Broadcast receiver with smart antenna beam scanning
US7702278B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2005 |
| Grant date | Apr 20, 2010 |
| Priority date | — |
| Expiry date | Sep 9, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0822
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A broadcast receiver includes a smart antenna, a tuner which extracts a signal of predetermined channel from among airwaves received by the smart antenna, a signal processing unit which processes the signal extracted by the tuner, and a control unit, in a case the airwave has become unreceivable, to set a pointing direction of the antenna on that occasion as a reference direction, to shift the pointing direction a predetermined magnitude counterclockwise or clockwise, and to decide propriety of reception of the airwave. The control unit iterates counterclockwise and clockwise shifts alternately in a region near the reference direction, while the shift magnitude of the pointing direction is being increased in succession and so that the direction as to which the propriety of reception has been decided once may not be included in the directions of the shifts, until the reception of the airwave becomes possible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.