Pulse or digital communications – Testing – Signal noise
Patent
1995-12-20
1997-12-02
Chin, Stephen
Pulse or digital communications
Testing
Signal noise
375285, 375296, 375346, 375349, 370201, 370252, 455 63, 455 673, 4552263, 455295, 455303, H04B 346
Patent
active
056944217
ABSTRACT:
A frequency-selective interference signal detecting apparatus and method thereof generates as many tone signals as the number of a frequency-selective interference signals at the transmission side of a transmission system and one tone signal corresponding to an optional frequency at an occupied band frequency of the transmission system, transmits all generated tone signals to a receiving side of the transmission system through the transmission channel selectively, computes an SNR with regard to each tone signal by receiving these tone signals at the receiving side, compares the calculated SNR with a preestablished reference value, detects whether or not each of the frequency-selective interference signals exist, provides the degree of such interference, and makes several frequency-selective interference signals detectable so as to raise transmission efficiency of a data signal in the transmission system.
REFERENCES:
patent: 5375166 (1994-12-01), Odaohara
patent: 5519730 (1996-05-01), Jasper et al.
patent: 5519731 (1996-05-01), Cioffi
patent: 5559834 (1996-09-01), Edler
Chin Stephen
Le Amanda T.
Samsung Electronics Co,. Ltd.
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