Telecommunications – Wireless distribution system – Receiver for satellite broadcast
Reexamination Certificate
2007-07-17
2007-07-17
Sobutka, Philip J. (Department: 2618)
Telecommunications
Wireless distribution system
Receiver for satellite broadcast
C455S188100, C455S190100, C455S315000, C455S323000
Reexamination Certificate
active
11139560
ABSTRACT:
In a broadcasting satellite converter adapted to be connected to a BS tuner and fed with a power supply voltage signal from the broadcasting satellite tuner, a receiver circuit is controlled by a control circuit. The broadcasting satellite converter comprises a receiver circuit including a mixer, and a plurality of local oscillators connected to the mixer to convert broadcasting satellite signals into intermediate frequency signals, and a control circuit that controls the receiver circuit. The control circuit includes a detector circuit that detects whether a band switching pulse signal is superimposed on the pulse signal, the detector circuit including a converting circuit that converts a frequency of the band switching pulse signal into an integrated value for the detection of the band switching pulse signal. The control circuit further includes a selector circuit that selectively drives one of the local oscillators in accordance with the integrated value obtained in the detector circuit.
REFERENCES:
patent: 5649311 (1997-07-01), Somei
patent: 6957039 (2005-10-01), Imai
patent: 7142808 (2006-11-01), Atarashi
patent: 2005/0164629 (2005-07-01), Hirai
patent: 2006/0009151 (2006-01-01), Hirai
patent: 64-21535 (1989-02-01), None
patent: 4-135328 (1992-05-01), None
patent: 8-293812 (1996-11-01), None
patent: 10-233708 (1998-09-01), None
Copending U.S. Appl. No. 11/174,739, to Masato Hirai filed on Jul. 6, 2005.
Copending U.S. Appl. No. 11/1043,152 to Masato Hirai filed on Jan. 27, 2005.
Japanese Office Action dated May 22, 2006, with partial English-Language translation.
McGinn IP Law Group PLLC
NEC Electronics Corporation
Sobutka Philip J.
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