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2. 发明授权

US4542402A Digital color matrix for a digital television receiver 失效
标题翻译：用于数字电视接收机的数字彩色矩阵
公开(公告)号：US4542402A
公开(公告)日：1985-09-17
申请号：US502002
申请日：1983-06-07
申请人： Joseph R. Ader
发明人： Joseph R. Ader
IPC分类号： H04N9/67
CPC分类号： H04N9/67
摘要： In a digital television receiver, a digital signal processing system generates samples of binary coded color mixture digital signals that are a representation of color picture information. The values of binary coded coefficients that convert the representation of the color picture information into binary coded color difference signals are stored in a memory accessed by a microprocessor. In response to adjustment of controls such as contrast and tint, the microprocessor modifies the coefficients. The modified coefficients are placed in a digital store such as a latch arrangement. A multiplier arrangement receives samples of the color mixture digital signals as first inputs for multiplying them by corresponding modified coefficients that are supplied by the digital store as second inputs. A clock signal is generated that sequentially clocks out of the digital store selected ones of the modified coefficients for developing a sequence of products corresponding to the color mixture components of the color difference signal. The products are then combined to form samples of the binary coded color difference signal.
摘要翻译：在数字电视接收机中，数字信号处理系统生成作为彩色图像信息的表示的二进制编码的彩色混合数字信号的采样。将彩色图像信息的表示转换为二进制编码的色差信号的二进制编码系数的值被存储在由微处理器访问的存储器中。响应于对比度和色调等控件的调整，微处理器修改系数。修改的系数被放置在诸如锁存装置的数字存储器中。乘法器装置接收彩色混合数字信号的采样作为第一输入，以将它们乘以由数字存储器提供的相应修正系数作为第二输入。产生时钟信号，其顺序地从数字存储器中选出所修改的系数中的一个，用于开发与色差信号的色彩混合分量相对应的产品序列。然后将产物组合以形成二进制编码色差信号的样本。

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