Transmission device and antenna down-tilt control system
US10910707B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2017 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Dec 28, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2025/2081
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A transmission device and an antenna down-tilt control system includes: an input component, comprising an inner gear ring, a first gear and a second gear both coaxial with the inner gear ring, and a third gear engaged with the first gear; a unidirectional control mechanism, comprising a first unidirectional component, the first unidirectional component comprising a first rotating member that can unidirectionally rotate in a first rotation direction, the first rotating member being fixedly connected to the inner gear ring; an output component, comprising at least two fourth gears arranged at an interval in a circumferential direction, the third gear being selectively engaged with any one of the fourth gears; and a rotary component, comprising a fifth gear and a rotary box.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.