摘要:
Provided is a digital camera including: a camera body (1) that includes a body mount to which a lens unit, which forms an optical image of a subject, can be attached; an image sensor (8) that is disposed in a body chassis (3) of the camera body (1) to convert the optical image of the subject into image data; a main circuit board (11) to which an image sensor (8) is electrically connected; and an electronic viewfinder (6) that includes a monitor on which a through image captured by the image sensor (8) is displayed, wherein a conductive shielding member (33) is disposed in the body chassis (3) in order to electromagnetically shield a region between a space in which the image sensor (8) and the main circuit board (11) are disposed from a space in which the electronic viewfinder (6) is disposed.
摘要:
An imaging device of the present invention, which is an imaging device for shooting images or video of a photographic subject, includes: an imaging element for taking an optical image of the photographic subject and generating image data therefrom; a main circuit board for conducting signal processing on the image data generated by the imaging element; an imaging element flexible cable that is connected to the main circuit board and on which the imaging element is mounted; a mount for fixing the imaging element and that includes a metallic component; a metal plate disposed between the imaging element and the main circuit board. The imaging element flexible cable includes an imaging element flexible cable GND which has a ground potential, and the imaging element flexible cable GND is connected to the metal plate.
摘要:
A receptacle structure includes a housing structure, a terminal insulating board, a first terminal and a second terminal. The housing structure is configured to be mounted on a printed wiring board and to accommodate a plug. The terminal insulating board includes a top face and a bottom face that is opposite to the top face. The terminal insulating board is disposed inside the housing structure with the bottom face facing towards the printed wiring board. The first terminal is connected to the printed wiring board via the first rear connection part and to the terminal insulating board. The second terminal is connected to the printed wiring board via the first front connection part and to the terminal insulating board. The first front connection part has a width narrower than the first rear connection part and is connected to the printed wiring board away from the first rear connection part.
摘要:
A circuit board is arranged on an end face of a lens barrel on a lens mount side and installed with an electronic circuit device, a plurality of connection terminals which are arranged in an electrically insulating state in the lens mount and serve to connect the electronic circuit device on the circuit board with an electronic circuit device inside a camera body, and a wiring member is for connecting the plurality of connection terminals with the circuit board, where the wiring member is provided with a ground connection section which is connected to a ground pattern of the circuit board and also electrically connected to a connection terminal that is to be a ground terminal among the plurality of connection terminals, and an extended wiring pattern is for electrically grounding the ground connection section on a metal portion of the lens mount.
摘要:
In a signal transmitter for a multiple differential transmission system including the signal transmitter, a signal receiver, and a signal transmission path including first to third signal lines, first to third differential driver transmit first to third output signals and inverted first to third output signals from the first to third output signals responsive to first to third bit information signals, the first output signal and the inverted third output signal are combined and transmitted to the first signal line, the second output signal and the inverted first output signal are combined and transmitted to the second signal line, and the third output signal and the inverted third output signal are combined and transmitted to the first signal line. The first to third differential drivers of the signal receiver detect polarities of terminal voltages generated across terminal resistances connected between adjacent signal lines and output bit information signals.
摘要:
In a signal transmitter for a multiple differential transmission system including a signal transmitter and a signal receiver connected via three signal lines, first and second differential drivers generate first and second output signals of bipolar four values and having a first signal voltage level, and inverted first and second output signals, responsive to first and second bit information signals. A third differential driver generates a third output signal of bipolar four values having a second signal voltage level, and an inverted third output signal, responsive to a third bit information signal. The first output signal and the inverted third output signal are combined and transmitted to the first signal line, the second output signal and the inverted first output signal are combined and transmitted to the second signal line, and the third output signal and the inverted second output signal are combined and transmitted to the third signal line.
摘要:
A plasma display device capable of reducing an electromagnetic interference wave due to a driving current flowing in a plasma display panel is provided. The plasma display device includes a plasma display panel having electrodes that are parallel to each other, a driver circuit board for applying a voltage to the electrodes, a chassis conductor holding the plasma display panel and to which a ground of the driver circuit board is connected, and a first additional conductor plate provided to the chassis conductor via an insulating layer and to which grounds of at least one circuit board in circuit boards other than the driver circuit board are attached.
摘要:
A plasma display device includes a plasma display module having a plasma display panel provided with a plurality of parallel electrodes, a circuit board for applying a voltage to the electrodes, and a chassis conductor configured to hold the plasma display panel and to which a ground of a circuit board is coupled, and further includes a cylindrical conductor portion configured to surround the plasma display module.
摘要:
A checking unit includes a power net extractor for extracting a power net with power attribution, which is segmented by a power-decoupling element, with reference to circuit design data of a printed wiring board; a parts number extractor for extracting a parts number of an integrated circuit connected to the extracted power net; a parts headcount calculator for calculating a headcount of the extracted parts; a judging unit for comparing the extracted parts headcount with a predetermined reference value; and a representing unit for representing a name of the power net and the parts number of the integrated circuit as an unprocessed location of power decoupling when the headcount is larger than the reference value, thereby inspecting quickly whether a power supply in use, shared by each of the integrated circuits, is decoupled at higher frequencies by the power-decoupling element.
摘要:
A differential transmission line that has three or more signal lines and with which there is little unwanted radiation noise is provided. The differential transmission line 2 is provided with three signal lines 2a, 2b, and 2c that transmit differential signals from a differential driver IC1 to a differential receiver IC3, and the majority of the signal lines 2a, 2b, and 2c is provided in conductor layers T2 and T3 of a printed circuit board 4. The signal lines 2a, 2b, and 2c are provided with a signal line parallel segment, a signal line route length adjustment segment that is on the differential driver IC1 side and that connects from differential signal output terminals 1Ea, 1Eb, and 1Ec in the differential driver IC1 to the signal line parallel segment, and a signal line route length adjustment segment that is on the differential receiver IC3 side and that connects from the signal line parallel segment to differential signal input terminals in the differential receiver IC3, wherein the signal lines 2a, 2b, and 2c are formed such that their signal line route length adjustment segments on the differential driver IC1 side are equal in length to one another.