<p>Bending of vertical bar type information such as displayed on the screen of a kinescope (24) as a tuning indication, is due to kinescope beam current variations. Means (58) are provided for reducing the beam current threshold level of an automatic beam current limiter stage 44 to a lower threshold level or for otherwise (23) reducing the beam current, whenever vertical bar type information is to be displayed.</p>
申请公布号
EP0136823(B1)
申请公布日期
1989.01.25
申请号
EP19840305963
申请日期
1984.08.31
申请人
RCA LICENSING CORPORATION
发明人
NORLEY, RONALD RICHARD;CHEN, KEMING JOSEPH;SENDELWECK, GENE KARL