发明授权
US3673318A Video blanking and sound muting circuit 失效
视频屏蔽和声音静音电路

Video blanking and sound muting circuit
摘要:
A switching circuit, dependent solely on the value of fixed impedances and supplied direct current voltages, blanks the picture and mutes the sound of a television receiver during its channel selection tuning, either manually or automatically by remote control.
信息查询
0/0