Abstract: A method of storing data in a storage device having a probe to form perturbations in a storage medium of the storage device includes receiving input write data bits and encoding the input write data bits to form coded write data bits. Perturbations are formed in the storage medium by contacting a probe to the storage medium, the perturbations corresponding to the coded write data bits, wherein the coded write data bits provide a generally uniform distribution of the perturbations on the storage medium.

Abstract: A system for writing data using an electron beam to change the structure of a small section of a storage medium and includes at least one focused electron beam source. The duration of a write cycle of the focused electron beam source is controlled at least in part on an estimated or measured amount of charge transmitted by the focused electron beam source to the storage medium during the write cycle.

Abstract: A parallel data storage device includes a data storage medium having a first cluster and a second cluster. The first cluster includes a first patch and the second cluster includes a second patch. The parallel data storage device also includes a first reader for reading the first patch of the first cluster and a second reader for reading the second patch of the second cluster. A first multiplexer is used for addressing the first cluster while a second multiplexer is used for addressing the second cluster. The first and second readers are arranged in a single column such that the first reader is electrically connected to the first multiplexer and the second reader is electrically connected to the second multiplexer.

Abstract: One embodiment of an optical modulator includes a substrate, a reflective structure, and at least three thermally actuated supports that movably support said reflective structure on said substrate.

Abstract: A method of sensing dynamics associated with a device is disclosed. The method includes using at least one micro-machined electromechanical systems (MEMS) storage element of a memory module of the device as a motion sensor to detect motion associated with the device. The method further includes processing data output from the MEMS storage element to determine information relating to the dynamics of the device.

Abstract: An interconnect is described including a semiconductor substrate having opposing surfaces, including first and second insulated conductors for transmitting signals. A third conductor substantially surrounds and is electrically insulated from the first and second insulated conductors. Capacitance between the first insulated conductor and the third conductor is substantially equivalent to capacitance between the second insulated conductor and the third conductor. The first insulated conductor and the second insulated conductor are disposed between the opposing surfaces of the semiconductor substrate.

Abstract: A sensing device has a cantilever disposed with a medium which is movable relative to the cantilever, and a device associated with one of the cantilever and the medium, which is responsive to changes in electrical field between the medium and the cantilever caused by a distance between the medium and the cantilever changing.

Abstract: An interconnect is described including a semiconductor substrate having opposing surfaces, including first and second insulated conductors for transmitting signals. A third conductor substantially surrounds and is electrically insulated from the first and second insulated conductors. Capacitance between the first insulated conductor and the third conductor is substantially equivalent to capacitance between the second insulated conductor and the third conductor. The first insulated conductor and the second insulated conductor are disposed between the opposing surfaces of the semiconductor substrate.

Abstract: A circuit and method are provided for generating light to illuminate a subject such as a print medium for scanning using, for example, a contact image sensor. The circuit includes a light emitting diode and a variable current control circuit coupled to the light emitting diode. The variable current control circuit is configured to establish a current through the light emitting diode, the magnitude of the current being variable. The variable current control circuit includes a programmable current sink. Alternatively, the variable current control circuit may also include an offset current sink. The programmable current sink and the offset current sink (if included) are employed to establish the variable current through the light emitting diode.

Abstract: A circuit and method are provided for generating light to illuminate a subject such as a print medium for scanning using, for example, a contact image sensor. The circuit includes a light emitting diode and a variable current control circuit coupled to the light emitting diode. The variable current control circuit is configured to establish a current through the light emitting diode, the magnitude of the current being variable. The variable current control circuit includes a programmable current sink. Alternatively, the variable current control circuit may also include an offset current sink. The programmable current sink and the offset current sink (if included) are employed to establish the variable current through the light emitting diode.

Abstract: A circuit and method are provided for generating light to illuminate a subject such as a print medium for scanning using, for example, a contact image sensor. The circuit includes a light emitting diode and a variable current control circuit coupled to the light emitting diode. The variable current control circuit is configured to establish a current through the light emitting diode, the magnitude of the current being variable. The variable current control circuit includes a programmable current sink. Alternatively, the variable current control circuit may also include an offset current sink. The programmable current sink and the offset current sink (if included) are employed to establish the variable current through the light emitting diode.

