外文英文翻译 单片机在关闭型工作台系统中的应用.docVIP

The application of microcontroller in closed caption system Abstract This paper describes our newly designed microcontrollers for Closed Caption system application. These microcontrollers integrate the Closed Caption decoding function and other functions required for TV set control. 1. Introduction Microcontrollers that utilize the Closed Caption function have been developed. The Closed Caption decoding function must be provided for all TV sets sold in the U.S.fr on July 1993. These basic system development guidelines were as follows: (1) The system must provide stabilized reception. (2) The system should offer low-cost operation. The key word for this development was full-function. In regulations established on April 12,1991, the FCC specified the text mode as being optional, thus reflecting that committee on low-cost systems. With our goal of supplying Closed Caption hardware as a new information medium, we decided to develop a system satisfying the specifications for all options. Last year we introduced the add-on type of Closed Caption Decoder LSI kit designed for easy installation into existing TV sets. The Closed Caption decoding function is implemented efficiently by microcontrollers described in this paper. The high-performance On-Screen Display function for Closed Caption application can be used for easy TV set operation. This new microcontroller is a low cost, high accuracy instrumentation that requires only one external resistor to set gains of 1 to 10,000. Furthermore, This new microcontroller features 32-lead SOIC and DIP packaging that is smaller than discrete designs and offers lower power, making it a good fit for closed caption system and portable (or remote) applications. This new microcontroller, with its high accuracy of 40 ppm maximum nonlinearity, low offset voltage of 50 ?V max, and offset drift of 0.6 ?V/?C max, is ideal for use in precision data acquisition systems’ transducer interfaces. Furthermore, the low noise, low input bias curre