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Serial To Usb Keyboard Emulators' title='Serial To Usb Keyboard Emulators' />Microchip Technology Inc. FlashIP solutions, providing lowrisk product development, lower total. List of USB IDs Maintained by Stephen J. Gowdy If you have any. Syntax vendor vendorname device devicename single tab interface. Pointing stick Wikipedia. This article is about a computer input device. For the teaching and presentation aid, see Pointer rod. Detail rear side of a Lenovo Think. Pad pointing stick with the strain gauges. Serial To Usb Keyboard Emulators' title='Serial To Usb Keyboard Emulators' />Size 8 x 8 mm. IBM Think. Pad caps left to right Soft Dome, Soft Rim, Classic Dome, Eraser Head discontinuedA pointing stick is an isometric joystick used as a pointing device, as with a touchpad or trackball, typically mounted in a computer keyboard. Movements of the pointing stick are echoed on the screen by movements of the pointer or cursor and other visual changes. The pointing stick senses applied force by using two pairs of resistivestrain gauges. A pointing stick can be used by pushing with the fingers in the general direction the user wants the cursor to move. The velocity of the pointer depends on the applied force so increasing pressure causes faster movement. The relation between pressure and cursor or pointer speed can be adjusted, similar to the way the mouse speed is adjusted. On a QWERTY keyboard, the stick is typically embedded between the G, H and B keys, and the mouse buttons are placed just below the space bar. The mouse buttons can be operated right handed or left handed due to their placement below the keyboard along the centerline. This pointing device has also appeared next to screens on compact sized laptops such as the Toshiba Libretto and Sony VAIO UX. VariantseditPointing sticks typically have a replaceable rubber cap, called a nub, which can be a slightly rough eraser head material Classic Dome or another shape Soft Dome or Soft Rim, or concave. The cap is red on Think. Pads, but is also found in other colours on other machines. For example, it may be grey, black or blue on some Dell models, blue on some HPCompaq laptops, or green on most Toshiba laptops produced before the 2. Button configurations vary depending on vendor and laptop model. Think. Pads have a prominent middle mouse button, but some models have no physical buttons. Toshiba employs concentric arcs. In the early 1. 99. Raritan offers a wide range of converters, adapters and emulators for the data center that convert keyboard, monitor and mouse signals to other platforms. Not Recommended for new designs. Please consider this device MCP2221A View Side By Side Comparison. Leave Us Alone 1975 Download. The MCP2221 is a USBtoUARTI2C serial converter. Zenith Data Systems shipped a number of laptop computers equipped with a device called J Mouse, which essentially used a special keyswitch under the J key to allow the J keycap to be used as a pointing stick. In addition to appearing between the G, H and B keys on a QWERTY keyboard, these devices or similar can also appear on gaming devices as an alternative to a D pad or analog stick. On a certain Toshiba Libretto mini laptop, the pointing stick was located next to the display. IBM sold a mouse with a pointing stick in the location where a scroll wheel is common now. A pointing stick on a mid 1. Toshiba laptop. The two buttons below the keyboard act as a computer mouse the top button is used for left clicking while the bottom button is used for right clicking. Optical pointing sticks are also used on some ultrabook tablet hybrids, such as the Sony Duo 1. Think. Pad Tablet and Samsung Ativ Q. Design challengeseditThe IBM Track. Point III and the Track. Point IV have a feature called Negative Inertia that causes the pointers velocity to overreact when it is accelerated or decelerated. Negative Inertia is intended to avoid feeling of inertia or sluggishness when starting or stopping movement. Usability tests at IBM have shown that it is easier for users to position the pointer with Negative Inertia, and performance is 7. Another challenge with pointing stick design is identification of the zero position the position where no motion is desired. Because the amount of motion is small, the sensitivity of the sensors must be high, and they are subject to noise interference. A typical solution, which assumes that pointing sticks frequently go out of calibration, is to interpret a variation below a certain threshold over a given interval, perhaps one or several seconds as being a neutral stick. However the recalibration can also allow brief periods of drifting movement of the cursor while the user is not moving the pointing stick. In practice, if the re calibration interval is set too short and if the user applies moderately consistent pressure to the stick for such an interval, this method results mistakenly re zeroed the stick and the pointer stops. Additional pressure again moves the cursor, but the calibration may occur again, requiring even more force. If the user releases pressure at this point, the change will be interpreted as an instruction to move the opposite direction. In time, the software will re calibrate and stop the motion. Additionally, if press to select is enabled, the software may generate unexpected click events by touching the pointing stick during typing. Since Think. Pad computers have a nub that is responsive to pressure in a direction, and there is a patent for this,citation needed other companies have made it so a person has to move the finger a large distance to cause the nub to rock from side to side in a much less efficient way. HistoryeditIn 1. Ted Selker, a researcher at PARC, worked on a pointing stick based on a studycitation needed that a typist needs a relatively long 0. Selker built a model of a device that would minimize this time. It was only three years later, working at IBM, that Selker refined his design, resulting in the Track. Point product5 for which IBM received US patents in 1. Pointing sticks were the dominant pointing device for laptops before the advent of the touchpad. During later years, they faced a decline in popularity as most laptop producing brands switched to touchpad favor, although certain brands including Lenovo and Dell still produce laptops with pointing sticks. Problem scopeedit. A Think. Pad Ultra. Nav featuring both a red pointing stick top right and a touchpad bottom leftSpace constraintsedit. A Dell Latitude E4. Both pointing devices were commonly featured together on Dell Latitude laptops beginning around the late 1. The pointing stick can be used in ultra compact netbooks9 where there would be no place for a touchpad. Finger motion reductioneditThe pointing stick is positioned such that the hands do not need to be removed from the home row to manipulate the mouse pointer. Continuous motioneditSome people find them more appealing for mobile gaming than a touchpad, because the track point allows infinite movement without repositioning. Fine positioningeditSome users claim it is easier to finely position the pointer than when using a touchpad because there is virtually no dead zone. This is because a users finger may run off the edge of a touchpad while positioning the pointer, requiring them to reposition their finger in order to continue. Haynes Paper Repair Manual 1997 Ford Explorer there. However, a fingers slipping off of the stick can lead to the accidental pressing of keys. ErgonomicseditSome users feel that pointing sticks cause less wrist strain because a user does not need to avoid resting wrists on a touchpad, usually located just below the keyboardcitation needed. One criticism is that because the pointing stick depends on the users applying pressure, it can cause hand cramps although this can be partly solved by setting the sensitivity higher and lifting the finger when the pointer is not being moved. Another criticism is that it stresses the index finger and may lead to repetitive strain injury. A number of ergonomic studies to compare trackpoint and touchpad performance have been performed.