Invention Grant
- Patent Title: Transmission apparatus recognition apparatus, transmission apparatus recognition method, and non-transitory computer readable medium
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Application No.: US17316844Application Date: 2021-05-11
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Publication No.: US11757548B2Publication Date: 2023-09-12
- Inventor: Taichi Ohtsuji , Jun Sakai
- Applicant: NEC Corporation
- Applicant Address: JP Tokyo
- Assignee: NEC CORPORATION
- Current Assignee: NEC CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP 20084332 2020.05.13
- Main IPC: H04B17/391
- IPC: H04B17/391 ; H04W16/18

Abstract:
A transmission apparatus recognition apparatus includes a receiver configured to receives a signal wirelessly transmitted from a transmission apparatus, a signal region detector, a feature extractor, and a recognizer. The signal region detector generates a spectrogram from a received signal received by the receiver, and detects a signal region parameter indicating a specific signal region based on the spectrogram. The feature extractor converts the received signal based on a signal conversion parameter according to the signal region parameter, and extracts a feature from the converted signal. The recognizer calculates a degree of similarity based on the extracted feature and a feature stored in advance, and recognizes the transmission apparatus based on the degree of similarity. The transmission apparatus recognition apparatus adjusts the signal region parameter based on a recognition accuracy of the recognizer.
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