Abstract: A pen-shaped position indicator is configured to capacitively couple with a sensor surface of a position detection apparatus. The indicator includes a pen-shaped body; a coil; a driving power production circuit configured to produce a DC voltage from an induced signal in the coil by a wireless interaction with a charging device; a signal production circuit connected to the driving power production circuit and configured to generate a signal based on the DC voltage to form a capacitive relationship between the pen-shaped body and the position detection apparatus; a first electrode; and a second electrode. The first and second electrodes are configured to form first and second capacitive relationships with the sensor surface, respectively, to generate detection signals in the sensor surface from which a first detection signal and a second detection signal distinguishable from each other are extracted and used to obtain angle information of the pen-shaped position indicator.

Abstract: The present disclosure relates to a lighting apparatus, a driving circuit and driving method thereof. The lighting apparatus comprises a plurality groups of lighting elements and a driving circuit. Each group of lighting elements comprises at least one lighting element, each lighting element in a same group having a cathode connected to a common cathode node. The driving circuit comprises a plurality of voltage sources, each having a terminal connected to an anode of a respective lighting element in each group of lighting elements; and a plurality of current sources, each having a terminal connected to the common cathode node of a respective group of lighting elements.

Abstract: Systems are described for transmitting and receiving signals in an active stylus for a capacitive touch sensor, for which the systems have at least one circuit for receiving a current from an electrode and for transmitting a voltage onto the electrode. The systems include components for receiving the current in a receiving mode, a switch, and a switchmode power supply circuit having at least a transformer and a diode, for which the diode is coupled to the transformer. In a transmission mode, there is means for electrically isolating at least some of the components configured for receiving the current in the receiving mode from the voltage formed across the stray capacitance. In the receiving mode, there is a means for electrically isolating at least some of the components configured for receiving the current in the receiving mode from an inductance of the transformer in the switchmode power supply circuit.

Abstract: Methods, systems, and apparatus relate to capacitive touch sensors with a fine-pointed, active stylus. The active stylus is configured to receive a signal from the capacitive touch sensor for synchronizing a time base of the stylus with the capacitive touch sensor. The active stylus is configured to receive a signal from a matrix of the capacitive touch sensor to measure a first position along one axis, and transmit a signal from the single electrode of the stylus to the matrix to indicate a second position of the stylus along another axis of the matrix. The stylus can transmit the received signal to report the first position of the stylus.

Abstract: A semiconductor device including segments, a power supply pad and conductive patterns is provided. Each segment includes driving units for discharging a liquid. Each driving unit includes a driving circuit and an element driven by the driving circuit to apply discharging energy to the liquid. The conductive pattern includes a first conductive portion connected to the power supply pad, a second rectangular conductive portion, a third conductive portion connected to the driving portions, and a connection portion which connects the second and third conductive portions. These conductive portions elongate in a first direction. In a second direction, a length of the second conductive portion is larger than a length of the first conductive portion. The second conductive portion is connected to the first conductive portion at a first corner and the connection portion at a second corner diagonal to the first corner.

Abstract: A light emitting element array chip includes first and second light emitting element rows including light emitting elements that are arranged in a main scanning direction in a zigzag, a first light emission signal line transmitting a light emission signal for allowing the light emitting elements forming the first light emitting element row to emit light, and a second light emission signal line transmitting a light emission signal for allowing the light emitting elements forming the second light emitting element row to emit light, wherein the first light emission signal line or the second light emission signal line is arranged in the main scanning direction between the first light emitting element row and the second light emitting element row and is provided in regions between the light emitting elements forming the first light emitting element row and between the light emitting elements forming the second light emitting element row.

Abstract: A drive device for outputting a drive signal for driving a plurality of light emitting elements time-divisionally, the drive device includes a plurality of input terminals receiving input of a drive control signal for the light emitting elements, and a plurality of output terminals connected to the light emitting elements, for outputting the drive signal based on the drive control signal input into the input terminals, in which the input terminals and the output terminals are arranged substantially in a line.

Abstract: A semiconductor device including segments, a power supply pad and conductive patterns is provided. Each segment includes driving units for discharging a liquid. Each driving unit includes a driving circuit and an element driven by the driving circuit to apply discharging energy to the liquid. The conductive pattern includes a first conductive portion connected to the power supply pad, a second rectangular conductive portion, a third conductive portion connected to the driving units, and a connection portion which connects the second and third conductive portions. These conductive portions are elongated in a first direction. In a second direction, a length of the second conductive portion is greater than a length of the first conductive portion. The second conductive portion is connected to the first conductive portion at a first corner and to the connection portion at a second corner diagonal to the first corner.

