METHOD AND APPARATUS FOR SIMULTANEOUS RECORDING AND DISPLAYING TWO DIFFERENT VIDEO PROGRAMS
    2.
    发明公开
    METHOD AND APPARATUS FOR SIMULTANEOUS RECORDING AND DISPLAYING TWO DIFFERENT VIDEO PROGRAMS 有权
    用于同时记录和显示两个不同视频节目的方法和设备

    公开(公告)号:EP1264476A2

    公开(公告)日:2002-12-11

    申请号:EP01959950.5

    申请日:2001-03-08

    IPC分类号: H04N5/45 H04N5/44

    摘要: A method and apparatus for simultaneously recording and displaying video signals from two different video sources. The apparatus comprises a main channel processing circuit (148), a second channel processing circuit (150), and common circuitry (152). The common circuit comprises a digital video decoder pipe (112) that decodes both first and second encoded video signals. A PIP picture is produced using a common reference clock that is derived from the first video signal. In a record mode, a second channel clock reference is coupled to the second channel processing circuit to produce a recordable signal using a digital encoder. The recordable signal also forms a PIP picture that is coupled to the main channel processing circuit to produce a PIP picture that is used to monitor the recording process.

    摘要翻译: 一种用于同时记录和显示来自两个不同视频源的视频信号的方法和装置。 该装置包括主信道处理电路(148),第二信道处理电路(150)和公共电路(152)。 该公共电路包括解码第一和第二编码视频信号的数字视频解码器管道(112)。 使用从第一视频信号导出的公共参考时钟产生PIP图片。 在记录模式中,第二通道时钟参考被耦合到第二通道处理电路以使用数字编码器产生可记录信号。 可记录信号还形成PIP图像,该PIP图像被耦合到主信道处理电路以产生用于监视记录过程的PIP图像。

    METHOD AND APPARATUS FOR SIMULTANEOUS RECORDING AND DISPLAYING TWO DIFFERENT VIDEO PROGRAMS
    3.
    发明公开
    METHOD AND APPARATUS FOR SIMULTANEOUS RECORDING AND DISPLAYING TWO DIFFERENT VIDEO PROGRAMS 有权
    方法和设备进行即时录音,演奏两个不同视频节目

    公开(公告)号:EP1264475A2

    公开(公告)日:2002-12-11

    申请号:EP01916651.1

    申请日:2001-03-13

    IPC分类号: H04N5/45 H04N5/44

    摘要: A method and apparatus for simultaneously recording and displaying video signals from two different video sources. The apparatus comprises a main channel processing circuit/logic (148), a second channel processing circuit/logic (150), and common circuitry/logic (152). The common circuitry comprises a digital video encoder pipe (112) that decodes both a first and second encoded video signals. The main channel processing circuit processes a first decoded video signal utilizing a first clock to form a main picture for display. The second channel processing circuit processes a second decoded video signal to form a PIP picture for combination with the main picture for display. The PIP picture is produced using a second clock signal that is independent from the first clock signal. In a record mode, the second channel clock is coupled to the second channel processing circuit to produce a recordable signal using a digital encoder. The recordable signal also forms the PIP picture that is coupled to the main channel processing circuit to produce a PIP picture that is used to monitor the recording process.

    Parallel digitizing and processing of plural analogue television signals
    4.
    发明授权
    Parallel digitizing and processing of plural analogue television signals 有权
    并行数字化和多路模拟电视信号的处理

    公开(公告)号:EP1221262B1

    公开(公告)日:2004-08-11

    申请号:EP00973454.2

    申请日:2000-10-11

    IPC分类号: H04N9/66

    摘要: A digital and analog television signal digitization and processing device that performs the digitization and processing functions using a common reference frequency source that is used to generate multiple subclock signals, wherein the reference frequency source is independent of any synchronizing characteristic of the input signal. For dual channel analog signal processing, the common frequency source is not locked to either channel/input signal. Digital signal processing is accomplished based on the same common reference frequency source. Advantageously, the present invention allows all of the analog-to-digital converters and decoder circuitry/logic necessary for simultaneously digitizing and processing several analog and digital television signals to be integrated on a single integrated circuit as well as eliminating duplicate frequency generation circuits.

    HIGH-DEFINITION DE-INTERLACING AND FRAME DOUBLING CIRCUIT AND METHOD
    5.
    发明公开
    HIGH-DEFINITION DE-INTERLACING AND FRAME DOUBLING CIRCUIT AND METHOD 审中-公开
    电路和方法高清交错和单倍增

    公开(公告)号:EP1552691A1

    公开(公告)日:2005-07-13

    申请号:EP03763190.0

    申请日:2003-07-02

    IPC分类号: H04N7/01 H04N11/20

    摘要: A combined de-interlacing and frame doubling system (114, 114' and 114'') advantageously serves to de-interlace successive lines of Present Field Video data at twice the field rate to yield an output bit stream suitable for display on display device that utilizes progressive scanning. The de-interlacing and frame doubling system in accordance with present principles includes a frame memory mechanism (116, 116' and 116'') for storing at least one frame of interlaced video having a prescribed field rate. At least one de-interlacing circuit (11401, 1140'1, 1140'') pulls at least two fields of video data from the memory mechanism at a rate of at least twice the field rate for performing a full de-interlacing function in half of a field period to generate the a progressive, frame doubled signal for receipt at the display device.

