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1. 发明申请

US20110135271A1 METHOD AND APPARATUS FOR SECURE TRANSFER AND PLAYBACK OF MULTIMEDIA CONTENT 有权
公开(公告)号：US20110135271A1
公开(公告)日：2011-06-09
申请号：US13031043
申请日：2011-02-18
申请人： Arthur Van Hoff , James Braton
发明人： Arthur Van Hoff , James Braton
IPC分类号： H04N5/765
CPC分类号： H04N9/8042 , G06F3/0481 , G06F3/04817 , G11B27/32 , H04N1/2112 , H04N5/76 , H04N5/765 , H04N5/775 , H04N5/7755 , H04N5/781 , H04N5/85 , H04N5/913 , H04N5/95 , H04N7/088 , H04N7/173 , H04N7/17309 , H04N7/17318 , H04N9/8205 , H04N9/83 , H04N21/21 , H04N21/2393 , H04N21/2543 , H04N21/25816 , H04N21/4104 , H04N21/4122 , H04N21/4135 , H04N21/41407 , H04N21/4143 , H04N21/4147 , H04N21/4227 , H04N21/4312 , H04N21/4314 , H04N21/4331 , H04N21/4334 , H04N21/43615 , H04N21/43622 , H04N21/4367 , H04N21/440236 , H04N21/4405 , H04N21/4408 , H04N21/44204 , H04N21/454 , H04N21/472 , H04N21/4722 , H04N21/478 , H04N21/47815 , H04N21/4788 , H04N21/482 , H04N21/6175 , H04N21/632 , H04N21/6543 , H04N21/812 , H04N21/858 , H04N2005/91335 , H04N2005/91364
摘要： A method and apparatus for secure transfer and playback of multimedia content enables the secure transfer of multimedia content from a digital video recorder (DVR) to a personal computer (PC) and further to a handheld device. A DVR determines which devices on a Local Area Network (LAN) are authorized to share and/or retrieve content from the DVR. The DVR receives a connection request from a PC on the LAN, authorizes the connection request and establishes a secure connection between the DVR and the PC. Once the secure connection is established, the DVR receives a request for multimedia content from the PC, prepares the multimedia content for transfer and transfers the multimedia content to the PC.

2. 发明授权

US07934170B2 Method and apparatus for displaying branded video tags 有权
标题翻译：用于显示品牌视频标签的方法和装置
公开(公告)号：US07934170B2
公开(公告)日：2011-04-26
申请号：US11284457
申请日：2005-11-21
申请人： Richard Fulcher , David E. Pope , Margret Schmidt
发明人： Richard Fulcher , David E. Pope , Margret Schmidt
IPC分类号： G06F3/048
CPC分类号： H04N9/8042 , G06F3/0481 , G06F3/04817 , G11B27/32 , H04N1/2112 , H04N5/76 , H04N5/765 , H04N5/775 , H04N5/7755 , H04N5/781 , H04N5/85 , H04N5/913 , H04N5/95 , H04N7/088 , H04N7/173 , H04N7/17309 , H04N7/17318 , H04N9/8205 , H04N9/83 , H04N21/21 , H04N21/2393 , H04N21/2543 , H04N21/25816 , H04N21/4104 , H04N21/4122 , H04N21/4135 , H04N21/41407 , H04N21/4143 , H04N21/4147 , H04N21/4227 , H04N21/4312 , H04N21/4314 , H04N21/4331 , H04N21/4334 , H04N21/43615 , H04N21/43622 , H04N21/4367 , H04N21/440236 , H04N21/4405 , H04N21/4408 , H04N21/44204 , H04N21/454 , H04N21/472 , H04N21/4722 , H04N21/478 , H04N21/47815 , H04N21/4788 , H04N21/482 , H04N21/6175 , H04N21/632 , H04N21/6543 , H04N21/812 , H04N21/858 , H04N2005/91335 , H04N2005/91364
摘要： A method and apparatus for displaying branded video tags. An advertiser provides additional content associated with broadcast advertising content to a service provider that downloads the additional content to a digital video recorder (DVR). The service provider inserts command tags into the content that are intercepted by the DVR and interpreted as commands that instruct the DVR to perform specific actions when the DVR receives the stream from a broadcaster. The DVR intercepts and translates any tags inserted into the content stream while the DVR is playing the content stream. Tags can cause the DVR to display a branded video tag to the user which is a displayed icon that requests an interaction by the user and has an advertiser's logo(s) displayed in its vicinity.
摘要翻译：一种用于显示品牌视频标签的方法和装置。广告商向向数字录像机（DVR）下载附加内容的服务提供商提供与广播广告内容相关联的附加内容。服务提供商将命令标签插入由DVR拦截的内容中，并且被解释为当DVR从广播者接收到流时指示DVR执行特定动作的命令。当DVR播放内容流时，DVR截取并翻译插入到内容流中的任何标签。标签可以使DVR向用户显示品牌视频标签，该标签是要求用户交互并在其附近显示广告商标识的显示图标。

