Abstract: Provided are a solar panel (1), a first DC/DC conversion circuit (13), a DC/AC conversion circuit (21) connected via a DC bus (25), a second DC/DC conversion circuit (17) for controlling bus voltage in the case of power outage, a first control section (14) having two kinds of control modes and controlling the first DC/DC conversion circuit (13), a second control section (18) for controlling the second DC/DC conversion circuit (17), and a third control section (22) for controlling the DC/AC conversion circuit (21). The second control section (18) controls bus voltage in the case of power outage, and the first control section (14) switches the control mode based on information of the second control section (18).

Abstract: A power conversion device including a solar panel, a first DC/DC conversion circuit, a DC/AC conversion circuit connected via a DC bus, a second DC/DC conversion circuit for controlling bus voltage in the case of power outage, a first control section having two kinds of control modes and controlling the first DC/DC conversion circuit, a second control section for controlling the second DC/DC conversion circuit, and a third control section for controlling the DC/AC conversion circuit. The second control section controls bus voltage in the case of power outage, and the first control section switches the control mode based on information of the second control section.

Abstract: Even when a communication state between a tuner device and a display device is deteriorated, a television broadcast receiving device enables a user to view broadcast. The television broadcast receiving device of the present invention has a tuner section that receives a digital broadcast signal, selects the digital broadcast signal to decode the digital broadcast signal, generates video data including a video signal and an audio signal, and converts the video data into processed video data suitable for wireless communication, and a display section that receives the processed video data from the tuner section through wireless communication, and displays a video based on the processed video data. The tuner section has a recording/playback section that records and reads the video data in and from a predetermined recording section according to a change in state of the communication with the display section.

Abstract: A recording and playback apparatus of the present invention comprises a part for measuring a speed for recording data into a recording medium, a part for detecting a bit rate of data inputted to this apparatus, a part for changing the bit rate of the data, a part for setting a bit rate to the part for changing the bit rate and a part for detecting the recording medium and recording and reading out data into/from the recording medium.

Abstract: Even when a communication state between a tuner device and a display device is deteriorated, a television broadcast receiving device enables a user to view broadcast. The television broadcast receiving device of the present invention has a tuner section that receives a digital broadcast signal, selects the digital broadcast signal to decode the digital broadcast signal, generates video data including a video signal and an audio signal, and converts the video data into processed video data suitable for wireless communication, and a display section that receives the processed video data from the tuner section through wireless communication, and displays a video based on the processed video data. The tuner section has a recording/playback section that records and reads the video data in and from a predetermined recording section according to a change in state of the communication with the display section.

Abstract: A recording and playback apparatus of the present invention comprises a part for measuring a speed for recording data into a recording medium, a part for detecting a bit rate of data inputted to this apparatus, a part for changing the bit rate of the data, a part for setting a bit rate to the part for changing the bit rate and a part for detecting the recording medium and recording and reading out data into/from the recording medium.

Abstract: A multistream distributor and a multi-descrambler are provided at low cost, which are capable of displaying a plurality of transport streams corresponding respectively to a plurality of channels on a plurality of receivers or the like. Three first scrambled transport streams received via tuners are time-multiplexed by a multiplexer into one second scrambled transport stream. A multi-descrambler descrambles and encrypts each of the three first scrambled transport streams forming one second scrambled transport stream in correspondence with each of receivers.

Abstract: In a process for multiplexing a plurality of transport streams, a transport stream ID and a local time stamp are added to each of the packets that form a transport stream, and in a process for separating a multi-stream obtained by multiplexing the transport streams, the packets forming each transport stream are temporarily stored in a buffer, and at a timing calculated based on the transport stream ID and the local time stamp, the packet interval for the original transport stream is reproduced. In this manner, jitter can be removed.