公开(公告)号：US06621927B1

公开(公告)日：2003-09-16

申请号：US09441664

申请日：1999-11-16

申请人： Takayuki Mori ,  Nobufumi Nakagaki ,  Yumi Bando ,  Shinobu Torikoshi ,  Sunao Suzuki ,  Toshinori Murata

发明人： Takayuki Mori ,  Nobufumi Nakagaki ,  Yumi Bando ,  Shinobu Torikoshi ,  Sunao Suzuki ,  Toshinori Murata

IPC分类号： G06K934

CPC分类号： G06K9/325 ,  G06K2209/01

摘要： A boundary position detection apparatus in which the position of an imageless part (containing no meaningful image information) lying at the upper part or/and the lower part of a picture is precisely detected from a video signal. A line decision circuit decides whether each of lines constituting the picture belongs to an image part (containing meaningful image information) or to the imageless part. A boundary decision circuit decides the boundary between the image part and the imageless part. A time integration circuit integrates the detected boundary positions temporally, and determines a final boundary position. A detection control circuit finds an image-part region from the final position, detects the average luminance of the region and controls the integrating time interval of the time integration circuit with the average luminance.

摘要翻译： 一种边界位置检测装置，其中从视频信号精确地检测位于图像的上部或/或下部的无图像部分（不包含有意义的图像信息）的位置。 线路判定电路判断构成图像的各条线是否属于图像部分（含有意义的图像信息）或无图像部分。 边界判定电路决定图像部分与无图像部分之间的边界。 时间积分电路在时间上积分检测到的边界位置，并确定最终的边界位置。 检测控制电路从最终位置找到图像部分区域，检测该区域的平均亮度，并按照平均亮度控制时间积分电路的积分时间间隔。

公开(公告)号：US5774548A

公开(公告)日：1998-06-30

申请号：US707530

申请日：1996-09-04

申请人： Yumi Bando ,  Toshinori Murata ,  Takumi Okamura ,  Kenji Katsumata ,  Masaru Nanki ,  Takanori Eda ,  Satoshi Imuro ,  Satoru Takashimizu

发明人： Yumi Bando ,  Toshinori Murata ,  Takumi Okamura ,  Kenji Katsumata ,  Masaru Nanki ,  Takanori Eda ,  Satoshi Imuro ,  Satoru Takashimizu

IPC分类号： H04N7/167 ,  H04K1/02

CPC分类号： H04N7/1675 ,  H04N21/2347 ,  H04N21/2541 ,  H04N21/26606 ,  H04N21/4405 ,  H04N5/913 ,  H04N2005/91328 ,  H04N2005/91364

摘要： An arrangement to automatically change between a scrambled digital data output and descrambled digital data output of a receiver by inserting a control signal conforming to a program provider's policy into a transmission signal. In a receiving side, a descrambler descrambles a channel-decoded signal, a demultiplexer demultiplexes the multiplexed signal from the descrambler into encoded video and audio data for output to a source decoder, and extracts the control information inserted in the transmitting side for output to a switch or CPU. The CPU decrypts a control signal from the control information extracted by the demultiplexer to determine whether the scrambled digital signal or descrambled digital signal is appropriate for output, and outputs a changeover control signal depending on the result of decryption. A switch selects the output of a scrambled digital signal from a stage prior to the descrambler, or a descrambled digital signal from a stage subsequent to the descrambler, depending on the changeover control signal from the CPU. Thereby, a scrambled digital signal output or descrambled digital signal output can automatically be changed over depending on a program provider's policy.

