Method and system for maintaining even tube burn-in

    公开(公告)号:US07245316B2

    公开(公告)日:2007-07-17

    申请号:US10056914

    申请日:2002-01-25

    IPC分类号: H04N3/20

    CPC分类号: H04N3/20

    摘要: An arrangement for maintaining even tube burn-in. The arrangement identifies active and inactive display regions on a display unit when video content is displayed on the display unit. When inactive display regions are identified the arrangement monitors the duration that the active display regions remain active. After the active display regions become inactive and a predetermined time period has passed the arrangement displays a corrective image on the identified inactive regions. The predetermined time period may be set by a user or based on the user's viewing habits.

    Method and apparatus for providing adaptive horizontal sync detection
    3.
    发明授权
    Method and apparatus for providing adaptive horizontal sync detection 失效
    用于提供自适应水平同步检测的方法和装置

    公开(公告)号:US06943828B1

    公开(公告)日:2005-09-13

    申请号:US10049451

    申请日:2000-08-17

    CPC分类号: H04N17/00 H04N5/10

    摘要: A method and apparatus for providing adaptive horizontal synchronization (sync) signal detection to identify whether a high quality television signal is being received by a television set. The method determines whether no signal is applied, whether a weak signal is applied or a strong signal is applied to the television set by sampling and processing the horizontal synchronization signal. The signals are classified by comparing the sample horizontal synchronization signals to a predefined threshold. The threshold is established based upon the type of source that produced the television signal.

    摘要翻译: 一种用于提供自适应水平同步(sync)信号检测以识别电视机是否正在接收高质量电视信号的方法和装置。 该方法通过采样和处理水平同步信号来确定是否施加信号,是否施加弱信号或强信号被施加到电视机。 通过将样本水平同步信号与预定阈值进行比较来分类信号。 基于产生电视信号的源的类型建立阈值。

    Method and system for maintaining even tube burn-in
    4.
    发明授权
    Method and system for maintaining even tube burn-in 有权
    维持均匀管烧伤的方法和系统

    公开(公告)号:US07750938B2

    公开(公告)日:2010-07-06

    申请号:US11707499

    申请日:2007-02-16

    IPC分类号: H04N3/20 G06F3/048

    CPC分类号: H04N3/20

    摘要: An arrangement for maintaining even tube burn-in. The arrangement identifies active and inactive display regions on a display unit when video content is displayed on the display unit. When inactive display regions are identified the arrangement monitors the duration that the active display regions remain active. After the active display regions become inactive and a predetermined time period has passed the arrangement displays a corrective image on the identified inactive regions. The predetermined time period may be set by a user or based on the user's viewing habits.

    摘要翻译: 用于维持甚至管烧伤的布置。 当在显示单元上显示视频内容时,该装置识别显示单元上的有源和非活动显示区域。 当识别不活动的显示区域时,排列监视活动显示区域保持活动的持续时间。 在活动显示区域变得不活动并且经过预定时间段之后,该布置在所识别的非活动区域上显示校正图像。 预定时间段可以由用户设置或者基于用户的观看习惯。

    Pre-Processing of Descrambling Data to Reduce Channel-Change Time
    5.
    发明申请
    Pre-Processing of Descrambling Data to Reduce Channel-Change Time 审中-公开
    解码数据的预处理以减少信道变化时间

    公开(公告)号:US20090153747A1

    公开(公告)日:2009-06-18

    申请号:US10568003

    申请日:2004-01-20

    IPC分类号: H04N5/50

    摘要: This invention discloses an apparatus and a method for receiving a plurality of encrypted digital video, audio and data that require an encryption key to decode before utilizing. Specifically the invention is directed toward devices such as cable and digital broadcast satellite systems that transmit multiple channel information to receivers that provide users access to the multiple channels upon particular channel selection. Such channel selection requires decrypting and formatting a new data stream through a time consuming electronic process. The invention described herein reduces channel change time, by monitoring de-scrambled data in the background, prior to a user selecting a new channel. Digital broadcast data contain input de-scrambling control words required for the decoding of N-bit de-scrambling keys for each of a multiplicity of digital data streams available. Storing the data control words or the N-bit descramble keys reduces subsequent retrieval decoding time. However, utilizing the control words to descramble the N-bit de-scrambling keys and then storing the N-bit de-scrambling keys, typically yields the greatest gain in reducing channel change time.

    摘要翻译: 本发明公开了一种用于在使用之前接收需要加密密钥进行解码的多个加密的数字视频,音频和数据的装置和方法。 具体地,本发明涉及诸如有线和数字广播卫星系统的装置,其向接收机发送多个信道信息,所述接收机在特定信道选择时向用户提供对多个信道的访问。 这种信道选择需要通过耗时的电子过程解密和格式化新的数据流。 本文描述的本发明通过在用户选择新信道之前监视后台的解扰数据来减少信道改变时间。 数字广播数据包含用于对可用的多个数字数据流中的每一个解码N位去加扰密钥所需的输入解扰控制字。 存储数据控制字或N位解扰键减少随后的检索解码时间。 然而,利用控制字来解扰N位解密密钥,然后存储N位去加扰密钥,通常在减少信道改变时间方面产生最大的增益。

    Method and apparatus for caching access information for faster digital cable tuning
    6.
    发明申请
    Method and apparatus for caching access information for faster digital cable tuning 审中-公开
    用于缓存访问信息以用于更快速的数字电缆调谐的方法和装置

    公开(公告)号:US20090046855A1

    公开(公告)日:2009-02-19

    申请号:US11920182

    申请日:2006-05-05

    IPC分类号: H04N7/167

    摘要: A method and apparatus is presented for providing faster tuning of a digital television channel. Specifically, the present invention is directed to a digital television receiver including a tuner, at least one demodulator, a detachable security module such as a point of deployment (POD) module, a transport demultiplexer, and a microprocessor having a cache or memory device for storing “conditional access program map table” (CA_PMT) information. The cache or memory device is used to store the CA_PMT for each channel, so that upon a channel change requested by a user, the receiver may extract the stored CA_PMT from the cache rather than wait for the full program map table (PMT) to be transmitted by the broadcaster (see FIG. 2). In this way, the time required to display a requested digital television channel is significantly reduced.

    摘要翻译: 提出了一种用于提供数字电视频道的更快调谐的方法和装置。 具体地,本发明涉及一种数字电视接收机,包括调谐器,至少一个解调器,诸如展开点(POD)模块的可拆卸安全模块,传输解复用器和具有用于 存储“条件访问程序映射表”(CA_PMT)信息。 高速缓存或存储设备用于存储每个通道的CA_PMT,使得在用户请求的频道改变时,接收机可以从缓存中提取所存储的CA_PMT,而不是等待完整节目映射表(PMT)为 由广播者传送(参见图2)。 以这种方式,显着地减少显示所请求的数字电视频道所需的时间。