3. 发明申请

US20090052866A1 Method and apparatus for synthesizing a copy protection or content control signal with improved playability of a TV set 有权
标题翻译：用于合成具有改进的电视机播放性的复制保护或内容控制信号的方法和装置
公开(公告)号：US20090052866A1
公开(公告)日：2009-02-26
申请号：US12221817
申请日：2008-08-06
申请人： Ronald Quan
发明人： Ronald Quan
IPC分类号： H04N5/91 , H04N5/52
CPC分类号： H04N5/913 , H04N5/53 , H04N5/782 , H04N5/95 , H04N21/4318 , H04N2005/91314
摘要： Playability of a copy protected video signal is improved by reducing the darkening and or venetian blind effects which tend to cause artifacts in a video signal display. To this end, the copy protection signal includes automatic gain control (AGC) signals or pulses in video lines in a portion of the active or viewable video field or frame, wherein the AGC pulses comprise non similar AGC signals from one video line to another video line. The dis-similar AGC pulses may include pulses which are deleted, blanked, attenuated, pulse width modified, modulated, etc. In addition, selected sync pulses may be pulse width, amplitude and or position modified.
摘要翻译：通过减少倾向于在视频信号显示中造成伪影的变暗和/或威尼斯盲目效应来改善复制保护视频信号的可播放性。为此，复制保护信号包括在有源或可视视频场或帧的一部分中的视频行中的自动增益控制（AGC）信号或脉冲，其中AGC脉冲包括从一个视频行到另一个视频的非相似的AGC信号线。不相似的AGC脉冲可以包括被删除，消隐，衰减，脉冲宽度修改，调制等的脉冲。此外，所选择的同步脉冲可以是脉冲宽度，振幅和/或位置修改。

4. 发明申请

US20060127039A1 Method and apparatus for secure transfer of previously broadcasted content 有权
标题翻译：用于安全传送先前广播内容的方法和装置
公开(公告)号：US20060127039A1
公开(公告)日：2006-06-15
申请号：US11285411
申请日：2005-11-21
申请人： Wijnand van Stam
发明人： Wijnand van Stam
IPC分类号： H04N5/91
CPC分类号： H04N9/8042 , G06F3/0481 , G06F3/04817 , G11B27/32 , H04N1/2112 , H04N5/76 , H04N5/765 , H04N5/775 , H04N5/7755 , H04N5/781 , H04N5/85 , H04N5/913 , H04N5/95 , H04N7/088 , H04N7/173 , H04N7/17309 , H04N7/17318 , H04N9/8205 , H04N9/83 , H04N21/21 , H04N21/2393 , H04N21/2543 , H04N21/25816 , H04N21/4104 , H04N21/4122 , H04N21/4135 , H04N21/41407 , H04N21/4143 , H04N21/4147 , H04N21/4227 , H04N21/4312 , H04N21/4314 , H04N21/4331 , H04N21/4334 , H04N21/43615 , H04N21/43622 , H04N21/4367 , H04N21/440236 , H04N21/4405 , H04N21/4408 , H04N21/44204 , H04N21/454 , H04N21/472 , H04N21/4722 , H04N21/478 , H04N21/47815 , H04N21/4788 , H04N21/482 , H04N21/6175 , H04N21/632 , H04N21/6543 , H04N21/812 , H04N21/858 , H04N2005/91335 , H04N2005/91364
摘要： A method and apparatus for secure transfer of previously broadcasted content enables the secure transfer of previously broadcasted content between DVRs on a computer network.
摘要翻译：用于先前广播的内容的安全传送的方法和装置使得能够在计算机网络上的DVR之间安全地传送先前广播的内容。

