-
-
公开(公告)号:JP4274408B2
公开(公告)日:2009-06-10
申请号:JP2002279469
申请日:2002-09-25
Applicant: ソニー インターナショナル (ヨーロッパ) ゲゼルシャフト ミット ベシュレンクテル ハフツング , ソニー株式会社
Inventor: ディートマール シッル , ロルフ ネートリングス , ビルトゥハーゲン、イエンス , メルクレ、カルステン , 大和 岡信
CPC classification number: H03G3/001 , H03G3/3036 , H03M1/185
-
-
-
-
公开(公告)号:JP4760701B2
公开(公告)日:2011-08-31
申请号:JP2006349344
申请日:2006-12-26
Applicant: ソニー株式会社
Inventor: 大和 岡信
CPC classification number: H04N5/4446 , H03G3/3068 , H03J1/005 , H03J3/06 , H03J5/244 , H03J2200/10 , H04N5/50 , H04N5/52 , H04N21/4263 , H04N21/4305
Abstract: An IC of a front end circuit which can be ready for various television broadcasting systems is provided. The front end circuit includes tuning circuits 12A to 12C and 14A to 14C and high frequency amplifiers 13A to 13C individually corresponding to a plurality of reception bands of television broadcasts. The front end circuit further includes a switch circuit 11 for selectively supplying reception signals to the tuning circuits 12A to 12C, and a switch circuit 15 for selectively extracting outputs of the tuning circuits 14A to 14C. The front end circuit further includes mixer circuits 21I and 21Q to which an output of the switch circuit 15 is supplied, and a PLL 30 for supplying local oscillation signals SLOI and SLOQ having phases orthogonal to each other to the mixer circuits 21I and 21Q. The front end circuit further includes a complex band-pass filter 24 to which outputs of the mixer circuits 21I and 21Q are supplied, and an output circuit 25 for mathematically operating an output of the complex band-pass filter 24 and outputting an intermediate frequency signal SIF.
-
-
公开(公告)号:JP4310661B2
公开(公告)日:2009-08-12
申请号:JP2007025200
申请日:2007-02-05
Applicant: ソニー株式会社
Inventor: 大和 岡信
CPC classification number: H03J1/0008 , H03J2200/10
-
-
公开(公告)号:JP5375521B2
公开(公告)日:2013-12-25
申请号:JP2009246539
申请日:2009-10-27
Applicant: ソニー株式会社
CPC classification number: H03F3/189 , H03F2200/378 , H03F2200/391
Abstract: A high-frequency amplifier includes: an amplification section having a function to convert an input signal from a voltage signal into a current signal and output the current signal; output terminals; and a load circuit which is connected to the output node of the amplification section and outputs the current signal output by the amplification section to the output terminals as a voltage signal.
-
-
-
-
-
-
-
-
-