A high-performance digital convergence and focus system for projection TV

Author

Buttar, A. ; Jobling, D. ; Rusznyak, A. ; Gleim, G. ; Heizmann, F.

Author_Institution

Motorola European Semiconductor Group, Geneva, Switzerland

Volume

38

Issue

3

fYear

1992

fDate

8/1/1992 12:00:00 AM

Firstpage

734

Lastpage

740

Abstract

A new multistandard digital convergence and focus system was developed for both rear and front projection TV, demonstrating high picture quality and different picture zoom modes. The key goals of this development project were low manufacturing cost, a high level of integration of functions, and application in a wide variety of different TV sets and standards. Fully automatic adjustment is possible, so production costs are low. In addition, a static loop using either electrical or optical feedback allows correction of convergence characteristics during set operation

Keywords

focusing; optical projectors; television picture tubes; television receivers; TV CRT; automatic adjustment; back propagation TV; different picture zoom modes; electrical feedback; front projection TV; high picture quality; low manufacturing cost; multistandard digital convergence/focus system; optical feedback; static loop; CMOS digital integrated circuits; CMOS integrated circuits; Cathode ray tubes; Coils; Convergence; Costs; Focusing; Production; Switches; TV;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.156762

Filename

156762