公开(公告)号：US09232202B2

公开(公告)日：2016-01-05

申请号：US12450592

申请日：2007-12-26

申请人： Mitsuhiro Togashi

发明人： Mitsuhiro Togashi

IPC分类号： H04B10/516 ,  H04N9/64 ,  H04B10/116 ,  H04N7/22 ,  H04N11/04

CPC分类号： H04B10/116 ,  H04N7/22 ,  H04N9/64 ,  H04N11/04

摘要： A visible light communication system having a transmission apparatus for modulating a transmission signal to a multiple-value number and a reception apparatus for demodulating a multiple-value modulated transmission signal is provided. The transmission apparatus includes a plurality of light emitters for emitting light in different colors, a chromaticity coordinates calculator for mapping a digital value to a chromaticity coordinates value, and a light intensity controller for controlling a light intensity of each of the light emitters based on the chromaticity coordinates value corresponding to the digital value. The reception apparatus includes a plurality of light receivers having different spectral characteristics, a chromaticity coordinates calculator for calculating a chromaticity coordinates value according to a received light intensity detected by each of the light receivers, and a demodulator for demodulating the digital value from the chromaticity coordinates value.

摘要翻译： 提供一种具有用于将发送信号调制为多值数量的发送装置和用于解调多值调制发送信号的接收装置的可见光通信系统。 发送装置包括多个用于发射不同颜色的光的发光体，用于将数字值映射到色度坐标值的色度坐标计算器，以及用于基于所述光发射器控制每个发光体的光强度的光强度控制器 色度坐标值对应于数字值。 接收装置包括具有不同光谱特性的多个光接收器，用于根据由每个光接收器检测的接收光强度来计算色度坐标值的色度坐标计算器和用于从色度坐标解调数字值的解调器 值。

公开(公告)号：US08984569B2

公开(公告)日：2015-03-17

申请号：US13843494

申请日：2013-03-15

申请人： Echostar Technologies L.L.C.

发明人： Mark B. Hurst

IPC分类号： H04N7/173 ,  G06F15/16 ,  H04J3/16 ,  H04J3/00 ,  H04N11/02 ,  H04N21/439 ,  H04N9/80 ,  H04N7/12 ,  H04N11/04 ,  H04N9/804 ,  H04L29/06 ,  H04L1/00 ,  H04L29/08 ,  H04N21/2662 ,  H04N21/485 ,  H04N21/81 ,  H04N21/845 ,  H04N7/16 ,  H04J3/04 ,  H04N5/89 ,  H04N5/92

CPC分类号： H04L65/604 ,  G06F15/16 ,  H04L1/0002 ,  H04L1/0083 ,  H04L29/06 ,  H04L29/06027 ,  H04L29/08072 ,  H04L65/4084 ,  H04L65/4092 ,  H04L65/60 ,  H04L65/602 ,  H04L65/607 ,  H04L67/02 ,  H04L67/06 ,  H04L67/108 ,  H04N7/12 ,  H04N7/173 ,  H04N7/17318 ,  H04N9/80 ,  H04N9/8042 ,  H04N11/04 ,  H04N21/2662 ,  H04N21/437 ,  H04N21/439 ,  H04N21/47217 ,  H04N21/4856 ,  H04N21/64322 ,  H04N21/6587 ,  H04N21/8106 ,  H04N21/8456 ,  H04N21/8586

摘要： Systems, devices and methods are provided to support multiple audio tracks in an adaptive media stream. Segments of the adaptive stream are encoded so that the player is able to locate and request a specific one of the available audio tracks using byte range requests or the like. Audio content can be removed from video segments, or at least moved to the end of the segments so that a byte range request obtains just the video content when the default audio is not desired. The audio content can be obtained from a separate audio segment. Indeed, multiple audio tracks can be packaged into a common audio segment so that byte range requests can obtain just the particular audio track desired.

摘要翻译： 提供系统，设备和方法来支持自适应媒体流中的多个音轨。 自适应流的段被编码，使得播放器能够使用字节范围请求等来定位和请求可用音频轨道中的特定一个。 音频内容可以从视频片段中移除，或至少移动到片段的末尾，以便在不需要默认音频时，字节范围请求仅获得视频内容。 音频内容可以从单独的音频段获得。 实际上，多个音频轨道可以打包成公共音频段，使得字节范围请求可以仅获得期望的特定音频轨迹。

