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81. 发明授权

US4970592A Horizontal synchronization, clock synchronization, D.C. restoration and gain control scheme for an analog TV system 失效
标题翻译：模拟电视系统的水平同步，时钟同步，直流恢复和增益控制方案
公开(公告)号：US4970592A
公开(公告)日：1990-11-13
申请号：US226493
申请日：1988-08-01
申请人： Neal D. Becker , Ajit Shenoy , Lin-nan Lee
发明人： Neal D. Becker , Ajit Shenoy , Lin-nan Lee
IPC分类号： H04N7/04 , H04N7/08 , H04N7/084
CPC分类号： H04N7/084 , H04N7/04 , H04N7/08
摘要： An analog TV system includes a transmitter which produces a horizontal unique pulse sequence during each horizontal blanking interval. The pulse sequence is amplitude modulated between two levels to define a horizontal unique word for horizontal synchronization. The frequency of the pulse sequence is selected for use by the receiver section as the color subcarrier phase reference. The average level of the pulse sequence is set at the transmitter and used at the receiver for DC restoration in a clamping circuit. The peak amplitude of the pulses of the pulse sequence define a reference level against which a receiver produced local reference is compared for AGC. As four separate functions are accomplished by a single unique pulse sequence transmitted during the horizontal blanking interval, which four functions are typically accomplished using four separate signals transmitted sequentially during the horizontal blanking interval, a substantial portion of the horizontal blanking interval remains available for other data.
摘要翻译：模拟电视系统包括在每个水平消隐间隔期间产生水平唯一脉冲序列的发射器。脉冲序列在两个电平之间进行幅度调制，以定义水平同步的水平唯一字。选择脉冲序列的频率以供接收机部分使用，作为彩色副载波相位参考。脉冲序列的平均电平设置在发射机处，并在接收机处用于钳位电路中的直流恢复。脉冲序列的脉冲的峰值幅度定义了对于AGC来比较接收器产生的本地参考的参考电平。由于四个单独的功能是通过在水平消隐间隔期间发送的单个唯一脉冲序列来完成的，这四个功能通常使用在水平消隐间隔期间顺序传输的四个独立信号完成，所以水平消隐间隔的大部分仍然可用于其他数据。

82. 发明授权

US4794456A High-definition television transmission system 失效
标题翻译：高清电视传输系统
公开(公告)号：US4794456A
公开(公告)日：1988-12-27
申请号：US59664
申请日：1987-06-08
申请人： Mikhail Tsinberg
发明人： Mikhail Tsinberg
IPC分类号： H04N7/04 , H04N7/083 , H04N11/24 , H04N7/01
CPC分类号： H04N11/004 , H04N7/04 , H04N7/083
摘要： A method and apparatus for transmitting a high-definition television signal containing picture information which, on display, forms first picture frames at a rate of 2n frames per second, where n is a standard number of picture frames per second formed by the picture information in a standard television signal, and having a width which is wider than that of a standard aspect ratio picture frame, said high-definition television signal having a bandwidth greater that that of a standard television signal, each of said first picture frames including a single field having m sequentially scanned scanning lines, where m is a standard number of interlaced scanning lines in each picture frame formed by the picture information in said standard television signal, in which said scanning lines are arranged in two interlaced fields. The method includes converting the high-definition television signal into a first transmission signal compatible with a standard television receiver and a second transmission signal to be combined with the first transmission signal in a high-definition televison receiver, to recreate the high-definition television signal.
摘要翻译：一种用于发送包含图像信息的高分辨率电视信号的方法和装置，所述高清晰度电视信号在显示时以2n帧/秒的速率形成第一图像帧，其中n是由图像信息形成的每秒的标准数量的图像帧标准电视信号，并且具有宽于标准宽高比画面的宽度，所述高分辨率电视信号的带宽大于标准电视信号的带宽，每个所述第一画面包括单个场具有m个顺序地扫描扫描线，其中m是由所述标准电视信号中的图像信息形成的每个图像帧中的标准数量的隔行扫描线，其中所述扫描线被布置在两个交错场中。该方法包括将高清晰度电视信号转换成与标准电视接收机兼容的第一传输信号和在高分辨率电视接收机中与第一传输信号组合的第二传输信号，以重新创建高分辨率电视信号。

