Television receiver with two electron beams simultaneously scann

Details Television receiver with two electron beams simultaneously scann Television receiver with two electron beams simultaneously scann

1984-02-13

1990-09-04

Groody, James J.

Facsimile and static presentation processing

Facsimile

Recording apparatus

315 131, 358 65, 358140, H04N 568, H04N 920

Patent

active

049549014

ABSTRACT:
A television receiver for providing a non-interlaced display of a received television signal intended for interlaced display includes a cathode ray tube having first and second cathodes, control grids and a fluorescent screen, a circuit for applying a first video signal to the first cathode such that the first cathode emanates a first electron beam in response to the first video signal, a circuit for applying a second video signal to the second cathode such that the second cathode emanates a second electron beam in response to the second video signal, a deflection device for horizontally and vertically deflecting the first and second electron beams from the first and second cathodes simultaneously and a deflection compensating device provided between the first and second cathodes and the fluorescent screen for making the second electron beam impinge upon the fluorescent screen between the lines scanned by the first electron beam such that the second electron beam forms a visual display with lines 1/2 line interval apart, in the vertical direction, from a visual display formed by the first electron beam. The first and second video signals fed to the first and second cathodes are the same in one embodiment. In other embodiments, the video signals fed to the two cathodes in one line may be the video signal for that one line and the average of the video signal for that one line and the video signal for the preceding or succeeding line, respectively.

REFERENCES:
patent: 2855542 (1958-10-01), Schade
patent: 3363129 (1968-01-01), De France et al.
patent: 3411029 (1968-11-01), Karr
patent: 3513350 (1970-05-01), Ohgoshi et al.
patent: 4400722 (1983-08-01), Miyatake et al.
patent: 4415931 (1983-11-01), Dischert
patent: 4521802 (1985-06-01), Ikeda
patent: 4604547 (1986-08-01), Saito et al.
patent: 4668977 (1987-05-01), Ohno et al.
Liff, Alvin A., Color and Black & White Television Theory and Servicing, Second Edition, Prentice-Hall, date unknown, p. 40.

Affiliated with

Also associated with

Rating

Television receiver with two electron beams simultaneously scann does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Television receiver with two electron beams simultaneously scann, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Television receiver with two electron beams simultaneously scann will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-445691