| 发明名称 |
Radio Beacon for Direction Detection |
| 摘要 |
In embodiments of radio beacon for direction detection, a beacon differentiates a first packet in a sequence of packets for transmission. The beacon transmits the sequence of packets using an omnidirectional antenna and a number of directional antennas. The beacon transmits the differentiated, first packet using the omnidirectional antenna and transmits each of the other packets in the sequence of packets using a different one of the directional antennas for each transmission of the other packets. A mobile device receives the sequence of packets from the beacon and determines a direction of the mobile device relative to the beacon. |
| 申请公布号 |
US2017079001(A1) |
申请公布日期 |
2017.03.16 |
| 申请号 |
US201514855129 |
申请日期 |
2015.09.15 |
| 申请人 |
Google Inc. |
发明人 |
Lewis Peter Gregory |
| 分类号 |
H04W64/00;H04W40/24;H04W4/00;H04W4/02 |
主分类号 |
H04W64/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of determining a direction from a beacon comprising:
differentiating, at the beacon, a first packet in a sequence of packets, the sequence of packets comprising the first packet and a plurality of additional packets; transmitting the sequence of packets from the beacon, said transmitting comprising:
transmitting the differentiated first packet using a first antenna; andtransmitting each of the additional packets in the sequence of packets using a different one of a plurality of directional antennas. |
| 地址 |
Mountain View CA US |