5. 发明授权

US5309111A Apparatus for measuring skew timing errors 失效
标题翻译：用于测量偏差定时误差的装置
公开(公告)号：US5309111A
公开(公告)日：1994-05-03
申请号：US904632
申请日：1992-06-26
申请人： David L. McNeely , Greg A. Kranawetter
发明人： David L. McNeely , Greg A. Kranawetter
IPC分类号： G01R25/00 , H04N5/95 , H04N17/04 , H03K9/00
CPC分类号： H04N5/95
摘要： Apparatus for measuring skew in a clock signal for processing a video signal includes a cascade connection of a plurality of analog delay elements to which the clock signal is applied. The output connections of each analog delay element is coupled to a data input terminal of a respective storage element. A signal representative of the horizontal synchronizing signal is applied to the storage elements to simultaneously latch signal into the respective storage elements, thereby capturing a representative cycle of the sampling clock signal in the storage elements. Decoding circuitry is coupled to the storage elements for detecting the relative position of the e.g., leading transition of the sampling clock pulse immediately preceding the trailing transition of the horizontal pulse A ratio is calculated indicative of the skew error, which ratio corresponds to the position of the first transition, in units of delay, divided by the duration of the sampling clock period, in units of delay. In one embodiment presented, the ratio is a measure, as a fraction of a clock period, of the time interval between a predetermined transition of the horizontal synchronizing signal and the leading transition of the first sampling clock pulse following such predetermined transition.
摘要翻译：用于测量用于处理视频信号的时钟信号中的偏斜的装置包括施加时钟信号的多个模拟延迟元件的级联连接。每个模拟延迟元件的输出连接耦合到相应存储元件的数据输入端。表示水平同步信号的信号被施加到存储元件，以将信号同时锁存到相应的存储元件中，由此捕获存储元件中的采样时钟信号的代表性周期。解码电路耦合到存储元件，用于检测紧接在水平脉冲的拖尾转换之前的采样时钟脉冲的例如前导转变的相对位置，计算表示偏斜误差的比率，该比率对应于以延迟为单位的第一个转换除以采样时钟周期的持续时间，以延迟为单位。在所呈现的一个实施例中，该比率是水平同步信号的预定转变与这种预定转换之后的第一采样时钟脉冲的前导转变之间的时间间隔的时间周期的一小部分的度量。

6. 发明授权

US5241398A Dropout compensation during track jumps 失效
标题翻译：轨道跳跃时的压差补偿
公开(公告)号：US5241398A
公开(公告)日：1993-08-31
申请号：US719935
申请日：1991-06-24
申请人： Kaoru Urata , Yoshinori Suzuki
发明人： Kaoru Urata , Yoshinori Suzuki
IPC分类号： H04N5/783 , G11B5/027 , H04N5/93 , H04N5/94 , H04N5/95 , H04N9/87 , H04N9/88 , H04N9/896
CPC分类号： H04N5/95 , H04N5/94
摘要： Information signal reproducing apparatus operates to recover an information signal from record tracks at normal and fast-speed playback modes. Dropouts in the information signal reproduced from the tracks are detected to commence a correction signal interval which ends when a synchronizing signal in the reproduced information signal is detected. A corrected information signal is produced by substituting a correction signal for the reproduced information signal substantially throughout the correction signal interval when the apparatus operates in a fast-speed playback mode.
摘要翻译：信息信号再现装置用于以正常和快速重放模式从记录磁道恢复信息信号。检测从轨道再现的信息信号中的丢失，以开始在检测到再现信息信号中的同步信号时结束的校正信号间隔。当设备以快速重放模式操作时，通过在整个校正信号间隔中将校正信号代入重放信息信号来产生校正信息信号。

