发明名称 RGB MEMORY CIRCUIT
摘要 <p>PURPOSE:To effectively reduce the difference of perception with an image read out and made into the image before it is stored without increasing the number of memory ICs by storing the required number of bits with quantized signal voltage of each of colors R, G, and B in plural memory ICs with prescribed capacity. CONSTITUTION:R, G color signal voltages out of R, G, and B primary color signal voltages are converted to seven bits, and a B color signal voltage to six bits by A/D converters 1A, 1B, and 2, respectively, and are stored in the memory ICs 4 with constitution of five 4-bit X n-word in a memory block 3, and are read out and made into the images. By employing such constitution, it is possible to obtain an RGB memory circuit in which all bits of each IC 4 can be used without increasing the number of ICs 4, and the difference of perception with the image before it is stored can be effectively reduced when it is read out and made into the image.</p>
申请公布号 JPH04168576(A) 申请公布日期 1992.06.16
申请号 JP19900293738 申请日期 1990.11.01
申请人 HITACHI LTD 发明人 TOMIHARA HIROYUKI;TOMATSURI KOICHI
分类号 H04N5/14;G06T1/60;G09G5/02;G09G5/36;H04N5/907;H04N11/04 主分类号 H04N5/14
代理机构 代理人
主权项
地址