Abstract: The present technology relates to a reception apparatus, a reception method, and a program capable of improving performance in diversity. The reception apparatus includes a plurality of demodulation units configured to demodulate a supplied branch and generate a symbol and a synthesis unit configured to synthesize the symbol demodulated by the plurality of demodulation units, in which the synthesis unit sets a predetermined time from arrival time of a first-arriving symbol as a search range, and synthesizes a symbol that arrives within the search range and the first-arriving symbol. The present technology can be applied to a mobile terminal apparatus that receives television broadcasting or the like with diversity system.

Abstract: The present disclosure relates to a receiving device, a receiving method, and a program that can reduce power consumption. A Viterbi decoding unit performs Viterbi decoding on a likelihood as a processing target, a byte de-interleaver delays a part of a decoding result of Viterbi decoding, and an RS decoding unit performs RS decoding on the decoding result after delaying by the byte de-interleaver. A likelihood converting unit controls decoding of the likelihood to improve reliability of the decoding result. Then, when all of a predetermined number of decoding results by the RS decoding unit are succeeded or failed, the decode stop determination unit determines to stop subsequent decoding on the likelihood as a processing target. The present technology may be applied to, for example, a receiving device that receives digital terrestrial broadcasting compatible with the ISDB-T standard, or the like.

Abstract: There is provided a communication device that performs communication through a bus, including: a transmitting and receiving unit configured to transmit and receive a signal to and from at least one other communication device; and an error detection unit configured to, when the transmitting and receiving unit transmits and receives the signal, detect whether an error has occurred in the signal using a specific error detection method according to transmission and reception of the signal. The signal is transmitted and received between a first communication device, which is the communication device having a communication initiative through the bus, and a second communication device, which is the communication device configured to perform communication under control of the first communication device.

Abstract: To transmit and receive phase detection image data together with visible image data through a standard of a DisplayPort (trademark). Information of phase detection pixels in lines L1 to L15 in which there are phase detection pixels set onto an effective pixel region 71 is arranged in a horizontal blanking region 73 as phase detection image data packet 83. The information of the phase detection image data packet is set onto a vertical blanking region 72 as phase detection image information packet 82. Thus, the phase detection image data is transmitted and received together with the visible image data generated by the effective pixel region 71. The present technology can be applied to the DisplayPort.

Abstract: The present technique relates to a data processing device and a data processing method, capable of promptly issuing an emergency alarm under the DVB-C2. A transmission device generates L1 signalling including an emergency alarm signal related to an emergency alarm, in L1 signalling Part 2 under the digital video broadcasting (DVB)-C2. A reception device processes the L1 signalling obtained from data transmitted from the transmission device. The present technique can be applied, under the DVB-C2, for example, to a case where an emergency alarm is issued.

Abstract: The present technology relates to a reception apparatus, a reception method, and a program capable of improving performance in diversity. The reception apparatus includes a plurality of demodulation units configured to demodulate a supplied branch and generate a symbol, and a synthesis unit configured to synthesize the symbol demodulated by the plurality of demodulation units, to which the synthesis unit sets a predetermined time from arrival time of a first-arriving symbol as a search range, and synthesizes a symbol that arrives within the search range and the first-arriving symbol. The present technology can be applied to a mobile terminal apparatus that receives television broadcasting or the like with diversity system.

Abstract: The present invention relates to a data processor and data processing method that facilitate properly processing a stream. An input stream is formed by a plurality of packets . Each of the packets of the input stream is distributed to one of a plurality of channels and null packets (NP) are distributed to the other channels. This divides the input stream into divided streams on a plurality of channels including the packets of the input stream at a predetermined density. The present invention can be used, for example, for a channel bonding (CB) technique in which an input stream is divided into a plurality of channels and transmitted.

Abstract: The present technology relates to a data processing device and a data processing method capable of appropriately processing a stream. NPs included in a division stream of a predetermined channel acquired by dividing an input stream configured by a plurality of packets into division streams of a plurality of channels are eliminated, and a NP-eliminated stream including DNP representing the number of eliminated NPs is generated. Then, a stream including the NP-eliminated stream and signaling as a size identifier representing a size of the DNP or a stream including the NP-eliminated stream and a buffer capacity of a buffer storing the NP-eliminated stream and signaling as read start time from the buffer so as to generate a NP-inserted stream acquired by inserting NPs corresponding to a number represented by the DNP into the NP-eliminated stream is generated.

Abstract: An apparatus according to an embodiment of the present disclosure includes a plurality of target circuits, the number of the target circuits being more than a required number of the target circuits; a characteristic adjustment unit configured to adjust characteristics of the target circuits; and a control unit configured to control a state of the target circuits between a used state and an unused state. The control unit controls the required number of the target circuits to be in the used state and controls the rest of the target circuits to be in the unused state. The characteristic adjustment unit adjusts the characteristics with respect to the target circuits in the unused state.

