APPARATUS AND METHOD FOR ANALYZING IDENTIFICATION SIGNAL BASED ON PARTIAL CORRELATION

    公开(公告)号:CA2668058A1

    公开(公告)日:2008-05-08

    申请号:CA2668058

    申请日:2007-10-12

    Abstract: Provided is an apparatus and method for analyzing identification (ID) sig nals by converting radio frequency (RF) signals which are transmitted with a n ID signal added thereto by a transmitting part, e.g., a plurality of trans mitters or repeaters, into signals of a desired band; creating ID signals th at are identical to the ID signals added to the RF signals; calculating corr elation values between the converted signals and the created ID signals base d on partial correlation; and extracting channel profile of multi-path signa ls caused by a channel between the transmitting part and the ID signal analy zing apparatus from the correlation value. The technology of the present res earch is applied to broadcasting and communication.

    METODO Y APARATO DE REPETIDOR DE CANAL ACTIVO.

    公开(公告)号:MXPA06013060A

    公开(公告)日:2007-02-14

    申请号:MXPA06013060

    申请日:2004-12-31

    Abstract: Se proporcionan un repetidor de canal activo y un metodo del mismo. El repetidor recibe las senales en un canal y distribuye las senales en el mismo canal mediante convertir las senales RF desde un transmisor principal en las senales de banda base; ecualizandolas en un ecualizador de alto rendimiento, agregando un identificador del repetidor a ellas, modulando las senales de banda base con el identificador del repetidor en las senales RF. El repetidor incluye: un receptor para recibir las senales RF; un demodulador para demodular las senales RF en las senales de banda base, un ecualizador para ecualizar las senales de banda base; un agregador para agregar un identificador del repetidor a las senales de banda base, un modulador para modular las senales de banda base con el identificador del repetidor agregado en el agregador en base senales RF y un transmisor para transmitir las senales RF moduladas en el modulador. La tecnologia de la presente invencion se usa para formar una red de repeticion de canal activo en un sistema de transmision arbitrario incluyendo un sistema de transmision de television digital.

    APPARATUS AND METHOD FOR ESTIMATING INVERSE CHANNEL OF REPEATER'S RECEIVING CHANNEL
    44.
    发明公开
    APPARATUS AND METHOD FOR ESTIMATING INVERSE CHANNEL OF REPEATER'S RECEIVING CHANNEL 审中-公开
    装置和用于估计逆信道的接收信道AN放大器之间

    公开(公告)号:EP2188915A4

    公开(公告)日:2015-11-11

    申请号:EP08753331

    申请日:2008-05-06

    Abstract: Provided is an apparatus and method for estimating inverse channel of a repeater's receiving channel, which ensures stability and causality by generating a time-domain filter coefficient having information on an inverse channel of repeater's receiving channel from a signal transmitted from a main transmitter or another repeater. The apparatus includes: a channel estimator for estimating a channel established by a transmission path from a received signal; an inverse minimum phase filter coefficient generator for generating inverse channel of a minimum phase channel from the estimated channel, and converting the inverse channel of the minimum phase channel into a time-domain filter coefficient; an inverse group delay filter coefficient generator for generating a time-domain filter coefficient by using the estimated channel and the minimum phase channel; and a combiner for generating an inverse channel of a receiving channel in a time domain by combining the filter coefficient and the filter coefficient.

    METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING BROADCASTING-COMMUNICATION DATA
    46.
    发明公开
    METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING BROADCASTING-COMMUNICATION DATA 有权
    方法和设备用于发送/接收广播通信数据

    公开(公告)号:EP2299704A4

    公开(公告)日:2014-03-05

    申请号:EP09755053

    申请日:2009-05-29

    Abstract: A method and apparatus for transmitting/receiving broadcasting-communication data is provided. The apparatus includes: an original signal generator configured to receive the original data and generate baseband original signals; a first modulator configured to receive the baseband additional signals and generate original signals of a predetermined band; an additional signal generator configured to receive the additional data and generate baseband additional signals; a second modulator configured to receive the baseband additional signals and generate additional signals of a predetermined band; an average power controller configured to control an average power of the additional signals of the predetermined band; an inserter configured to insert the additional signals of the predetermined band with a controlled average power to the original signals of the predetermined band to thereby generate mixed signals of a predetermined band; and a transmitter configured to transmit the mixed signals of the predetermined band.

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