摘要翻译： 一种通过将符合节目提供者策略的控制信号插入到传输信号中，在加扰数字数据输出和接收机的解扰数字数据输出之间自动改变的装置。 在接收侧，解扰器解扰通道解码信号，解复用器将来自解扰器的复用信号解复用为编码视频和音频数据，以输出到源解码器，并提取插入发送侧的控制信息，以输出到 开关或CPU。 CPU从由解复用器提取的控制信息中解密控制信号，以确定加密数字信号或解扰数字信号是否适于输出，并根据解密结果输出切换控制信号。 开关根据来自CPU的切换控制信号，从解扰器之前的一级选择加扰数字信号的输出，或从解扰器之后的级中选择解扰数字信号。 因此，根据程序提供者的策略，可以自动地改变加扰数字信号输出或解扰数字信号输出。

公开(公告)号：US6040867A

公开(公告)日：2000-03-21

申请号：US803532

申请日：1997-02-20

申请人： Yumi Bando ,  Takumi Okamura ,  Toshinori Murata

发明人： Yumi Bando ,  Takumi Okamura ,  Toshinori Murata

IPC分类号： H04N5/91 ,  H04N7/08 ,  H04N7/081 ,  H04N7/18

CPC分类号： H04N5/4401 ,  H04N21/4345 ,  H04N21/4384

摘要： A television signal receiving apparatus and method is provided having channel decode means for receiving a signal with a video signal, a sound signal, a data signal, and additional data multiplexed to perform tuning, demodulation, and error correction on the received signal and a demultiplexor for separating the multiplexed signal to output coded data of each of the video signal, the sound signal, and the data signal and for extracting service information as one of additional data. A storage device is provided for storing the service information extracted from the demultiplexor, together with a write controller for controlling writing into the storage device, and a read controller for controlling reading of the storage device according to a user command entered by a user. A source decoder is also provided for decoding the coded data outputted from the demultiplexor using the information outputted from said storage device to output the video signal, the sound signal, and the data signal. The storage device records the service information supplied from the demultiplexor, and the read controller performs control such that necessary data are read from the storage device as required by the user, thereby enhancing the speed of processing associated with the service information to provide a quick response to the user requirement. Also, the write controller can control storage such that only necessary information for the next processing operation is stored, thereby reducing the size of the storage device which is necessary.

摘要翻译： 提供一种电视信号接收装置和方法，其具有信道解码装置，用于接收具有视频信号，声音信号，数据信号和多路复用以对接收信号进行调谐，解调和纠错的附加数据的信号和解复用器 用于将复用的信号分离为输出视频信号，声音信号和数据信号中的每一个的编码数据，并用于将服务信息提取为附加数据之一。 提供一种存储装置，用于存储从解复用器提取的服务信息与用于控制对存储装置的写入的写入控制器，以及用于根据用户输入的用户命令控制存储装置的读取的读取控制器。 还提供了源解码器，用于使用从所述存储装置输出的信息来解码从解复用器输出的编码数据，以输出视频信号，声音信号和数据信号。 存储装置记录从解复用器提供的服务信息，并且读取控制器进行控制，使得根据用户需要从存储装置读取必要的数据，从而提高与服务信息相关联的处理速度以提供快速响应 符合用户要求。 此外，写入控制器可以控制存储器，使得仅存储用于下一个处理操作的必要信息，从而减小必要的存储设备的尺寸。

公开(公告)号：US6002797A

公开(公告)日：1999-12-14

申请号：US493104

申请日：1995-06-21

申请人： Takayuki Mori ,  Nobufumi Nakagaki ,  Yumi Bando ,  Shinobu Torikoshi ,  Sunao Suzuki ,  Toshinori Murata

发明人： Takayuki Mori ,  Nobufumi Nakagaki ,  Yumi Bando ,  Shinobu Torikoshi ,  Sunao Suzuki ,  Toshinori Murata

IPC分类号： G06K9/32 ,  G06K9/34

CPC分类号： G06K9/325 ,  G06K2209/01

摘要： A boundary position detection apparatus in which the position of an imageless part (containing no meaningful image information) lying at the upper part or/and the lower part of a picture is precisely detected from a video signal. A line decision circuit decides whether each of lines constituting the picture belongs to an image part (containing meaningful image information) or to the imageless part. A boundary decision circuit decides the boundary between the image part and the imageless part. A time integration circuit integrates the detected boundary positions temporally, and determines a final boundary position. A detection control circuit finds an image-part region from the final position, detects the average luminance of the region and controls the integrating time interval of the time integration circuit with the average luminance.