7. 发明授权

US5132957A Information signal recording and reproducing system capable of recording an information signal on a medium having a limited recording band width 失效
标题翻译：信息信号记录和再现系统能够在具有有限的记录带宽的介质上记录信息信号
公开(公告)号：US5132957A
公开(公告)日：1992-07-21
申请号：US426789
申请日：1989-10-25
申请人： Akira Mashimo
发明人： Akira Mashimo
IPC分类号： G11B7/004 , G11B20/06 , G11B20/08 , H04N5/92 , H04N5/95
CPC分类号： G11B7/004 , G11B20/06 , G11B20/08 , H04N5/92 , H04N5/95
摘要： An information signal recording and reproducing system for recording and reproducing an information signal on and from a recording medium comprises a modulation circuit for modulating the information signal to form a modulated signal involving a number of pulses, a first frequency divider triggered responsive to a leading edge of the pulses in the modulated signal to produce a first frequency-divided signal having a frequency substantially lower than that of the modulated signal, a second frequency divider triggered responsive to a trailing edge of the pulses in the modulated signal to produce a second frequency-divided signal having a frequency substantially lower than that of the modulated signal, a recording device for recording the first and second frequency-divided signals on the recording medium, a reproducing device for detecting the first and second frequency-divided signals recorded on the recording medium to produce a first reproduced frequency-divided signal and a second reproduced frequency-divided signal, a synthesizing circuit supplied with the first and second reproduced frequency-divided signals to produce a synthetic modulated signal corresponding to the modulated signal by performing an exclusive-or operation of the first and second frequency-divided signals, and a demodulating circuit supplied with the synthetic modulated signal to produce a reproduced information signal.
摘要翻译：一种用于在记录介质上记录和再现信息信号的信息信号记录和再现系统包括调制电路，用于调制信息信号以形成涉及多个脉冲的调制信号，响应于前沿触发的第一分频器的调制信号中的脉冲以产生具有基本上低于调制信号频率的频率的第一分频信号，第二分频器响应于调制信号中的脉冲的后沿而触发，以产生第二频分复用信号，具有基本上低于调制信号的频率的分频信号，用于在记录介质上记录第一和第二分频信号的记录装置，用于检测记录在记录介质上的第一和第二分频信号的再现装置以产生第一再现分频信号和第二代表合成电路，其被提供有第一和第二再现分频信号，以通过执行第一和第二分频信号的异或运算来产生与调制信号相对应的合成调制信号，以及解调电路提供合成调制信号以产生再现的信息信号。

8. 发明授权

US4675748A Time-base correcting device used in a disk reproducing device 失效
标题翻译：在盘再现装置中使用的时基校正装置
公开(公告)号：US4675748A
公开(公告)日：1987-06-23
申请号：US722202
申请日：1985-04-11
申请人： Keiji Masaki
发明人： Keiji Masaki
IPC分类号： G11B20/00 , G11B7/00 , G11B7/005 , G11B7/08 , G11B7/095 , G11B20/10 , H04N5/95 , H04N9/802 , H04N5/85
CPC分类号： G11B7/005 , G11B7/081 , H04N5/95 , H04N9/802
摘要： A disk reproducing device which can detect and reproduce information from both a video disk and a digital audio disk. During reproduction of a DAD wherein correction by a time base correcting means is unnecessary, the device presents misoperation and unnecessary operation caused by an output of a time base error producing circuit. The device comprises interrupting means for selectively interrupting supply of an output of a time base error detecting means to a time base correcting means, whereby the output of the time base error detecting means is interrupted during reproduction of a digital audio disk.
摘要翻译：一种能够从视盘和数字音频盘检测和再现信息的盘再现装置。在不需要时基校正装置进行校正的DAD的再现期间，设备出现由时基误差产生电路的输出引起的误操作和不必要的操作。该装置包括用于选择性地中断时基误差检测装置的输出到时基校正装置的中断装置，由此在数字音频盘的再现期间中断时基误差检测装置的输出。

