Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2006-01-27
2010-06-08
Nguyen, Duc M (Department: 2618)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S340000, C455S114100, C455S077000
Reexamination Certificate
active
07734311
ABSTRACT:
In a multimode communication apparatus that uses a plurality of wireless communication modes, interference between communications under different wireless communication modes is suppressed, a good transmission/reception state in each of the wireless communication modes is ensured. A multimode communication apparatus (100) includes transmitter sections (33), (43) and receiver sections (32), (42) and a plurality of communication units (70), (80) each being compatible with the wireless communication modes independently of one another. The communication unit (70) includes a variable channel band elimination filter (34) for suppressing, among transmission signals from its own transmitter section (33), a band corresponding to a frequency band of a reception channel that is being received by the receiver section (42) of the other communication unit (80). The variable channel band elimination filter (34) is capable of varying the band that is to be suppressed, in response to a change of the frequency band of the reception channel.
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Nguyen Duc M
Panasonic Corporation
Pearne & Gordon LLP
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