Voltage or electro-magnetic field tablet and pointer, Computer Graphics

(a)  Voltage or Electro-Magnetic Field Tablet and Pointer: This has a grid of wires, embedded in the tablet surface along with various voltages or magnetic fields consequent to various coordinates. Intermediate positions in a cell can be interpolated too.

(b) Acoustic or Sonic (Radio-Wave) Tablet and Pointer: The sound of a spark on the tip of the stylus is picked up via strip microphones beside two edges of the tablet. By the arrival time of the sound pulse in the microphones, the perpendicular distances of the stylus tip by the two axes are identified. The acoustic process suffers from its inherent noisiness and also its susceptibility to interference from the other noise.

A combination of time-delay and electric pulses detection via a sensor in the stylus that is termed as Electro-acoustic Table is also accessible.

Posted Date: 4/2/2013 6:48:37 AM | Location : United States

Related Discussions:- Voltage or electro-magnetic field tablet and pointer, Assignment Help, Ask Question on Voltage or electro-magnetic field tablet and pointer, Get Answer, Expert's Help, Voltage or electro-magnetic field tablet and pointer Discussions

Write discussion on Voltage or electro-magnetic field tablet and pointer
Your posts are moderated
Related Questions
Write a C program to create a window of specified size and position and draw the following objects with dimensions of your choice, to fit within the window.   (a) A point  (b) A

Explain application areas of computer graphics in different areas.    Early computer graphics has only certain special capabilities such as straight lines circles and ellipses

Common Steps of Designing the Animation Sequence Common Steps of designing the animation sequence are as given: 1) Layout of Storyboard: Storyboard layout is the action ou

Potentially entering and leaving points - P E and P L The intersection point of the line and window might be classified either like potentially leaving or entering. Before g

Bresenham Line Generation Algorithm for Positive Slope (BLD algorithm for positive slope (0 - If slope is negative then utilize reflection transformation to transform the

Video controller : A Fixed area of the system memory controller for the frame buffer, and the video controller is given direct access to the frame – buffer memory, frame – buffer

what is mean by virtual reality?

Types of Polygon tables curves and surfaces Attribute tables: This table has object information as transparency, surface reflexivity, texture features of an object in the vi

Image Processing 1. How is sampling done? Explain quantization in digital image processing? 2. Explain in brief: (1) Image Subtraction (ii) Image averaging. 3. Explain in

What are the different ways of specifying spline curve?  Using a set of boundary conditions that are imposed on the spline. Using the state matrix that characteristics