Telecommunications – Wireless distribution system – Receiver for satellite broadcast
Reexamination Certificate
2003-04-02
2009-12-15
Trinh, Tan (Department: 2618)
Telecommunications
Wireless distribution system
Receiver for satellite broadcast
C455S150100, C455S154100, C455S131000, C455S140000, C348S553000, C348S731000
Reexamination Certificate
active
07634225
ABSTRACT:
The present invention provides a receiver that includes a plurality of tuners for receiving broadcasts such as satellite broadcast. A tuner circuit (1) includes an input terminal (11) for inputting a broadcast wave in which a video signal and/or an audio signal are modulated in a predetermined format, and a mount layer (13) on which a main circuit (12) for selecting, from the broadcast wave, a video signal and/or an audio signal included in a predetermined frequency band is mounted. In the tuner circuit (1), a first ground layer (15) is disposed, through a first dielectric layer (14), on the surface opposite to that on which the main circuit (12) of the mount layer (13) is arranged, and a second ground layer (17) is disposed through a second dielectric layer, thereby suppressing mutual interference between tuners.
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Imai Tadashi
Kawakami Satoru
Frommer William S.
Frommer & Lawrence & Haug LLP
Sony Corporation
Trinh Tan
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