Abstract: An encoder operable to filter audio signals into a plurality of frequency band components, generate quantized digital components for each band, identify a potential for pre-echo events within the generated quantized digital components, generate an approximate signal by decoding the quantized digital components using inverse pulse code modulation, generate an error signal by comparing the approximate signal with the sampled audio signal, and process the error signal and quantized digital components. The encoder operable to process the error signal by processing delayed audio signals and Q band values, determining the potential for pre-echo events from the Q band values, and determining scale factors and MDCT block sizes for the potential for pre-echo events.

Abstract: A solid desiccant cooling system comprising a common intake delivering air (19) to a first pathway (21) for air to be conditioned, and a second pathway (31) for regeneration air and structure (24) retaining a mass of solid desiccant for cyclic movement between a first location (24a), in which the solid desiccant lies in the first pathway (21) for dehumidifying the air to be cooled by adsorption of moisture to the desiccant, and a second location (24b) in which the solid desiccant lies in the second pathway (31) for the regeneration air to take up moisture therein as water vapor. The second pathway has an air heater arrangement (35) upstream of the second location (24b) for heating the regeneration air and the first pathway (21) has an air cooler arrangement (25) independent of the air heater arrangement (35) downstream of the first location (24a).

Abstract: A solid desiccant cooling system comprising a common intake delivering air (19) to a first pathway (21) for air to be conditioned, and a second pathway (31) for regeneration air and structure (24) retaining a mass of solid desiccant for cyclic movement between a first location (24a), in which the solid desiccant lies in the first pathway (21) for dehumidifying the air to be cooled by adsorption of moisture to the desiccant, and a second location (24b) in which the solid desiccant lies in the second pathway (31) for the regeneration air to take up moisture therein as water vapour. The second pathway has an air heater arrangement (35) upstream of the second location (24b) for heating the regeneration air and the first pathway (21) has an air cooler arrangement (25) independent of the air heater arrangement (35) downstream of the first location (24a).

Abstract: In the case of printing at high addressability, where the cell size is smaller than the spot size, an image can be decimated in a manner that will limit the large accumulation of printed material. The proper decimation of the image will depend on the spot size, the physics of drop coalescence and the addressability during printing. A simple method of using concentric decimation is disclosed herein to enable this process.

Abstract: In the case of printing at high addressability, where the cell size is smaller than the spot size, an image can be decimated in a manner that will limit the large accumulation of printed material. The proper decimation of the image will depend on the spot size, the physics of drop coalescence and the addressability during printing. A simple method of using concentric decimation is disclosed herein to enable this process.

Abstract: A drop generator having a via structure configured for electrical and fluidic interconnection. The via structure includes an electrically conductive layer and an electrically insulating layer disposed on the electrically conductive layer.

Abstract: In the case of printing at high addressability, where the cell size is smaller than the spot size, an image can be decimated in a manner that will limit the large accumulation of printed material. The proper decimation of the image will depend on the spot size, the physics of drop coalescence and the addressability during printing. A simple method of using concentric decimation is disclosed herein to enable this process.

Abstract: In the case of printing at high addressability, where the cell size is smaller than the spot size, an image can be decimated in a manner that will limit the large accumulation of printed material. The proper decimation of the image will depend on the spot size, the physics of drop coalescence and the addressability during printing. A simple method of using concentric decimation is disclosed herein to enable this process.

Abstract: A via structure configured for electrical and fluidic interconnection, and including an electrically conductive layer and an electrically insulating layer disposed on the electrically conductive layer.

Abstract: A drop generator having a via structure configured for electrical and fluidic interconnection. The via structure includes an electrically conductive layer and an electrically insulating layer disposed on the electrically conductive layer.

Abstract: A method of jet-printing smooth micro-scale features is presented. The desired feature prior to being printed is masked by various decimation filters and the decimation is performed at various pitches. The subsequently printed image is then scanned and analyzed to determine the roughness of the lines. The optimum decimation pitch is determined by the feature that exhibits the least amount of droplet spreading and has the lowest edge roughness. The optimum decimation pitch may also be calculated from the material properties and the dynamics of fluids.

Abstract: In the case of printing at high addressability, where the cell size is smaller than the spot size, an image can be decimated in a manner that will limit the large accumulation of printed material. The proper decimation of the image will depend on the spot size, the physics of drop coalescence and the addressability during printing. A simple method of using concentric decimation is disclosed herein to enable this process.

Abstract: An ink delivery system for acoustic ink printheads is provided. The relatively compact sealless system provides a high speed, pulseless and uniform flows of ink through the acoustic ink printheads. The system includes a single motor, a multi-head pump, multiple ink reservoirs with ink filters, and ink level sensing means. The system also includes a mechanism for maintaining ink pressure in the printhead independent of the volume of ink in the reservoir, the amount of filter blockage, or the absolute ambient pressure. As an option, the system also includes a segmented manifold for the printhead to deliver, for example, multiple colors of ink to a single printhead.

Abstract: This invention relates to a method and apparatus for stitching print swaths in an image-rendering device such as an acoustic ink printer. More particularly, the invention is directed to a method implemented in an apparatus to reduce the visual artifact caused by inaccurate paper advance between neighboring swaths of an ink emitter printhead. The method includes the provision of a “puzzle cut” or “zipper” edge between swaths. In this regard, the image is divided into swaths and the edges thereof are dithered to vary the depth of the cut in accordance with the expected paper advance accuracy and other printing characteristics such as noise and variations in the width of print swaths for different printheads.

Abstract: The present invention describes a method of extending the color gamut of a colored printing ink through the use of a color gamut extending agent or ink. The present method is suitable for use in any printing method such as ink jet printing, and, in particular, acoustic ink printing (AIP).