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.

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.

The present technology relates a television apparatus that comprises circuitry configured to receive a digital broadcast signal, extract a packet including content included in the digital broadcast signal, extract time information included in a preamble of a physical layer frame, and send the time information and the packet including the content to other circuitry in the television apparatus. The television apparatus includes a transmission interface configured to interconnect the circuitry and the other circuitry. The television apparatus is further configured to process signaling that includes the time information that is comprised in the preamble of the physical layer frame in the digital broadcast signal.

The present technology relates a television apparatus that comprises circuitry configured to receive a digital broadcast signal, extract a packet including content included in the digital broadcast signal, extract time information included in a preamble of a physical layer frame, and send the time information and the packet including the content to other circuitry in the television apparatus. The television apparatus includes a transmission interface configured to interconnect the circuitry and the other circuitry. The television apparatus is further configured to process signaling that includes the time information that is comprised in the preamble of the physical layer frame in the digital broadcast signal.

Disclosed is an aerosol generating device including a real-time clock (RTC) configured to output time information measured from a reference time; a non-volatile memory; and a processor configured to: store the time information in the non-volatile memory when a preset operation is performed, when the RTC is initialized, restore the time information by correcting the reference time based on an initial reference time and an accumulated elapsed time from the initial reference time, and when the preset operation is performed again, store updated time information reflecting an elapsed time from the corrected reference time in the non-volatile memory.

Disclosed is an aerosol generating device including a real-time clock (RTC) configured to output time information measured from a reference time; a non-volatile memory; and a processor configured to: store the time information in the non-volatile memory when a preset operation is performed, when the RTC is initialized, restore the time information by correcting the reference time based on an initial reference time and an accumulated elapsed time from the initial reference time, and when the preset operation is performed again, store updated time information reflecting an elapsed time from the corrected reference time in the non-volatile memory.

A time synchronization network able to efficiently maintain time synchronization according to standard time is described. A communication device includes a time information output unit and a time synchronization unit. The time information output unit is configured to output time information with an internal clock that is stable. The time synchronization unit is configured to correct the time information of the time information output unit based on information on a time difference between the communication device and another communication device adjacent to the communication device.

A Reference Time Scale Dissemination System (RTS-DS) is provided that includes a RTS Dissemination Data Provider (RTS-DDP) and a User Terminal. The RTS Dissemination Data Provider is equipped with a radio receiver designed to receive radio signals and to compute a RTS-DDP Computed Time Scale based on received radio signals. The User Terminal (UT) is equipped with a Radio Receiver designed to receive radio signals and to compute a UT Computed Time Scale based on received radio signals, and with a Clock Device designed to be locked to the UT Computed Time Scale and to provide a UT Local Time Scale resultingly locked to the UT Computed Time Scale. The RTS-DPP is designed to receive a Reference Time Scale, and compute, at a RTS-DDP Computed Time, Time Quantities indicative of a difference between the RTS-DDP Computed Time Scale and the received Reference Time Scale, including a Time Scatter indicative of a difference between the RTS-DDP Computed Time and a corresponding Reference Time, and a Time Offset indicative of a mean value, computed over a timespan, of a number of differences between RTS-DDP Computed Times and corresponding Reference Times.

An optical transmission device of each node simultaneously sends a plurality of signals having different wavelengths as delay measurement signals to a transmission path. The optical transmission device determines a delay value that reflects a propagation delay calculated based on an arrival time difference between a plurality of wavelengths in a signal received from another node, and determines a waiting time amount based on the delay value and the propagation delay. The optical transmission device notifies the other node of the delay value. Each optical transmission device outputs the received signal from the other node with a delay of the waiting time amount. The optical transmission device generates an optical intermittent signal obtained by selecting and multiplexing any of time information, the delay measurement signal, and communication information. A reception side extracts a desired multiplexed signal from the received optical intermittent signals.

A communication system includes a master device and a plurality of slave devices. Each slave device stores a synchronization period and a correction amount of a difference between a time of the master device and a time of the slave device. The master device acquires the correction amount from the slave device, calculates a correspondence relationship between a synchronization period and the correction amount based on the correction amount, calculates a target synchronization period in the slave device based on the correspondence relationship, classifies each slave device into a plurality of groups based on the target synchronization period in each slave device, and sets a maximum target synchronization period among the target synchronization periods of at least one slave device classified into each group to a new synchronization period in which the master device performs the time synchronization along with the at least one slave device.