Image memory unit
申请(专利)号： JP19850028236
专利号： JPH0681327B2 主分类号： H04N9/79 申请权利人： TOKYO
SHIBAURA ELECTRIC CO 公开国代码： JP 优先权国家： JP
摘 要：
PURPOSE:To make the phase of a color subcarrier of a read video signal continuous by adopting a timing
synchronously with an address clock for a write end timing or a read end timing of a picture data to a picture memory.
CONSTITUTION:A reproducing signal from a head of a VTR is inputted to a terminal 1, written in a memory 4 and read by a timing signal from a write/ read control circuit 17 via a reproducing video signal processing circuit 2 and an AD
converter 3, outputted to a terminal 6 from a DA converter 5 and a still picture is obtained. A value H of an input D is
outputted at an output Q of a D FF 10 at the leading of a head switching pulse inputted to a terminal 9, a Q output of a D FF 11 goes to logical H at the leading of an address clock from a reference color subcarrier oscillator 7, an address clear pulse is inputted to an address counter 13 via a NOR circuit 12, the address is
initialized to synchronize a head switching
申请日： 1985-02-18 公开公告日： 1994-10-12
分类号： H04N9/79;
H04N5/93 发明设计人： TAKEUCHI
HISAHARU 申请国代码： JP
优先权： 19850218 JP
2823685
摘 要 附 图：
pulse and an address clock. 主权项：
【請求項1】複合映像信号をデジタル信号に変換するA/D変換手段と、 前記A/D変換手段の出力信号を画像メモリに書き込む書込手段と、
前記画像メモリに書き込まれた前記デジタル信号を読み出す読出手段と、
权 利 要 求 说 明 书
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Image memory unit
