摘要:
An instantaneous differential non-linearity DNL can be determined with a high accuracy with a reduced volume of computation and independently from a testing frequency while allowing an evaluation of factors in a compounded fault. A sine signal is applied to an AD converter 14 under test, a conversion output of which is divided into a sine component and a cosine component, with local maxima or minima aligned with each other. A square sum of the individual samples is formed, and a square root of the square sum is formed to determine an instantaneous amplitude (21). The amplitude of the sine wave signal is interleaved into a series of instantaneous amplitudes (20), and a first stage of the wavelet transform (46) is applied to the interleaved series of instantaneous amplitudes, with its output being oversampled to perform a second stage of wavelet transform (46′). A maximum amplitude of the transform output is detected by peak detector 23′. A detected value is used to estimate the DNL.
摘要:
A method for testing and measuring distortion in electrical devices is provided. For signal processing and carrying devices, a signal generator generates a signal having known phase, amplitude and frequency, which is provided both to a device under test and a measuring unit. The measuring unit measures the amplitude, frequency and phase rotation of an output of the device under test and provides these measured values to a suppression signal generator. The suppression signal generator generates a suppression signal which is added to the output signal from the device under test for suppressing the fundamental wave of the output signal. This suppressed signal is then provided to the measuring unit, for comparison with the original output signal from the device under test for determining distortion factors. For testing signal reproducing devices, such as compact disc players and video tape recorders, such a device reproduces a series of signals, for which a series of corresponding suppression signals is generated by the suppression signal generator. Each suppression signal is added to the corresponding original signal and eliminates the fundamental wave in each signal in the series. The suppressed signals are then compared with the orginal corresponding signals for determining distortion factors of the signal reproducing device.
摘要:
A substrate treatment apparatus includes: a nozzle having an opposing surface to be opposed to and spaced from a front surface of a substrate rotated by a substrate rotating unit, the nozzle further having an outlet port provided in the opposing surface to be opposed to a rotation center of the substrate; a second liquid supply control unit which controls the second liquid supplying unit to fill a space defined between the front surface and the opposing surface with the second liquid in a liquid filled state, and then stop supplying the second liquid to form a liquid puddle in the space; and a first liquid supply control unit which controls a first liquid supplying unit to spout a first liquid from the outlet port after the formation of the liquid puddle.
摘要:
An information processing program for controlling an information processing apparatus capable of executing at least first and second programs in parallel is provided. The information processing program includes: reception instructions for receiving a connection request for connection to an access point from the first and/or second program(s); determination instructions for comparing information of the received connection request with information of connection status to the access point, and thereby determining whether or not that one of the first and second programs which made the connection request is to be connected to the access point; and connection processing instructions for performing a process for connecting the program that made the connection request to the access point, based on the result of determination.
摘要:
A refrigerating apparatus, where refrigerant reaches a supercritical state in at least part of a refrigeration cycle, includes at least one expansion mechanism, an evaporator connected to the expansion mechanism, first and second sequential compression elements, a radiator connected to the discharge side of the second compression element, a first refrigerant pipe interconnecting the radiator and the expansion mechanism, a heat exchanger arranged to cause heat exchange between the first refrigerant pipe and another refrigerant pipe. Preferably, a heat exchanger switching mechanism is switchable so that refrigerant flows in the first refrigerant pipe through the first heat exchanger or in a heat exchange bypass pipe connected to the first refrigerant pipe. Alternatively, a heat exchanger switching mechanism increases refrigerant flowing through a second expansion mechanism when an air temperature at the evaporator and/or a compressed refrigerant temperature detected is higher and/or lower than predetermined values.
摘要:
A pre-record data storage device includes: a first recorder; a second recorder having a capacity larger than that of the first recorder; a face comparison processor that executes a face comparison process on a person's face detected from an image obtained by photographing the person; and a recording controller. The recording controller allows the first recorder to start pre-recording of the image of the person from a face detection time when the person's face is detected, and to finish the pre-recording at a matched time when matching is confirmed as a result of the face comparison process of the face comparison processor. The recording controller stores pre-recorded data from the face detection time to the matched time in the second recorder.
摘要:
Provided is a controller capable of preventing card makers from conducting unauthorized acts. The controller includes: a controller key storage unit configured to hold a controller key that has been embedded by a controller manufacturing device in advance; a decryption unit configured to receive encrypted media key information that has been generated by a key issuance center that is authorized and to decrypt the received encrypted media key by using the controller key, the encrypted key information generated through encryption of key information with use of the controller key; and an encryption unit configured to encrypt the decrypted media key again by using an individual key that is unique to the controller.
摘要:
There is provided a small-type semiconductor integrated circuit whose circuit area is small and whose wiring length is short. The semiconductor integrated circuit is constructed in a multi-layer structure and is provided with a first semiconductor layer, a first semiconductor layer transistor formed in the first semiconductor layer, a wiring layer which is deposited on the first semiconductor layer and in which metal wires are formed, a second semiconductor layer deposited on the wiring layer and a second semiconductor layer transistor formed in the second semiconductor layer. It is noted that insulation of a gate insulating film of the first semiconductor layer transistor is almost equal with that of a gate insulating film of the second semiconductor layer transistor and the gate insulating film of the second semiconductor layer transistor is formed by means of radical oxidation or radical nitridation.
摘要:
A plurality of the display panels (10A and 10B) are provided on a single substrate. For each of the plurality of the display panels (10A and 10B), there are provided data signal lines (11A and 11B), scanning signal lines (12A and 12B), data signal line drive circuits (20A and 20B) which drive the respective data signal lines (11A and 11B) and scanning signal line drive circuits (30A and 30B) which drive the respective scanning signal lines (12A and 12B). This allows achievement of lower electric power consumption and greater design freedom in a display device including a plurality of display panels which are provided on a single substrate.
摘要:
A washer nozzle (1) is provided with a nozzle body (2), a nozzle tip (11) which is mounted within the nozzle body (2), and a nozzle holder (15) having a head portion (9) for storing the nozzle body (2) and also has a supply portion (10) for supplying a cleaning liquid. The nozzle body (2) has a partitioning plate (4) configured to partition the spray orifice into two-tiered parts, and also has a guide portion (3) for guiding liquid spray. The nozzle body (2) of the washer nozzle (1) is configured so that the relative angle between upper liquid spray and lower liquid spray can be changed by making the length (a) of a guide region variable, the guide region extending in the direction of the center axis (c) of the nozzle body from the front end surface of the partition plate to the front end surface of the guide portion (3).