Abstract: A method and system for performing error diffusion are disclosed. An ordered set of pixels, including a pixel intensity value for each pixel, is received. Each pixel intensity value includes a value within a range from a low value to a high value, inclusive. An initial error value is also received. Based on the pixel intensity values and the initial error value, a pixel value for each pixel and an updated error value are computed substantially simultaneously with each other.

Abstract: The embodiments describe calculating and store scaling information based on processing input binary image data. By manipulating data that is received in binary format, the most cost effective method for scaling may be chosen. The input image data is scanned, a resolution (e.g., for display or output) is determined and a scaling method is determined. If the input binary image data needs to be scaled down to a smaller resolution, the binary image data is processed and scaled and then converted to grayscale image data. If the image data must be scaled to a larger resolution, the input binary image data is first converted to grayscale image data before processing using a segmentation tag-based scaling method. The scaled image data may then be output to an output device, such as a display, printer, or image output terminal.

Abstract: A method and system for performing error diffusion are disclosed. An ordered set of pixels, including a pixel intensity value for each pixel, is received. Each pixel intensity value includes a value within a range from a low value to a high value, inclusive. An initial error value is also received. Based on the pixel intensity values and the initial error value, a pixel value for each pixel and an updated error value are computed substantially simultaneously with each other.

Abstract: A method and Apparatus for protection of semiconductor micromechanical devices that use circuits with dynamic logic addressing is disclosed. In one exemplary embodiment of the invention, a fail-safe circuit is provided for an ink jet print head integrated circuit which prevents a catastrophic consequence of the dynamic logic addressed integrated circuit losing its charge.

Abstract: A method and apparatus are providing for extending the drop volume control of a thermal ink jet print head. The print head has a plurality of drop ejectors, each of the plurality of drop ejectors has a heating element actuatable in response to input signals to eject an ink droplet from the print head. The method includes the steps of applying a plurality of print signals to the print head, the plurality of print signals corresponding to an image for the ink jet assembly to create, applying at least one pulse signal to the print head, and sequentially using the at least one pulse signal and the plurality of print signals to activate the heating elements so that the change in current remains small.

Abstract: A method and Apparatus for protection of semiconductor micromechanical devices that use circuits with dynamic logic addressing is disclosed. In one exemplary embodiment of the invention, a fail-safe circuit is provided for an ink jet print head integrated circuit which prevents a catastrophic consequence of the dynamic logic addressed integrated circuit losing its charge.

Abstract: Sensor array architectures for both analog and digital sensor arrays adapted for single chip applications or abutment with other like arrays to form a composite scanning array, the architecture providing a sensor array in which the array video signal processing circuits, clock circuits, etc. are integrated onto the same chip as the sensor array itself and dark reference sensors are located in-line or apart from the image scanning sensors to avoid gaps in the scan line when several sensor arrays are assembled together.

Abstract: A color image sensor array for both synchronous and asynchronous operation, especially adapted for using fabricated full width arrays, in which the chip has three photosites per pixel. The control circuit for charge transfer uses several components in common and requires no memory buffers to obtain full color information for each pixel on a page being scanned.