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91. 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。

92. 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。

93. 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。

94. 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。

95. 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。

96. 发明授权

US4626912A Sequential data block address processing circuits 失效
标题翻译：连续的数据块地址处理电路
公开(公告)号：US4626912A
公开(公告)日：1986-12-02
申请号：US488088
申请日：1983-04-25
申请人： James H. Wilkinson
发明人： James H. Wilkinson
IPC分类号： G11B27/28 , G11B20/10 , G11B20/18 , G11B27/10 , G11B27/36 , H04N5/935 , H04N5/14 , H04N7/04
CPC分类号： H04N5/935 , G11B20/18 , G11B27/107 , G11B27/36
摘要： A sequential data block address processing circuit for deriving address signals in dependence on incoming data representing, for example, a digital television signal and formed by sequential blocks of data each including a block address which changes cyclically from block to block and which is formed of three address words respectively representing block, line and segment numbers which change cyclically, the circuit comprising a read-only memory operative for each incoming block address to increment the block number and if this incrementing involves a carry to increment the line number and so on up to the segment number, and further operative for each incoming block address to form a predicted next block address which is formed of three address words each representing the respective block, line or segment number or incremented number as appropriate, and a comparator to compare each predicted next block address with the next incoming block address and to supply a correct address indication only if there is identity between one or more of the compared address words, and an address regenerator which is locked to the block addresses in the incoming data if, and only if, the correct address indication is supplied for two or more of the compared block addresses.
摘要翻译：一种顺序数据块地址处理电路，用于根据表示例如数字电视信号的输入数据导出地址信号，并且由顺序数据块形成，每个数据块包括从块到块循环改变的块地址，并由三个分别表示周期性变化的块，行和段号的地址字，该电路包括对每个输入块地址进行操作的只读存储器来增加块号，并且如果该增量涉及增加行号等等的进位，等等并且进一步对每个输入块地址进行操作，以形成预定的下一个块地址，该预测的下一个块地址由三个地址字形成，每个地址字分别表示相应的块，线或段号或递增的数字，以及比较器，用于比较每个预测的下一个块地址与下一个传入块地址并提供正确的地址指示只有当一个或多个比较的地址字之间存在同一性时，以及如果仅当为两个或更多个比较的地址字符提供了正确的地址指示时，该地址再生器被锁定到输入数据中的块地址块地址。

97. 发明授权

US4622694A Transmission system for TV signals on radio links 失效
标题翻译：广播链路电视信号传输系统
公开(公告)号：US4622694A
公开(公告)日：1986-11-11
申请号：US641259
申请日：1984-08-16
申请人： Herbert Weber , Hans-Peter Lier
发明人： Herbert Weber , Hans-Peter Lier
IPC分类号： H04N5/445 , H04N7/04 , H04N7/10 , H04B1/68
CPC分类号： H04N5/445 , H04N7/04 , H04N7/10
摘要： A system for transmitting television signals on a radio link. The system includes a transmitter having a modulator for modulating a carrier signal to produce a vestigial sideband amplitude modulated signal for transmission. The modulator includes a first converter for converting the frequency of video signals to an intermediate frequency and a second converter for converting the intermediate frequency of the video signals to a radio frequency. The system further includes a receiver having a demodulator for demodulating a received vestigial sideband amplitude modulated signal. The modulator includes a Nyquist filter connected between the first and second converters, and the demodulator includes a filter having a rectangular characteristic for processing the signal to be demodulated.
摘要翻译：一种用于在无线电链路上发送电视信号的系统。该系统包括具有用于调制载波信号以产生用于传输的残留边带幅度调制信号的调制器的发射机。调制器包括用于将视频信号的频率转换为中频的第一转换器和用于将视频信号的中频转换成射频的第二转换器。该系统还包括具有用于解调接收的残留边带幅度调制信号的解调器的接收机。调制器包括连接在第一和第二转换器之间的奈奎斯特滤波器，并且解调器包括具有用于处理待解调信号的矩形特性的滤波器。

