Telecommunications – Receiver or analog modulated signal frequency converter – With wave collector
Reexamination Certificate
2011-08-16
2011-08-16
Phu, Sand D (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
With wave collector
C455S552100, C455S553100, C455S422100, C455S039000, C370S338000
Reexamination Certificate
active
08000673
ABSTRACT:
It is a theme of the present invention to provide a diversity receiving device and a receiving scheme switching method, capable of attaining a power saving by executing a switching between a diversity reception and a single reception with high accuracy. A receiving scheme switching portion (112) switches a receiving mode between a single reception and a diversity reception based on a receiving scheme switching threshold, updates the receiving scheme switching threshold based on the receiving rate calculated by a receiving rate calculating portion (110), switches the receiving mode into the single reception in which respective ones of antennas (101, 105), radio demodulating portions (102, 106), and decoding portions (103, 107) are employed respectively and also turns OFF respective power supplies of the remaining antenna (101or105), the remaining radio demodulating portion (102or106), and the remaining decoding portion (103or107) when the received quality calculated by the received quality calculating portion (111) exceeds the receiving scheme switching threshold, and switches the receiving mode into the diversity reception in which the antennas, the radio demodulating portions, and the decoding portions are employed in both branches when the received quality is below the receiving scheme switching threshold.
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International Search Report.
Imagawa Yasumi
Izumi Keiko
Kaga Satoshi
Nakayama Kazuhiko
Sasaki Makoto
Panasonic Corporation
Pearne & Gordon LLP
Phu Sand D
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