摘要:
A system for detecting a voltage and/or current of a single phase and/or polyphase alternating current includes a sample-hold circuit that detects and holds instantaneous values of a plurality of sampling points over a fixed time period of the alternating current as sampled values. A first calculation circuit calculates the real part and the imaginary part of the Fourier coefficient with respect to a fundamental wave and/or a component of the positive-phase sequence of the alternating current detected from the plurality of sampled values thus held and outputs respective calculated values thereof. A second calculation circuit performs a predetermined calculation to the calculated values of the real and imaginary parts and thereby calculates and outputs the amplitude of the fundamental wave and/or component of positive-phase sequence of the alternating current.
摘要:
An encoded stream reproducing apparatus includes a separation unit for receiving a TS and separating a video PES and a sound PES from the TS, and a video decoding unit for decoding a separated video PES. The video decoding unit includes a PES separation unit for separating a PES header from the separated video PES and supplying an ES, ES error detection unit for detecting a syntax error of the ES and discarding an ES including the syntax error and supplying an ES without including the syntax error, and a decoder for decoding an ES supplied from the error detection unit and supplying a video signal.
摘要:
According to one embodiment, a video PTS correction unit judges whether or not a PTS written in a PES header of a video PES contained in a video PES buffer is at an abnormal value, corrects the PTS if it is abnormal value, and adds the PTS to each video frame of the video PES. A video frame separator unit separates a video frame to which the PTS was added, from the video PES. A video decoder decodes the separated video frame and provides the decoded video frame at a time set based on the PTS of the video frame.
摘要:
Video ES and audio ES filters extract video and audio payloads from a transport stream. Video ES and audio ES recording units record the payloads as a PES (Packetized Elementary Stream) or an ES (Elementary Stream). An editing control unit edits the ES recorded by the recording units, on the basis of an editing instruction input from a user interface. A TS generating circuit re-converts the ES edited by the editing control unit into a transport stream and outputs the transport stream.
摘要:
A sound digital broadcast recording apparatus includes receiving means for receiving a multiplexed stream, stream separating means for separating the multiplexed stream received by the receiving means into sound data and a section, decoder means for decoding the sound data, recording means for recording the sound data, silence detecting means for detecting a silence portion in the decoded sound data, attribute setting means for setting attribute information of data to be automatically recorded by the recording means, attribute comparing means for comparing sound data attribute information included in the section with the attribute information set by the attribute setting means, and recording control means for determining whether the sound data is to be recorded or not based on a comparison result and causing the recording means to start recording from a silence detecting point.