Abstract: A bit plane generating system, a method of generating a bit plane and an integrated circuit incorporating the system or the method. In one embodiment, the bit plane generating system includes: (1) a memory configured to store pixel data pertaining to an image to be displayed and (2) bit plane decoding circuitry coupled to the memory and configured to transform the pixel data into at least a portion of a bit plane in accordance with a signal received from a sequence controller.

Abstract: A display system 100 includes a light source 110 and a color wheel 114. An optical section 112 is arranged to receive light from the light source 110 and to direct the light toward a color wheel 114. A digital micromirror device 122 is arranged to receive the light from the color wheel 114 and to direct image data toward a display. The image data includes an array of pixels arranged in rows and columns. The array of pixels is arranged as curved color bands during a first time period and rectangular color bands during a second time period. The second time period being concurrent with but of a shorter duration than the first time period.

Abstract: Disclosed embodiments reveal techniques for efficiently allocating time slots in a time-division multiplex (TDM) cycle among multiple channels of varying size, particularly when the channels do not all desire an integer number of time slots. TDM cycles can only allocate an integer number of time slots to each channel. So when at least one channel does not desire an integer number of time slots, then the disclosed embodiments allocate a number of time slots equal to the integer portion to each channel, rolling any fractional remainder over to the next cycle. This cumulative cyclical fractional summing process efficiently allocates time slots among the channels, allowing the average allocation per cycle to approach the true non-integer desired amount over time.

Abstract: A bit plane generating system, a method of generating a bit plane and an integrated circuit incorporating the system or the method. In one embodiment, the bit plane generating system includes: (1) a memory configured to store pixel data pertaining to an image to be displayed and (2) bit plane decoding circuitry coupled to the memory and configured to transform the pixel data into at least a portion of a bit plane in accordance with a signal received from a sequence controller.

Abstract: Disclosed embodiments reveal techniques for efficiently allocating time slots in a time-division multiplex (TDM) cycle among multiple channels of varying size, particularly when the channels do not all desire an integer number of time slots. TDM cycles can only allocate an integer number of time slots to each channel. So when at least one channel does not desire an integer number of time slots, then the disclosed embodiments allocate a number of time slots equal to the integer portion to each channel, rolling any fractional remainder over to the next cycle. This cumulative cyclical fractional summing process efficiently allocates time slots among the channels, allowing the average allocation per cycle to approach the true non-integer desired amount over time.

Abstract: A display system 100 includes a light source 110 and a color wheel 114. An optical section 112 is arranged to receive light from the light source 110 and to direct the light toward a color wheel 114. A digital micromirror device 122 is arranged to receive the light from the color wheel 114 and to direct image data toward a display. The image data includes an array of pixels arranged in rows and columns. The array of pixels is arranged as curved color bands during a first time period and rectangular color bands during a second time period. The second time period being concurrent with but of a shorter duration than the first time period.

Abstract: A display system 100 includes a light source 110 and a color wheel 114. An optical section 112 is arranged to receive light from the light source 110 and to direct the light toward a color wheel 114. A digital micromirror device 122 is arranged to receive the light from the color wheel 114 and to direct image data toward a display. The image data includes an array of pixels arranged in rows and columns. The array of pixels is arranged as curved color bands during a first time period and rectangular color bands during a second time period. The second time period being concurrent with but of a shorter duration than the first time period.

Abstract: A method and apparatus for selectively scaling portions of image data based on the intensity levels of historical image data. The selective scaling, or level expansion, provides improved images by increasing or decreasing the intensity of a portion of image pixels. Black level expansion reduces the intensity of dark pixels and is appropriate when a relatively large number of the image pixels have a high intensity level. White level expansion increases the intensity of bright pixels and is appropriate when a relatively large number of image pixels have a low intensity level. Level expansion is implemented by using histogram comparators 402 to compare the intensity of each pixel with a threshold, typically on a frame-by-frame basis. When an adequate number of pixels in each frame meet the threshold criteria, the level expansion is increased. Field accumulator 404 is used to determine whether and by how much the image data is scaled.

Abstract: A method and apparatus for selectively scaling portions of image data based on the intensity levels of historical image data. The selective scaling, or level expansion, provides improved images by increasing or decreasing the intensity of a portion of image pixels. Black level expansion reduces the intensity of dark pixels and is appropriate when a relatively large number of the image pixels have a high intensity level. White level expansion increases the intensity of bright pixels and is appropriate when a relatively large number of image pixels have a low intensity level. Level expansion is implemented by using histogram comparators 402 to compare the intensity of each pixel with a threshold, typically on a frame-by-frame basis. When an adequate number of pixels in each frame meet the threshold criteria, the level expansion is increased. Field accumulator 404 is used to determine whether and by how much the image data is scaled.

Abstract: A digital display device interface for a host system (12) and its display device (14) and peripherals. The interface has separate logical and physical levels, thereby making the interface independent of any hardware configuration or connector. The initialization logic level allows dynamic configuration of the system upon power up or initialization. The display data level (30) controls the video data sent for display in a continuous, full bandwidth data stream. The I/O data level (32) controls communications between peripheral devices (18a . . . 18x) connected to the display device (14) and the system (12).