公开(公告)号：CA1132246A

公开(公告)日：1982-09-21

申请号：CA339765

申请日：1979-11-13

Applicant: SONY CORP

Inventor： MITAMURA ICHIRO ,  TOOYAMA AKIRA ,  HOSONO TAKASHI

IPC: H04N9/24 ,  H04N9/16

Abstract: SOl 229 DEFLECTION CONTROL APPARATUS FOR A BEAM INDEX COLOR CATHODE RAY TUBE Deflection control apparatus is disclosed for a beam index color television receiver of the type which includes a cathode ray tube adapted to display a video picture in response to a received color television signal. The beam index cathode ray tube is provided with index stripes which are scanned by the electron beam as the beam scans a raster across the display screen of the tube. A detector detects when the respective index stripes are scanned by the beam so as to produce an index signal, the frequency of which varies from a predetermined frequency value when the scanning speed of the beam varies. An oscillator generates an oscillating signal that is synchronized with the index signal, and a phase locked loop, which includes a comparator for comparing the index signal to the oscillating signal so as to produce a control signal as a function of the difference therebetween, adjusts the frequency of the oscillating signal in accordance with that control signal. The television receiver also includes a switching arrangement which is responsive to the oscillating signal to switch color information signals for the purpose of modulating the beam. The deflection control apparatus includes a deflection device for controlling the deflection of the beam; and a deflection signal generator responsive to the control signal produced by the phase-locked loop for supplying deflection control signals to the deflection device so as to vary the deflecting speed of the beam and thereby maintain a substantially constant scanning speed thereof.

公开(公告)号：DE2856199A1

公开(公告)日：1979-07-05

申请号：DE2856199

申请日：1978-12-27

Applicant: SONY CORP

Inventor： TOOYAMA AKIRA ,  OHKOSHI AKIO ,  TOOYAMA TAKASHI ,  YUKAWA TAKAHIRO ,  HOSONO TAKASHI

IPC: H04N9/24

公开(公告)号：CA1149056A

公开(公告)日：1983-06-28

申请号：CA348829

申请日：1980-03-31

Applicant: SONY CORP

Inventor： TOOYAMA AKIRA ,  HOSONO TAKASHI

IPC: H04N3/22 ,  H04N3/16 ,  H04N3/23 ,  H04N9/24 ,  H01J29/72

Abstract: A horizontal scanning rate correction apparatus for a television receiver having a cathode-ray tube includes a memory for storing signals representing deviations of the horizontal scanning rate of an electron beam from a desired scanning rate, and a circuit for reading the stored signals from the memory. The apparatus further includes a circuit for sensing a fluctuation value of the high voltage from a high voltage source to produce a correcting signal, and a scanning rate modulating device supplied with the output signal from the reading circuit and the correcting signal from the fluctuation value sensing circuit to correct the scanning rate to be constant in value.

公开(公告)号：CA1131767A

公开(公告)日：1982-09-14

申请号：CA318216

申请日：1978-12-19

Applicant: SONY CORP

Inventor： HOSONO TAKASHI ,  OHKOSHI AKIO ,  TOOYAMA TAKASHI ,  TOOYAMA AKIRA ,  YUKAWA TAKAHIRO

IPC: H04N9/24

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.

公开(公告)号：AU5301079A

公开(公告)日：1980-05-29

申请号：AU5301079

申请日：1979-11-20

Applicant: SONY CORP

Inventor： MITAMURA ICHIRO ,  TOOYAMA AKIRA ,  HOSONO TAKASHI

IPC: H04N9/24 ,  H04N3/16

公开(公告)号：DE2927223A1

公开(公告)日：1980-01-17

申请号：DE2927223

申请日：1979-07-05

Applicant: SONY CORP

Inventor： TOOYAMA AKIRA ,  TOOYAMA TAKASHI ,  HOSONO TAKASHI

IPC: H01J29/34 ,  H04N9/24

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. The driving circuit includes a time adjustment circuit for compensating the inherent time delay of the overall apparatus such that the respective color control signals are gated in time correspondence with the position of the beam at a color element that is associated with the gated color control signal.

公开(公告)号：DE2855139A1

公开(公告)日：1979-06-21

申请号：DE2855139

申请日：1978-12-20

Applicant: SONY CORP

Inventor： TOOYAMA AKRIA ,  OHKOSHI AKIO ,  TOOYAMA TAKASHI ,  YUKAWA TAKAHIRO ,  HOSONO TAKASHI

IPC: H01J31/20 ,  H01J29/34 ,  H04N9/24

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.

公开(公告)号：AU4295178A

公开(公告)日：1979-05-10

申请号：AU4295178

申请日：1978-12-28

Applicant: SONY CORP

Inventor： TOOYAMA AKIRA ,  OHKOSHI AKIO ,  TOOYAMA TAKASHI ,  YUKAWA TAKAHIRO ,  HOSONO TAKASHI

IPC: H04N9/24 ,  H01J29/98 ,  H01J29/34 ,  H01J29/52

公开(公告)号：DE3442381A1

公开(公告)日：1985-06-27

申请号：DE3442381

申请日：1984-11-20

Applicant: SONY CORP

Inventor： HOSONO TAKASHI ,  TOHYAMA AKIRA

IPC: H04N9/24

Abstract: Deflection control apparatus for a beam index color television receiver includes a phase-locked loop for synchronizing an oscillating signal with an index signal generated by an electron beam scanning index stripes on the screen of the cathode ray tube of the receiver. The oscillating signal is supplied to a color switcher so that the scanning electron beam is modulated with color information corresponding to the respective color phosphor stripe being scanned. An error signal representative of the horizontal scanning speed of the beam is supplied to a deflection device to cause the generation of a compensating magnetic field to correct for non-linearities in the scanning speed. A compensation circuit delays the error signal so that the elapsed time from the detection of the scanning of one of the index stripes to the time of generation of the compensating magnetic field in accordance therewith equals one horizontal line period.

公开(公告)号：AU3568984A

公开(公告)日：1985-05-30

申请号：AU3568984

申请日：1984-11-20

Applicant: SONY CORP

Inventor： HOSONO TAKASHI ,  TOHYAMA AKIRA

IPC: H04N9/24 ,  H04N9/22

Abstract: Deflection control apparatus for a beam index color television receiver includes a phase-locked loop for synchronizing an oscillating signal with an index signal generated by an electron beam scanning index stripes on the screen of the cathode ray tube of the receiver. The oscillating signal is supplied to a color switcher so that the scanning electron beam is modulated with color information corresponding to the respective color phosphor stripe being scanned. An error signal representative of the horizontal scanning speed of the beam is supplied to a deflection device to cause the generation of a compensating magnetic field to correct for non-linearities in the scanning speed. A compensation circuit delays the error signal so that the elapsed time from the detection of the scanning of one of the index stripes to the time of generation of the compensating magnetic field in accordance therewith equals one horizontal line period.