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公开(公告)号：US11368748B2
公开(公告)日：2022-06-21
申请号：US16618922
申请日：2018-05-31
IPC分类号： H04N21/438 , H04N21/43 , H04N21/643 , H04N21/854
摘要： The present technology relates to a demodulation device, a processing device, a reception device, and a data processing method for more flexibly coping with change in transmission method.
Provided is a demodulation device including a demodulation unit configured to demodulate a first transmission packet obtained from a broadcast signal, and an output unit configured to output a divided packet via a predetermined interface, the divided packet being obtained by dividing the first transmission packet that is a variable-length packet used in a first transmission method into a packet length according to a second transmission packet that is a fixed-length packet used in a second transmission method and arranging the first transmission packet in a payload, and adding a header including information for restoring the first transmission packet to the payload. The present technology can be applied to, for example, a demodulation IC incorporated in a television receiver or a set top box.-
公开(公告)号：US11323767B2
公开(公告)日：2022-05-03
申请号：US16618922
申请日：2018-05-31
IPC分类号： H04N21/438 , H04N21/43 , H04N21/643 , H04N21/854
摘要： The present technology relates to a demodulation device, a processing device, a reception device, and a data processing method for more flexibly coping with change in transmission method.
Provided is a demodulation device including a demodulation unit configured to demodulate a first transmission packet obtained from a broadcast signal, and an output unit configured to output a divided packet via a predetermined interface, the divided packet being obtained by dividing the first transmission packet that is a variable-length packet used in a first transmission method into a packet length according to a second transmission packet that is a fixed-length packet used in a second transmission method and arranging the first transmission packet in a payload, and adding a header including information for restoring the first transmission packet to the payload. The present technology can be applied to, for example, a demodulation IC incorporated in a television receiver or a set top box.-
公开(公告)号：US10924196B2
公开(公告)日：2021-02-16
申请号：US16332121
申请日：2017-10-26
发明人： Kazuyuki Takahashi
IPC分类号： H03K9/00 , H04H40/27 , H04H20/59 , H04B1/16 , H04N21/41 , H04N21/442 , H04H60/13 , H04N21/426 , H04H60/43 , H04N21/438 , H04N21/443 , H04N21/6543 , H04N21/81 , H04W4/90
摘要： The present technology relates to a reception apparatus, a reception method, a transmission apparatus, and a transmission method permitting provision of an emergency warning service more suited to actual operation.
Provided is a reception apparatus including a reception section and a demodulation section. The reception section receives a physical layer frame transported as a broadcast signal on the basis of monitoring information that is included in upper layer signalling, signalling in a layer higher than a physical layer, and that is used to monitor a specific service. The demodulation section demodulates physical layer signalling acquired from the physical layer frame and monitors whether emergency warning information has been transported on the basis of emergency warning notice information acquired as a result of the demodulation. In the case where the emergency warning notice information indicates that the emergency warning information has been transported, the reception apparatus starts up automatically. The present technology is applicable, for example, to a transport system for transporting a physical layer frame compliant with the DVB-T2 standard.-
公开(公告)号：US10812207B2
公开(公告)日：2020-10-20
申请号：US16482390
申请日：2018-02-28
发明人： Satoshi Okada , Kazuyuki Takahashi , Takeshi Ohno
摘要： A reception apparatus includes a demodulation circuit configured to demodulate packets obtained with respect to each of multiple PLPs included in a broadcast signal; and a processing circuit configured to process the packets demodulated by the demodulation circuit. The demodulation circuit and the processing circuit are connected with each other via a single interface or interfaces fewer than the number of the PLPs. The demodulation circuit adds identification information to a specific packet among the packets obtained with respect to each of the PLP, the identification information identifying the PLP to which each of the packets belongs. The processing circuit identifies the PLP to which belongs each of the packets input from the demodulation circuit via the single interface or the interfaces fewer than the number of the PLPs, based on the identification information obtained from the specific packet.
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公开(公告)号：US10917277B2
公开(公告)日：2021-02-09
申请号：US16099769
申请日：2017-06-23
摘要： The present technology relates to a transmission device, a transmission method, a reception device, and a reception method for sufficiently securing an information amount of additional information of a physical layer.
