Robust single chip on screen display for home VCRs

Author

Cho, Sung-Il ; Kim, Kyoung-Hwan ; Kang, Bongsoon

Author_Institution

Media I, Samsung Electron., Kyungki, South Korea

fYear

1997

fDate

2-4 Dec 1997

Firstpage

122

Lastpage

124

Abstract

This paper describes the design of a robust on-screen-display (OSD) chip with improved automatic frequency control (AFC). The built-in AFC reduces the amount of sync jitter caused by the VCR head switching pulse, video copy guard signals, etc. This chip contains the OSD circuitry which can display characters of up to 12 rows by 30 columns on display systems. The character colors can be changed by programming the content of an 8-bit control register through the serial interface. It also provides the functions of half tone, box drawing, scroll, and blink. The chip was fabricated by using a 0.65 μm double metal CMOS process

Keywords

CMOS digital integrated circuits; VLSI; automatic frequency control; consumer electronics; digital signal processing chips; display instrumentation; video signal processing; video tape recorders; 0.65 micron; 8 bit; AFC; VLSI; automatic frequency control; blink; box drawing; character colors; control register; display systems; double metal CMOS process; half tone; head switching pulse; home VCR; on-screen-display chip; programming; scroll; serial interface; sync jitter reduction; video copy guard signals; Automatic frequency control; Character generation; Circuits; Displays; Jitter; Phase locked loops; Robustness; Signal generators; Timing; Video recording;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics, 1997. ISCE '97., Proceedings of 1997 IEEE International Symposium on

Print_ISBN

0-7803-4371-9

Type

conf

DOI

10.1109/ISCE.1997.658367

Filename

658367