Optimal encoder and encoding method for dual stream system
    11.
    发明授权
    Optimal encoder and encoding method for dual stream system 失效
    双流系统的最佳编码和编码方法

    公开(公告)号:US08050346B2

    公开(公告)日:2011-11-01

    申请号:US11996085

    申请日:2006-07-19

    IPC分类号: H04L5/12 H03M13/03

    摘要: Provided are a method of estimating an encoder for dual stream transmission, and an encoder using the same. The method includes the steps of: a) setting up the number of memories required for an encoder, a free distance condition for robust data, and a free distance condition for mixed stream of robust data and normal data; b) obtaining ½ rate encoder combinations that sustain backward compatibility with a typical trellis encoder; c) obtaining encoder combinations H that satisfy the free distance condition for the robust data and the free distance condition for the mixed stream from the ½ rate encoder combinations; d) obtaining relations between memories and input/output signals, which satisfy the encoder combinations H; and e) configuring an encoder according to the obtained relation between the memories and the input/output signals.

    摘要翻译: 提供了一种用于估计用于双流传输的编码器的方法,以及使用该编码器的编码器。 该方法包括以下步骤:a)建立编码器所需的存储器数量,鲁棒数据的自由距离条件以及稳健数据和正常数据的混合流的自由距离条件; b)获得与典型网格编码器保持向后兼容性的1/2速率编码器组合; c)获得满足来自1/2速率编码器组合的混合流的鲁棒数据和自由距离条件的自由距离条件的编码器组合H; d)获得满足编码器组合H的存储器和输入/输出信号之间的关系; 以及e)根据获得的存储器与输入/输出信号之间的关系配置编码器。

    OPTIMAL ENCODER AND ENCODING METHOD FOR DUAL STREAM SYSTEM
    12.
    发明申请
    OPTIMAL ENCODER AND ENCODING METHOD FOR DUAL STREAM SYSTEM 失效
    双流系统的最佳编码器和编码方法

    公开(公告)号:US20090220020A1

    公开(公告)日:2009-09-03

    申请号:US11996085

    申请日:2006-07-19

    IPC分类号: H03M13/25 H04L5/12

    摘要: Provided are a method of estimating an encoder for dual stream transmission, and an encoder using the same. The method includes the steps of: a) setting up the number of memories required for an encoder, a free distance condition for robust data, and a free distance condition for mixed stream of robust data and normal data; b) obtaining ½ rate encoder combinations that sustain backward compatibility with a typical trellis encoder; c) obtaining encoder combinations H that satisfy the free distance condition for the robust data and the free distance condition for the mixed stream from the ½ rate encoder combinations; d) obtaining relations between memories and input/output signals, which satisfy the encoder combinations H; and e) configuring an encoder according to the obtained relation between the memories and the input/output signals.

    摘要翻译: 提供了一种用于估计用于双流传输的编码器的方法,以及使用该编码器的编码器。 该方法包括以下步骤:a)建立编码器所需的存储器数量,鲁棒数据的自由距离条件以及稳健数据和正常数据的混合流的自由距离条件; b)获得与典型网格编码器保持向后兼容性的1/2速率编码器组合; c)获得满足来自1/2速率编码器组合的混合流的鲁棒数据和自由距离条件的自由距离条件的编码器组合H; d)获得满足编码器组合H的存储器和输入/输出信号之间的关系; 以及e)根据获得的存储器与输入/输出信号之间的关系配置编码器。

    DIGITAL TELEVISION TRANSMISSION AND RECEIVING APPARATUS AND METHOD USING 1/4 RATE CODED ROBUST DATA
    13.
    发明申请
    DIGITAL TELEVISION TRANSMISSION AND RECEIVING APPARATUS AND METHOD USING 1/4 RATE CODED ROBUST DATA 有权
    数字电视传输和接收装置和使用1/4速率编码稳健数据的方法

    公开(公告)号:US20090201997A1

    公开(公告)日:2009-08-13

    申请号:US11575242

    申请日:2005-09-15

    IPC分类号: H04N7/12 H04N5/38 H04N7/173

    摘要: Provided is a Vestigial Side Band Digital Television (DTV) transmitter/receiver based on Advanced Television System Committee A/53. The invention provides DTV transmitter/receiver having a dual stream structure through generation of robust data which has a transmission rate a fourth as fast as that of normal data, and a method thereof. The DTV transmitter includes: input means for receiving digital video data stream including normal and robust data; encoding means for performing ¼ rate coding on the digital video data stream so that one bit can be transmitted through two symbols; and transmitting means for modulating/transmitting output signals of the encoding means. This invention can reduce SNR and satisfy TOV of robust data by performing additional FEC on robust data, transmitting/receiving ¼ rate coded robust data, which are capable of transmitting one-bit data for two symbols, and improving decoding ability of an equalizer and a trellis decoder of a DTV receiver.

