Patents Assigned to Hitachi Denshi Kabushiki Kaisha & Hitachi - Justia Patents Search

Patents Assigned to Hitachi Denshi Kabushiki Kaisha & Hitachi

Multi-tube color TV camera in which linear and non-linear components of a registration error due to chromatic aberration of a lens are corrected with corresponding deflection correction signals

Patent number: 4733296

Abstract: The chromatic aberration of the lens of a multi-tube color TV camera is separated into a linear component and a non-linear component. Horizontal and vertical deflection correction waveforms are generated in accordance with these two components. These two correction waveforms are superimposed onto horizontal and vertical deflection waveforms employed to deflect electron beams in said camera tubes. A registration error caused by the chromatic aberration of the lens is corrected with high accuracy by employing these correction waveforms.

Type: Grant

Filed: February 18, 1986

Date of Patent: March 22, 1988

Assignee: Hitachi Denshi Kabushiki Kaisha & Hitachi

Inventors: Masanori Honbo, Kenji Takahashi, Koji Kudo, Shusaku Nagahara