Abstract: The present technology relates to a transmission device, a transmission method, a reception device, and a reception method that can improve transmission efficiency. An encoded signal is generated based on realtime data indicated by a waveform L using a predetermined fixed bit rate as a maximum code amount Sx and the encoded signal into which non-realtime data with an insufficient code amount is inserted is transmitted at the fixed bit rate, as indicated by a range Z12, when a code amount of the generated encoded signal is insufficient for the maximum code amount Sx. The present technology can be applied to broadcasting communication.

Abstract: A configuration is provided for firmly fixing a transmitting and receiving unit for IVUS and a transmitting and receiving unit for OCT in a probe of an imaging apparatus for diagnosis in which space saving is achieved. The probe includes a cylindrical housing in which an ultrasonic wave transmitting and receiving unit is arranged on a distal side and a light transmitting and receiving unit is arranged on a proximal side. The ultrasonic wave transmitting and receiving unit and the light transmitting and receiving unit being fixed to the cylindrical housing in a state where a base of the ultrasonic wave transmitting and receiving unit and a base portion of the ball lens of the light transmitting and receiving unit are embedded in an adhesive agent.

Abstract: The present technology relates to a transmission apparatus, a transmission method, a reception apparatus, and a reception method that enable channel selection information and time information to be transmitted effectively. A transmission apparatus acquires channel selection information for selecting a service and time information used for synchronizations on a transmission side and a reception side, generates, as a physical layer frame constituted of a preamble and a data portion, the physical layer frame in which specific information including at least one of the channel selection information and the time information is arranged at a head of the data portion right after the preamble, and transmits the physical layer frame as digital broadcast signals. The present technology is applicable to IP packet broadcasting, for example.

Abstract: The present technology relates to a transmission apparatus, a reception apparatus, and a data processing method capable of efficiently transmitting time information with high accuracy. The transmission apparatus generates a physical layer frame including the time information and transmits the physical layer frame. The reception apparatus receives the physical layer frame from the transmission apparatus and performs predetermined processing on the basis of the time information included in the physical layer frame. Time information indicating a certain time is included at a head of the physical layer frame. The present technology can be applied to digital television broadcasting using the IP system.

Abstract: 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.

Abstract: 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.

Abstract: The present technology relates to a transmitting apparatus, a transmitting method, a receiving apparatus, and a receiving method that facilitate tuning setting. A transmitting apparatus generates and transmits transmission data including an index in data of a physical layer, the index being associated with predetermined processing-related information in a relation table in which processing-related information related to setting processing of tuning on a receiving side is registered in association with an index representing a region to be subjected to the setting processing corresponding to the processing-related information and provided as being included in data of an upper layer higher than the physical layer. A receiving apparatus acquires the relation table, while receiving the transmission data, and acquires the index included in the data of the physical layer from the transmission data.

Abstract: The present technology relates to a reception device, a transmission device, and a data processing method with which it becomes possible to operate digital television broadcasting more flexibly. A reception device receives a broadcast signal transmitted by frequency division multiplexing (FDM) and processes, on the basis of control information existence information that is information included in first control information, which is acquired from the broadcast signal and is control information in a physical layer, and that indicates existence/non-existence of second control information that is control information in an upper layer of the physical layer, the second control information transmitted in each hierarchy. The present technology can be applied, for example, to a receiver that can receive digital television broadcasting.

Abstract: The present technology relates to a data processing apparatus and a data processing method that enable correct clock synchronization by use of clock information. The data processing apparatus receives a digital broadcast signal so as to process content included in the digital broadcast signal and clock information also included therein for use in presentation synchronization on the content and sends via a transmission path the processed content and clock information to another data processing apparatus that presents the received content. On the other hand, the another data processing apparatus receives via the transmission path the content and clock information sent from the data processing apparatus so as to process presentation synchronization on the received content on the basis of the received clock information. The present technology is applicable to data processing apparatuses configured to process content, for example.

Abstract: The present technology relates to a receiving device, a transmitting device, and a data processing method, in which seamless reproduction can be performed at the time of switching a broadcast signal. A receiving device receives a plurality of broadcast signals, and selects a broadcast signal of a target from the plurality of broadcast signals, on the basis of a result of processing with respect to the broadcast signal, and thus, it is possible to perform seamless reproduction at the time of switching the broadcast signal. The present technology, for example, can be applied to a receiver which is capable of receiving digital television broadcast.

Abstract: Achieving an imaging apparatus capable of performing both photographing of visible light and photographing of invisible light with a normal solid-state imaging element used for visible light photographing. An imaging apparatus including: a solid-state imaging element having a plurality of pixels two-dimensionally arrayed on an imaging surface; a light shielding unit that shields an invisible light imaging region of the solid-state imaging element in a space above the imaging surface of the solid-state imaging element; a first optical system that allows light corresponding to visible light contained in external light to be incident on the visible light imaging region of the solid-state imaging element; and a second optical system that allows light corresponding to invisible light contained in external light to be incident on an invisible light imaging region covered by the light shielding unit.

Abstract: The present technology relates to a transmission apparatus, a transmission method, a reception apparatus, and a reception method that enable channel selection information and time information to be transmitted effectively. A transmission apparatus acquires channel selection information for selecting a service and time information used for synchronizations on a transmission side and a reception side, generates, as a physical layer frame constituted of a preamble and a data portion, the physical layer frame in which specific information including at least one of the channel selection information and the time information is arranged at a head of the data portion right after the preamble, and transmits the physical layer frame as digital broadcast signals. The present technology is applicable to IP packet broadcasting, for example.

