Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
Reexamination Certificate
2011-08-02
2011-08-02
Le, Lana (Department: 2614)
Telecommunications
Receiver or analog modulated signal frequency converter
Local control of receiver operation
C455S265000, C455S313000, C455S552100
Reexamination Certificate
active
07991372
ABSTRACT:
A radio receiver for diversity has a first receiving unit and a second receiving unit for diversity-receiving a signal of a radio frequency. The first receiving unit has a first mixer for converting the received signal of the radio frequency into an IF signal of a first intermediate frequency by an upper local method, and a first filter coupled to the output side of the first mixer. The second receiving unit has a second mixer for converting the received signal of the radio frequency into an IF signal of a second intermediate frequency by a lower local method, and a second filter coupled to the output side of the second mixer. The radio receiver can improve receiving sensitivity.
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Japanese Office action for JP2006-036286 dated Jan. 18, 2011.
Fujii Takeshi
Ozeki Hiroaki
Le Lana
Pansonic Corporation
Pearne & Gordon LLP
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