8, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/086
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radio frequency receiving device which is totally self contained and is fully supported at a diverging opening of a user's ear extending from the ear canal. The device includes an elongate casement having a lower portion and an upper portion at a total length of less than two inches. The casement is constructed of a top portion and a bottom portion, the top portion being deflected from the bottom portion by an acute angle whose value is between the range of 10 to 30 degrees. The bottom portion includes a speaker device mounted at a proximal side thereof and being configured to frictionally fit at the diverging ear opening in close proximity to the skull, with the upper half resting against the ear or being in frictional contact with an upper lip of the ear extending from the top cartilage. The device includes a printed circuit board contained within the casement, a battery compartment, on/off power and volume switches and a tuning circuit for providing selection of desired frequency. The total structure is housed within the casement and weighs less than 2.5 ounces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.