9. 发明授权

US4549229A Method and apparatus for compensating for tape jitter during recording and reproducing of a video signal and PCM audio signal 失效
标题翻译：在视频信号和PCM音频信号的记录和再现期间补偿磁带抖动的方法和装置
公开(公告)号：US4549229A
公开(公告)日：1985-10-22
申请号：US462517
申请日：1983-01-31
申请人： Kenji Nakano , Hisayoshi Moriwaki , Takao Takahashi
发明人： Kenji Nakano , Hisayoshi Moriwaki , Takao Takahashi
IPC分类号： H04N5/928 , H04N5/95 , G11B5/09
CPC分类号： H04N5/95 , H04N5/928
摘要： Apparatus for recording and reproducing an information signal comprised of a video signal and an audio signal in a plurality of successive tracks on a magnetic tape, includes a recording section comprised of a PCM processor which converts the audio signal to a PCM audio signal and compresses the same, a dummy signal generator for compensating for tape jitter by generating a dummy signal and supplying the same to the PCM processor where the dummy signal is added both before and after each portion of the compressed PCM audio signal to be recorded in an overscan section of each track, and a magnetic head assembly which records the video signal in a main section of each track and each portion of the compressed PCM audio signal and dummy signal added thereto in the overscan section of each track; and a reproducing section comprised of a magnetic head assembly which scans the tracks to reproduce the information signal recorded therein, a switch assembly which separates the video signal reproduced from the main section of each track and the PCM audio signal reproduced from the overscan section of each track; a PCM processor which converts the PCM audio signal to the original analog audio signal and a timing signal generator for compensating for tape jitter by enabling the PCM processor only during a period slightly greater than the period of the PCM audio signal recorded in the overscan section of each track.
摘要翻译：用于在磁带上的多个连续轨道中记录和再现由视频信号和音频信号组成的信息信号的装置包括：PCM处理器的记录部分，该PCM处理器将音频信号转换成PCM音频信号并压缩相同的虚拟信号发生器，用于通过产生虚拟信号来补偿磁带抖动，并将其提供给PCM处理器，在PCM处理器中，将待记录的压缩PCM音频信号的每个部分之前和之后添加虚拟信号，每个轨道和磁头组件，其将每个轨道的主要部分中的视频信号和压缩的PCM音频信号的每个部分以及添加到其中的虚拟信号记录在每个磁道的过扫描部分中; 以及由磁头组件组成的再现部分，该磁头组件扫描轨道以再现记录在其中的信息信号;开关组件，其将从每个磁道的主要部分再现的视频信号和从每个磁道的过扫描部分再现的PCM音频信号分离; 跟踪; PCM处理器，其将PCM音频信号转换为原始模拟音频信号;以及定时信号发生器，用于通过仅在稍微大于记录在过扫描部分中的PCM音频信号的周期的周期内使能PCM处理器来补偿磁带抖动每个轨道。

10. 发明授权

US4357626A System for broadcasting audio-visual television signals synchronized by a pilot frequency and method for the application of said system 失效
标题翻译：用于播放通过导频同步的视听电视信号的系统和用于所述系统的应用的方法
公开(公告)号：US4357626A
公开(公告)日：1982-11-02
申请号：US88354
申请日：1979-10-26
申请人： Rene Romeas
发明人： Rene Romeas
IPC分类号： H04N5/91 , H04N5/92 , H04N5/932 , H04N5/95 , H04N7/00 , H04N9/86 , H04N9/87 , H04N5/76
CPC分类号： H04N9/87 , H04N5/92 , H04N5/932 , H04N5/95 , H04N9/86
摘要： In a system for broadcasting audio-visual television signals, a pure-frequency pilot signal is recorded concurrently with the video signals. The synchronizing signals which are necessary for reproduction of the aduio-visual signals are reconstituted from the pilot signal during the reading process.
摘要翻译：在用于广播视听电视信号的系统中，与视频信号同时记录纯频率导频信号。在读取过程中，从导频信号重新构成用于再生视觉信号所需的同步信号。

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