Abstract: An apparatus for performing operations using low power, including control circuitry; a radio frequency (RF) circuit for receiving RF signals at one or more frequencies; an internal power source; and switching circuitry coupled between the control circuitry and the internal power source, the switching circuitry having a control terminal coupled to an output of the RF circuit. The apparatus is configured in a normal mode of operation and an off mode of operation in which the apparatus is powered down, and wherein in the off mode of operation energy from the received RF signals control a state of the switching circuitry to selectively couple the internal power source with the control circuitry for performing one or more operations.

Abstract: An apparatus for shipping a device containing a circuit, including a bag sized for holding the device; and an antenna connected to the bag, the antenna having a first end for coupling to the circuit of the device when the device is in the bag so as to allow for radio frequency (RF) communication with the device while the device is in the bag. Separation of the device from the bag causes the antenna to be disconnected from the circuit of the device.

Abstract: An apparatus for shipping a device containing a circuit, including a bag sized for holding the device; and an antenna connected to the bag, the antenna having a first end for coupling to the circuit of the device when the device is in the bag so as to allow for radio frequency (RF) communication with the device while the device is in the bag. Separation of the device from the bag causes the antenna to be disconnected from the circuit of the device.

Abstract: An apparatus for performing operations using low power, including control circuitry; a radio frequency (RF) circuit for receiving RF signals at one or more frequencies; an internal power source; and switching circuitry coupled between the control circuitry and the internal power source, the switching circuitry having a control terminal coupled to an output of the RF circuit. The apparatus is configured in a normal mode of operation and an off mode of operation in which the apparatus is powered down, and wherein in the off mode of operation energy from the received RF signals control a state of the switching circuitry to selectively couple the internal power source with the control circuitry for performing one or more operations.

Abstract: An application specific integrated circuit (ASIC) is configured to perform image processing tasks on a printer or other multi-function device. The ASIC includes a processor, a dedicated cache memory, a cache controller and additional Static Random Access Memory (SRAM) normally employed in image processing tasks. This additional SRAM may be dynamically allocated as a cache memory when not otherwise occupied.

Abstract: A scanning operation is synchronized with the motion of a scan mechanism. Encoder signals indicative of a position of the scan mechanism relative to a scan platen or an object being scanned are received. These encoder signals may include a single channel phase signals are channel A and channel B phase signals. Transitions of the encoder signals are detected. Scan pulses for triggering a scan operation by a scan element are generated based on transitions of the encoder signals. Differences in the encoder signal resolution and a desired scan resolution are compensated for in the generation of the scan pulses. A transfer signal is generated in synchronization with the scan pulses for controlling output of data from the scan element. Variations of the velocity of the scan mechanism cause variations of the frequency at which the scan pulses are generated.

Abstract: A scanning operation is synchronized with the motion of a scan mechanism. Encoder signals indicative of a position of the scan mechanism relative to a scan platen or an object being scanned are received. These encoder signals may include a single channel phase signals are channel A and channel B phase signals. Transitions of the encoder signals are detected. Scan pulses for triggering a scan operation by a scan element are generated based on transitions of the encoder signals. Differences in the encoder signal resolution and a desired scan resolution are compensated for in the generation of the scan pulses. A transfer signal is generated in synchronization with the scan pulses for controlling output of data from the scan element. Variations of the velocity of the scan mechanism cause variations of the frequency at which the scan pulses are generated.

Abstract: Shifting of data out of at least one image sensor is controlled by a programmable sequencer table. Sampling of the shifted data is also controlled by the sequencer table. The sequencer table is programmed with at least one pattern for controlling shifting of data out of the image sensor and sampling of the shifted data. The pattern programmed into the sequencer table depends upon the image sensor. Output of the pattern from the sequencer table is controlled by a sequencer control block. The sequencer table and the sequencer control block may be included in a single application specific integrated circuit which may be implemented in, e.g., a scanner. This provides flexibility in the selection of image sensors, without requiring different circuits for controlling shifting of data out of the image sensors.