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公开(公告)号：US20220078508A1
公开(公告)日：2022-03-10
申请号：US17309660
申请日：2019-09-03
发明人： SATOSHI OKADA , KENICHI KOBAYASHI
IPC分类号： H04N21/438 , H04L1/00
摘要： In a receiver that receives signals of the ATSC 3.0 standard, a terrestrial digital broadcasting signal is extracted from the received signals. A reception unit performs reception processing of sequentially receiving a predetermined number of reception target frames, each of which is a transmission unit of the terrestrial digital broadcasting signal. A reception interval acquisition unit obtains, as a reception interval, an interval between respective reception start timings of the predetermined number of reception target frames. A frame length acquisition unit acquires a frame length of each of the reception target frames on the basis of the reception target frames. A reception control unit stops the reception processing for a period of a length of a difference between the reception interval and the frame length.
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公开(公告)号：US20210168429A1
公开(公告)日：2021-06-03
申请号：US17250469
申请日：2019-05-15
发明人： SATOSHI OKADA , RYOSUKE SUDA
IPC分类号： H04N21/426 , H04N21/438
摘要： Channel bonding is realized in a receiving apparatus that receives terrestrial digital broadcasting compliant with an ATSC 3.0 standard. A first receiving circuit receives a first frame obtained by encoding first packets within a stream containing the first packets and second packets via a first frequency channel. A second receiving circuit receives a second frame obtained by encoding the second packets via a second frequency channel different from the first frequency channel. A first integrated circuit decodes the first frame and acquires the first packets. The second integrated circuit performs processing for decoding the second frame and acquiring the second packets and processing for bonding the first packets and the second packets together and reconstructing the stream.
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公开(公告)号：US20210289257A1
公开(公告)日：2021-09-16
申请号：US17250470
申请日：2019-05-15
发明人： SATOSHI OKADA , YUTAKA NAKADA , RYOSUKE SUDA
IPC分类号： H04N21/438 , H04B1/16 , H04N21/4385
摘要： Channel bonding is realized in a receiving apparatus that receives terrestrial digital broadcasting compliant with an ATSC 3.0 Standard. A receiving section selects any one of a plurality of frequency channels as a bonding source channel and receives a frame from the bonding source channel. A control section performs processing for obtaining one frequency channel in which packets are to be bonded with the bonding source channel among the plurality of frequency channel as a bonding destination channel on the basis of the frame and processing for controlling the receiving section to newly receive a frame from the bonding destination channel. A decoding section decodes the frame and acquires the packets. A bonding section bonds together the packets corresponding to the bonding source channel and the packets corresponding to the bonding destination channel.
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公开(公告)号：US20210036793A1
公开(公告)日：2021-02-04
申请号：US16964194
申请日：2018-12-21
发明人： SATOSHI OKADA , KENICHI KOBAYASHI
摘要： To provide a demodulation circuit, a processing circuit, a processing method, and a processing device that are capable of implementing more prompt acquisition of alert information. Provided is a demodulation circuit including a demodulation unit configured to demodulate a broadcast signal received by a reception circuit that receives the broadcast signal, a determination unit configured to determine whether or not acquisition of alert information included in the demodulated broadcast signal is necessary according to a set operation mode, on the basis of first alert notification information indicating an update state of the alert information included in the demodulated broadcast signal, and an output processing unit configured to output second alert notification information corresponding to the operation mode from a predetermined terminal to which a processing circuit having a function to acquire the alert information is electrically connected, in a case where acquisition of the alert information is determined to be necessary.
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公开(公告)号：US20200351546A1
公开(公告)日：2020-11-05
申请号：US16960437
申请日：2018-10-15
IPC分类号： H04N21/438 , H04N21/43 , H04N21/434 , H04N21/44 , H04L12/54 , H04L29/06 , H04L25/02
摘要： A signal processing device includes an interface, which includes a demodulation processing unit that executes demodulation processing, a processing unit that executes demux processing or the like, and a sync signal line, a valid signal line, a clock signal line, and a data signal line disposed between the demodulation processing unit and the processing unit, that transmits data signals as two-bit parallel transmission.
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公开(公告)号：US20210344353A1
公开(公告)日：2021-11-04
申请号：US17250427
申请日：2019-07-23
发明人： YUTAKA NAKADA , SATOSHI OKADA
摘要： There is provided a decoding circuit including; a first decoding unit that decodes a first signal from a multiplexed signal in which the first signal and a second signal are multiplexed in an LDM (Layered Division Multiplexing) system; and a second decoding unit that decodes the second signal from the multiplexed signal using the decoding result of the decoded first signal, wherein the second signal is selectively decoded based on noise information related to a reception state of the multiplexed signal.
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公开(公告)号：US20210250642A1
公开(公告)日：2021-08-12
申请号：US17250147
申请日：2019-04-08
发明人： SATOSHI OKADA , RYOSUKE SUDA
IPC分类号： H04N21/438 , H04L1/00
摘要： [Problem] Provided is a demodulation circuit, a processing method, and a processing device which are capable of improving robustness in demodulating a broadcast signal. [Solution] Provided is a demodulation circuit including a demodulation unit that demodulates a broadcast signal received by a reception circuit that receives the broadcast signal, an error correction processing unit that performs an error correction on a first packet obtained by demodulation, and a packet processing unit that extracts a second packet from the first packet on which an error correction has been performed, in which when an error correction is unsuccessfully performed on the first packet that was to be processed immediately before, the packet processing unit extracts the second packet from the first packet to be processed based on pointer information included in the first packet to be processed.
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