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公开(公告)号：US4179706A
公开(公告)日：1979-12-18
申请号：US863596
申请日：1977-12-22
CPC分类号： H04N9/045
摘要： A color camera system is disclosed in which a dot-like signal which appears on a TV screen caused by a processing error is effectively eliminated. A pick up device with a color coding filter derives composite signals containing color components modulated at a frequency f.sub.s where the composite signals are obtained in opposite phase line by line. An adder circuit is provided to mix the composite signals obtained from two adjacent lines. A detector detects the 2nd harmonic of f.sub.s from the mixed composite signals. A dual gate MOSFET is provided to suppress a high frequency region of a luminance signal which is derived from the composite signals in response to the detected 2nd harmonic of f.sub.s.
摘要翻译： 公开了一种彩色照相机系统，其中有效地消除了由处理错误引起的在TV屏幕上出现的点状信号。 具有彩色编码滤波器的拾取装置导出包含以频率fs调制的颜色分量的复合信号，其中复合信号被逐行反相地获得。 提供加法器电路以混合从两个相邻行获得的复合信号。 检测器从混合复合信号中检测fs的二次谐波。 提供双栅极MOSFET，以响应于检测到的fs的二次谐波来抑制从复合信号导出的亮度信号的高频区域。
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公开(公告)号：US4219841A
公开(公告)日：1980-08-26
申请号：US017551
申请日：1979-03-05
CPC分类号： H04N9/735
摘要： A white balance control circuit for an encoded composite color television signal is disclosed in which three primary color signals of green (G), blue (B) and red (R) are matrixed to be mixed color signal components, color difference signals of R-G and B-G are provided from the mixed color signal components, and gain control circuits provided on the signal transmission paths of two primary color signals of R and B are so controlled in their gains that the color difference signals become zero, when the white balance adjustment is done.
摘要翻译： 公开了一种用于编码的复合彩色电视信号的白平衡控制电路，其中绿色（G），蓝色（B）和红色（R）的三个基色信号被矩阵化为混合颜色信号分量，RG的色差信号和 BG由混合颜色信号分量提供，并且当白平衡调整完成时，设置在R和B的两个基色信号的信号传输路径上的增益控制电路在其增益中得到如此控制，使得色差信号变为零 。
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公开(公告)号：US4141037A
公开(公告)日：1979-02-20
申请号：US783062
申请日：1977-03-30
CPC分类号： H04N9/045
摘要： In processing a video signal, vertical correlation is utilized between video signals of successive line intervals. Video signals from the two line intervals are examined, their existences, polarities and magnitudes between them. If both signals exist with the same polarity, a smaller signal in magnitude is derived at a system output and otherwise no signal appears at the output. This system can be applied to a color television camera circuit.
摘要翻译： 在处理视频信号时，在连续行间隔的视频信号之间利用垂直相关。 检查来自两行间隔的视频信号，它们之间的存在，极性和幅度。 如果两个信号都以相同的极性存在，则在系统输出端导出较小的幅度信号，否则在输出端不会出现任何信号。 该系统可应用于彩色电视摄像机电路。
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公开(公告)号：US4149182A
公开(公告)日：1979-04-10
申请号：US872063
申请日：1978-01-25
CPC分类号： H04N9/045
摘要： A color signal modulating system for a color television camera having two CCD's as image pick-up devices for converting optical images into two color signals at alternate scan lines and into a third color signal at consecutive scan lines. Means are provided for developing two color difference signals, one of which is developed from alternate lines of scan. The color difference signals are used to modulate a carrier signal at alternate lines, and means are provided to derive sequentially modulated first and second color difference signals simultaneously at an output of the signal modulating system.
摘要翻译： 一种用于彩色电视摄像机的彩色信号调制系统，具有两个CCD作为图像拾取装置，用于将光学图像在交替扫描线处转换成两个颜色信号，并将其连续扫描线转换为第三颜色信号。 提供了用于开发两个色差信号的装置，其中一个是从交替的扫描线显影出来的。 色差信号用于在交替行处调制载波信号，并且提供装置以在信号调制系统的输出处同时导出顺序调制的第一和第二色差信号。
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公开(公告)号：US4183052A
公开(公告)日：1980-01-08
申请号：US794804
申请日：1977-05-09
CPC分类号： H04N9/045
摘要： A solid state color camera having an image sensing device which has a plurality of image sensing cells aligned in both the horizontal and vertical directions, an optical filter which produces three primary color separated images on the image sensing device, a circuit which reads out an image signal as to satisfy an interlaced signal reading system of a standard television signal, the image signal being comprised of a luminance signal and a chrominance modulated carrier signal, a circuit which supplies a carrier signal to the reading out circuit, the carrier signal being selected approximately equal to or half of a standard color sub-carrier frequency, and a circuit selecting vertical and horizontal frequencies of a read out image signal.
