会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 11. 发明授权
    • Two-line mac high definition television system
    • 双线高清电视系统
    • US4908697A
    • 1990-03-13
    • US77557
    • 1987-07-24
    • Mikhail TsinbergCarlo BasileAlan P. Cavallerano
    • Mikhail TsinbergCarlo BasileAlan P. Cavallerano
    • H04N11/02H04N11/04H04N11/08H04N11/24
    • H04N11/006H04N11/08
    • A high definition television signal with a sequential scan with the standard number of lines per frame and double the frame frequency is processed to generate a single MAC line having a duration substantially equal to that of four sequential lines of standard duration. Each MAC line has two luminance components having different compression ratios. For the remaining two lines, compressed line difference signals are transmitted, thereby allowing reconstruction of all luminance lines at the receiver. Each MAC line further has a U chrominance component and a V chrominance component, alternatively compressed 1:4 and 1:2. The remaining parts of each MAC line are taken up by data signals and audio as well as the necessary clamping. The luminance and chrominance signals are prefiltered to prevent artifacts. The filtering is geared to the visual characteristics of the human visual system, i.e. diagonal spatial frequencies are subjected to more filtering then either purely horizontal or purely vertical spatial frequencies.
    • 处理具有每帧的标准行数和帧频倍数的顺序扫描的高分辨率电视信号以产生具有基本上等于标准持续时间的四个连续行的持续时间的持续时间的单个MAC线。 每个MAC线具有两个具有不同压缩比的亮度分量。 对于其余两行,传送压缩线差信号,从而允许在接收器处重建所有亮度线。 每个MAC线路还具有U色度分量和V色度分量,或者压缩1:4和1:2。 每个MAC线路的其余部分被数据信号和音频以及必要的夹紧所占据。 亮度和色度信号被过滤以防止伪像。 滤波适用于人类视觉系统的视觉特征,即对角空间频率经受更多的滤波,然后是纯水平或纯垂直的空间频率。
    • 18. 发明授权
    • Method and apparatus for introducing a pan and scan feature to high
definition television systems
    • 将平移和扫描特征引入高分辨率电视系统的方法和装置
    • US4943856A
    • 1990-07-24
    • US330941
    • 1989-03-23
    • Michael BakhmutskyAlan P. CavalleranoMikhail TsinbergCarlo Basile
    • Michael BakhmutskyAlan P. CavalleranoMikhail TsinbergCarlo Basile
    • H04N7/088H04N11/24
    • H04N11/004H04N7/088
    • A method and apparatus for introducing a pan and scan feature to a multiple-signal high definition television (HDTV) system, so that a compatible signal received by a standard TV receiver may be a panned version of a wide aspect ratio HDTV signal, and so that high quality recombination of the compatible and augmenting signals by an HDTV receiver is possible. A pan and scan data word representing the relative movement of the compatible portion of the HDTV signal is inserted during the vertical blanking period of each frame of the HDTV signal, for causing panning synchronization between an HDTV transmitter and an HDTV receiver. The pan and scan data word corresponds to the beginning read address of a fixed coefficient memory containing video attenuation coefficients, which determine the degree of signal attenuation, to be applied at each pixel location along an HDTV scan line. The coefficient memory is addressed in a wrap-around manner, so that if the starting address in the read cycle is other than zero, the reading continues until the highest address in the memory is reached, and then address zero et seq. are read on up to the address before the starting address. By changing the points of passage, attenuation and suppression along scan lines, panning occurs.
    • 一种用于将平移和扫描特征引入多信号高分辨率电视(HDTV)系统的方法和装置,使得由标准TV接收机接收的兼容信号可以是广视角比HDTV信号的平移版本,因此 通过HDTV接收机的兼容和增强信号的高质量复合是可能的。 在HDTV信号的每帧的垂直消隐期间插入表示HDTV信号的兼容部分的相对移动的平移和扫描数据字,用于使HDTV发射机与HDTV接收机之间进行平移同步。 平移和扫描数据字对应于包含视频衰减系数的固定系数存储器的开始读取地址,其确定将沿着HDTV扫描线在每个像素位置处施加的信号衰减程度。 系数存储器以环绕方式寻址,因此如果读周期中的起始地址不是零,则读取继续,直到存储器中的最高地址达到,然后地址为零等。 在起始地址之前读取地址。 通过改变沿着扫描线的通过点,衰减和抑制,进行平移。
    • 20. 发明授权
    • Method and apparatus for transmitting and receiving a high definition
NTSC compatible television signal over a single DBS channel in time
division multiplex form
    • 用于以时分复用形式在单个DBS信道上发送和接收高分辨率NTSC兼容电视信号的方法和装置
    • US4794447A
    • 1988-12-27
    • US931756
    • 1986-11-17
    • Mikhail Tsinberg
    • Mikhail Tsinberg
    • H04N7/01H04N7/015H04N7/083H04N11/24H04N11/18H04N7/12
    • H04N7/0155H04N11/004H04N11/006H04N7/0112H04N7/083
    • A high definition television signal having 525 lines per frame, a sequential scan, and 59.94 frames per second is encoded into a time multiplex signal for transmission. The encoder drops alternate line, but creates line difference signals which allow reconstruction of the dropped lines at the receiver. The line difference signals are time compressed, while the luminance signals of the alternate, transmitted lines are time expanded. The encoder can accept programs from any one of a plurality of program originators, as long as the frame and line rates are multiples of one another. The time multiplex signal carries luminance and chrominance components in each line, but update signals such as high frequency luminance, high frequency chrominance and the line difference signals in a predetermined pattern in sequential frames. At the receiver, the time multiplex signal is decoded into the original high definition signal and is further encoded directly into two channels, the first being compatible with NTSC, the second being an augmentation channel. The two channels can latter be recombined, for example at a cable receiver, to create the high definition signal, while the first channel signal can be directly received on an NTSC receiver.
    • 具有每帧525行,顺序扫描和59.94帧每秒的高分辨率电视信号被编码为时间复用信号以进行传输。 编码器掉线,但产生线差信号,允许在接收机重建掉线。 线差信号被时间压缩,而交替发送线的亮度信号被时间扩展。 编码器可以接受来自多个节目发起者中的任何一个的节目,只要帧速率和线速率是彼此的倍数即可。 时间复用信号在每行中承载亮度和色度分量,但是在连续帧中以预定模式更新诸如高频亮度,高频色度和线差信号的信号。 在接收机处,时间复用信号被解码为原始高清晰度信号,并进一步直接编码成两个信道,第一个与NTSC兼容,第二个是增强信道。 后两者可以例如在电缆接收机上重新组合以产生高分辨率信号,而第一信道信号可以在NTSC接收机上直接接收。