    METHOD AND APPARATUS FOR ENHANCING GREEN CONTRAST OF A COLOR VIDEO SIGNAL
    6.
    发明授权
    METHOD AND APPARATUS FOR ENHANCING GREEN CONTRAST OF A COLOR VIDEO SIGNAL 有权
    方法和设备用于提高彩色电视信号的绿色对比度

    公开(公告)号:EP1232653B1

    公开(公告)日:2003-04-23

    申请号:EP00980449.3

    申请日:2000-11-16

    IPC分类号: H04N9/64

    CPC分类号: H04N9/643

    摘要: Method and apparatus for automatically enhancing the foliage display of a color signal includes providing the color signal in multiplexed form having alternating first and second components, the first component being substantially aligned with a flesh tone color space axis, the second component being substantialy aligned with a green tone color space axis. A de-multiplexing unit separates the first and second components to provide a first de-multiplexed component substantially aligned with the flesh tone axis and a second de-multiplexed component substantially aligned with the green tone axis. A processing unit generates from the de-multiplexed components a green tone enhancement control signal for increasing green tone contrast of the color signal; and a modifying unit modifies the magnitude of the multiplexed color signal by applying the multiplexed color signal and the green tone enhancement control signal to a multiplier to provide a modified multiplexed output signal at an output having enhanced foliage contrast. In an examplary embodiment, the green enhancement control signal and a flesh tone enhancement control signal are applied to a common multiplier thereby advantageously providing both flesh tone and foliage enhancement with an absolute minimum of circuitry for the combined functions.

    DIGITAL SYSTEM PREPARED FOR COBLE WITH 1394 DE-SCRAMBLING MODULE
    7.
    发明公开
    DIGITAL SYSTEM PREPARED FOR COBLE WITH 1394 DE-SCRAMBLING MODULE 审中-公开
    数字系统专为科布尔1394ENTWÜRFLUNGSMODUL

    公开(公告)号:EP1415462A1

    公开(公告)日:2004-05-06

    申请号:EP02762123.4

    申请日:2002-04-15

    IPC分类号: H04N5/00 H04N7/16

    摘要: A digital, cable ready television functions without a standard point-of-deployment (POD) interface module. The television utilizes an IEEE 1394 compatible interface and module to perform processing functions, such as descrambling scrambled signals, and providing electronic program guide (EPG) information. The television receives an input signal containing scrambled signals. The scrambled signals are switched out of the main transport data stream to the descrambler via the IEEE 1394 compatible interface. The scrambled signals are descrambled in accordance with permission information embedded in the input signal and recombined with the main transport data stream, via the IEEE 1394 compatible interface, wherein descrambled signals replace scrambled signals. The combined signal is provided to a display/audio device in any appropriate format, such as HD-MPEG. The IEEE 1394 compatible interface module may also provide copy protected content.

    METHOD AND APPARATUS FOR ENHANCING GREEN CONTRAST OF A COLOR VIDEO SIGNAL
    8.
    发明公开
    METHOD AND APPARATUS FOR ENHANCING GREEN CONTRAST OF A COLOR VIDEO SIGNAL 有权
    方法和设备用于提高彩色电视信号的绿色对比度

    公开(公告)号:EP1232653A1

    公开(公告)日:2002-08-21

    申请号:EP00980449.3

    申请日:2000-11-16

    IPC分类号: H04N9/64

    CPC分类号: H04N9/643

    摘要: Method and apparatus for automatically enhancing the foliage display of a color signal includes providing the color signal in multiplexed form having alternating first and second components, the first component being substantially aligned with a flesh tone color space axis, the second component being substantialy aligned with a green tone color space axis. A de-multiplexing unit separates the first and second components to provide a first de-multiplexed component substantially aligned with the flesh tone axis and a second de-multiplexed component substantially aligned with the green tone axis. A processing unit generates from the de-multiplexed components a green tone enhancement control signal for increasing green tone contrast of the color signal; and a modifying unit modifies the magnitude of the multiplexed color signal by applying the multiplexed color signal and the green tone enhancement control signal to a multiplier to provide a modified multiplexed output signal at an output having enhanced foliage contrast. In an examplary embodiment, the green enhancement control signal and a flesh tone enhancement control signal are applied to a common multiplier thereby advantageously providing both flesh tone and foliage enhancement with an absolute minimum of circuitry for the combined functions.

    DIGITAL AND ANALOG TELEVISION SIGNAL DIGITIZATION AND PROCESSING DEVICE
    9.
    发明公开
    DIGITAL AND ANALOG TELEVISION SIGNAL DIGITIZATION AND PROCESSING DEVICE 有权
    并行数字化和多路模拟电视信号的处理

    公开(公告)号:EP1221262A1

    公开(公告)日:2002-07-10

    申请号:EP00973454.2

    申请日:2000-10-11

    IPC分类号: H04N9/66

    摘要: A digital and analog television signal digitization and processing device that performs the digitization and processing functions using a common reference frequency source that is used to generate multiple subclock signals, wherein the reference frequency source is independent of any synchronizing characteristic of the input signal. For dual channel analog signal processing, the common frequency source is not locked to either channel/input signal. Digital signal processing is accomplished based on the same common reference frequency source. Advantageously, the present invention allows all of the analog-to-digital converters and decoder circuitry/logic necessary for simultaneously digitizing and processing several analog and digital television signals to be integrated on a single integrated circuit as well as eliminating duplicate frequency generation circuits.