Title :
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
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;
Conference_Titel :
Consumer Electronics, 1997. ISCE '97., Proceedings of 1997 IEEE International Symposium on
Print_ISBN :
0-7803-4371-9
DOI :
10.1109/ISCE.1997.658367
