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226 条记录 (耗时 0.037 秒)

    Time-alignment measurement for hybrid HD radio™ technology
    1.
    发明授权
    Time-alignment measurement for hybrid HD radio™ technology 有权

    公开(公告)号：US11190334B2

    公开(公告)日：2021-11-30

    申请号：US16880070

    申请日：2020-05-21

    申请人： Ibiquity Digital Corporation

    发明人： Brian W. Kroeger ,  Paul J. Peyla

    IPC分类号： H04L12/18 ,  H04H40/18 ,  H04H40/00 ,  H04H60/00 ,  H04H20/18 ,  H04L7/00 ,  H04H20/30 ,  H04H60/12

    摘要： A method for processing audio signals in a radio transmitter, includes: receiving an analog audio sample stream and a digital audio sample stream; determining offsets in time between the analog audio stream and the digital audio stream using a normalized cross-correlation of audio envelopes of the analog audio sample stream and the digital audio sample stream; filtering the determined offsets in time to produce filtered offset values; determining an alignment slip adjustment value as a function of the filtered offset values; aligning the analog audio sample stream and the digital audio sample stream using the determined alignment slip adjustment value; and generating a hybrid radio signal for broadcast that includes time-aligned analog audio and digital audio.

    Terminal device, communication method, and integrated circuit
    3.
    发明授权
    Terminal device, communication method, and integrated circuit 有权

    公开(公告)号：US10219267B2

    公开(公告)日：2019-02-26

    申请号：US15737344

    申请日：2016-06-15

    申请人： Sharp Kabushiki Kaisha

    发明人： Shoichi Suzuki ,  Tatsushi Aiba

    IPC分类号： H04W72/04 ,  H04H20/30 ,  H04H40/18 ,  H04W72/00 ,  H04W72/12 ,  H04W52/02 ,  H04W76/28

    摘要： A terminal device monitors an MPDCCH in a search space, and performs a DRX functionality for controlling monitoring of the MPDCCH. The search space including a first MPDCCH candidate and a second MPDCCH candidate, a beginning OFDM symbol in the first MPDCCH candidate being identical to a beginning OFDM symbol in the second MPDCCH candidate, and a repetition level of the first MPDCCH candidate being lower than a repetition level of the second MPDCCH candidate. When the MPDCCH detected in the first MPDCCH candidate indicates initial transmission, a drx-InactivityTimer in a last subframe in the second MPDCCH candidate is started or restarted.

    Digital broadcasting receiver and method for controlling the same
    4.
    发明授权
    Digital broadcasting receiver and method for controlling the same 有权

    公开(公告)号：US10136169B2

    公开(公告)日：2018-11-20

    申请号：US15666524

    申请日：2017-08-01

    申请人： LG ELECTRONICS INC.

    发明人： Sang Kil Park ,  In Hwan Choi ,  Jae Hyung Song ,  Chul Soo Lee

    IPC分类号： H04N21/236 ,  H04N21/2347 ,  H04N21/235 ,  H04N21/2362 ,  H04N21/2383 ,  H04N21/266 ,  H04N21/61 ,  H04N21/81 ,  H04H20/30 ,  H04H20/55 ,  H04H20/57 ,  H04L9/30

    摘要： A method of processing broadcast data includes: performing RS encoding and CRC encoding on mobile service data to generate an RS frame belonging to an ensemble including a signaling information table including access information of the mobile service data and identification information for identifying a stream where keys to decrypt the mobile service data are obtained; mapping a portion of data in the RS frame to a group including known data sequences, FIC data, and TPC data, wherein the FIC data includes information for rapid mobile service acquisition, and the TPC data includes FIC version information for indicating an update of the FIC data; and transmitting a broadcast signal including the group. The group further includes data blocks. First, fourth, fifth and sixth known data sequences are inserted into third, fifth, sixth and seventh data blocks, respectively. Second and third known data sequences are inserted into a fourth data block.

    Methods and systems for blending between analog and digital broadcast signals
    10.
    发明授权
    Methods and systems for blending between analog and digital broadcast signals 有权
    模拟和数字广播信号混合的方法和系统

    公开(公告)号：US09312972B2

    公开(公告)日：2016-04-12

    申请号：US13906607

    申请日：2013-05-31

    申请人： Silicon Laboratories Inc.

    发明人： Javier Elenes

    IPC分类号： H04H20/22 ,  H04H20/88 ,  H04H20/30 ,  H04H40/81

    CPC分类号： H04H20/88 ,  H04H20/22 ,  H04H20/30 ,  H04H40/81

    摘要： Systems and methods are disclosed that may be implemented to process a received RF spectrum that includes both analog modulated and digitally modulated RF signals to blend between a digital demodulated signal and an analog demodulated signal obtained from the received RF spectrum prior to performing one or more signal quality mitigation operations on the blended signal (e.g., such as stereo blend, hi-cut, etc.). In one embodiment, the digital demodulated signal and the analog demodulated signal may include at least some of the same information, e.g., such as information from simulcast digital and analog channels that are obtained from the same received RF spectrum.

    摘要翻译： 公开了可以实施的系统和方法来处理包括模拟调制和数字调制的RF信号的接收RF频谱，以在数字解调信号和从所接收的RF频谱获得的模拟解调信号之前混合，然后再执行一个或多个信号 混合信号的质量降低操作（例如立体声混合，高切等）。 在一个实施例中，数字解调信号和模拟解调信号可以包括相同的信息中的至少一些，例如，从相同接收的RF频谱获得的来自联播数字和模拟信道的信息。