Video filter reducing common channel interference in TV receivers - has input processed by difference amplifier with input from either sample and hold circuit or LC band pass filter for compensation,申请号DE19914113960-传众专利搜索

发明名称	Video filter reducing common channel interference in TV receivers - has input processed by difference amplifier with input from either sample and hold circuit or LC band pass filter for compensation
摘要	The circuit has a video input to an amplitude controller (2) coupled directly to one input of a differencing amplifier. A connection is also made to an isolating amplifier (4), sample and hold circuit (5), low pass filter (6) and amplifier (8) coupled to a switching stage (14) at input to the differencing amplifier. The video input also passes via an active LC bandpass filter (11) coupled to amplifier (12, 13) providing a further input to the switching stage. The amplifier output controls the sample and hold stage. ADVANTAGE - Reduces common channel interference in TV receivers.
申请公布号	DE4113960(A1)	申请公布日期	1992.11.05
申请号	DE19914113960	申请日期	1991.04.29
申请人	BUNDESREPUBLIK DEUTSCHLAND, VERTRETEN DURCH DEN VORSTAND DER DEUTSCHEN BUNDESPOST TELEKOM, DIESER VERTRETEN DURCH DEN PRAESIDENTEN DES FERNMELDETECHNISCHEN ZENTRALAMTES, 6100 DARMSTADT, DE	发明人	EULER, HUBERT, DIPL.-ING., 8961 SULZBERG, DE;HINDELANG, FRIEDRICH, 8952 MARKTOBERDORF, DE;UNSIN, WOLFRAM, 8960 KEMPTEN, DE
分类号	H04N5/21	主分类号	H04N5/21
代理机构		代理人
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