83. 发明授权

US4768228A Data acquisition device 失效
标题翻译：数据采集装置
公开(公告)号：US4768228A
公开(公告)日：1988-08-30
申请号：US96343
申请日：1987-09-11
申请人： Charles B. Clupper , Robert J. Mathews
发明人： Charles B. Clupper , Robert J. Mathews
IPC分类号： H04N7/16 , H04N7/167 , H04N7/04
CPC分类号： H04N7/16
摘要： An apparatus for receiving, detecting and storing a series of discrete bits of data transmitted in conjunction with a video signal wherein only a portion of the transmitted data is read and saved.
摘要翻译：一种用于接收，检测和存储结合视频信号传输的一系列离散比特数据的装置，其中仅读取和保存所发送数据的一部分。

84. 发明授权

US4716464A Single channel if for video and audio 失效
标题翻译：单通道，如果视频和音频
公开(公告)号：US4716464A
公开(公告)日：1987-12-29
申请号：US858457
申请日：1986-04-30
申请人： Robert P. Parker
发明人： Robert P. Parker
IPC分类号： H04N5/62 , H04N5/44 , H04N7/04
CPC分类号： H04N5/62
摘要： A stereo television receiver processes the picture and intercarrier sound carrier signals in a common intermediate frequency (IF) section. The IF characteristic is modified such that the overall transmission characteristic of the receiver exhibits a modified Nyquist slope having a shelf portion of flat attenuation over a frequency band including within it the picture carrier frequency. This reduces the incidental phase modulation of the picture carrier signal due to asymmetrical attenuation of sidebands by the Nyquist slope, thereby reducing the associated intercarrier buzz.
摘要翻译：立体声电视接收机处理公共中频（IF）部分中的图像和载波间载波信号。 IF特性被修改为使得接收机的整体传输特性呈现出修改的奈奎斯特斜率，其具有在其中包括图像载波频率的频带上具有平坦衰减的架部分。由于边带的非对称衰减由奈奎斯特斜率引起的，这减少了图像载波信号的偶然相位调制，从而减少了相关的载波间蜂鸣。

85. 发明授权

US4048654B1 失效
公开(公告)号：US4048654B1
公开(公告)日：1987-11-10
申请号：US65910176
申请日：1976-02-18
IPC分类号： H04H20/88 , H04N7/04 , H04N7/045 , H04N7/06 , H04N7/08 , H04N7/081
CPC分类号： H04N7/06

86. 发明授权

US4701794A Television receiver comprising a teletext decoding circuit and a page number memory 失效
标题翻译：电视接收机包括图文解码电路和页码存储器
公开(公告)号：US4701794A
公开(公告)日：1987-10-20
申请号：US722636
申请日：1985-04-12
申请人： Melchert H. Froling , Herman J. R. Schmitz
发明人： Melchert H. Froling , Herman J. R. Schmitz
IPC分类号： H04N7/08 , G09G5/00 , H03J1/00 , H04N7/025 , H04N7/03 , H04N7/035 , H04N7/081 , H04N7/088 , H04N7/04
CPC分类号： H03J1/0008 , H04N7/0882
摘要： A television receiver which is suitable for displaying teletext pages comprises a control system including a microcomputer. The microcomputer is coupled to a volatile memory which comprises a plurality of page number registers. A page number can be temporarily stored in each of these registers. With the aid of a keyboard the user makes known which page numbers he wants to have stored in the different registers and the stored page numbers represent a first series of pages. One single read key (RCL) is provided for the display of such a page. Each time this key is depressed once, a different page belonging to the first series appears on the picture screen. The sequence in which the pages appear is the same as the sequence in which the user has keyed-in the relevant page numbers. This sequence can be interrupted by the occurrence of a preselected operating instruction in response to which a number of teletext pages not associated with said first series can be displayed on the picture screen. Thereafter, the display of the teletext pages of the first series can be continued.
摘要翻译：适用于显示图文电视页的电视接收机包括包括微计算机的控制系统。微型计算机耦合到包括多个页码寄存器的易失性存储器。页码可以临时存储在这些寄存器的每一个中。借助于键盘，用户知道他想要存储在不同寄存器中的哪些页码，并且存储的页码表示第一系列页面。提供一个单一读取键（RCL）用于显示这样的页面。每次按下该键一次，属于第一个系列的不同页面就会出现在图片屏幕上。页面出现的顺序与用户键入的序列相同，在相关的页码中。可以通过出现预先选择的操作指令来中断该序列，响应于此，可以在图像屏幕上显示与所述第一系列不相关联的多个图文电视页面。此后，第一系列的图文电视页面的显示可以继续。

