Method and system for determining a time delay between...

Details Method and system for determining a time delay between... Method and system for determining a time delay between...

2007-11-27

2010-11-02

Pham, Tuan A (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Having measuring, testing, or monitoring of system or part

C455S060000, C455S067110, C455S452200, C455S042000, C375S279000, C375S283000, C375S308000, C375S329000

Reexamination Certificate

active

07826800

ABSTRACT:
The present application describes a method and system for determining a time delay between a transmission and a reception of an RF signal in a noisy environment. The method comprises: transmitting the RF signal; shifting a phase of the RF signal after a first time period of the transmitting of the RF signal, starting at a known transition time; receiving a received RF signal comprising a received phase shift corresponding to the shifting of the phase of the transmitted RF signal, the received phase shift occurring at a receive transition time equivalent to a sum of the time delay and the known transition time; determining the receive transition time by detecting a time corresponding to the received phase shift; and calculating the time delay using the receive transition time and the known transition time.

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