坚固的单片屏幕显示的家庭录像机

ISCE '97. Proceedings of 1997 IEEE International Symposium on Consumer Electronics (Cat. No.97TH8348) Pub Date : 1997-12-02 DOI:10.1109/ISCE.1997.658367

Sung-il Cho, Kyoung-Hwan Kim, B. Kang

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引用次数: 0

摘要

本文介绍了一种改进自动频率控制(AFC)的鲁棒显示(OSD)芯片的设计。内置的AFC减少了由录像机头部开关脉冲、视频拷贝保护信号等引起的同步抖动量。该芯片包含OSD电路，可在显示系统上显示多达12行× 30列的字符。字符颜色可以通过串行接口编程8位控制寄存器的内容来改变。它还提供了半色调、框绘制、滚动、闪烁等功能。该芯片采用0.65 /spl μ m双金属CMOS工艺制备。

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Robust single chip on screen display for home VCRs

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 /spl mu/m double metal CMOS process.

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ISCE '97. Proceedings of 1997 IEEE International Symposium on Consumer Electronics (Cat. No.97TH8348)

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