Apparatus for transmitting digital data
US4622681A · kind A · utility
12Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1984 |
| Grant date | Nov 11, 1986 |
| Priority date | — |
| Expiry date | Apr 26, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/1123
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus is disclosed for transmitting digital data by radio frequency electromagnetic radiation, wherein the radio frequency transmitter of the digital data is electrically isolated from the source of the digital data. The radio frequency transmission is accomplished by symmetrical frequency modulation of a high frequency carrier, wherein the range of the symmetrical frequency modulation is responsive to the logical level of the digital data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.