Abstract:
There is provided a method for requesting an electronic document based on XML in which the electronic document is created using a syntax defining a structure of a constructed electronic document. The electronic document request method can include creating a request document including an element name/attribute name based on a previously prescribed syntax without defining an additional syntax for requesting the electronic document, requesting a supply of the electronic document having an information on the element name/attribute name recorded in the request document, and receiving the electronic document including the information on the requested element name/attribute name.
Abstract:
In one embodiment, a method is provided for a power converter system comprising a switching circuit having a plurality of switches operable to be turned on and off to cause current to flow to deliver power to a load. The method includes the following: generating PWM control signals for turning on and off the switches in the switching circuit; sensing the direction of current flow, wherein the direction of current flow is related to a likelihood of shoot-through in the switching circuit; providing a current vector signal indicative of the direction of current flow; and enabling or disabling introduction of a dead time into the PWM control signals for the switches in the switching circuit in response the current vector signal.
Abstract:
The present invention relates to a converter and a driving method thereof. The converter includes a switch controller that controls switching operation of a master switch and a slave switch. The switch controller detects a center point of one switching operation period of the master switch by using an internal triangular wave having a period that is the same as that of the one switching operation period, and starts the switching operation of the slave switch at the detected point. The internal triangular wave signal has a waveform that varies within one period, and detects a crossing point of an average value of the internal triangular wave and the internal triangular wave as a center point of one switching operation period of the master switch.
Abstract:
The present invention relates to a diagnostic device and a lamp ballast circuit. The lamp ballast circuit includes a first power switch, a second power switch, a lamp driven according to switching operations of the first and second power switches, a controller for controlling the switching operations of the first and second power switches, and a diagnostic device. The diagnostic device senses a voltage waveform applied to the lamp to determine an end of lamp life (EOLL) condition and an over-voltage, senses a filament voltage of the lamp to determine a filament connection state of the lamp, and determines an over-voltage of a voltage applied to the controller.
Abstract:
Disclosed are a switch controller, a switch control method, a converter using the same, and a driving method thereof. A first voltage is generated by using a voltage that is input to an input terminal, and a soft start signal is generated by using the first voltage during a soft start duration. A switching operation is controlled by using the soft start signal during the soft start duration.
Abstract:
An imaging lens (LN) includes one or two lens blocks (BK), and an aperture stop (ape). The lens block (BK) includes a plane-parallel lens substrate (LS) and a lens (L) formed of different materials. In the imaging lens (LN), a first lens block (BK1) disposed at the most object-side exerts a positive optical power, and a conditional formula defined by the absolute difference between the index of refraction of a first lens substrate (LS1) and the index of refraction of a lens (L[LS1o]) contiguous with an object-side substrate surface of the first lens substrate (LS) is fulfilled.
Abstract:
In a network composed of a plurality of nodes wherein the nodes verify mutually and can communicate directly each other, when a certificate is revoked due to withdrawal of a node, the revoking node transmits a withdrawal notice to all the other existing nodes which can be connected directly and promotes them to update the connection tables and revocation lists held by the respective nodes.
Abstract:
An apparatus receives a base image and a reference image that are images picked up by two cameras provided on left and right. A weight coefficient determination portion determines a coefficient for cutting off a high-frequency region of combined phase spectrum of the base image and the reference image, based on an image pickup condition of the camera and texture information of the image in a window centered on a gaze point within the base image.
Abstract:
A high voltage integrated circuit contains a freewheeling diode embedded in a transistor. It further includes a control block controlling a high voltage transistor and a power block—including the high voltage transistor—isolated from the control block by a device isolation region. The high voltage transistor includes a semiconductor substrate of a first conductivity type, a epitaxial layer of a second conductivity type on the semiconductor substrate, a buried layer of the second conductivity type between the semiconductor substrate and the epitaxial layer, a collector region of the second conductivity type on the buried layer, a base region of the first conductivity type on the epitaxial layer, and an emitter region of the second conductivity type formed in the base region. The power block further includes a deep impurity region of the first conductivity type near the collector region to form a PN junction.