公开(公告)号：HK45490A

公开(公告)日：1990-06-22

申请号：HK45490

申请日：1990-06-14

Applicant: MOTOROLA INC

Inventor： JOBLING DAVID TREVOR ,  NEWTON ANTHONY DAVID

IPC: H03K4/10 ,  H04N3/23 ,  H04N3/233

Abstract: A timbase circuit is desribed for providing a horizontal drive correction waveform to correct for pincushion distortion in which a parabolic correction current is derived by squaring (4) a current proportional to the difference between the instantaneous and average values of the vertical ramp voltage. The correction current may be tilted by combination with a linear current proportional to the ramp voltage (7) and may also be amplitude controlled (16).

公开(公告)号：GB2225504A

公开(公告)日：1990-05-30

申请号：GB8827071

申请日：1988-11-18

Applicant: MOTOROLA INC

Inventor： INC MOTOROLA ,  JOBLING DAVID TREVOR

IPC: H03F1/34 ,  H03F1/08 ,  H03F1/48

Abstract: An amplifier circuit is described comprising a transconductance amplifier (10) in series with a voltage gain stage (20). A compensation capacitance (51) coupled across the voltage gain stage (20) includes a capacitance (51) whose value is dependent upon the output voltage of the voltage gain stage (20) so as to optimise amplifier stability over a wide range of output voltages.

公开(公告)号：FR2748171B1

公开(公告)日：1998-07-17

申请号：FR9605430

申请日：1996-04-30

Applicant: MOTOROLA INC

Inventor： JOBLING DAVID TREVOR ,  PILLOUD OLIVIER ,  LECLERCQ PASCAL ,  TRAN LAURENT

IPC: E05B49/00 ,  B60R25/00 ,  E05B65/20 ,  G07C9/00 ,  H04L7/04 ,  H04L7/08 ,  H04Q9/00 ,  H04L25/40

公开(公告)号：FR2748171A1

公开(公告)日：1997-10-31

申请号：FR9605430

申请日：1996-04-30

Applicant: MOTOROLA INC

Inventor： JOBLING DAVID TREVOR ,  PILLOUD OLIVIER ,  LECLERCQ PASCAL ,  TRAN LAURENT

IPC: E05B49/00 ,  B60R25/00 ,  E05B65/20 ,  G07C9/00 ,  H04L7/04 ,  H04L7/08 ,  H04Q9/00 ,  H04L25/40

公开(公告)号：HK52390A

公开(公告)日：1990-07-20

申请号：HK52390

申请日：1990-07-12

Applicant: MOTOROLA INC

Inventor： JOBLING DAVID TREVOR ,  NEWTON ANTHONY DAVID

IPC: H04N3/22 ,  H04N3/223 ,  H04N5/14

Abstract: A timebase circuit is described, for compensation of picture dimensions of television type display, for EHT fluctuations in which a control current (ic) is derived by multiplying (17) a current (IEHT) dependent upon the picture beam current with a reference current (IDAC) derived from a digital to analogue converter (19) fed with a digital code.

公开(公告)号：DE3575834D1

公开(公告)日：1990-03-08

申请号：DE3575834

申请日：1985-06-03

Applicant: MOTOROLA INC

Inventor： JOBLING DAVID TREVOR ,  NEWTON ANTHONY DAVID

IPC: H03K4/10 ,  H04N3/23 ,  H04N3/233 ,  H04N3/22

Abstract: A timbase circuit is desribed for providing a horizontal drive correction waveform to correct for pincushion distortion in which a parabolic correction current is derived by squaring (4) a current proportional to the difference between the instantaneous and average values of the vertical ramp voltage. The correction current may be tilted by combination with a linear current proportional to the ramp voltage (7) and may also be amplitude controlled (16).

公开(公告)号：GB2160047B

公开(公告)日：1989-01-18

申请号：GB8513920

申请日：1985-06-03

Applicant: MOTOROLA INC

Inventor： JOBLING DAVID TREVOR ,  NEWTON ANTHONY DAVID

IPC: H03K4/50 ,  H03K4/10 ,  H03K4/90 ,  H04N3/23 ,  H03K6/04

Abstract: @ A timebase circuit for use in the vertical timebase of a television receiver in which a linearity control current fed to the ramp capacitor is derived by multiplying a current proportional to the difference between the instantaneous and average ramp voltages by a reference current which may be adjusted to control linearity.

公开(公告)号：GB2160080B

公开(公告)日：1988-01-20

申请号：GB8414316

申请日：1984-06-05

Applicant: MOTOROLA INC

Inventor： JOBLING DAVID TREVOR ,  NEWTON ANTHONY DAVID

IPC: H03K4/10 ,  H04N3/23 ,  H04N3/233 ,  H04N3/223

Abstract: A timbase circuit is desribed for providing a horizontal drive correction waveform to correct for pincushion distortion in which a parabolic correction current is derived by squaring (4) a current proportional to the difference between the instantaneous and average values of the vertical ramp voltage. The correction current may be tilted by combination with a linear current proportional to the ramp voltage (7) and may also be amplitude controlled (16).

公开(公告)号：GB2160079B

公开(公告)日：1988-01-06

申请号：GB8414315

申请日：1984-06-05

Applicant: MOTOROLA INC

Inventor： JOBLING DAVID TREVOR ,  NEWTON ANTHONY DAVID

IPC: H04N3/22 ,  H04N3/223 ,  H04N5/14

Abstract: A timebase circuit is described, for compensation of picture dimensions of television type display, for EHT fluctuations in which a control current (ic) is derived by multiplying (17) a current (IEHT) dependent upon the picture beam current with a reference current (IDAC) derived from a digital to analogue converter (19) fed with a digital code.

公开(公告)号：GB2160080A

公开(公告)日：1985-12-11

申请号：GB8414316

申请日：1984-06-05

Applicant: MOTOROLA INC

Inventor： JOBLING DAVID TREVOR ,  NEWTON ANTHONY DAVID

IPC: H03K4/10 ,  H04N3/23 ,  H04N3/233 ,  H04N3/223

Abstract: A timbase circuit is desribed for providing a horizontal drive correction waveform to correct for pincushion distortion in which a parabolic correction current is derived by squaring (4) a current proportional to the difference between the instantaneous and average values of the vertical ramp voltage. The correction current may be tilted by combination with a linear current proportional to the ramp voltage (7) and may also be amplitude controlled (16).