共查询到19条相似文献,搜索用时 78 毫秒
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本文介绍了相片传真机与IBMPC/XT的接口设计,用IBMPC/XT实现对相片传真发送机和接收机控制,及对相片的处理,存贮等功能。克服了传统相片传真机系统同时接收和发送,且无图像处理能力的弊端。 相似文献
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利用国内普遍采用的IBMPC/XT/AT及其兼容机,研制开发了微机图象处理硬件及其专用图象处理与分析软件,组织多功能红外热象仪微机图象处理与分析系统。 相似文献
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利用国内普遍采用的IBMPC/XT/AT及其兼容机,研制开发了微机图象处理硬件及其专用图象处理与分析软件,组织多功能红外热象仪微机图象处理与分析系统。 相似文献
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文章详细介绍了由V/F变换芯片构成高精度的A/D转换器的工作原理及与IBM-PC/XT机接口电路的实现方法 相似文献
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MR-1热像仪微机图像处理与分析系统研制吉书鹏(航空工业总公司第014中心洛阳471009)利用国内目前普遍采用的IBMPC/XT/AT及其兼容机,研制开发了微机图像处理硬件及专用图像处理软件,组成了多功能红外热像仪微机图像处理与分析系统。该系统可以... 相似文献
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外逸电子数目准确检测是智能型外逸电子传感器的关键所在。本文介绍一种IBMPC/XT外逸电子计数接口电路的原理和设计方法,并给出了在中断方式下进行数据处理的硬件和软件框图。 相似文献
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The IBM PCjr is the most recent addition to the IBM Personal Computer family. A major design consideration incorporated in the PCjr is a high level of program compatibility with the IBM Personal Computer and the IBM Personal Computer XT. The first part of this article describes the PCjr's hardware architecture, characteristics, and features. The second part describes the portion of the system design relating to the hardware and software necessary to ensure a high level of compatibility between the PCjr and the IBM Personal Computer as well as the IBM Personal Computer XT. 相似文献
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冯珅 《固体电子学研究与进展》1988,(2)
本文给出了带状和螺圈电感、叉指和MIM电容、有源层和金属膜电阻等常用于单片微波集成电路中的集总参数元件的分析模型,编写出了相应的计算机分析与设计程序——SLECAD,并能在1BM PC/XT微机上运行。利用此程序,对业已发表的元件数据以及本所的一些实验数据进行了对照分析计算,取得了相吻合的结果。 相似文献
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王宗军 《微电子学与计算机》1993,(5):17-19
VP-Expert是一种能在IBM PCXT/AT及其兼容机上运行的具有双向推理的骨架型专家系统开发工具.本文简介VP-Expert的主要特点和工作原理,并讨论了用VP-Expert实现不确定性推理的技术. 相似文献
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Blair J.D. Correale A. Jr. Cranford H.C. Dombrowski D.A. Erdelyi C.K. Hoffman C.R. Lamphere J.L. Lang K.W. Lee J.K. Mullen J.M. Norman V.R. Oakland S.F. 《Solid-State Circuits, IEEE Journal of》1989,24(6):1647-1655
The authors describe a 9.02×9.02-mm chip built in 1-μm CMOS with two levels of metal and an additional mask level for fabricating capacitors. It contains both analog and digital circuits and has provisions for self-test. The function includes the transmitter, receiver, protocol handler, an microprocessor, as well as interfaces for RAM/ROM storage, IBM PC bus, IBM PS/2 bus, IBM 3174 bus, and Motorola 68000 bus. The physical design terrains are formed by 24K circuits of standard cell gates, a 10K-circuit equivalent hand-honed custom microprocessor, and an analog macro. The chip operates from a single 5-V supply, and the power consumption is 0.8 W nominal at 16 Mb/s. The chip can also be operated at 4 Mb/s 相似文献
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This paper presents a fully integrated 0.13 μm CMOS MB‐OFDM UWB transmitter chain (mode 1). The proposed transmitter consists of a low‐pass filter, a variable gain amplifier, a voltage‐to‐current converter, an I/Q up‐mixer, a differential‐to‐single‐ended converter, a driver amplifier, and a transmit/receive (T/R) switch. The proposed T/R switch shows an insertion loss of less than 1.5 dB and a Tx/Rx port isolation of more than 27 dB over a 3 GHz to 5 GHz frequency range. All RF/analog circuits have been designed to achieve high linearity and wide bandwidth. The proposed transmitter is implemented using IBM 0.13 μm CMOS technology. The fabricated transmitter shows a ?3 dB bandwidth of 550 MHz at each sub‐band center frequency with gain flatness less than 1.5 dB. It also shows a power gain of 0.5 dB, a maximum output power level of 0 dBm, and output IP3 of +9.3 dBm. It consumes a total of 54 mA from a 1.5 V supply. 相似文献