    摘要翻译: 提供了基于先进电视系统委员会A / 53的残留边带数字电视(DTV)发射机/接收机。 本发明提供具有双流结构的DTV发射机/接收机及其方法,该DTV发射机/接收机通过生成具有与正常数据相同的速度的传输速率的鲁棒数据。 DTV发射机包括:用于接收包括正常和鲁棒数据的数字视频数据流的输入装置; 编码装置,用于对数字视频数据流执行¼速率编码,使得可以通过两个符号发送一个比特; 以及发送装置,用于调制/发送编码装置的输出信号。 本发明可以通过对鲁棒数据,发送/接收速率编码的鲁棒数据执行额外的FEC来降低SNR并满足鲁棒数据的TOV,该数据能够传送两个符号的一位数据,提高均衡器的解码能力和 网格解码器的DTV接收机。

    Apparatus and method for receiving digital television signal with backward compatibility byte
    14.
    发明授权
    Apparatus and method for receiving digital television signal with backward compatibility byte 有权
    用后接兼容字节接收数字电视信号的装置和方法

    公开(公告)号:US07712011B2

    公开(公告)日:2010-05-04

    申请号:US10594466

    申请日:2005-04-01

    IPC分类号: H03M13/00

    摘要: Provided are a Vestigial Side Band (VSB) digital television (DTV) receiver based on is A/53 of the Advanced Television System Committee (ATSC) that can secure backward compatibility of a low-ranked DTV receiver by using parity bytes added to robust data for error correction and obtain RS coding gain from the robust data, and a method thereof. The DTV receiver includes: a receiving unit for receiving a transmission signal including general data and robust data and converting the transmission signal into a base-band signal; an equalizer for determining a symbol level of the transmission signal; a trellis decoder for performing trellis decoding on a symbol of the determined level; a nonsystematic Reed Solomon (NRS) decoder for performing NRS decoding on the trellis-decoded robust data and correcting an error; and a restoring unit for restoring a digital video data stream with respect to the trellis-decoded general data and the NRS-decoded robust data.

    摘要翻译: 提供了一种基于高级电视系统委员会(ATSC)的A / 53的残留边带(VSB)数字电视(DTV)接收机,其可以通过使用添加到鲁棒数据的奇偶校验字节来确保低等级DTV接收机的向后兼容性 用于纠错并从鲁棒数据获得RS编码增益及其方法。 DTV接收机包括:接收单元,用于接收包括通用数据和鲁棒数据的发送信号,并将发送信号转换成基带信号; 均衡器,用于确定发送信号的符号电平; 网格解码器,用于对所确定的级别的符号执行网格解码; 用于对网格解码的鲁棒数据执行NRS解码并校正错误的非系统的Reed Solomon(NRS)解码器; 以及恢复单元,用于相对于网格解码的一般数据和NRS解码的鲁棒数据恢复数字视频数据流。

    Digital television transmission and receiving apparatus and method using 1/4 rate coded robust data
    15.
    发明授权
    Digital television transmission and receiving apparatus and method using 1/4 rate coded robust data 有权
    数字电视发射和接收装置和方法,使用1/4速率编码的鲁棒数据

    公开(公告)号:US08638860B2

    公开(公告)日:2014-01-28

    申请号:US11575242

    申请日:2005-09-15

    IPC分类号: H04N7/12 H04N11/02 H04N11/04

    摘要: Provided is a Vestigial Side Band Digital Television (DTV) transmitter/receiver based on Advanced Television System Committee A/53. The invention provides DTV transmitter/receiver having a dual stream structure through generation of robust data which has a transmission rate a fourth as fast as that of normal data, and a method thereof. The DTV transmitter includes: input means for receiving digital video data stream including normal and robust data; encoding means for performing ¼ rate coding on the digital video data stream so that one bit can be transmitted through two symbols; and transmitting means for modulating/transmitting output signals of the encoding means. This invention can reduce SNR and satisfy TOV of robust data by performing additional FEC on robust data, transmitting/receiving ¼ rate coded robust data, which are capable of transmitting one-bit data for two symbols, and improving decoding ability of an equalizer and a trellis decoder of a DTV receiver.

    摘要翻译: 提供了基于先进电视系统委员会A / 53的残留边带数字电视(DTV)发射机/接收机。 本发明提供具有双流结构的DTV发射机/接收机及其方法,该DTV发射机/接收机通过生成具有与正常数据相同的速度的传输速率的鲁棒数据。 DTV发射机包括:用于接收包括正常和鲁棒数据的数字视频数据流的输入装置; 编码装置,用于对数字视频数据流执行¼速率编码,使得可以通过两个符号发送一个比特; 以及发送装置,用于调制/发送编码装置的输出信号。 本发明可以通过对鲁棒数据,发送/接收速率编码的鲁棒数据执行额外的FEC来降低SNR并满足鲁棒数据的TOV,该数据能够传送两个符号的一位数据,提高均衡器的解码能力和 网格解码器的DTV接收机。

    Method and apparatus for capturing image in portable terminal
    19.
    发明授权
    Method and apparatus for capturing image in portable terminal 有权
    用于在便携式终端中捕获图像的方法和装置

    公开(公告)号:US09124794B2

    公开(公告)日:2015-09-01

    申请号:US13219915

    申请日:2011-08-29

    IPC分类号: H04N5/232 H04N5/335

    摘要: The present disclosure relates to a method and an apparatus for capturing an image in a portable terminal. Upon receiving an image for preview and an image for capture simultaneously by a camera module, the controller simultaneously outputs the image for the preview and the image for the capture to a main controller during a simultaneous output mode. The received image for the preview is displayed and stored for a predetermined time period for a subsequent retrieval, so that when a capture key is pressed to capture a target object, the stored image corresponding to a time point at which the capture key is activated is retrieved and stored.

    摘要翻译: 本公开涉及一种用于在便携式终端中捕获图像的方法和装置。 一旦接收到用于预览的图像和用于由相机模块同时捕获的图像,则控制器在同时输出模式期间同时将用于预览的图像和用于捕获的图像输出到主控制器。 所接收的预览图像被显示并存储预定时间段以用于随后检索,使得当按下捕获键以捕获目标对象时,对应于捕获密钥被激活的时间点的所存储的图像是 检索并存储。