Telecommunications – Wireless distribution system – Receiver for satellite broadcast
Reexamination Certificate
2005-07-06
2008-09-16
Anderson, Matthew (Department: 2618)
Telecommunications
Wireless distribution system
Receiver for satellite broadcast
C455S188100, C348S735000, C324S076410
Reexamination Certificate
active
07426368
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 includes a mixer, and a plurality of local oscillators connected to the mixer to convert broadcasting satellite signals into intermediate frequency signals. The receiver circuit is controlled by a control circuit including a detector circuit and a selector circuit. The detector circuit detects whether a band switching pulse signal is superimposed on the pulse signal, and has a period counting circuit that produces numerical count data representing a period of a frequency of the band switching pulse signal. The selector circuit selectively drives one of the local oscillators in accordance with the numerical count data obtained in the detector circuit.
REFERENCES:
patent: 4249259 (1981-02-01), Oda et al.
patent: 4259734 (1981-03-01), Harmel
patent: 4264976 (1981-04-01), Yamashita
patent: 4406018 (1983-09-01), Motohashi
patent: 4547777 (1985-10-01), Lamiraux
patent: 4608710 (1986-08-01), Sugiura
patent: 4734638 (1988-03-01), Weber
patent: 4823135 (1989-04-01), Hirashima et al.
patent: 5014350 (1991-05-01), Nezu
patent: 5036334 (1991-07-01), Henderson et al.
patent: 5053782 (1991-10-01), Levinberg et al.
patent: 5107335 (1992-04-01), Nishiyama et al.
patent: 5206954 (1993-04-01), Inoue et al.
patent: 5276714 (1994-01-01), Hori et al.
patent: 5345591 (1994-09-01), Tsurumaki et al.
patent: 5519405 (1996-05-01), Matsubara et al.
patent: 5649311 (1997-07-01), Somei
patent: 5649318 (1997-07-01), Lusignan
patent: 5940737 (1999-08-01), Eastman
patent: 6009304 (1999-12-01), Kato
patent: 6157229 (2000-12-01), Yoshikawa
patent: 6282293 (2001-08-01), Itoh et al.
patent: 6490010 (2002-12-01), Shibuya et al.
patent: 6710814 (2004-03-01), Ueno et al.
patent: 6957039 (2005-10-01), Imai
patent: 7142808 (2006-11-01), Atarashi
patent: 7245872 (2007-07-01), Hirai
patent: 7298130 (2007-11-01), Komatsu et al.
patent: 2002/0047729 (2002-04-01), Hirata et al.
patent: 2002/0172196 (2002-11-01), Komatsu et al.
patent: 2003/0206632 (2003-11-01), Itoh et al.
patent: 2003/0228131 (2003-12-01), Miyazawa
patent: 2004/0075771 (2004-04-01), Miyabayashi
patent: 4-135328 (1992-05-01), None
patent: 8-293812 (1996-11-01), None
patent: 2000-244289 (2000-09-01), None
patent: 2003-50651 (2003-02-01), None
patent: 2003-194860 (2003-07-01), None
Copending U.S. Appl. No. 11/043,152 filed on Jan. 27, 2005.
Copending of U.S. Appl. No. 11/139,560 filed on May 31, 2005.
Japanese Office Action dated Aug. 30, 2006, with partial English translation.
Copending U.S. Appl. No. 11/139,560 to Masato Hirai filed on May 31, 2005.
Copending U.S. Appl. No. 11/1043,152 to Masato Hirai filed on Jan. 27, 2005.
Anderson Matthew
McGinn IP Law Group PLLC
NEC Electronics Corporation
Nguyen Hai V
LandOfFree
Satellite broadcasting converter, control circuit... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Satellite broadcasting converter, control circuit..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Satellite broadcasting converter, control circuit... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3989571