Radio Frequency (RF) Emitter Detector

Patent metadata

Field	Value
Publication number	US-2025184721-A1
Application number	US-202519043387-A
Country	US
Kind code	A1
Filing date	Jan 31, 2025
Priority date	May 14, 2018
Publication date	Jun 5, 2025
Grant date	—

Abstract

In accordance with some embodiments, an apparatus for privacy protection includes a peripheral interface connectable to a second device. In some embodiments, the second device is operably connectable to a personal communication device and the peripheral interface provides characteristics of communication signals associated with the personal communication device to the second device. The apparatus also includes a radio frequency (RF) detection device operable to detect energy carrying a communication signal to or from the personal communication device. The apparatus further includes a controller, coupled to the peripheral interface and the RF detection device, operable to scan an RF spectrum of the communication signal, received by the RF detection device, in order to identify communications associated with the personal communication device, and generate a notification upon determining that abnormal activities exist in the communications, wherein the notification triggers interruption of the communication signal.

First claim

What is claimed is:

1 . A method comprising:
at a user equipment sniffer (UES) with a housing arranged to hold a personal communication device, wherein the UES is connectable to a remote server: detecting radio frequency (RF) energy of a communication signal carrying wireless communications with the personal communication device; scanning a RF spectrum of the communication signal corresponding to a pre-assigned frequency range; deriving RF characteristics of the wireless communications within the scanned RF spectrum; and determining abnormal activities in the wireless communications based on the RF characteristics, including sending the RF characteristics of the wireless communications to the remote server.

2 . The method of claim 1 , wherein detecting the RF energy of the communication signal carrying the wireless communications with the personal communication devices includes:
comparing the RF energy with a threshold to identify at least one energy burst; and evaluating whether the at least one energy burst matches a signal protocol signature of a communication protocol.

3 . The method of claim 1 , wherein the pre-assigned frequency range is assigned by the remote server.

4 . The method of claim 1 , wherein the RF characteristics include one or more of a communication protocol, a frequency, a bandwidth, a peak-to-average-power ratio (PAPR), and a power level of the RF energy.

5 . The method of claim 1 , wherein detecting the RF energy of the communication signal includes detecting one or more of timestamps and locations associated with one or more of a RF emitter transmitting the communication signal and UES detecting the RF energy.

6 . The method of claim 5 , wherein the remote server calculates a location of the RF emitter associated with the wireless communications with the personal communication device based on the timestamps and the locations.

7 . The method of claim 1 , further comprising:
preventing the personal communication device from the wireless communications upon determining the abnormal activities in the wireless communications.

8 . The method of claim 1 , wherein the remote server aggregates a set of RF characteristics from a plurality of UESs and generates a map indicating the abnormal activities.

9 . The method of claim 1 , wherein the remote server assigns a different UES to scan a different frequency range.

10 . A device comprising:
a housing arranged to hold a personal communication device; one or more communication components, at least partially supported by the housing, communicatively connectable to a remote server and the personal communication device; a radio frequency (RF) detection circuitry configured to detect RF energy of a communication signal carrying wireless communications with the personal communication device; and a controller operable to scan a RF spectrum of the communication signal corresponding to a pre-assigned frequency range, derive RF characteristics of the wireless communications within the scanned RF spectrum, and determine abnormal activities in the wireless communications based on the RF characteristics, including sending the RF characteristics of the wireless communications to the remote server.

11 . The device of claim 10 , wherein detecting the RF energy of the communication signal carrying the wireless communications with the personal communication devices includes:
comparing the RF energy with a threshold to identify at least one energy burst; and evaluating whether the at least one energy burst matches a signal protocol signature of a communication protocol.

12 . The device of claim 10 , wherein the pre-assigned frequency range is assigned by the remote server.

13 . The device of claim 10 , wherein the RF characteristics include one or more of a communication protocol, a frequency, a bandwidth, a peak-to-average-power ratio (PAPR), and a power level of the RF energy.

14 . The device of claim 10 , wherein detecting the RF energy of the communication signal includes detecting one or more of timestamps and locations associated with one or more of a RF emitter transmitting the communication signal and UES detecting the RF energy.

15 . The device of claim 14 , wherein the remote server calculates a location of the RF emitter associated with the wireless communications with the personal communication device based on the timestamps and the locations.

16 . The device of claim 10 , wherein the controller is further configured to:
prevent the personal communication device from the wireless communications upon determining the abnormal activities in the wireless communications.

17 . A non-transitory computer readable storage medium having instructions stored therein, wherein when the instructions are executed by a device including a housing arranged to hold a personal communication device, one or more communication components, at least partially supported by the housing, communicatively connectable to a remote server and the personal communication device, a radio frequency (RF) detection circuitry configured to detect RF energy of a communication signal carrying wireless communications with the personal communication device, and a controller, wherein the instructions, when executed by the controller, cause the device to perform operations comprising:
scanning a RF spectrum of the communication signal corresponding to a pre-assigned frequency range; deriving RF characteristics of the wireless communications within the scanned RF spectrum; and determining abnormal activities in the wireless communications based on the RF characteristics, including sending the RF characteristics of the wireless communications to the remote server.

18 . The computer readable storage medium of claim 17 , wherein detecting the RF energy of the communication signal carrying the wireless communications with the personal communication devices includes:
comparing the RF energy with a threshold to identify at least one energy burst; and evaluating whether the at least one energy burst matches a signal protocol signature of a communication protocol.

19 . The computer readable storage medium of claim 17 , wherein the pre-assigned frequency range is assigned by the remote server.

20 . The computer readable storage medium of claim 17 , wherein the RF characteristics include one or more of a communication protocol, a frequency, a bandwidth, a peak-to-average-power ratio (PAPR), and a power level of the RF energy.

Assignees

• Ppip Llc

Inventors

• Fong Michael
• Fong Neric Hsin-Wu
• Idukuda Sowjitha
• Singh Shoor Veer

Classifications

• H04W72/20

  Control channels or signalling for resource management · CPC title

• H04W72/04

  Wireless resource allocation · CPC title

• H04L5/0048

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• H04L5/005

  of common pilots, i.e. pilots destined for multiple users or terminals · CPC title