Television screen display unit
专利汇可以提供Television screen display unit专利检索，专利查询，专利分析的服务。并且PURPOSE: To enable only a chrominance sub-carrier oscillation circuit to fetch both the clock signal and horizontal synchronizing signal of a central processing unit CPU, by fetching the fixed horizontal synchronizing signal by stopping the central processing unit CPU from operating for (b) clocks by a gate signal.
CONSTITUTION: In a television screen display unit composed of an information processing method including CPU14, read-only memory ROM and random access memory RAM, a clock signal for operating CPU14 is generated by oscillator 19 on the basis of the output of a chrominance sub-carrier oscillation circuit. In order to obtain T
s =aT
c +bT
c (a and b are positive integers) when the period of the clock signal is denoted by T
c with that of a horizontal synchronizing signal denoted by R
s meeting the broadcast standard requirements, the gate signal is applied from gate generating circuit 30 to CPU14 for bT
c from the horizontal synchronizing signal from counter 20 and CPU14 is stopped from stopping for (b) clocks, thereby extracting the fixed horizontal synchronizing signal.
COPYRIGHT: (C)1979,JPO&Japio，下面是Television screen display unit专利的具体信息内容。
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