专利汇可以提供Still picture broadcasting receiver专利检索,专利查询,专利分析的服务。并且A receiver for a composite signal consisting of video and audio multiplex signals intermittently transmitted in a predetermined sequence and having synchronizing signals with a blanking period and different repetition frequencies in the video signal period and the audio multiplex signal period, wherein the synchronizing signals are so composed as to have an identical mode at least for a part thereof at a common measure frequency of the two different repetition frequencies. The receiver comprises a gate circuit, a coincidence circuit for producing a coincidence signal when a signal having a mode identical with the mode of the synchronizing signal at the common measure frequency is supplied, a coincidence confirming circuit having a certain level exceeding a predetermined level when said coincidence signal is supplied regularly, a means for producing first and second signals having a phase controlled by said coincidence signal and having said two repetition frequencies respectively and a third signal having frequency of the common measure or common multiple frequency of said two repetition frequencies, and a means for operating a gate circuit by said third signal only when a coincidence confirming signal is supplied and for controlling said gate circuit to pass the composite signal during a period. The receiver further comprises means for detecting a blanking period by said third signal and a means for controlling gain of the receiver in accordance with the detected level. The receiver still further comprises means for fixing the level of the blanking period by using a part of the blanking period a predetermined fixed level.,下面是Still picture broadcasting receiver专利的具体信息内容。
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