TABLE LOOK-UP OF NON-LINEAR FUNCTIONS USING REDUCED-SIZED ROM
    1.
    发明申请
    TABLE LOOK-UP OF NON-LINEAR FUNCTIONS USING REDUCED-SIZED ROM 审中-公开
    使用减小尺寸的ROM查看非线性函数

    公开(公告)号:WO1982002637A1

    公开(公告)日:1982-08-05

    申请号:PCT/US1982000086

    申请日:1982-01-25

    Applicant: RCA CORP

    Abstract: A digital memory (10) which contains digital data words representative of a desired symmetrical transfer characteristic of a digital signal processor. Digital signals which are to be processed are applied to the address inputs of the memory (10), producing output signals in conformance with the desired transfer characteristic. Advantage is taken of the symmetrical nature of the response characteristic to minimize the size of the memory. Data words corresponding to only a portion of the full dynamic range of the digital signal processor are stored in the memory (10), and memory locations are addressed and read out in accordance with the value of a polarity-determining bit of the input digital signal, with the output signals being translated over the required full dynamic range in accordance with the value of the polarity-determining bit. In a preferred embodiment of the invention, the memory (10) is a random access memory, with stored data values being altered in response to a user control to change the transfer characteristic of the processor.

    Abstract translation: 数字存储器(10),其包含表示数字信号处理器的期望对称传送特性的数字数据字。 要处理的数字信号被施加到存储器(10)的地址输入端,产生符合期望传输特性的输出信号。 利用响应特性的对称性优点来最小化存储器的大小。 仅对应于数字信号处理器的全部动态范围的一部分的数据字被存储在存储器(10)中,并且根据输入数字信号的极性确定位的值来寻址和读出存储单元 ,其中输出信号根据极性确定位的值在所需的全动态范围内转换。 在本发明的优选实施例中,存储器(10)是随机存取存储器,响应于用户控制改变存储的数据值,改变处理器的传送特性。

    ADAPTIVE RECONSTRUCTION OF INFORMATION SIGNALS IN A PLURAL CHANNEL SYSTEM.
    2.
    发明公开
    ADAPTIVE RECONSTRUCTION OF INFORMATION SIGNALS IN A PLURAL CHANNEL SYSTEM. 失效
    在多通道系统信息信号的自适应重构。

    公开(公告)号:EP0056402A4

    公开(公告)日:1985-10-14

    申请号:EP81902150

    申请日:1981-07-20

    Applicant: RCA CORP

    CPC classification number: H04N11/048

    Abstract: Apparatus for processing information signals in a plurality of information channels comprises a comparator (634-648) for comparing samples of a first information signal in a first channel (Y) with a plurality of selected combinations of the samples of the first signal (Y). A selecting means (650) selects from among the plurality of selected combinations that combination which is the best match with the samples being compared. A generating means (706- 772) generates new samples within at least a second of the plurality of information channels (I) by use of the signal (I) in the second channel and the best match combination.

    SIGNAL TRANSMISSION DEVICE
    8.
    发明专利

    公开(公告)号:JPH0698352A

    公开(公告)日:1994-04-08

    申请号:JP22947291

    申请日:1991-08-14

    Applicant: RCA CORP

    Abstract: PURPOSE: To reduce the sampling rate and the quantity of used hardware at the time of transmitting information signal samples obtained from a plurality of channels. CONSTITUTION: Decoders 22R, 22G, and 22B transmit the signal samples of a plurality of channels supplied to inputs 16, 18, and 20 by alternately selecting the samples. The decoders 22R, 22G, and 22B also select the direction in which the variation amount of sample pairs is the smallest among transmitting directions around the alternately left samples and transmit control signals (SM) indicating the selected direction. On the receiving side, complete information signals are reproduced, together with the transmitted signals by reconstituting the alternately left samples of the transmitted signal samples and control signals.

    ADAPTIVE RECONSTRUCTION OF THE COLOR CHANNELS OF A COLOR TV SIGNAL

    公开(公告)号:CA1196090A

    公开(公告)日:1985-10-29

    申请号:CA467729

    申请日:1984-11-13

    Applicant: RCA CORP RCA CORP

    Abstract: ADAPTIVE RECONSTRUCTION OF THE COLOR CHANNELS OF A COLOR TV SIGNAL The parent application relates to the removal of aliases aliases from at least a first component signal of a video signal, using one alias-free component of said video signal, by determining from said alias free component the direction of least resolution and averaging said alias containing component in said direction The present invention relates to a method and apparatus for encoding the video signal in a novel manner permitting such alias removal to be readily achieved on decoding. According to the invention, a video signal having at least two components is encoded by periodically sampling at least a first signal component with offset samples, said first signal component having frequency components that can exceed one half the sampling frequency, and sampling a second signal component at a frequency at least about twice the maximum of its highest frequency and about twice the sampling frequency of said first component signal.

    10.
    发明专利
    未知

    公开(公告)号:FR2593988B1

    公开(公告)日:1991-11-15

    申请号:FR8701153

    申请日:1987-01-30

    Applicant: RCA CORP

    Abstract: A progressively scanned video signal is encoded into temporal sum and difference components for transmission. The sum signal is temporally filtered, decimated and time expended to be compatible with interlaced receivers. The difference signal, also temporally filtered, decimated and time expanded, is conveyed via single or separate channels with the sum signal to a progressive scan receiver for reconstitution of the original progressive scan signal. Modified quadrature amplitude modulation is used to convey the sum and difference signals in a common channel.

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