98. 发明授权

US4542406A Video/audio simultaneous transmission system 失效
标题翻译：视频/音频同步传输系统
公开(公告)号：US4542406A
公开(公告)日：1985-09-17
申请号：US447653
申请日：1982-12-07
申请人： Haruo Shimoyama , Toshio Ohshima , Shinobu Nomoto , Makoto Hiraoka , Toshio Hanabata
发明人： Haruo Shimoyama , Toshio Ohshima , Shinobu Nomoto , Makoto Hiraoka , Toshio Hanabata
IPC分类号： H01L21/768 , H01L23/532 , H04N7/52 , H04N7/56 , H04N19/00 , H04N21/236 , H04N21/2368 , H04N21/242 , H04N21/43 , H04N21/434 , H04N7/04
CPC分类号： H04N21/2368 , H04N21/23602 , H04N21/242 , H04N21/4305 , H04N21/4341 , H04N21/4342 , H04N7/56
摘要： The horizontal sync signal contained in the video signal from a video apparatus sometimes undergoes phase jump, resulting in failure of multiplexing of audio and video signals based on the horizontal sync signal. A sync signal switching circuit is adapted to produce a modified sync signal by switching the sync signal to a local sync signal upon occurrence of the phase jump, thereby assuring the multiplexing of audio and video signals.
摘要翻译：来自视频设备的视频信号中包含的水平同步信号有时会发生相位跳变，导致基于水平同步信号的音频和视频信号的复用失败。同步信号切换电路适于通过在发生相位跳变时将同步信号切换到本地同步信号来产生修改的同步信号，从而确保音频和视频信号的复用。

99. 发明授权

US4541008A Television signal bandwidth reduction using variable rate transmission 失效
标题翻译：使用可变速率传输降低电视信号带宽
公开(公告)号：US4541008A
公开(公告)日：1985-09-10
申请号：US453538
申请日：1982-12-27
申请人： Max Fishman , James D. Nichols
发明人： Max Fishman , James D. Nichols
IPC分类号： H04N7/04 , H04N11/04 , H04N9/32
CPC分类号： H04N11/042 , H04N7/04
摘要： A television signal transmission system incorporating circuits for processing and encoding a repetition reduced signal. The system contains a component separator for generating sampled digital values of the color and intensity components of a television signal, storage buffer for storing the separated components of the video signal, a data processor for comparing successive samples of the component video data and for generating variable-length blocks of data to represent either slowly varying signals or rapidly varying signals, circuitry for encoding and multiplexing audio and synchronization data into the signal stream, circuitry for encoding signal and control data for transmission to a receiver, circuit for processing the received signal to establish synchronization, circuit for demultiplexing the received signal to extract the audio information, and means for demultiplexing the component video information and reconstructing the composite video signal from the repetition-reduced representation.
摘要翻译：一种电视信号传输系统，包括用于处理和编码重复缩小信号的电路。该系统包括用于产生电视信号的颜色和强度分量的采样数字值的分量分离器，用于存储视频信号的分离分量的存储缓冲器，用于比较分量视频数据的连续样本和用于生成变量的数据处理器长度数据块表示缓慢变化的信号或快速变化的信号，用于将音频和同步数据编码和复用到信号流中的电路，用于对信号进行编码的电路和用于传输到接收机的控制数据，用于处理接收信号的电路建立同步，用于解复用接收信号以提取音频信息的电路，以及用于对分量视频信息进行解复用和从重复减少表示重建复合视频信号的装置。

100. 发明授权

US4520392A Teletext reception indicator 失效
标题翻译：图文电视接收指示灯
公开(公告)号：US4520392A
公开(公告)日：1985-05-28
申请号：US471978
申请日：1983-03-04
申请人： Charles M. Cox , Charles Heuer
发明人： Charles M. Cox , Charles Heuer
IPC分类号： H04N5/445 , H04N7/088 , H04N21/488 , H04N7/04
CPC分类号： H04N21/4888 , H04N5/44513 , H04N7/0882 , H04N5/44504
摘要： An indicator is described for alerting a television viewer to the fact that a teletext signal is being received. In the preferred embodiment, the indicator includes a control which senses the detection of the framing code associated with the received teletext signal to actuate an indicator lamp.
摘要翻译：描述了一个指示器，用于警告电视观看者正在接收图文电视信号的事实。在优选实施例中，指示器包括感测与所接收的图文电视信号相关联的成帧代码的检测以致动指示灯的控制。

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