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    • 23. 发明申请
    • Imaging Device
    • 成像设备
    • US20070120982A1
    • 2007-05-31
    • US11553577
    • 2006-10-27
    • Masaya OITAHiromichi TanakaMasafumi Kimata
    • Masaya OITAHiromichi TanakaMasafumi Kimata
    • H04N5/225H04N9/04
    • H04N5/2357H04N5/23245H04N5/235H04N5/3456H04N5/3559H04N5/37457
    • In an imaging device having an all-pixel read mode for reading signals from all pixels and a pixel downsampling read mode for reading signals by appropriately discarding pixels, adjacent ones of pixels use a floating diffusion capacitance, an amplifying transistor, a reset switch and a selection switch in common. In the pixel downsampling read mode, not only a primary capacitance but also a photodiode in each pixel to be discarded are used as capacitances for storing signal charges transferred from transfer switches. This makes it possible to lower the gate voltage of the amplifying transistor as compared with the case of using only the primary capacitance as a capacitance for storing signal charges transferred from a transfer switch to reduce the sensitivity of the pixels, thereby reducing the occurrence of flicker.
    • 在具有用于从所有像素读取信号的全像素读取模式和用于通过适当地丢弃像素来读取信号的像素下采样读取模式的成像装置中,相邻的像素使用浮动扩散电容,放大晶体管,复位开关和 选择开关共同。 在像素下采样读取模式中,不仅要将要丢弃的每个像素中的一次电容,而且还将光电二极管用作用于存储从转换开关传送的信号电荷的电容。 与仅使用一次电容作为用于存储从转换开关传送的信号电荷的电容的情况相比,可以降低放大晶体管的栅极电压,以降低像素的灵敏度,从而减少闪烁的发生 。
    • 29. 发明授权
    • PCM signal generating/reproducing apparatus
    • PCM信号生成/再现装置
    • US4961204A
    • 1990-10-02
    • US353709
    • 1989-05-18
    • Hiromichi TanakaTakao AraiToshifumi TakeuchiSeiichi Saito
    • Hiromichi TanakaTakao AraiToshifumi TakeuchiSeiichi Saito
    • G11B20/10G11B20/18H03M13/27H04N5/928
    • H04N5/928G11B20/1809
    • A PCM signal processing apparatus for recording or reproducing a PCM signal. The PCM signal reproducing apparatus of the invention is constituted by: a data addition circuit for receiving a first signal composed of n bits per word (n being an integer) and a second signal composed of n' bits per word (n' being an integer) as mode inputs different from each other, and for adding fixed data of (n-n') bits to every word of the second signal to thereby generate a third signal; a first switch device for receiving the first and third signals and for selectively outputting one of the first and third signals; a symbol generation circuit for converting every word of the output of the first switch device into symbol data of m.times.l bits (n>l); a signal processing circuit for performing at least interleave processing, error correction code generating processing, and addition of a synchronizing signal, on the output of the symbol generation circuit, to thereby generate a first data frame; a data deletion circuit for deleting the fixed data from the first data frame of the signal processing circuit to thereby generate a second data frame; and a second switch devices for receiving the first data frame from the signal processing circuit and the second data frame from the data deletion circuit.
    • 一种用于记录或再现PCM信号的PCM信号处理装置。 本发明的PCM信号再现装置由以下部分构成:数据加法电路,用于接收由每个字n位(n为整数)组成的第一信号和由每个字n位(n'为整数)组成的第二信号 )作为彼此不同的模式输入,并且用于将(n-n')位的固定数据添加到第二信号的每个字,从而生成第三信号; 第一开关装置,用于接收第一和第三信号并选择性地输出第一和第三信号之一; 符号产生电路,用于将第一开关装置的输出的每个字转换成m×1位(n> 1)的符号数据; 信号处理电路,用于在符号生成电路的输出上执行至少交织处理,纠错码生成处理以及同步信号的相加,从而生成第一数据帧; 数据删除电路,用于从信号处理电路的第一数据帧中删除固定数据,从而生成第二数据帧; 以及用于从信号处理电路接收第一数据帧的第二开关装置和来自数据删除电路的第二数据帧。