Telecommunications – Transmitter and receiver at separate stations – Having measuring – testing – or monitoring of system or part
Reexamination Certificate
2011-08-30
2011-08-30
Ghebretinsae, Temesgh (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Having measuring, testing, or monitoring of system or part
C455S067130, C455S067140, C455S423000, C455S226100, C370S241000, C370S251000, C370S400000, C703S013000, C703S014000, C324S309000, C375S346000, C375S350000, C375S232000, C375S347000, C375S343000, C709S212000
Reexamination Certificate
active
08010051
ABSTRACT:
A multi-path simulation system (100) includes a signal generator (10) generating a signal, a power divider (24) connected to the signal generator for dividing the signal into N attenuated sub-signals, N delay lines (26) connected to the power divider delaying the N attenuated sub-signals to simulate the delays resulting from the transmission of the signal in the N paths, P switches (28) connected to the delay lines selecting the attenuated sub-signals delayed by the delay lines, thereby generating selected signals, and a signal combiner (29) connected to the switches combining the selected signals into a single signal. The delay lines are respectively represented by transmission lines disposed on a printed circuit board. A length of the transmission line controls a distance of transmission of the signal. Wherein N is an integer greater than one, and P is an integer equal to or greater than one.
REFERENCES:
patent: 6289062 (2001-09-01), Wang et al.
patent: 7224941 (2007-05-01), Liu
patent: 2004/0228424 (2004-11-01), Baldwin et al.
patent: 2010/0023595 (2010-01-01), McMillian et al.
Chen Huan-Jin
Hsu Mao-Hsiu
Altis Law Group, Inc.
Ghebretinsae Temesgh
Gonzales April G
Hon Hai Precision Industry Co. Ltd.
Hong Fu Jin Precision Industry ( ShenZhen) Co., Ltd.
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