Abstract: One of an electric wiring substrate and a retaining member includes a section having an absorptance with respect to a laser beam, and the other one of the electric wiring substrate and the retaining member includes a section having a transmittance with respect to the laser beam. The electric wiring substrate and the retaining member are welded to each other by irradiation with a laser beam. At this time, the electric wiring substrate and the retaining member are welded to each other at least at a part of an outer peripheral section of the electric wiring substrate.

Abstract: A printing apparatus is provided that precisely control the transition of an electrical signal that causes a printing substance to be deposited. In particular, in some embodiments, a circuit is configured to control the application of a firing pulse to a printing element, and the printing element is configured to control the application of a printing substance. The circuit in this embodiment is configured to condition or control the transition of the firing pulse from the first state to the second state such that current through the printing element dissipates to zero over a period of time that is neither too fast nor too slow.

Abstract: An image-forming element for a printing apparatus which includes a support structure with a plurality of electrodes of a first type disposed thereon and an electronic control unit for energizing the electrodes. The image-forming element further includes a plurality of electrodes of a second type, each one of said electrodes of the second type being arranged for interacting capacitively through a dielectric layer with a number of electrodes of the first type, forming a group, the electronic control unit containing a first series of drivers for energizing the electrodes of the first type, each one of said drivers being suited for energizing one electrode of the first type within each group and a second series of drivers for energizing individually the electrodes of the second type, the first and second series of drivers being arranged such that the electrodes of the first type can be individually activated, image wise.

Abstract: The wiring board for an inkjet head electrically connected to a piezoelectric element for discharging ink from the inkjet head and installed with a drive element for applying a drive voltage between an individual electrode of said piezoelectric element and a common electrode opposing said individual electrode, comprises a first ground wire which is electrically connected to a ground of said drive element, and a second ground wire which is electrically connected to the common electrode of said piezoelectric element, wherein said first ground wire and said second ground wire are electrically separated.

Abstract: An integrated circuit for an ink jet printer includes a state machine with numerous sequenced logic circuits to generate buffered control signals from the tachometer input. A counter counts one of the buffered control signals from the state machine forming a write address. A synchronous up-down counter receives a cue delay value when the up-down counter receives a buffered control signal thereby forming a delayed count. An adder receives the write address and the delayed count and generates a read address. A comparator compares the delayed count to the cue delay value and sets a comparator output depending upon whether the delayed count is greater than or less than the cue delay value. A multiplexer receives the read and write addresses and the buffered control signals and sends a single to RAM. A logic circuit receives the buffered control signals and outputs a delayed cue signal to the printing system.

Abstract: A head device is for writing an electrostatic latent image on an image carrier of an image forming apparatus which is movable in a first direction. In the head device, a plurality of writing electrodes are arrayed on a substrate in a second direction perpendicular to the first direction to form a plurality of electrode arrays which are arranged in the first direction. The writing electrodes are brought into contact with the image carrier with a flexibility of the substrate. A head driver is disposed on the substrate. A plurality of wirings are extending in the first direction to connect the head driver and the respective writing electrodes to supply writing voltages from the head driver to the writing electrodes. At least one of the wirings extended through one of the writing electrodes in one of the electrode arrays is placed between adjacent ones of the writing electrodes in another one of the electrode arrays.

Abstract: A glass substrate printed wiring board is used as the printhead for electric paper. Printing electrodes are formed at the edge of the glass substrate. Signals are generated by a driver circuit and conducted by traces to the electrodes to generate an electric field to rotate the bichromal rotating elements of the electric paper to form black or white pixels.

Abstract: A method and apparatus relating to a unique printhead configuration is disclosed. The printhead configuration is based on a coplanar arrangement of two sets of electrodes. The electrodes are electrically separated from each other by a dielectric layer, and together create a matrix of charge generating sites. Such a printhead has a very low internal capacitance and therefore is suitable for high speed and high resolution printing.

Abstract: A light-emitting device includes a number of light-emitting element groups each including a plurality of light-emitting elements, a first drive device for driving the plurality of light-emitting elements in succession, and a number of resistance sections, each separately connected to each of the light-emitting element groups. The resistance section is connected in common to the plurality of light-emitting elements. The light-emitting device further includes a second drive device for driving the light-emitting element groups.

