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Key Tronic () is a computer equipment manufacturer. Founded in 1969, its core product group includes keyboards, mice and other input devices. Key Tronic operates worldwide with activities in the United States, Mexico, and China. After the introduction of the IBM PC, Key Tronic began manufacturing keyboards compatible with those computer system units.〔 Most of their keyboards are based on the 8048 microcontroller to communicate to the computer. Their early keyboards used an Intel 8048 MCU. However, as the company evolved, they began to use their own 8048-based MCUs. In 1978, Key Tronic Corporation introduced keyboards with capacitive-based switches, one of the first keyboard technologies to not use self-contained switches. There was simply a sponge pad with a conductive-coated Mylar plastic sheet on the switch plunger, and two half-moon trace patterns on the printed circuit board below. As the key was depressed, the capacitance between the plunger pad and the patterns on the PCB below changed, which was detected by integrated circuits (IC). These keyboards were claimed to have the same reliability as the other "solid-state switch" keyboards such as inductive and Hall-Effect, but competitive with direct-contact keyboards. KeyTronicEMS At A Glance Certifications: * ISO 9002 Certified Worldwide Facilities * ISO 14001 Certified Worldwide Facilities * FDA Registered Manufacturing Facilities * FCC, CE, UL and TUV In-House Certification Facilities Worldwide Capacity: * United States * Mexico * China Competencies: * Concept development * Design * Electrical Engineering * Electro-mechanical Engineering * Mechanical Engineering * Printed Circuit Board Assembly * Flex Circuit Assembly * Prototype * Precision Tooling * Injection Molding * Assembly * Global Procurement and Materials Management * In-house Testing * Worldwide Distribution * Marketing KeyTronicEMS serves a diverse group of customers, manufacturing a variety of products, including: * Printers * Laser printers * Inkjet printers * Impact printers * Thermal receipt printers * Thermal barcode printers * Printer sub-assemblies Telecommunications * Telecommunication satellite unit * Electronic dispatch unit * Trailer tracking device * Handheld wireless device * Internet Appliance * RF data transmission device Computer and Peripherals * Media storage devices * Barcode scanners * Multi-media display * Biometric scanners * Cable assemblies * Keyboards Consumer Household products * Security systems * Educational toys * Projection TV subassemblies * Livestock retinal scanner * Gaming devices * Digital camera sub assemblies * Digital projector sub assemblies Medical * Ear check diagnostic device * Diabetes glucose sensor * Muscle training device Automotive * Automotive CD/Radio Console Panel * Console Buttons ==References== 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Key Tronic」の詳細全文を読む スポンサード リンク
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