Abstract: The present technique relates to a receiving device, a receiving method, and a program for realizing a prompt start of data demodulation. A receiving device of one aspect of the present technique includes: a detecting unit that detects a first preamble signal from a frame signal having a frame structure that contains the first preamble signal indicating a frame partition, a second preamble signal containing control information to be used in processing a data signal, and the data signal, the second preamble signal being transmitted after the first preamble signal; an accumulating unit that accumulates the second preamble signal when the first preamble signal is detected; and a processing unit that processes the data signal based on the control information contained in the second preamble signal accumulated in the accumulating unit, the data signal being contained in the same frame as the second preamble signal accumulated in the accumulating unit.

Abstract: The present technique relates to a transmission device, a transmission method, a reception device, a reception method, and a program capable of reducing interference to an adjacent channel in a case where connected-transmission is performed. A transmission device according to an aspect of the present technique includes a signal generating unit configured to generate a plurality of signals having a predetermined frequency bandwidth, a power adjusting unit configured to adjust power of signals so that the power of a signal transmitted using a frequency band close to an end of a channel is less than the power of the signal transmitted using a frequency band close to a center of the channel, and a transmission unit configured to use the channel to transmit, in a connected manner, the signals of which powers have been adjusted. The present technique can be applied to a transmission device for performing connected-transmission.

Abstract: There is provided a reception device including a reception unit configured to receive an OFDM (Orthogonal Frequency Division Multiplexing) signal, an acquisition unit configured to acquire a transmission parameter concerning the OFDM signal contained in the OFDM signal, and a selection unit configured to select a demodulation mode of the OFDM signal in accordance with the acquired transmission parameter.

Abstract: A data processing device and a data processing method that can readily process control data having its PAPR improved. In a transmission device, a padder pads control data necessary for demodulation with zeros as dummy data, and a scrambler scrambles the padded control data (post-padding control data). A replacement unit replaces scrambled dummy data in the scrambled post-padding control data with the dummy data, and a BCH encoder and an LDPC encoder perform BCH encoding and LDPC encoding as error correction encoding on the replacement data obtained through the replacement. A shortening unit performs shortening by deleting the dummy data contained in the LDPC code and puncturing the parity bits of the LDPC code. The device can be applied in cases where control data is subjected to error correction encoding and is then transmitted, for example.

Abstract: An apparatus according to an embodiment of the present disclosure includes a plurality of target circuits, the number of the target circuits being more than a required number of the target circuits; a characteristic adjustment unit configured to adjust characteristics of the target circuits; and a control unit configured to control a state of the target circuits between a used state and an unused state. The control unit controls the required number of the target circuits to be in the used state and controls the rest of the target circuits to be in the unused state. The characteristic adjustment unit adjusts the characteristics with respect to the target circuits in the unused state.

Abstract: This technique relates to a receiving device, a receiving method, a program, and a receiving system that are designed to reduce circuit size. A receiving device of one aspect of this technique includes: a de-mapping unit that receives a symbol signal generated by performing mapping on a first branch signal and a second branch signal indicating information about the same transmission target, and performs de-mapping on the symbol signal by a hard decision; a selecting unit that selects, in accordance with a reception state, one signal from the first branch signal and the second branch signal obtained through the de-mapping; and a decoding unit that decodes the information about the transmission target based on the one signal. This technique can be applied to receivers that receive OFDM signals compliant with DVB-C2.

Abstract: A data processing device and a data processing method capable of improving the resistance to error of data. An LDPC encoder performs encoding using an LDPC code having a code length of 4320 bits and a coded rate of one of four types including ½, 7/12, ?, ¾. A parity check matrix H of the LDPC code is configured by arranging elements of 1's of an information matrix, which are determined based on a parity check matrix initial value table of the parity check matrix H representing positions of elements of 1's of the information matrix corresponding to an information length according to the code length and the coded rate for every 72 columns, in a column direction at a period of 72 columns. The parity check matrix initial value table, for example, is used for digital broadcasting for mobile terminals.

Abstract: A data processing device and a data processing method capable of improving resistance to errors. Code bits of an LDPC code with a code length N of 16200 bits is written to, for example, eight storage units. When the code bits are stored in the storage units, a process of changing the storage start position of the code bits for each storage unit is performed as a sorting process of sorting the bits of the LDPC code such that a plurality of code bits corresponding to 1s in an arbitrary row of the parity check matrix of the LDPC code are not included in a single symbol which is read from the storage units. The present technology can be applied to, for example, the transmission of the LDPC code.

Abstract: There is provided a reception device which receives signals compliant with a DVB-T2 standard which possibly includes a plurality of different profiles, and demodulates only a signal having a profile first received or only a signal having a predetermined profile, of the received signals.

Abstract: There is provided a reception device which receives signals compliant with a DVB-T2 standard which possibly includes a plurality of different profiles and demodulates a signal having a predetermined profile, of the received signals, and demodulates a signal having a different profile when it is clear that the signal having the different profile is included.

Abstract: There is provided a receiving device including a receiving unit configured to receive encoded data encoded by one or more codes, a first decoding unit configured to decode the encoded data received by the receiving unit, a first delay unit configured to delay a part of decoding results obtained by the first decoding unit, and a reliability increasing unit configured to control decoding of the encoded data to increase reliability of the decoding results using a decoding result that is not delayed by the first delay unit among the decoding results after delay by the first delay unit.