发明名称 PICTURE FREEZING DEVICE
摘要 PURPOSE:To suppress a change in sub carrier phase information due to a part of noise and the like and to prevent the still picture from having inferior hue by obtaining sub carrier phase information by means of a majority decision logic and setting it to a sub carrier phase at the time of writing. CONSTITUTION:A status signal WRSC is latched in plural latch circuits 1611-161n forming the sub carrier phase information generation circuit at the time of writing with a majority logical circuit 162 in accordance with the rise of a freeze signal FREZ. The outputs from said circuits 1611-161n are majority- processed in the circuit 162 and sub carrier phase information WSCP at the time of writing into a still picture frame memory is decided. Consequently, the change in sub carrier phase information due to a part of noise and the like is controlled and the still picture is prevented from having inferior hue.
申请公布号 JPS63110893(A) 申请公布日期 1988.05.16
申请号 JP19860256495 申请日期 1986.10.28
申请人 SONY CORP 发明人 NAKADA TETSUO;TADAMI MITSUSHIGE
分类号 H04N9/79 主分类号 H04N9/79
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