Invention Grant
US08868649B2 Broadcasting events affecting public safety 有权
影响公共安全的广播事件

Broadcasting events affecting public safety
Abstract:
A system includes a marker having a marker range. The marker is configured to receive a message from an operation center, wherein the message identifies an event associated with the marker range. A device is configured to receive the message from the marker in response to the device entering the marker range and determine whether to communicate that message by the device.
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