Display system and method of diminishing unwanted movement of a display element
View Patent ↗A method and apparatus for diminishing display transients and jitter. The method and system disclosed utilizes prior illumination and position histories in displaying and illuminating representations, and elements comprising the representations, on the display. Recognizing repeated representations, finding their prior and current positions, and determining if the difference in position is over a threshold value, diminishes the jitter by displaying the representation in the new position if over the threshold value, or, if it is not over the threshold value, then displaying it in the prior location. The illumination of an element at an intensity, which is based on prior illuminations and/or intensities of the element, diminishes the transients by avoiding flashing or flicker of transient illuminations.
1. A method of displaying a desired display element on a display over the course of at least several refresh cycles of the display in a manner to diminish unwanted wiggling of the display element, the method comprising the steps of:
determining a first display position for the display element;
displaying the display element on the display at the first display position;
determining a subsequent display position for the display element;
comparing the subsequent display position with the first display position;
maintaining the display element at the first display position if the subsequent display position differs from the first display position by less than a threshold amount; and
gradually changing the illumination or darkening of a pixel or pixels defining the display element if the subsequent display position differs from the first display position by more than a threshold amount, in order that the display element moves to the subsequent display position as the pixel or pixels expire the first display position while the display element ultimately reaches full illumination at the subsequent display position.
2. The method as claimed in claim 1 wherein the step of gradually changing further comprises setting the display element at the first display position to a sample value that is an average of a last sample value and a current sample value.
3. A method as claimed in claim 1 wherein the step of gradually changing further comprises
setting the display element at the first display position to a maximum value of the last sample value and the current sample value.
4. A method as claimed in claim 1 further comprising the following step:
decoding an incoming signal to uniquely identify the display element.
5. A method of displaying a desired display element on a display over the course of at least several refresh cycles of the display in a manner to diminish unwanted wiggling of the display element, the method comprising the steps of:
partially decoding an incoming signal to uniquely identify a symbol;
retrieving a fonted representation of the symbol from a storage device;
displaying the fonted representation as the display element;
determining a first display position for the display element;
displaying the display element on the display at the first display position;
maintaining the display element at the first display position if the subsequent display position differs from the first display position by less than a threshold amount; and
gradually changing the illumination or darkening of a pixel or pixels defining the display element if the subsequent display position differs from the first display position by more than a threshold amount, in order that the display element moves to the subsequent display position as the pixel or pixels expire the first display position while the display element ultimately reaches full illumination at the subsequent display position.
6. A system for use with a display to diminish unwanted visual wiggling when displaying display elements in response to receiving a plurality of signals over a plurality of refresh cycles, the system comprising:
an input device for generating digitized signals in response to processing the incoming signals;
a controller positioned to receive the digitized signals, the controller operative for determining first and second display positions associated with locations on the display for some of the digitized signals and confining some of the display signals to the first display position if the first and second position differ less than a select amount, the controller generating updated signals, and gradually changing the illumination or darkening of a pixel or pixels defining the display element if the subsequent display position differs from the first display position by more than a threshold amount, in order that the display element moves to the subsequent display position as the pixel or pixels expire the first display position while the display element ultimately reaches full illumination at the subsequent display position; and
an output device coupled to the controller and operative for transmitting the updated signals as display elements to the display.