Abstract: 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. A demodulation device includes 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.

Abstract: Disclosed is a transmitter that includes a demodulation circuit and a transmitting-side back-end processing circuit. When a TLV packet superimposed on a broadcast wave and transmitted with a variable data length is to be converted to split TLV packets with a fixed data length, the demodulation circuit sets a speed for switching between L and H levels of a clock signal in such a manner that the speed for first data including a packet header to be embedded in a header section of the split TLV packets is twice the speed for data subsequent to the first data. The transmitting-side back-end processing circuit QAM-modulates a signal demodulated by the demodulation circuit for cable broadcasting purposes.

Abstract: 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.

Abstract: 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.

Abstract: 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. A demodulation device includes 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.

Abstract: 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.

Abstract: Disclosed is a transmitter that includes a demodulation circuit and a transmitting-side back-end processing circuit. When a TLV packet superimposed on a broadcast wave and transmitted with a variable data length is to be converted to split TLV packets with a fixed data length, the demodulation circuit sets a speed for switching between L and H levels of a clock signal in such a manner that the speed for first data including a packet header to be embedded in a header section of the split TLV packets is twice the speed for data subsequent to the first data. The transmitting-side back-end processing circuit QAM-modulates a signal demodulated by the demodulation circuit for cable broadcasting purposes.

Abstract: The present technology relates to a reception device, a data processing method, and a transmission/reception system capable of shortening time to output a packet. The reception device receives a transmission signal obtained by processing a multiplexed stream including a plurality of packets, analyzes transmission control information for controlling transmission of the transmission signal, decodes the transmission signal on the basis of an analysis result of the transmission control information, analyzes the multiplexed stream obtained by decoding the transmission signal and sets packet division information for dividing the packets from the multiplexed stream, the packet division information according to at least one of the analysis result of the transmission control information or an analysis result of the multiplexed stream, and divides the multiplexed stream into the packets on the basis of the set packet division information.

Abstract: The present technology relates to a reception device, a data processing method, and a transmission/reception system capable of shortening time to output a packet. The reception device receives a transmission signal obtained by processing a multiplexed stream including a plurality of packets, analyzes transmission control information for controlling transmission of the transmission signal, decodes the transmission signal on the basis of an analysis result of the transmission control information, analyzes the multiplexed stream obtained by decoding the transmission signal and sets packet division information for dividing the packets from the multiplexed stream, the packet division information according to at least one of the analysis result of the transmission control information or an analysis result of the multiplexed stream, and divides the multiplexed stream into the packets on the basis of the set packet division information.

Abstract: 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.

Abstract: The present technology relates to a data processing device and a data processing method that can realize further flexible operation of digital television broadcasting. A data processing device placed in a facility related to broadcasting station and a data processing device placed in a transmitter station exchange data, as transmission data transmitted via a communication line, which is obtained by processing a stream including control information, a component, and variable-length information and adding variable-length information existence information indicating a presence or absence of variable-length information. The present technology can be applied as a transmission system between stations, for example, between a broadcasting station and a transmitter station.

Abstract: 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.

Abstract: The present technology relates to a reception apparatus and a data processing method that enable clock synchronization in a more suitable manner. The reception apparatus receives a digital broadcast signal of an IP transmission method that includes time information and a stream of content. The time information includes a seconds field and a nanoseconds field. The reception apparatus then generates a processing clock synchronized with the time information on the basis of the time information included in the digital broadcast signal, and processes the stream included in the digital broadcast signal on the basis of the processing clock. The present technology can be applied to, for example, television receivers conforming to the IP transmission method.

Abstract: The present technology relates to a signal processing device that enables TLV transmission, a signal processing method, and a program. The signal processing device includes: a demodulation processing unit that performs a demodulation process; a processing unit that performs a demux process; and a data signal line, a clock signal line, a sync signal line, and a valid signal line that are provided between the demodulation processing unit and the processing unit. A variable-length packet is transmitted between the demodulation processing unit and the processing unit through the data signal line, the clock signal line, the sync signal line, and the valid signal line. The variable-length packet is an Internet Protocol (IP) packet. The present technology can be applied to receivers that receive and process TLV streams.

Abstract: Communication reception that enables reception of a packet which may not contain an error without invalidating the same is disclosed. In one example, an information analyzing unit analyzes a data string and frame/slot information, and supplies TMCC information, slot header information, and data length information to a packet length indicating unit and a packet dividing unit. The packet length indicating unit defines the packet length in advance, and indicates the defined packet length to the packet dividing unit. The packet dividing unit performs packet division on the basis of the packet length obtained from the TMCC information, the slot header information, the data length information and the like from the information analyzing unit, and the packet length defined by the packet length indicating unit.

Abstract: The present technology relates to a data processing device and a data processing method that can realize further flexible operation of digital television broadcasting. A data processing device placed in a facility related to broadcasting station and a data processing device placed in a transmitter station exchange data, as transmission data transmitted via a communication line, which is obtained by processing a stream including control information, a component, and variable-length information and adding variable-length information existence information indicating a presence or absence of variable-length information. The present technology can be applied as a transmission system between stations, for example, between a broadcasting station and a transmitter station.

Abstract: 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.

Abstract: The present technology relates to a reception device, a receiving method, and a program capable of improving a reception state. A delay wave by multipath is estimated on the basis of sensor information detected by a sensor unit, a replica of the delay wave is generated by a sum of products of a coefficient for each delay wave and a signal of a reception wave according to delay time on the basis of the estimated delay wave by the multipath, and the generated replica of the delay wave is subtracted from the signal of the reception wave, thereby removing the delay wave from the signal of the reception wave. The present technology may be applied to a receiver which receives a broadcast wave.

Abstract: The present technology relates to a data processing apparatus and a data processing method that are able to secure good communication quality in data transmission using an LDPC code. One symbol is mapped to one of 16 signal points prescribed in 16APSK, with code bits of four bits of an LDPC code having a code length of 16200 bits and a code rate of 7/15 as one symbol. 16 signal points prescribed in 16APSK are four signal points on an inner circle and 12 signal points on an outer circle, and a radius ratio of the inner circle and the outer circle is 5.25. The present technology may be applied to, for example, a case of performing data transmission using an LDPC code.