Transmission system for a body-worn electronic device
US11342949B2 · kind B2 · utility
0Cited by
1References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2018 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Jun 25, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2225/51
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A body-worn electronic device, including a loop antenna and a transmitter. The overall physical length of the loop antenna is less than 75% of the vacuum wavelength of a lower limit frequency of the operating frequency range of the transmitter, while the electrical length of the antenna is from 0.9 to 1.1 times the guided wavelength of the lower limit frequency of the operating frequency range of the transmitter. The loop antenna includes a plurality of conductors which are connected in series by inductors so as to increase the electrical length of the loop antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.