87. 发明授权

US4691234A Noise reduction circuit for television multi-channel sound 失效
标题翻译：降噪电路用于电视多声道声音
公开(公告)号：US4691234A
公开(公告)日：1987-09-01
申请号：US761216
申请日：1985-07-31
申请人： David L. Albean
发明人： David L. Albean
IPC分类号： H03G9/02 , H04N5/60 , H04N7/06 , H04N7/04
CPC分类号： H04N5/607 , H03G9/025 , H04N7/06
摘要： A television receiver includes an audio signal processing arrangement for expanding a second audio program (SAP) signal compressed in accordance with the "dbx" system in a relatively simple manner. The signal processing arrangement includes a first filter for providing a first amount of deemphasis. A controllable gain amplifier has its input coupled to the filter and its gain controlled by a filtered signal representative of its input signal. A second filter at the amplifier output provides a second amount of deemphasis.
摘要翻译：电视接收机包括用于以相对简单的方式扩展根据“dbx”系统压缩的第二音频节目（SAP）信号的音频信号处理装置。信号处理装置包括用于提供第一量去加重量的第一滤波器。可控增益放大器的输入耦合到滤波器，其增益由表示其输入信号的滤波信号控制。放大器输出端的第二个滤波器提供第二次去除量。

88. 发明授权

US4679085A Digital integrated electronic storage system for video and audio playback 失效
标题翻译：用于视频和音频播放的数字集成电子存储系统
公开(公告)号：US4679085A
公开(公告)日：1987-07-07
申请号：US678165
申请日：1984-12-04
申请人： Robert R. Johnson , Walter E. Chapelle
发明人： Robert R. Johnson , Walter E. Chapelle
IPC分类号： G11C17/00 , G11C17/06 , G11C27/00 , H04N1/21 , H04N5/907 , H04N5/926 , H04N5/14 , H04N7/04
CPC分类号： H04N5/9267 , G11C17/06 , H04N1/32117 , H04N5/907 , H04N2201/3264
摘要： An apparatus for displaying in real-time a previously recorded video sequence includes a main memory wherein digitized video gray-scale information is stored for selected non-interlaced fields of video images to be displayed. The memory unit is formed of interconnected substrates. Each substrate is a ROM which includes storage elements and a layer of amorphous silicon alloy which forms an array of diode isolation elements. Column select and read-out circuitry as well as row select circuitry for each of the substrates are formed, on each corresponding substrate, utilizing the same amorphous silicon alloy. Digitized fields of presorted information are read out and stored in pairs in an interpolator circuit which is used to form interlaced fields to be displayed timewise between the digitally stored fields. The digitized fields are converted by a digital-to-analog converter and added to sync signals to form a composite analog video signal adapted to drive a raster scan display unit. Audio information is also stored in the main memory as sampled digital information with two samples per raster scan line. The audio is decoded through audio decoder circuitry and converted to an analog signal in a digital-to-analog converter. The analog and video output may be combined together in a radio frequency modulator to produce a standard transmittable television broadcast signal.
摘要翻译：一种用于实时显示先前记录的视频序列的装置包括主存储器，其中为要显示的视频图像的所选择的非隔行扫描场存储数字化视频灰度信息。存储单元由互连的基板形成。每个衬底是包括存储元件和形成二极管隔离元件阵列的非晶硅合金层的ROM。在每个对应的衬底上，利用相同的非晶硅合金形成列选择和读出电路以及每个衬底的行选择电路。预分类信息的数字化字段被读出并成对存储在内插器电路中，该内插器电路用于形成在数字存储的字段之间被时间显示的隔行字段。数字字段由数模转换器转换，并被添加到同步信号以形成适于驱动光栅扫描显示单元的复合模拟视频信号。音频信息也作为每个光栅扫描线具有两个样本的采样数字信息存储在主存储器中。音频通过音频解码器电路进行解码，并在数模转换器中转换为模拟信号。模拟和视频输出可以在射频调制器中组合在一起以产生标准的可传输电视广播信号。

