Abstract: A carbon fiber manufacturing method includes joining first and second target fiber bundles with a joining fiber bundle, and carbonizing the joined bundles by feeding them through one or more carbonization furnaces. The joining includes forming an overlap between a first end of the joining fiber bundle and a second end of the first target fiber bundle and jetting a fluid to the overlap to form a first entangled portion, and forming an overlap between a second end of the joining fiber bundle and a first end of the second target fiber bundle and jetting a fluid to the overlap to form a second entangled portion.

Abstract: A carbon fiber manufacturing method includes joining first and second target fiber bundles with a joining fiber bundle, and carbonizing the joined bundles by feeding them through one or more carbonization furnaces. The joining includes forming an overlap between a first end of the joining fiber bundle and a second end of the first target fiber bundle and jetting a fluid to the overlap to form a first entangled portion, and forming an overlap between a second end of the joining fiber bundle and a first end of the second target fiber bundle and jetting a fluid to the overlap to form a second entangled portion.

Abstract: A monitoring apparatus (3) which is used to monitor the channel actually selected by a TV set (1). A reference tuner (32) independently reproduces and output an audio signal of the channel to be monitored. An audio comparison part (31) compares the feature parameter of an audio signal from a loudspeaker output terminal (13) of the TV set and the feature parameter of the audio signal from the reference tuner to detect whether or not the both signals coincide with each other. A remote control signal receiving part (34) receives a signal from a TV remote control signal transmitter (2) to obtain information of a channel to be switched to. At the time of changing the channel of the reference tuner until coincidence is detected in the audio comparison part, a control part (37) indicates first to the reference tuner the channel to be switched to identified by the remote control signal part, thereby permitting fast and accurate monitoring of the channel being selected by the TV set.

Abstract: A television channel selection monitoring apparatus for identifying the broadcast channel to which a television receiver means is tuned at any given time is disclosed. Instead of relying for the channel identification on the local oscillation frequency at the tuner of such television receiver means, the apparatus of the present invention utilizes the recognition of the channel identification number superimposed on the video signal received through the selected channel so that the image of the superimposed channel number may appear, for a certain duration following the channel selection, at a predetermined area of the image corresponding to the video signal.

Abstract: An automatic commercial message (CM) recognition device has an audio data preparing portion (6) for producing audio data from an audio signal contained in a TV program received, a silence data preparing portion (7) for producing silence data from the audio signal contained in the TV program received, an image change detector portion (8) for detecting a change of image on an image screen from a video signal of the TV program received, a control portion (12) for determining a start or an end of a CM when an output of the silence data detecting portion indicates a silence state and the image change detector portion detects a change of an image, and a CM data referencing portion (14) for deriving an audio data from the start or end of the CM and comparing it with a preliminarily stored audio data of the CM.