Abstract: A method for manufacturing a heat exchanger includes preparing heat exchange tubes by using an aluminum extrudate made of an alloy containing Mn (0.1 to 0.3 mass %), and Cu (0.4 to 0.5 mass %), the balance being Al and unavoidable impurities; preparing fins by using an aluminum bare material made of an alloy containing Mn (1.0 to 1.5 mass %) and Zn (1.2 to 1.8 mass %), the balance being Al and unavoidable impurities; causing Zn, Si, and flux powders to adhere to the outer surfaces of the heat exchange tubes such that the Zn powder adhesion amount becomes 2 to 3 g/m2, the Si powder adhesion amount becomes 3 to 6 g/m2, and the flux powder adhesion amount becomes 6 to 24 g/m2; and brazing the heat exchange tubes and the fins together by utilizing the Si powder and the flux powder adhered to the outer surfaces of the heat exchange tubes.

Abstract: Clock synchronization and presentation synchronization are appropriately achieved in the case where transmission is performed by carrying, on a broadcast signal, a transmission media packet obtained by fragmenting transmission media such as video and audio. A clock of 27 MHz synchronized with time information acquired from a time information server is generated. Time information including frequency information of the clock of 27 MHz and synchronized with the time information acquired from the time information server is generated. A transmission medium is encoded. The encoded transmission medium is fragmented in a predetermined unit, and a transmission media packet including each fragment is generated. A stream that includes, on time division basis, the transmission media packet, a packet including the time information, and a packet having a control signal is carried on a broadcast wave and transmitted.

Abstract: A heat exchanger includes exchange tubes formed from an aluminum extrudate and fins made of an aluminum bare material. The wall of each heat exchange tube is composed of a main body portion made of an Al alloy forming the aluminum extrudate, and a covering layer made of an Al—Si—Zn alloy and covering the main body portion. A diffusion layer containing Zn and Si diffused from the Al—Si—Zn alloy is formed in an outer surface layer portion of the main body portion. A low potential portion whose spontaneous potential is the lowest, and a high potential portion whose spontaneous potential is 60 mV or more higher than that of the low potential portion, are present within a range between an outermost surface of the wall and a deepest portion of the diffusion layer such that the low potential portion is located toward the outermost surface of the wall.

Abstract: The present technology relates to a reception apparatus and a data processing method that permit efficient processing of time information. The reception apparatus receives a digital broadcasting signal based on an IP transport scheme, acquires time information from a physical layer frame transported in a physical layer of a protocol stack for the IP transport scheme, converts the acquired time information into the same data format as data provided in a payload of the physical layer frame, and outputs the converted time information to a processing section that performs a given process relating to an upper layer that is a layer higher than the physical layer. The present technology is applicable, for example, to a television receiver that supports an IP transport scheme.

Abstract: A configuration is provided for firmly fixing a transmitting and receiving unit for IVUS and a transmitting and receiving unit for OCT in a probe of an imaging apparatus for diagnosis in which space saving is achieved. The probe includes a cylindrical housing in which an ultrasonic wave transmitting and receiving unit is arranged on a distal side and a light transmitting and receiving unit is arranged on a proximal side. Two signal wires are connected to the ultrasonic wave transmitting and receiving unit and which extend toward the proximal side substantially parallel to each other and which are arranged in the housing so as to cause the distance between the two signal wires to be smaller than a width of a ball lens portion of the light transmitting and receiving unit.

Abstract: A laser light irradiation device is disclosed, which can include an optical guide having a columnar portion and transmitting laser light through the columnar portion; a reflecting portion having a reflecting surface that reflects the laser light transmitted through the optical guide; and a transmitting portion having a window part and disposed between the columnar portion of the optical guide and the reflecting portion in such a manner that one end of the transmitting portion is in contact with the columnar portion, the transmitting portion transmitting the laser light emitted from the columnar portion to the reflecting portion and transmitting the laser light reflected by the reflecting surface to cause the laser light to be radiated to an external through the window part. A diameter of the reflecting surface gradually becomes smaller as distance from a boundary between the transmitting portion and the reflecting portion increases.

Abstract: The present technology relates to a reception device, a reception method, a transmission device, and a transmission method in which a convergence service of broadcasting and communication can be realized more effectively. A FLUTE processing unit is configured to acquire one or more components constituting a specific service of a plurality of services included in broadcast waves of digital broadcasting using an IP transfer system, in accordance with a first control signal including information indicating types and a transfer system of the one or more components constituting the specific service such that the convergence service of broadcasting and communication can be realized more effectively. The present technology is applicable to, for example, a television receiver.

Abstract: There is provided a reception apparatus including a first acquisition unit which acquires, preceding text format second signaling data to be transmitted in a lower-level layer than an IP layer in a hierarchy of a protocol of an IP transmission system and containing control information independent of a service identified by an IP address, binary format first signaling data containing a flag indicating whether the second signaling data exists in digital broadcast using the IP transmission system, a second acquisition unit which acquires the second signaling data on the basis of the first signaling data, and a control unit which controls operation of the units which perform various types of processing on the basis of the second signaling data. The present technology can be applied to, for example, a television receiver.