摘要:
An automatic gain control device includes an amplifier which amplifies an input signal based on a gain control signal, and outputs an amplified signal, a converter which converts the amplified signal into a converted signal having a value corresponding to an absolute value of the amplified signal, a peak detector which removes, during a peak detection period, from values of the converted signal, a predetermined number of values which include a maximum value, and determines a peak level of the converted signal after the removing, an error calculator which calculates an error between the peak level and a reference signal, and outputs the error as an error signal, and a gain controller which updates the gain control signal based on the error signal, and outputs an updated gain control signal.
摘要:
An automatic gain control device includes amplifiers cascaded, each having a variable gain; level measurement portions respectively corresponding to the amplifiers, where each of the level measurement portions measures a level of an output signal of a corresponding one of the amplifiers in a level measurement period indicated by a level measurement signal; error calculators respectively corresponding to the level measurement portions, where each of the error calculators compares a level measured by a corresponding one of the level measurement portions with a threshold which is set so that a corresponding one of the amplifiers will not saturate, and outputs a comparison result as an error signal; a gain computation section which updates one of the gains of the amplifiers at a time corresponding to a gain update signal, based on the error signals; and an operation controller which generates the level measurement signal and the gain update signal.
摘要:
Radio-frequency receiver contains a plurality of oscillation circuits that generates an oscillation frequency higher than that of digital broadcasting signals, selective switching circuit that selects two out of the oscillation circuits for signal output, and first and second frequency-divider sections that provide the signals with frequency dividing. The receiver receives two channels in the digital broadcasting signals at the same time by selection of oscillation signals and frequency dividing in the first and the second frequency-divider sections under the control of PLL controller.
摘要:
An electrical junction box includes a main body, having a contain portion for containing electric function components therein, a lid member, covering an open part of the main body, a fixing leg, provided so as to extend from a side wall of the main box being near a butting area in which the lid member is engaged with the main body, and the fixing leg mounted to an exterior structure and a water prevention wall, provided on an upper face of a base part of a the fixing leg so as to prevent an intrusion of water into the butting area.
摘要:
The present invention relates to a blood vessel wall analyzing apparatus provided with a structure enabling accurate measurement of plaque components in a blood vessel wall in a state that reduces the burden on a patient. In the blood vessel wall analyzing apparatus (1), measurement light is illuminated onto a measured portion within a blood vessel such as a carotid artery (C) from a light illuminating unit (30) provided outside the blood vessel, while light from the measured portion is detected in a light receiving unit (40) provided outside the blood vessel. Thus, since the status of the blood vessel wall can be analyzed without inserting an apparatus involved in measurement into the blood vessel, the burden on the patient is reduced during measurement. In addition, as a result of carrying out measurement using near infrared light (a light component in the wavelength range of 780 nm to 2750 nm) that exhibits characteristics that differ according to the compositions of substances such as plaque adhered within the blood vessel, analysis can be carried out that distinguish compositions such as plaque using an analyzing apparatus provided outside the blood vessel.
摘要:
A pair of side frames extends longitudinally away from each other in a vehicle width direction, which includes a closed cross section formed by an outer panel having a U-shaped cross section with its vehicle's inward side opening and an inner panel having a U-shaped cross section with its vehicle's outward side opening. A cab-mount bracket is provided on a vehicle-outward side of a front portion of the side frame to support a cabin. The cab-mount bracket includes an upper portion which is joined to a side face of a side portion of the outer panel and extends in an outward direction, and a lower portion which includes an extension portion extending in a vehicle inward direction beyond the side face of the outer panel and be joined to a lower face of a bottom portion of the inner panel.
摘要:
Radio-frequency receiver contains a plurality of oscillation circuits that generates an oscillation frequency higher than that of digital broadcasting signals, selective switching circuit that selects two out of the oscillation circuits for signal output, and first and second frequency-divider sections that provide the signals with frequency dividing. The receiver receives two channels in the digital broadcasting signals at the same time by selection of oscillation signals and frequency dividing in the first and the second frequency-divider sections under the control of PLL controller.
摘要:
A receiver includes a frequency controller coupled to an input terminal of a sampling signal generator, and the frequency controller controls a frequency of a sampling signal based on a signal supplied from a positional information acquiring section. This structure allows eliminating a detection of an interfering signal, and controlling the frequency of the sampling signal supplied to an AD converter based on the signal from the positional information acquiring section. As a result, the receiver can reduce its power consumption.