Radio apparatus

Details Radio apparatus Radio apparatus

2004-02-17

2008-08-26

Urban, Edward (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Measuring or testing of receiver

C455S067110, C455S296000, C375S225000

Reexamination Certificate

active

07418249

ABSTRACT:
A demodulator demodulates a received signal. A decoder performs inverse-spread spectrum processing on a demodulated signal. The decoder calculates a CIR value and outputs it to a CPU and a predictor. The predictor derives a next CIR value of the next reception time slot from the CIR value. The next CIR value is converted into a DRC with using a CIR-DRC conversion table. The CPU processes reception data internally or supplies those data to an externally connected PC via an external IF unit. The CPU determines, on the basis of the CIR value, a communication quality index of which to inform a user, and causes a display unit to display the index by an antenna mark. The index is supplied to the external PC via the external IF unit. Therefore, the user can recognize the communication quality by referencing to the index which indicates variation of the radio environment.

REFERENCES:
patent: 6035183 (2000-03-01), Todd et al.
patent: 6426971 (2002-07-01), Wu et al.
patent: 6463105 (2002-10-01), Ramesh
patent: 6668159 (2003-12-01), Olofsson et al.
patent: 6847809 (2005-01-01), Gurelli et al.
patent: 1123976 (1996-06-01), None
patent: 2002-300644 (2002-10-01), None
patent: 2002-345048 (2002-11-01), None
Japanese Office Action dated Aug. 7, 2007 and its English translation.
Japanese Office Action dated Feb. 15, 2008 with English translation.

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