89. 发明授权

US4639911A Head-end and receiver for a signal distribution system 失效
标题翻译：信号分配系统的头端和接收器
公开(公告)号：US4639911A
公开(公告)日：1987-01-27
申请号：US531544
申请日：1983-09-12
申请人： Engel Roza , Hendrik G. Van Veenendaal
发明人： Engel Roza , Hendrik G. Van Veenendaal
IPC分类号： H04B14/04 , H04N7/10 , H04N7/16 , H04N7/22 , H04N7/54 , H04N21/426 , H04N21/434 , H04J1/00 , H04N7/04 , H04K1/10
CPC分类号： H04N7/54 , H04N7/10 , H04N7/22
摘要： Head-end and receiver for a signal distribution system for signals having a wide frequency band and for accompanying signals having a narrow frequency band, such as the video signal and the sound signal of a television signal, respectively, digital signals being used for the distribution. The head-end comprises a first (4) and a second (5) A/D-converter for the signal having the wide frequency band and the signal having the narrow frequency band, respectively. The receiver comprises corresponding D/A-converters (13, 14). In order to avoid a specific frame structure and corresponding frame synchronization, the digital output signal of the second A/D-converter is modulated in a modulator (7) in the head-end on a subcarrier from a source (6) and thereafter added to the signal having the wide frequency band, and the combined signal is applied to the first A/D-converter (4) which is provided by a one-bit modulator. In the receiver the received digital signal is applied to a demodulator (17) via a bandpass filter (15), the demodulator output signal being applied to the second.
摘要翻译：用于具有宽频带的信号的信号分配系统的头端和接收机以及分别用于电视信号的视频信号和声音信号的具有窄频带的伴随信号的数字信号。前端包括分别具有宽频带的信号和具有窄频带的信号的第一（4）和第二（5）A / D转换器。接收机包括相应的D / A变换器（13,14）。为了避免特定的帧结构和相应的帧同步，第二个A / D转换器的数字输出信号在来自源（6）的子载波的前端的调制器（7）中被调制，然后加入到具有宽频带的信号，并且组合信号被施加到由一位调制器提供的第一A / D转换器（4）。在接收机中，接收的数字信号通过带通滤波器（15）施加到解调器（17），解调器输出信号被施加到第二个。

90. 发明授权

US4638352A Color video camera signal processing circuit 失效
标题翻译：彩色摄像机信号处理电路
公开(公告)号：US4638352A
公开(公告)日：1987-01-20
申请号：US650523
申请日：1984-09-14
申请人： Masaru Noda , Toshihiro Shiga
发明人： Masaru Noda , Toshihiro Shiga
IPC分类号： H04N9/04 , H04N7/04 , H04N9/64
CPC分类号： H04N9/045
摘要： A color video camera processing circuit is provided with a circuit for generating an intensity signal containing color signals from photo-sensors at predetermined proportions, and a circuit for generating color difference signals on the basis of the color signals independently from the intensity signal. A color video signal is generated on the basis of the intensity signal and the color difference signals. A color reproducibility and Moire or the color reproducibility and an S/N ratio are improved. The Moire is significantly suppressed by rendering products of ratios of sensitivities of the photo-sensors and component ratios of the color signals to be summed to be substantially equal.
摘要翻译：彩色摄像机处理电路设置有用于以预定比例产生包含来自光电传感器的彩色信号的强度信号的电路，以及用于根据颜色信号独立于强度信号产生色差信号的电路。基于强度信号和色差信号产生彩色视频信号。改善了色彩再现性和莫尔色彩重现性和S / N比。通过将光传感器的灵敏度比率和颜色信号的分量比率相乘得到的乘积大致相等，从而显着抑制了莫尔。

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