摘要翻译： 一种固态彩色照相机，具有具有在水平和垂直方向上对准的多个图像感测单元的图像感测装置，在图像感测装置上产生三原色分离图像的滤光器，读出图像的电路 信号，以满足标准电视信号的隔行扫描信号读取系统，图像信号由亮度信号和色度调制载波信号组成，电路将载波信号提供给读出电路，载波信号大致选择 等于或一半的标准彩色副载波频率，以及选择读出图像信号的垂直和水平频率的电路。
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公开(公告)号：US4200883A
公开(公告)日：1980-04-29
申请号：US831155
申请日：1977-09-07
CPC分类号： H04N9/045
摘要： A solid state color television camera having a solid state image sensing device and an optical color filter. In this case, the color separating characteristics of the color filter is so selected that when a predetermined horizontal scanning line is scanned, from the solid state image sensing device there are obtained a red color signal and a luminance signal of the standard system sequentially and alternately, and from a horizontal scanning line adjacent the above horizontal scanning line there are obtained a blue color signal and luminance signal. Also, as the high band component, which constitutes the above luminance signal, the high band component of a composite video output signal, which includes the primary color signal and luminance signal produced by scanning the above horizontal scanning line, is utilized. Further, by scanning the respective horizontal scanning lines, different color difference output signals obtained at every one horizontal scanning line are made in simultaneity and based upon the color difference output signals and luminance signal there is produced a color video signal of the standard system.
摘要翻译： 一种具有固态图像感测装置和光学滤色器的固态彩色电视摄像机。 在这种情况下，滤色器的分色特性如此选择，当扫描预定的水平扫描线时，从固态图像感测装置，依次和交替地获得标准系统的红色信号和亮度信号 并且从与上述水平扫描线相邻的水平扫描线获得蓝色信号和亮度信号。 此外，作为构成上述亮度信号的高频带分量，利用包括通过扫描上述水平扫描线产生的原色信号和亮度信号的复合视频输出信号的高频带分量。 此外，通过扫描各个水平扫描线，同时进行在每一个水平扫描线获得的不同色差输出信号，并且基于色差输出信号和亮度信号，产生标准系统的彩色视频信号。
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公开(公告)号：US4131913A
公开(公告)日：1978-12-26
申请号：US831341
申请日：1977-09-07
CPC分类号： H04N9/045
摘要： A solid state television camera having a solid state image sensing device and an optical color filter. The color separating characteristics of the color filter are so selected that when a predetermined horizontal scanning line is scanned the solid state image sensing device produces a standard red color signal and a luminance signal sequentially and alternately, and when an adjacent horizontal line is scanned, a blue color signal and luminance signal are produced in the same manner. In this way, different color difference output signals are simultaneously obtained at every horizontal scanning line, and based upon the color difference output signals and luminance signal, there is produced therefrom a standard color video signal.
摘要翻译： 一种具有固态图像感测装置和光学滤色器的固态电视摄像机。 滤色器的分色特性如此选择，当扫描预定水平扫描线时，固态图像感测装置顺序并交替地产生标准红色信号和亮度信号，并且当扫描相邻的水平线时， 以相同的方式产生蓝色信号和亮度信号。 以这种方式，在每个水平扫描线同时获得不同的色差输出信号，并且基于色差输出信号和亮度信号，由此产生标准彩色视频信号。
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8.发明授权Cable modem control method giving priority to packets from the cable head end over packets from the subscriber LAN 失效电缆调制解调器控制方法优先考虑来自用户LAN的数据包的电缆头端的数据包公开(公告)号：US06216171B1
公开(公告)日：2001-04-10
申请号：US09021828
申请日：1998-02-11
IPC分类号： G06F1516
CPC分类号： H04N7/17309 , H04L12/2801
摘要： An information-supply control apparatus and method uses a cable modem. The cable modem has one I/O connector attached to a coaxial cable coupling the cable modem with the cable system's head end. Another I/O connector is attached to a subscriber's local area network (LAN). The cable modem prioritizes its processing of packets as follows. Packets received from the cable system head end that are addressed to devices on the subscriber LAN are given the highest priority. Packets received from the cable system head end that are addressed to the cable modem itself are given the second highest priority. Packets received from the subscriber LAN that are to be transferred to the coaxial cable are given the third highest priority. Finally, packets that are received from the subscriber LAN that are to be transferred back to the subscriber LAN are given the fourth highest priority. The cable modem also determines whether a received packet has overflowed its allocated buffer. Upon detecting buffer overflow, the cable modem discards the overflow data.