Abstract: The present invention is directed to a system and methodology in which the stepper motor (or a DC motor/encoder combination) of an optical scanning device is replaced by a DC motor which receives feedback information from an extended photodetector used in the scanner, or a proximately close second photodetector. The photodetector of current scanners may be extended (or a second photodetector may be incorporated) to read a margin marking located on, or attached to, the scanner body and the resolution of the extended portion, or separate photodetector, may be increased to accurately capture positioning information. The photodetector of the present invention detects the margin marking, typically located outside of the document scanning area, to determine positional information which is used by the processor to accurately determine position.

Abstract: The present invention is directed to a system and methodology in which the stepper motor (or a DC motor/encoder combination) of an optical scanning device is replaced by a DC motor which receives feedback information from an extended photodetector used in the scanner, or a proximately close second photodetector. The photodetector of current scanners may be extended (or a second photodetector may be incorporated) to read a margin marking located on, or attached to, the scanner body and the resolution of the extended portion, or separate photodetector, may be increased to accurately capture positioning information. The photodetector of the present invention detects the margin marking, typically located outside of the document scanning area, to determine positional information which is used by the processor to accurately determine position.

Abstract: An available input of to a motor controller is used to measure the motor power supply voltage. Typically, a scaled down version of the voltage is sensed. The microprocessor is used to calculate the motor control current, in that case, is then calculated from the scaled down version. A scale factor that depends upon the sensitivity of the motor current to the motor supply voltage is calculated by the microprocessor. Driving parameters in the controller are then adjusted to account for the scale factor. In a preferred embodiment, the driving parameters are PWM parameters, and the microprocessor multiplies the measured power supply voltage to obtain a scale factor that can then be multiplied by the nominal PWM values to obtain the new PWM values.

Abstract: A circuit and method are provided for generating light to illuminate a subject such as a print medium for scanning using, for example, a contact image sensor. The circuit includes a light emitting diode and a variable current control circuit coupled to the light emitting diode. The variable current control circuit is configured to eastablish a current through the light emitting diode, the magnitude of the current being variable. The variable current control circuit includes a programmable current sink. Alternatively, the variable current control circuit may also include an offset current sink. The programmable current sink and the offset current sink (if included) are employed to establish the variable current through the light emitting diode.

Abstract: An available input of to a motor controller is used to measure the motor power supply voltage. Typically, a scaled down version of the voltage is sensed. The microprocessor is used to calculate the motor control current, in that case, is then calculated from the scaled down version. A scale factor that depends upon the sensitivity of the motor current to the motor supply voltage is calculated by the microprocessor. Driving parameters in the controller are then adjusted to account for the scale factor. In a preferred embodiment, the driving parameters are PWM parameters, and the microprocessor multiplies the measured power supply voltage to obtain a scale factor that can then be multiplied by the nominal PWM values to obtain the new PWM values.

Abstract: Embodiments of a electrophotographic printer with modular scanner/copier attached are shown and described, each embodiment having a paper exit system for collating convenience copies separate from the printed pages from a host device's job, for example, a computer word-processing job. The exit system includes a first paper path and a second paper path joining at a junction, with a rotating member that operates in the junction to direct the paper to the first path or to the second path, either by contacting and turning the paper or by allowing the paper to proceed unobstructed. Preferably, one of the paths is a generally horizontal path, for allowing printed/copied papers to stack horizontally on a table surface or tray. Preferably, one of the paths is a generally vertical path, for allowing the papers to accumulate in a generally vertical storage slot.

Abstract: A printed circuit assembly (PCA) having improved reference plane isolation for reducing electromagnetic and communication Input/Output (I/O) emissions includes a reference plane layer having a plurality of apertures patterned therein. A component layer of the PCA I/O communication circuitry and non I/O circuitry thereon. In the preferred embodiment, the apertures are aligned in a double row of substantially single file patterns on the reference plane. The single file patterns are positioned substantially parallel to and adjacent each other. Also, each aperture in each single file pattern is offset staggered with respect to a corresponding aperture in the adjacent single file pattern. When the reference plane layer and component layer are disposed in the PCA, the patterned apertures are placed relative to the component layer in a manner such that they substantially separate the non I/O circuitry from the I/O communication circuitry for reducing I/O communication emissions.