摘要:
A system for selectively illuminates a light source that illuminates a power indicator of a video apparatus when the indicator distracts a viewer. The power button illumination is selectively set to be extinguished or illuminated when the video apparatus is powered on by means of an on-screen menu as an example. Extinguishing the power button light source does not affect the ability of the indicator to become illuminated to provide information to a viewer regarding the operating status of the video apparatus such as when a TV projection lamp has failed.
摘要:
An integrated circuit (IC) includes an internal clock generator apparatus that provides various modes of operation of the integrated circuit. The internal clock generator apparatus includes a clock generator portion that is operable to provide a clock signal for various circuitry/logic of the integrated circuit and a control portion that is operable to receive a control signal to cause the integrated circuit to operate in one of several modes. In particular, the clock generator apparatus is responsive to the control signal, preferably from an external source, to bypass the clock signal, introduce a test clock signal for digital testing, and isolate and/or measure a delay through the clock generator portion of the clock generator apparatus.
摘要:
A video apparatus (2) comprises an input switching matrix (6), to which a video input (4) is coupled, the video input (4) comprising a terminal (YPrPb) for a component video signal and a CVBS terminal (Video) and/or a S-VHS terminal (S-Video), a synchronization signal detector (7) and a color decoder (8) coupled to the input switching matrix (6), an output switching matrix (9) coupled to the input switching matrix (6) and to the color decoder (8), and a microcontroller (10) coupled to the input switching matrix (6) and to the synchronization signal detector (7) for controlling the input switching matrix (6). The detection of the component video signal is made automatic by means of the microcontroller (6), the synchronization signal detector (7) and the color decoder (8).
摘要:
A circuit is proposed which has a memory to which input data can be written at different write addresses with a first clock rate and from which output data can be read at different read addresses with a second clock rate. The memory can be fed a write reset pulse that resets the write address to an initial value. In addition, the memory can be fed a read reset pulse by means of which the data are output in a fixed temporal relationship. Finally, the circuit proposed is provided with switching means in order to derive the read reset pulse from the write reset pulse. This ensures that the two reset pulses cannot occur simultaneously.
摘要:
The invention relates to a device for correcting still image errors in film scanners, wherein at least one movement vector describing the movement of at least one part of the image between two scanned images is derived and an actuator arranged in the path of the video signals obtained by said scanning is controlled according to said vector. The at least one movement vector of a sequence of images is respectively fed to a filter, said filter containing a plurality of registers, wherein the at least one movement vector can be fed to said registers and a state variable can be assigned thereto, said variable being set if the respective register content is valid, the contents of the registers with the set state variable are accumulated by a factor thereof when a new movement vector occurs, the state variable is reset if the state variable is set before the new movement vector occurs and the content of the respective register exceeds a predetermined threshold value, the contents of one of the registers with reset state variable is set to zero, the state variable (Bi(k)) is set to one and an average value is formed from the contents of the registers with a set state variable, which is fed to the actuator with an inverted sign.
摘要:
In a studio camera (SC), comprising an image pickup unit (PUU) for converting a scene into image signals, and a viewfinder (VF) for displaying the image signals on a viewfinder display (D), the viewfinder (VF) having a position adjustment mechanism (PAM) for allowing a camera operator (CO) to have an optimal view on the viewfinder display (D), the position adjustment mechanism (PAM) is automatically controlled so as to direct the viewfinder display (D) to the camera operator (CO).
摘要:
The invention relates to a rotation joint for conjoining two stacked speakers for a rotational satellite speaker system. The joint comprises first and second bases, the first base being integrally formed with a first fixing plate and a first connecting means, the second base being integrally formed with a second fixing plate and a second connecting means. The first and second fixing plates are extending parallelly in perpendicular to a common rotation axis of the joint. The first connecting means is rotatably engaged with the second connecting means. The first and second bases are detachably inserted into corresponding receiving spaces defined in upper and lower speakers. Advantageously, the rotation joint can be made at low cost and easily assembled and disassembled. Preferably, the first and second bases of the joint are interchangeable with each other.