Telecommunications – Receiver or analog modulated signal frequency converter – Cabinet – housing – or chassis structure
Reexamination Certificate
2005-08-12
2009-02-10
Pan, Yuwen (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Cabinet, housing, or chassis structure
C455S090300, C455S130000, C455S188100
Reexamination Certificate
active
07489917
ABSTRACT:
A tuner block in which a modulator and an IF/demodulator circuit are integrally formed. The tuner block has a casing for accommodating a tuner, the IF/demodulator circuit and the modulator, and sixteen pins consecutively disposed at an outside of the casing. A number of the pins is reduced as compared with a conventional tuner block by supplying an electrical power to the modulator and the tuner through a common pin, dispensing with pins carrying unnecessary signals and pins which carry no signal and rearranging other pins. Potential for noise and interference between signals is reduced by maximizing displacements of connector pins which carry signals which are likely to interact. A switching arrangement provides for utilizing either a conventional tuner block or a tuner block according to the present invention on a circuit board.
REFERENCES:
patent: 4509210 (1985-04-01), Kohn
patent: 4569084 (1986-02-01), Takahama
patent: 4691378 (1987-09-01), Kumamoto et al.
patent: 5355532 (1994-10-01), Kubo et al.
patent: 5457817 (1995-10-01), Nagai et al.
patent: 5475876 (1995-12-01), Terada et al.
patent: 5710999 (1998-01-01), Iwase et al.
patent: 5913173 (1999-06-01), Ohwaki et al.
patent: 5915068 (1999-06-01), Levine
patent: 6404309 (2002-06-01), Hall et al.
patent: 6483554 (2002-11-01), Kim
patent: 6947722 (2005-09-01), Kim et al.
patent: 2003/0063225 (2003-04-01), Sasaki
patent: 236 9420 (2000-03-01), None
patent: 484 051 (1992-05-01), None
Office Action dated Oct. 29, 2004 issued in corresponding Chinese Patent Application No. 02120414.4, filed May 23, 2002.
Kim Chul-min
Suh Yong-bum
Yoo Seung-bong
Akinyemi Ajibola
Pan Yuwen
Samsung Electronics Co,. Ltd.
Staas & Halsey , LLP
LandOfFree
Tuner block for use in video signal receiving apparatus... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tuner block for use in video signal receiving apparatus..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tuner block for use in video signal receiving apparatus... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4076919