公开(公告)号：US20140325582A1

公开(公告)日：2014-10-30

申请号：US14263918

申请日：2014-04-28

申请人： Time Warner Cable Enterprises LLC

发明人： Paul D. Brooks

IPC分类号： H04N21/266 ,  H04N21/2385 ,  H04N21/6405

CPC分类号： H04N21/2385 ,  H04N7/106 ,  H04N7/12 ,  H04N7/16 ,  H04N7/173 ,  H04N7/17318 ,  H04N11/02 ,  H04N11/04 ,  H04N21/2221 ,  H04N21/2408 ,  H04N21/266 ,  H04N21/42684 ,  H04N21/4383 ,  H04N21/6405 ,  H04N21/6581

摘要： In a cable television system in accordance with the invention, program materials are made available to subscribers in a neighborhood on an as needed basis. Specifically, when a subscriber at a set-top terminal selects a program channel to watch, the selection request is transmitted to a headend of the system. In response to such a request, a controller in the headend determines whether the material of the selected program channel has been made available to the neighborhood. If it has been made available, the controller identifies to the set-top terminal the carrier which is carrying the requested program material, and to which the set-top terminal tunes to obtain the requested program material. Otherwise, the controller assigns an unused carrier to carry the requested program material, and informs the set-top terminal of the identity of the newly assigned carrier. The controller also retires those carriers assigned for the program channels which are no longer watched by the subscribers in the neighborhood.

摘要翻译： 在根据本发明的有线电视系统中，可以根据需要向附近的用户提供节目材料。 具体地说，当机顶终端的用户选择要观看的节目频道时，选择请求被发送到系统的前端。 响应于这样的请求，头端中的控制器确定所选择的节目频道的素材是否已经可供附近使用。 如果已经可用，则控制器向机顶终端识别承载所请求的节目素材的载波，并且机顶终端调谐到该终端以获得所请求的节目素材。 否则，控制器分配未使用的载波来携带所请求的节目素材，并向机顶终端通知新分配的载波的身份。 控制器还退出分配给节目频道的载体，这些载波不再被邻居的用户观看。

公开(公告)号：US08713623B2

公开(公告)日：2014-04-29

申请号：US09956688

申请日：2001-09-20

申请人： Paul D. Brooks

发明人： Paul D. Brooks

IPC分类号： H04N7/173

CPC分类号： H04N21/2385 ,  H04N7/106 ,  H04N7/12 ,  H04N7/16 ,  H04N7/173 ,  H04N7/17318 ,  H04N11/02 ,  H04N11/04 ,  H04N21/2221 ,  H04N21/2408 ,  H04N21/266 ,  H04N21/42684 ,  H04N21/4383 ,  H04N21/6405 ,  H04N21/6581

摘要： In a cable television system in accordance with the invention, program materials are made available to subscribers in a neighborhood on an as needed basis. Specifically, when a subscriber at a set-top terminal selects a program channel to watch, the selection request is transmitted to a headend of the system. In response to such a request, a controller in the headend determines whether the material of the selected program channel has been made available to the neighborhood. If it has been made available, the controller identifies to the set-top terminal the carrier which is carrying the requested program material, and to which the set-top terminal tunes to obtain the requested program material. Otherwise, the controller assigns an unused carrier to carry the requested program material, and informs the set-top terminal of the identity of the newly assigned carrier. The controller also retires those carriers assigned for the program channels which are no longer watched by the subscribers in the neighborhood.

摘要翻译： 在根据本发明的有线电视系统中，可以根据需要向附近的用户提供节目材料。 具体地说，当机顶终端的用户选择要观看的节目频道时，选择请求被发送到系统的前端。 响应于这样的请求，头端中的控制器确定所选择的节目频道的素材是否已经可供附近使用。 如果已经可以使用，则控制器向机顶终端识别携带所请求的节目素材的载波，并且机顶终端调谐到该终端以获得所请求的节目素材。 否则，控制器分配未使用的载波来携带所请求的节目素材，并向机顶终端通知新分配的载波的身份。 控制器还退出分配给节目频道的载体，这些载波不再被邻居的用户观看。

公开(公告)号：US07321403B2

公开(公告)日：2008-01-22

申请号：US11020046

申请日：2004-12-23

申请人： Ryogo Yanagisawa ,  Tadahiro Yoshida ,  Satoshi Takahashi

发明人： Ryogo Yanagisawa ,  Tadahiro Yoshida ,  Satoshi Takahashi

IPC分类号： H04N5/38 ,  H04N5/04

CPC分类号： H04N5/073 ,  H04N11/04 ,  H04N11/20

摘要： In a transmitting section for a video signal transmitting/receiving system for transmitting digital video signals using a plurality of transmission channels, video guard band signals are inserted into video signals associated with the transmission channels immediately before transition from a blanking region to an effective video region. In a receiving section for the system, the inserted video guard band signals are detected for the respective transmission channels. A skew among the transmission channels is detected based on the detection result. To synchronize the video guard band signals among all the transmission channels, with reference to one of the video signals associated with a transmission channel with the longest delay (i.e., delayed by one clock cycle 1T), a delay of 1T is given to the other video signals. As a result, even if a skew occurs among the transmission channels, correct pixel data is displayed.

