摘要:
Fast data patterns with desired edge positions are provided. A pattern generator (PG) circuit 10 stores and provides data patterns and respective position control data. A delay circuit 16 delays a clock CLK to produce a position control clock according to the position control data. An output flip flop 18 provides the data patterns following to the position control clock. The position of the clock is controlled as an operation reference of the data pattern and, as a result, controls the edge positions of the output data pattern.
摘要:
A pyroelectric infrared detector or infrared ray receiving element comprising a plurality of pyroelectric operating areas, utilizing one of the operating areas as an infrared radiation detection area having a light-transmissive surface electrode. The electrical signal produced in the signal detection area is compensated by an electrical signal produced in another pyroelectric operating area having a light-reflective surface electrode. Temperature drift and noise due to vibration are drastically reduced through the compensation.
摘要:
A disclosed heat radiation arrangement includes a substrate that has a first surface on which a heating element is installed; a heat radiating member that abuts a surface of the heating element via a thermal conductive elastic member, the surface of the heating element being on an opposite side with respect to a side of the first surface; and a casing to which the substrate and the heat radiating member are attached, wherein the substrate is secured to the casing within a region between two extended sides and on opposite sides of the heating element when viewed in a direction perpendicular to the first surface, these two extended sides being defined by extending two opposite sides of the heating element, which form outer edges of the heating element, toward outer edges of the first surface.
摘要:
There is provided a panel structure for an electronic apparatus that is capable of exhibiting two types of design images. During daytime hours for example, a design-applied portion of a panel main body can be visually recognized through a panel made of a light transmitting material. During nighttime hours for example, when light is conducted from one X direction-wise end to the other x direction-wise end in the panel, as well as from the other x direction-wise end to one X direction-wise end in the panel 1, the design-applied portion is shielded with the light illuminating the panel. In this way, by making a difference between the daytime visual impression and the nighttime visual impression of the panel, it is possible to impart two types of design images to the panel structure.
摘要:
A pulse train generating circuit has a pattern generating circuit 10 that includes a memory 9 to store pattern data and reference voltage data, and synchronously provides the pattern data and the reference voltage data from the respective terminals A and B. A digital to analog converter 14 converts the reference voltage data into a reference voltage signal. A LPF 12 slopes the pulse edges of the pattern data. A comparator 16 compares the reference voltage and the output of the LFP 12 to produce a pulse train of which edge positions are changed. The resulting jittered pulse train is derived from a reference pulse train.
摘要:
An in-vehicle player which is mounted in a dashboard in a passenger room of a vehicle comprises: an outer housing to be assembled in a mount space provided in the dashboard; a device body contained in the outer housing; and a cushion member interposed between the outer housing and two side surfaces of the device body, wherein the cushion member is made of viscous elastic material, the cushion member has an end surface which is substantially parallel to a shearing direction thereof and stuck to a mount surface of the device body by viscosity thereof, and the cushion member has another end surface which is substantially parallel to the shearing direction and stuck to a mount surface of the outer housing by viscosity thereof, thereby to attach the cushion member to be elastically deformable in the shearing direction between the outer housing and the two side surfaces of the device body.
摘要:
The system for measuring the spillover signal from a transmitter to a receiver in a same frequency repeater or a booster has a frequency conversion device which slightly offsets the transmission frequency from the reception frequency, and a signal detector which measures the offset frequency component in the reception signal. The offset frequency is around 100 Hz, which is higher than the fading frequency, and low enough not to affect the operation of receivers. The measured spillover level is used to control the gain of the repeater, and/or to cancel the spillover signal, so that the repeater has the maximum gain without suffering from oscillation.
摘要:
In finish annealing process for a grain-oriented electrical steel strip or sheet, an improvement is disclosed which comprises coating the grain-oriented electrical steel strip or sheet with an annealing separator having a water content adjusted to not more than 10%, drying the coated strip or sheet, forming it into a strip coil, and finish annealing the strip coil within the inner cover of an annealing furnace while controlling the pressure of the gas atmosphere within the inner cover.
摘要:
A decoking apparatus suitable for use on a reaction vessel for the thermal cracking of heavy petroleum oils the apparatus essentially including a rotatable main injection pipe to be disposed in the reaction vessel and having a multitude of jet nozzles along its length, and a second or auxiliary injection pipe positioned in the proximity of the main injection pipe to inject a scrubbing liquid over the outer peripheral walls of the main injection pipe to prevent deposition of coke. The main and auxiliary injection pipes are both supplied with heavy petroleum oil to remove the coke deposition from the reactor wall by the heavy petroleum oil jets from the main injection pipe while wetting the exterior of the main pipe with the heavy petroleum oil injected by the auxiliary injection pipe.
摘要:
A pulse delay circuit induces lager jitter to faster input reference pulse trains than before. A buffer receives a reference pulse train and provides non-inverted and inverted pulses. Low pass filters (LPF) and comparators receive the non-inverted and inverted pulses from the buffer and provide pulses having delayed leading and trailing edges. Dividers divide the delayed pulses by 2 to produce the respective pulse trains having a half frequency. An XOR gate produces an exclusive OR of the delayed and divided pulse trains to provide a pulse train having delayed leading and/or trailing edges relative to the reference pulse train. If the delays by the LPFs and comparators are changed, the output pulses from the XOR gate have jitter.