发明名称 Distance-adaptive microphone for video camera
摘要 A camcorder includes a camera section receiving a subject image subject through a zoom lens, converting the subject image to a video signal and generating a corresponding wide/tele signal representing position of the zoom lens, an audio processing part including a plurality of microphones receiving input sounds from the subject and converting the input sounds into a recordable audio signal, and a recorder/reproducer which records and reproduces the video signal and the recordable audio signal onto video tape. The audio processing part includes a plurality of analog elements. The audio processing part continuously amplifies the input audio signal using the analog elements in response to the wide/tele signal and outputs the recordable audio signal which corresponds to perceived distance from the camcorder to the subject. The analog elements may be transistors, wherein the dynamic resistance of each transistor is continuously varied responsive to the wide/tele signal.
申请公布号 US5477270(A) 申请公布日期 1995.12.19
申请号 US19940194372 申请日期 1994.02.08
申请人 SAMSUNG ELECTRONICS CO., LTD. 发明人 PARK, WON-BOK
分类号 H04N5/225;H04N5/232;H04R1/02;H04R3/00;H04R5/027;H04R5/033;H04S1/00;(IPC1-7):H04N5/228 主分类号 H04N5/225
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