The transmission device generates and transmits an OFDM signal in which additional information of a physical layer is allocated to additional carriers in each of groups, the groups being obtained by grouping the additional carriers to be used for transmission of the additional information, of carriers of the OFDM signal of one frame, into the groups of the number of groups according to a DFT size of when IDFT of the OFDM signal is performed. The reception device receives the OFDM signal, and acquires the additional information corresponding to the number of groups according to the DFT size from the OFDM signal. The present technology can be applied to, for example, transmission and reception of the OFDM signal.-
公开(公告)号：US10812844B2
公开(公告)日：2020-10-20
申请号：US16480365
申请日：2018-02-21
发明人： Kazuyuki Takahashi
IPC分类号： H04N7/173 , H04N21/2385 , H04B7/026 , H04N21/2362 , H04N21/434 , H04N21/61 , H04N21/845
摘要： The present technology relates to a transmitting apparatus, a receiving apparatus, and a data processing method each of which enables channel bonding to be more reliably performed.There is provided a transmitting apparatus generating physical layer signaling including first identification information with which a group of frequency bands constituting channel bonding is identified, and second identification information with which the frequency band belonging to the group is identified; and transmitting a broadcasting signal which includes the physical layer signaling and is changed in frequency band thereof by a relay apparatus by utilizing a predetermined frequency band. The present technology, for example, can be applied to a broadcasting system utilizing channel bonding.
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公开(公告)号：US11973853B2
公开(公告)日：2024-04-30
申请号：US17630610
申请日：2020-05-11
发明人： Kazuyuki Takahashi
摘要： A receiving apparatus includes a packet type determination unit that determines whether or not a TLV packet includes a compressed IP packet, a context information determination unit that determines a context identifier and a context identification header type of the TLV packet determined to include the compressed IP packet, a CID-header storage unit that stores a source IP address assigned to the context identifier, a fixed header information storage unit that stores fixed header information in conformance with an operation specification of a broadcast wave, and a header restoring unit that generates a restored IP packet by decompressing the compressed data in accordance with the TLV packet determined to include the compressed IP packet, the source IP address acquired from the CID-header information storage unit on the basis of the context identifier, and the fixed header information acquired from the fixed header information storage unit.
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公开(公告)号：US10951336B2
公开(公告)日：2021-03-16
申请号：US16307718
申请日：2017-08-17
IPC分类号： H04H20/95 , H04B17/00 , H04N21/854 , H04N21/2343 , H04N21/61 , H04H60/25 , H04N21/643 , H04H20/74 , H04N21/2381 , H04N21/2383 , H04N21/438
摘要： The present technology relates to a data processing apparatus and a data processing method capable of achieving higher convenience in a case where a plurality of transmission formats is available in a transmission frame. The data processing apparatus installed in a transmission-side facility processes a transmission frame transmitted as a broadcast signal and adds identification information for identifying the transmission format of the transmission frame, while a data processing apparatus installed in a reception-side facility processes a transmission frame in which a transmission frame has been identified, on the basis of identification information added to the transmission frame transmitted as the broadcast signal. The present technology can be applied as a method of a test stream, for example.
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公开(公告)号：US10812872B2
公开(公告)日：2020-10-20
申请号：US16300360
申请日：2017-06-16
IPC分类号： H04N21/81 , H04H20/59 , H04H60/13 , H04H60/42 , H04N21/2362 , H04N21/434 , H04H20/28 , G08B27/00
摘要： The present technology relates to a transmitting device, a transmitting method, a receiving device, and a receiving method, which are capable of improving immediacy and flexibility of an alert.A transmitting device generates transmission data in which an index associated with predetermined process-related information in a relevant table in which process-related information related to an output process of outputting an alert on a receiving side is registered in association with an index is included in data of a physical layer, the relevant table being included in data of a higher layer higher than the physical layer and supplied, and transmits the transmission data. The receiving device obtains a relevant table, receives transmission data, and acquires an index included in data of a physical layer from the transmission data. Then, the receiving device executes an output process corresponding to process-related information associated with the index included in the data of the physical layer in the relevant table. For example, the present technology can be applied in a case where an emergency alert is provided in television broadcasting.
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公开(公告)号：US11889145B2
公开(公告)日：2024-01-30
申请号：US16482816
申请日：2018-02-28
发明人： Kazuyuki Takahashi , Satoshi Okada , Takeshi Ohno
IPC分类号： H04N21/434 , H04N21/236 , H04N21/2381 , H04N21/438
CPC分类号： H04N21/4343 , H04N21/2381 , H04N21/23605 , H04N21/4381
摘要： This technology relates to a transmission apparatus, a reception apparatus, and a data processing method for easily implementing circuits on the receiving side.
There is provided a transmission apparatus including a processing section configured to process a stream with respect to each of multiple PLPs included in a broadcast signal, the stream being constituted by packets, the processing section further causing a header of each of the packets to include mapping information mapped to identification information identifying the PLP to which each of the packets belongs. This technology may be applied to data transmission methods such as the IP transmission method or the MPEG2-TS method, for example.
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