摘要翻译： 在用于使用多个发送信道发送数字视频信号的视频信号发送/接收系统的发送部分中，在从消隐区域到有效视频区域的转换之前，将视频保护带信号插入到与传输信道相关联的视频信号中 。 在系统的接收部分中，针对各个传输信道检测插入的视频保护频带信号。 基于检测结果检测传输信道之间的偏移。 为了使所有传输信道中的视频保护频带信号同步，参考与具有最长延迟（即，延迟一个时钟周期1T）的传输信道相关联的视频信号之一，将1T的延迟给予 其他视频信号。 结果，即使在发送信道之间发生偏斜，也显示正确的像素数据。

公开(公告)号：US20030208638A1

公开(公告)日：2003-11-06

申请号：US10206579

申请日：2002-07-26

发明人： Thomas Algie Abrams JR. ,  Mark F. Beauchamp

IPC分类号： H04B001/66 ,  H04N007/12 ,  H04N011/02 ,  H04N011/04 ,  G06F009/00 ,  G06F009/46 ,  H04N005/14 ,  H04N009/64

CPC分类号： H04L67/1095 ,  H04L69/40 ,  H04N5/781 ,  H04N5/85 ,  H04N9/8042 ,  H04N9/8047 ,  H04N11/02 ,  H04N11/04 ,  H04N21/6379

摘要： Methods, units, systems, architectures and/or storage media for video and/or audio processing. An exemplary architecture includes one or more layers selected from, for example, service and/or application layers, storage area network layers, digital asset management layers, and/or enterprise applications integration and/or business process automation layers. Various exemplary methods, units, systems and/or storage media are also disclosed.

摘要翻译： 用于视频和/或音频处理的方法，单位，系统，架构和/或存储介质。 示例性架构包括从例如服务和/或应用层，存储区域网络层，数字资产管理层和/或企业应用集成和/或业务流程自动化层中选择的一个或多个层。 还公开了各种示例性方法，单元，系统和/或存储介质。

公开(公告)号：US06559892B1

公开(公告)日：2003-05-06

申请号：US09529079

申请日：2000-04-07

申请人： Hidekazu Kikuchi

发明人： Hidekazu Kikuchi

IPC分类号： H04N1106

CPC分类号： H04N21/4342 ,  H04N5/06 ,  H04N5/126 ,  H04N5/38 ,  H04N5/66 ,  H04N11/04 ,  H04N21/23602 ,  H04N21/242 ,  H04N21/4302

摘要： To provide a video signal transmission apparatus capable of correctly transmitting a digital video signal. A PLL circuit 5 has a first cutoff frequency lower than the frequency of a horizontal synchronization signal contained in a digital video signal S9. has the characteristics of causing attenuation of a signal of the frequency higher than the first cutoff frequency, performs PLL processing for a dot clock signal S14 for identifying one pixel's worth of data of the digital video signal S9, and generates a transmission clock signal 55 of the frequency N (integer of 2 or more) times the first dot clock signal S14. The PLLL circuit 6 has a second cutoff frequency higher than the frequency of the horizontal synchronization signal, tracks a signal of a frequency lower than the related second cutoff frequency, performs the PLL processing on the serial signal S2 input via the transmission cable 4, and generates a transmission clock signal S6.

摘要翻译： 提供能够正确地发送数字视频信号的视频信号发送装置。 PLL电路5具有比包含在数字视频信号S9中的水平同步信号的频率低的第一截止频率。 具有使频率高于第一截止频率的信号衰减的特性，对于用于识别数字视频信号S9的一个像素的数据的点时钟信号S14进行PLL处理，并且生成传输时钟信号55 第一点时钟信号S14的频率N（2以上的整数）倍。 PLLL电路6具有比水平同步信号的频率高的第二截止频率，跟踪低于相关的第二截止频率的频率的信号，对通过传输电缆4输入的串行信号S2执行PLL处理，以及 产生传输时钟信号S6。

公开(公告)号：US5438371A

公开(公告)日：1995-08-01

申请号：US82071

申请日：1993-06-23

申请人： Rolf-Dieter Gutsmann ,  Siegfried Bohme ,  Hartmut Hackmann ,  Leo Warmuth

发明人： Rolf-Dieter Gutsmann ,  Siegfried Bohme ,  Hartmut Hackmann ,  Leo Warmuth

IPC分类号： H04N9/66 ,  H04N9/87 ,  H04N11/00 ,  H04N11/04 ,  H04N11/16 ,  H04N11/18 ,  H04N11/24 ,  H04N11/12

CPC分类号： H04N9/8707 ,  H04N11/04 ,  H04N11/165 ,  H04N11/186

摘要： At least a first and a second digital signal, both in parallel form, are converted to a single serial signal and transmitted from a digital color decoder to a signal processing unit so as to avoid picture disturbances in the signal processing unit. The first digital signal is dependent on the instantaneous value of a clock frequency used in the decoder for processing a digital color picture signal, and the second digital signal is dependent on the instantaneous value of a chrominance subcarrier frequency generated in the decoder and used for color decoding.