Abstract: Odd- and even-numbered conductors of recording electrodes, for example, first or second recording electrodes, are divided in the direction in which the conductor at the time of winding are stacked up to form different layers so as to increase the distance between the conductors of the adjoining recording electrodes and reduce the floating electrostatic capacitance.

Abstract: This invention relates to the charging member portion of an image forming apparatus. A plurality of charging members are disclosed that maintain a uniform spacing between a charge-receiving member and the discharging portion of the charging members' electrodes despite surface irregularities and surface waviness on the charge-receiving member. One charging member is in the form of a flexible sheet provided with ventilation holes in a non-contacting portion thereof, permitting the air produced by the rotation of the charge-receiving member to escape through the holes to suppress the lifting of the charging member. Pressure fins can be added to the charging member on the downstream of the ventilation holes for further suppressing any lifting. Another charging member includes a semiconductive member or a electret member on at least the surface of the charging member on the side opposite the charge-receiving member. This permits the charging member to be electrostatically attracted to the charge-receiving member.

Abstract: An apparatus and method provide direct electrostatic printing onto an information carrier. Computer-generated electronic signals define an image and are converted to a pattern of electrostatic fields to selectively control the deposition of charged toner particles in an image configuration directly onto the information carrier. The electrostatic fields are applied via a set of print electrodes which selectively permit or restrict the transport of the charged toner particles from a particle source toward the information carrier. Periodically variable deflection potentials are applied to a set of deflection electrodes to modify the trajectories of the toner particles as they are transported toward the information carrier to direct the toner particles in a direction transverse to the direction of the movement of the information carrier.

Abstract: A multi-needle recording head has retaining members within an electrode support block, each retaining member serving to retain a recording electrode wire. The retaining members can not only lessen a stress generated by the hardening and contracting of a resin, but also prevent generation of defects such as cracks in the vicinity of recording electrodes on a head surface. Further, such multi-needle recording head is obtained by retaining the recording electrode wires by the retaining members, each retaining member having a pressure sensitive adhesive agent or an adhesive arranged at least on a surface thereof contacting the recording electrode wire, with the recording electrode wires wound around the winding jig before the recording electrode wires are cast into the electrode support block made of the electrically insulating resin.

Abstract: A printed wire electrostatic printing transducer having two or more rows of styli together defining the recording stylus configuration and an associated method for producing such a transducer by printed circuit techniques. Provision is made for the integration of counter electrodes and multiplexing circuitry with the transducer in a single package.

Abstract: An image-forming element including a cylinder having at its outer periphery a dielectric surface layer and, beneath the surface layer, a number of electrodes insulated from one another, the electrodes being connected to elements within the cylinder for selectively controlling the electrodes in accordance with an image pattern to be formed, this connection being established by securing in at least one opening in the wall of the cylinder control device which, on the one hand, are connected to electronic control components within the cylinder and, on the other hand, are connected to the electrodes on the periphery of the cylinder. An image-forming element thus prepared can be used in a printing device for reproducing information.

Abstract: This invention is directed to a method of forming developer through-holes in a print head which has a plurality of first electrodes and a plurality of second electrodes arranged in matrix with an insulating layer sandwiched therebetween. A main portion of each of the first electrodes is comprised of a couple of electrodes disposed in parallel with each other at a specified gap between them, and a main portion of each of the second electrodes is comprised of a couple of electrodes disposed in parallel with each other at a specified gap between them. An intersecting portion of each of the first electrodes and each of the second electrodes is irradiated with laser light to form a hole in the insulating layer. Thus, the gap between the parallel electrodes of each of the first electrodes, the hole formed in the insulating layer, and the gap between the parallel electrodes of each of the second electrodes together define a developer through-hole.

Abstract: The pulse width modulation circuit in the image forming apparatus of the invention comprises a discriminate circuit, an on-time control circuit, and an amplification circuit. The discriminate circuit determines whether an imaging potential or a non-imaging potential is applied to adjoining control electrodes. The on-time control circuit controls an applying time of the imaging potential to the control electrodes according to a result determined by the discriminate circuit, that is, according to the kind of potential applied to adjoining control electrodes. The amplification circuit amplifies the output from the on-time control circuit to a suitable control voltage which is sent to the control electrode. Therefore, it is possible to pass a predetermined amount of the toner particles through the desired aperture, even if the voltage applied by each control electrode is different.