Abstract: An ACM-ECU executes a first switching control for switching from a phase fixed control to a phase variable control, or a second switching control for switching from the phase variable control to the phase fixed control, simultaneously with detecting or after having detected switching of a gear position by a gear position detecting function. A current waveform map is used at a time of execution of the phase variable control, and a correction map is used at a time of execution of the phase fixed control.

Abstract: Normally, a phase fixed control is executed. In the event that a vibration value VAPP of an engine becomes greater than or equal to a predetermined vibration value VAPP_th, a first phase of an active vibration generated by a first actuator and a second phase of an active vibration generated by a second actuator are changed in mutually opposite directions.

Abstract: A phase variable control is prohibited in the case that a rotational speed NE of the engine is less than a first predetermined rotational speed NE_th1.

Abstract: An ACM-ECU executes a first switching control for switching from a phase fixed control to a phase variable control, or a second switching control for switching from the phase variable control to the phase fixed control, simultaneously with detecting or after having detected switching of a gear position by a gear position detecting function. A current waveform map is used at a time of execution of the phase variable control, and a correction map is used at a time of execution of the phase fixed control.

Abstract: A phase variable control is prohibited in the case that a rotational speed NE of the engine is less than a first predetermined rotational speed NE_th1.

Abstract: Normally, a phase fixed control is executed. In the event that a vibration value VAPP of an engine becomes greater than or equal to a predetermined vibration value VAPP_th, a first phase of an active vibration generated by a first actuator and a second phase of an active vibration generated by a second actuator are changed in mutually opposite directions.

Abstract: Apparatus for controlling the electron beam in a beam index color television receiver of the type having a cathode ray tube whose display screen is provided with beam-excitable color elements and index elements which are scanned by the beam. The apparatus comprises an index signal generator for generating a periodic index signal as the index elements are scanned by the beam. Color gates are provided for sequentially gating respective color control signals individually to modulate the electron beam as that beam scans the color elements. A gating signal generator generates sequential gating signals at a frequency synchronized with the frequency of the periodic index signal. These gating signals are supplied in sequence to the color gates to control the latter so as to gate the respective color control signals. A driving circuit responds to the periodic index signal to drive the gating signal generator.

Abstract: A beam index color cathode ray tube has index stripes spaced apart across a run-in area of the screen which have a pitch substantially equal to the pitch of index stripes in an image area, and a predetermined number of the index stripes in the run-in area are counted as an electron beam scans them to preset color control circuits to a predetermined condition at the commencement of scanning of the image area. A characteristic of the signal resulting from scanning of the index stripes may be used to begin the counting thereof from a specific one of the index stripes in the run-in area other than the first one encountered by the electron beam.

Abstract: A beam index color cathode ray tube has index stripes spaced apart across a run-in area of the screen and which have a pitch substantially equal to the pitch of index stripes in an image area. A plurality of the index stripes in the run-in area generate an index signal as an electron beam scans them. An index stripe is omitted from the portion of the run-in area nearest the boundary with the image area to provide a characteristic to the index signal which permits generation of a trigger signal to preset color control circuits to a known condition as the electron beam enters the image area. A gating circuit blocks trigger signals which may be generated during scanning of the image area.