Telecommunications – Receiver or analog modulated signal frequency converter – Measuring or testing of receiver
Reexamination Certificate
2007-01-02
2007-01-02
Gelin, Jean (Department: 2617)
Telecommunications
Receiver or analog modulated signal frequency converter
Measuring or testing of receiver
C455S277200, C455S296000, C455S067110
Reexamination Certificate
active
10107393
ABSTRACT:
An alerting device allowing easy estimation of possible interference and useful suggestions to eliminate deteriorated communication quality due to interference is disclosed. A signal including a band used by a target radio communication system is selected from a received signal based on a prescribed system specification of the radio communication system. A detected signal level of the selected signal is detected and compared with the prescribed interference level. When the detected signal level is greater than the prescribed interference level, it is determined that interference occurs. Further, an interference source is estimated by analyzing the selected signal with respect to time and frequency components.
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Okanoue Kazuhiro
Yamazaki Shuntaro
Bhattacharya Sam
Gelin Jean
NEC Corporation
Young & Thompson
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