摘要翻译： 信息供应控制装置和方法使用电缆调制解调器。 电缆调制解调器具有一个I / O连接器，其连接到将电缆调制解调器与电缆系统的头端连接的同轴电缆。 另一个I / O连接器连接到用户的局域网（LAN）。 电缆调制解调器按照以下方式优先处理数据包。 从电缆系统头端接收的寻址到用户LAN上的设备的数据包被给予最高优先级。 从电缆系统头端接收到的数据包是寻址到电缆调制解调器本身的第二高优先级。 从用户LAN接收的要传输到同轴电缆的数据包被赋予第三高优先级。 最后，从用户LAN接收到要传送回用户LAN的分组被赋予第四高优先级。 电缆调制解调器还确定接收的分组是否已经溢出其分配的缓冲器。 检测到缓冲区溢出时，电缆调制解调器会丢弃溢出数据。
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公开(公告)号：US4486672A
公开(公告)日：1984-12-04
申请号：US355237
申请日：1982-03-05
IPC分类号： G11C19/28 , H03K3/286 , H03K5/02 , H03K17/66 , H04N5/335 , H04N5/3725 , H04N5/378 , H03K5/12
CPC分类号： H03K5/02 , G11C19/285 , H03K17/667
摘要： A drive circuit comprises output transistors of complementary type serially coupled to each other between voltage supply terminals, auxiliary transistors of complementary type which have base electrodes respectively connected to the serial connection point between the output transistors and which are serially coupled between the respective base electrodes of the output transistors, and resistors serially coupled between the voltage supply terminals with their connection point coupled to the connection point of the auxiliary transistors. An input clock signal is supplied to the respective base electrodes of the output transistors via coupling capacitors, and an output clock pulse is derived from the serial connection point between the output transistors.
摘要翻译： 驱动电路包括互补型输出晶体管，它们在电压供给端子，互补型辅助晶体管之间彼此串联耦合，所述互补型辅助晶体管具有分别连接到输出晶体管之间的串联连接点的基极，并且串联连接在各个基极之间 输出晶体管和电阻器串联耦合在电压源端子之间，其连接点耦合到辅助晶体管的连接点。 通过耦合电容将输入时钟信号提供给输出晶体管的各个基极，从输出晶体管之间的串联连接点导出输出时钟脉冲。
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公开(公告)号：US4803650A
公开(公告)日：1989-02-07
申请号：US846192
申请日：1986-03-31
CPC分类号： H03H19/004
摘要： An n-th degree switched capacitor filter having transfer characteristics expressed by a transfer function H(Z) can be configured by expanding the transfer function H(Z) to an n-element linear simultaneous state equation of n state voltages inclusive of an output voltage. The coefficients of the linear state equation a.sub.11 to a.sub.n2, b.sub.11 to b.sub.nn are determined in a range within which the filter circuit can be configured by hardware and further each state voltage is below a maximum output voltage. In practice, the filter is configured by plural leapfrog type differential operational amplifiers having base capacitors C.sub.o, plural transmission gates, and plural electric charge transfer capacitors C.sub.T so as to determine each coefficient on the basis of ratios C.sub.T /C.sub.o. The filter is realized by a monolithic integrated circuit (IC) and provided with a higher signal-to-noise (S/N) ratio and a wider dynamic range without deteriorating electrical characteristics and increasing cost.
摘要翻译： 具有由传递函数H（Z）表示的传递特性的n次开关电容滤波器可以通过将传递函数H（Z）扩展到包括输出电压在内的n个状态电压的n元线性同时状态方程式 。 线性状态方程式a11至a2，b11至bnn的系数在其中可以通过硬件配置滤波器电路并且每个状态电压低于最大输出电压的范围内确定。 实际上，滤波器由具有基本电容器Co，多个传输门和多个电荷转移电容器CT的多个跨越式差分运算放大器构成，以便基于比率CT / Co来确定每个系数。 滤波器由单片集成电路（IC）实现，并具有更高的信噪比（S / N）比和更宽的动态范围，而不会降低电气特性并增加成本。
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