Abstract: A solid-state imaging device includes a pixel array that is quadrilateral and includes pixels arranged in rows and columns, where each of the pixels accumulates an electric charge resulting from photoelectric conversion. The pixel array includes: a first area including first pixels for obtaining a captured image; and a second area including a second pixel for individually identifying the solid-state imaging device. The second area is provided in the vicinity of at least one corner among four corners of the pixel array, where the vicinity is a range of a predetermined number of pixels away from the at least one corner. The second pixel includes circuit elements or optical elements different from circuit elements or optical elements in each of the first pixels.

Abstract: A balanced filter suitable for a reduction of the filter size. The balanced filter comprises strip-line resonators (SL1a, SL1b) constituting resonance electrodes coupled to an unbalanced terminal, strip-line resonators (SL3a, SL3b) coupled directly to balanced side terminals and strip-line resonators (SL2a, SL2b) coupled to the balanced side terminals through impedance elements (Z).

Abstract: A stacked dielectric band-pass filter is disclosed, which enables widening of a passband to a side of a high band of 8 GHz or more. Within a stacked dielectric block, a pair of first ?/4 resonator electrodes that are formed on approximately the same plane, and connected to input terminals or output terminals via lead conductors respectively, two capacitance electrodes that are opposed to the first ?/4 resonator electrodes via a dielectric respectively, and formed on approximately the same plane, a ?/2 resonator electrode for connecting the capacitance electrodes to each other, and a pair of second ?/4 resonator electrodes that are opposed to the capacitance electrodes via a dielectric respectively, and formed on approximately the same plane, are buried.

Abstract: A balanced filter suitable for a reduction of the filter size. The balanced filter comprises strip-line resonators (SL1a, SL1b) constituting resonance electrodes on the unbalanced side, strip-line resonators (SL2a, SL2b) disposed in adjacently opposed relation to the strip-lines on the unbalanced side and constituting resonance electrodes on the balanced side, strip-line resonators (SL3a, SL3b) disposed in adjacently opposed relation to the strip-lines on the balanced side and constituting stage constituting resonance electrodes, and impedance elements (Z) coupling the resonance electrodes on the balanced side to the stage constituting resonance electrodes.

Abstract: A balanced filter suitable for a reduction of the filter size. The balanced filter comprises strip-line resonators (SL1a, SL1b) constituting resonance electrodes on the unbalanced side, strip-line resonators (SL2a, SL2b) disposed in adjacently opposed relation to the strip-lines on the unbalanced side and constituting resonance electrodes on the balanced side, strip-line resonators (SL3a, SL3b) disposed in adjacently opposed relation to the strip-lines on the balanced side and constituting stage constituting resonance electrodes, and impedance elements (Z) coupling the resonance electrodes on the balanced side to the stage constituting resonance electrodes.

Abstract: A stacked dielectric band-pass filter is disclosed, which enables widening of a passband to a side of a high band of 8 GHz or more. Within a stacked dielectric block, a pair of first ?/4 resonator electrodes that are formed on approximately the same plane, and connected to input terminals or output terminals via lead conductors respectively, two capacitance electrodes that are opposed to the first ?/4 resonator electrodes via a dielectric respectively, and formed on approximately the same plane, a ?/2 resonator electrode for connecting the capacitance electrodes to each other, and a pair of second ?/4 resonator electrodes that are opposed to the capacitance electrodes via a dielectric respectively, and formed on approximately the same plane, are buried.

Abstract: A base band of a ?a wave generated by a ?a/4 resonator is used as it is, a triple wave of the ?a wave generated by the resonator is shifted to a low frequency side, and the fundamental wave and the triple wave are complemented by a pass band, generated by a ?b/2 resonator. Consequently, a flat pass characteristic is secured in a band from the fundamental wave to the triple wave.

Abstract: Under circumstances where communication devices such as mobile phones are required to be diversified, laminate filters are required to have attenuation-band characteristics which are steep on both low-frequency and high-frequency sides. The prior-art laminate filter has the problem that an attenuation band is formed only on the low-frequency side or on the high-frequency side. A laminate filter has stripline patterns that are first, second, and third resonant elements disposed on a dielectric layer, a capacitively coupled (C-coupled) pattern disposed between the first and second stripline patterns, an inductively coupled (M-coupled) pattern disposed between the second and third stripline patterns.

Abstract: A balanced filter suitable for a reduction of the filter size. The balanced filter comprises strip-line resonators (SL1a, SL1b) constituting resonance electrodes on the unbalanced side, strip-line resonators (SL2a, SL2b) disposed in adjacently opposed relation to the strip-lines on the unbalanced side and constituting resonance electrodes on the balanced side, strip-line resonators (SL3a, SL3b) disposed in adjacently opposed relation to the strip-lines on the balanced side and constituting stage constituting resonance electrodes, and impedance elements (Z) coupling the resonance electrodes on the balanced side to the stage constituting resonance electrodes.

Abstract: A base band of a ?a wave generated by a ?a/4 resonator is used as it is, a triple wave of the ?a wave generated by the resonator is shifted to a low frequency side, and the fundamental wave and the triple wave are complemented by a pass band, generated by a ?b/2 resonator. Consequently, a flat pass characteristic is secured in a band from the fundamental wave to the triple wave.

Abstract: Under circumstances where communication devices such as mobile phones are required to be diversified, laminate filters are required to have attenuation-band characteristics which are steep on both low-frequency and high-frequency sides. The prior-art laminate filter has the problem that an attenuation band is formed only on the low-frequency side or on the high-frequency side. A laminate filter has stripline patterns that are first, second, and third resonant elements disposed on a dielectric layer, a capacitively coupled (C-coupled) pattern disposed between the first and second stripline patterns, an inductively coupled (M-coupled) pattern disposed between the second and third stripline patterns.

Abstract: A radio frequency filter having at least two dielectric resonators in juxtaposition, each resonator including a tubular dielectric body. Formed on the dielectric body of each resonator are an inner and an outer conductors and various other conductors including a terminal conductor for connection of the filter to external circuitry. In order to assure positive isolation of the terminal conductors of both resonators from each other, the outer conductors are provided with extensions which intervene between the terminal conductors for preventing then from being capacitively coupled together.

Abstract: A radio frequency filter having at least two dielectric resonators in juxtaposition, each resonator including a tubular dielectric body. Formed on the dielectric body of each resonator are an inner and an outer conductors and various other conductors including a terminal conductor for connection of the filter to external circuitry. In order to assure positive isolation of the terminal conductors of both resonators from each other, the outer conductors are provided with extensions which intervene between the terminal conductors for preventing them from being capacitively coupled together.

Abstract: In producing an electret element having piezoelectric properties by subjecting a vinylidene cyanide copolymer to a polarization treatment, the copolymer is heat-treated at a temperature below the glass transition temperature thereof prior to or simultaneously with the polarization treatment to thereby increase the longitudinal piezoelectric effect (Kt).

Abstract: A hand-carriable, compact color meter for indicating proper amount of adjustment of color compensation filters interposed in the light path of a color printer for the compensation of color balance of the light illuminating a film or the slide set on the printer. The color meter includes an indicating lamp, a photocell to be exposed to the light passing through the film or slide, a plurality of optical color filters selectively disposed in front of the photocell to provide the photocell with spectral sensitivities corresponding to the spectral sensitivity of the printing paper, a plurality of fixed or variable resistors selectable in correspondence to the selection of the color filter, and an electric circuit for actuating the indicating lamp in accordance with the relationship between the output of the light measuring circuit and a reference voltage commensurate with the selected one of the resistors.