Title:
テレビジョンチューナ
Document Type and Number:
Japanese Patent JP4295479
Kind Code:
B2
Abstract:
A high frequency amplifier (2) for amplifying inputted television signals; a mixer (4) for subjecting the television signals which have been amplified to frequency conversion into intermediate frequency signals; a SAW filter (7) for selecting, out of the intermediate frequency signals, intra-range intermediate frequency signals emerging in a range within a prescribed intermediate frequency band; and an intermediate frequency amplifier (8) for amplifying the intra-range intermediate frequency signals are provided, and wide band detecting means for detecting the intermediate frequency signals inputted to the SAW filter and generating a first AGC voltage is provided to control a gain of the high frequency amplifier with the first AGC voltage.
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Inventors:
Kunishima Tsutomu
Application Number:
JP2002206954A
Publication Date:
July 15, 2009
Filing Date:
July 16, 2002
Export Citation:
Assignee:
ALPS ELECTRIC CO.,LTD.
International Classes:
H04N5/52; H04B1/16; H04N5/44
Domestic Patent References:
| JP9163265A | ||||
| JP2001197383A | ||||
| JP9181632A |
Foreign References:
| GB2004428A |
Attorney, Agent or Firm:
Shunsuke Nakao
Takashi Ito
Yoshimi Hatanaka
Naoko Okura
Fumari Tamari
Takeyuki Suzuki
Shiro Isoda
Takashi Ito
Yoshimi Hatanaka
Naoko Okura
Fumari Tamari
Takeyuki Suzuki
Shiro Isoda