Portable telephone with moving status detection function

Details Portable telephone with moving status detection function Portable telephone with moving status detection function

2005-08-23

2005-08-23

Appiah, Charles N. (Department: 2686)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S444000, C455S456600

Reexamination Certificate

active

06934547

ABSTRACT:
A portable telephone allowing easy and accurate estimation of its moving speed at the moment when an incoming call is received is disclosed. A moving status detector is provided which detects a moving status of the portable telephone based on measured reception signal strengths, each of which is measured on a sequentially selected one of N neighboring radio channels that are previously designated by the base station at a timing other than a communication timing of the designated radio channel in response to receipt of a call setup signal for an incoming call from the base station using the designated radio channel.

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