摘要翻译： 并行形式的至少第一和第二数字信号被转换为单个串行信号，并从数字彩色解码器传输到信号处理单元，以避免信号处理单元中的图像干扰。 第一数字信号取决于用于处理数字彩色图像信号的解码器中使用的时钟频率的瞬时值，第二数字信号取决于在解码器中产生并用于颜色的色度副载波频率的瞬时值 解码。

公开(公告)号：US5343509A

公开(公告)日：1994-08-30

申请号：US753384

申请日：1991-08-30

申请人： Gregory F. Dounies

发明人： Gregory F. Dounies

IPC分类号： H04N1/00 ,  H04N1/32 ,  H04N11/04 ,  H04M1/64 ,  H04M11/04

CPC分类号： H04N1/32058 ,  H04N1/00281 ,  H04N1/32037 ,  H04N1/32363 ,  H04N1/32368 ,  H04N1/32379 ,  H04N11/04 ,  H04N2201/0063

摘要： An emergency message is communicated from a remote location to an emergency service facility. An emergency message is fed, preferably in graphic format, to a facsimile machine at a remote location. The facsimile machine has an output at which the message appears as an electrical signal. The output of the facsimile machine is coupled to external memory means at the remote location to store the message in the memory means in the form of the electrical signal. A telephone number for the emergency service facility is also stored in the memory means. A receiving facsimile is connected to the telephone system at the emergency service facility. The telephone number stored in the memory means is dialed up responsive to a user command. The message stored in the memory means is transmitted over the telephone system to the receiving facsimile after dial up.

摘要翻译： 紧急信息从远程位置传送到紧急服务设施。 紧急消息被优选地以图形格式馈送到远程位置的传真机。 传真机具有一个输出信号作为电信号出现。 传真机的输出端耦合到远程位置的外部存储装置，以电信号的形式将消息存储在存储装置中。 紧急服务设施的电话号码也存储在存储装置中。 接收传真在紧急服务设施处连接到电话系统。 存储在存储装置中的电话号码是响应于用户命令被拨号的。 存储在存储装置中的消息在拨号之后通过电话系统传送到接收传真。

公开(公告)号：US4949169A

公开(公告)日：1990-08-14

申请号：US428251

申请日：1989-10-27

申请人： Leon Lumelsky ,  Sung M. Choi ,  Alan W. Peevers

发明人： Leon Lumelsky ,  Sung M. Choi ,  Alan W. Peevers

IPC分类号： H04N7/12 ,  H04M11/00 ,  H04N7/14 ,  H04N11/04 ,  H04N21/2383 ,  H04N21/438

CPC分类号： H04N21/2383 ,  H04N11/04 ,  H04N21/4382 ,  H04N7/148

摘要： An interface architecture for interconnecting a plurality of video display devices together over a high speed digital communication link having limited bandwidth provides at each node for transmitting during a "transmit mode"; (1) sequential pixels of digital data (COMVIDOUT) comprising separate luminance and chrominance fields, from a digital TV source associated with each display node which data represents a scaled video window, (2) the local system clock (SCLK), (3) vertical and horizontal communication sync signals (COMVSOUT and COMSHOUT), (4) luminance and chrominance clock enable signals (COMYOCE and COMCOCE) based on a scaling algorithm utilized in the transmitting video device to insure that both the proper pixels and the proper luminance and chrominance fields associated with these pixels are selected by the communications device for transmission. Further, the interface architecture at each display node provides for receiving during a "receive mode", (5) video input data pixels (COMVIDIN), (6) a video input data clock enable signal from the communications adapter (COMVINCE) which controls the storage of the received video data window in the local frame buffer, (7) horizontal and vertical video input sync signals from the communications adapter (COMHSIN and COMVSIN) for properly synchronizing the storing of the received video input data from the communications adapter into the frame buffer beginning ata predetermined address therein. The system utilizes, to a great extent, exisiting hardware in conventional video display device architectures and associated communications adapters such that a versatile generally applicable transmission system is achievable requiring a minimum of additional control hardware and software.